Links From the Brink: Pipelines, Pesticides and Shrunken Brains

The month’s best (and worst) environmental news, along with other stories, science and context you don’t want to miss.

The news moves quickly — especially when it comes to environmental issues, which despite the threat of climate change still tend to get overlooked by major media outlets. We know how easy it is to miss critical stories and not be able to see the forest for the trees, so we’ve collected some of the best and worst news stories for the month, connected the dots to reveal a few trends, located updates to ongoing stories, and uncovered some new science and important transitions you won’t want to miss.

Welcome to Links From the Brink.

Best News of the Month: Keystone XL is kaput. TC Energy, the company behind the notorious pipeline, pulled the plug this month following more than a decade of protests. President Biden cancelled the pipeline’s permit a few hours after he took office, and that appears to have finally been TC’s signal to stop trying. It took ‘em nearly five months to admit defeat — even for a corporation, it’s hard to give up on your dreams.

Will similar, ongoing protests at the Line 3 pipeline have the same result? We live in hope — and also hope more protestors don’t get injured along the way (because things are escalating badly).


Worst News of the Month: Carbon dioxide levels reached another new high in 2020, capping out at 419 parts per million. This might seem shocking, since global greenhouse gas emissions famously fell 6% last year as a result of the pandemic, but it reflects all CO2 released over the years — gases that don’t just go away the minute we stop burning fossil fuels.

“We still have a long way to go to halt the rise, as each year more CO2 piles up in the atmosphere,” geochemist Ralph Keeling said in a statement. “We ultimately need cuts that are much larger and sustained longer than the COVID-related shutdowns of 2020.”

And imagine how much worse off we’d be if Keystone XL hadn’t been cancelled — or if Line 3 isn’t.


It’s All Connected: Stopping pipelines is great, but a new United Nations report warns that if we want to save the planet we need to address the twin crises of climate change and biodiversity loss.

It’s great to see both these threats being addressed at the same time. Now if only President Biden’s next budget would address the extinction crisis

(Oh, and on a related note, the UN also declared the next 10 years the “decade of ecosystem restoration.”)


The Missing Link … of Death: We’ve covered the dangers of rodenticides a few times here at The Revelator, most recently linking the poisons to the deaths of endangered wildlife in the United States. Well, Americans aren’t the only ones overusing these deadly concoctions. A new study out of Tasmania finds a frightening level of rodenticide-related deaths of wedge-tailed eagles — one of the Australian island’s apex predators.

wedge-tailed eagle
Photo: Rod Waddington (CC BY-SA 2.0)

Here’s the twist: Wedge-tailed eagles don’t eat rodents. They eat animals that eat rodents, which means the poisons are traveling up the food chain all the way to the top. The study didn’t identify which animals served as the missing link, but smaller birds like ravens could be the carriers.

The study found high levels of a rat poison called brodifacoum in dead eagles, as well as flocoumafen, an agricultural pest-control toxin that’s part of a group of chemicals called “second-generation poisons” that kill with a single dose. But while these second-generation poisons are quite fatal to rats, death isn’t instantaneous. “Because these poisons take a while to kill the rodents, the rodents can…eat far more poison than they actually need to kill themselves,” Birdlife Australia raptor specialist Nick Mooney told the Australian Broadcasting Company. This makes the rats themselves super-toxic (and deadly) to anything that eats them. “They’re little walking time bombs,” he said.

The problem isn’t limited to the island of Tasmania. Over on mainland Australia, dozens of owls have been found dead over the past 18 months, and autopsies revealed internal bleeding from wounds that should have healed. Second-generation rodenticides are anticoagulants, so scientists suspect the poisons caused these deaths as well.

And tragically, as scientists warn at The Conversation, this could just be the start of more to come.


Food for Thought? Intensive human contact correlates with smaller brains.

OK, this isn’t a general statement (although it kind of feels that way). It’s research about how centuries of husbandry have reduced the size of the brains in various cattle breeds. Still, it speaks volumes — and raises novel ethical questions about the ways we raise our food.

cattle public lands
Cattle grazing on public lands. Photo: Greg Shine, BLM

The Bright, It Burns: Our Google News Alerts about light pollution were operating in overdrive this month. Here are just a few of the recent headlines:

That last one about orbital debris — maybe the solution involves not putting up so many satellites to begin with. Could NEPA, an environmental law normally applied to terrestrial problems, provide a tool to do just that?

You can find our previous coverage on light pollution here.


Meow Max: Last year I wrote about the threat feral cats pose to Hawaii’s unique species. Well, things have gotten even worse in the past 12 months, as the pandemic slowed down the state’s trap and sterilization efforts. Now experts worry that hungry cat populations will have a baby boom, which could push native species even closer to extinction.


Renewables on the Rise: The United States consumed (good word, BTW) a record level of renewable energy in 2020 — 11.6 quadrillion BTUs, according to the U.S. Energy Information Administration. That’s 12% of U.S. energy consumption: way too low, but still progress.

And that progress will continue: New solar installations are projected to increase 24% this year, although the industry faces supply-chain issues and a tight labor market that could limit further growth.

line of solar arrays
Solar reserve putside Tonopah, Nevada. Photo: Dan Brekke (CC BY-NC 2.0)

Meanwhile, new research from the International Renewable Energy Agency finds that the renewable energy generation installed in 2020 delivers power cheaper than coal.

But don’t count the coal industry out quite yet. So far this year the United States has actually produced 9.5% more coal than it did by this point last year, according to data released June 24 by the EIA. (Sigh…)


City of Amphibians: Los Angeles just published a list of 37 “umbrella indicator species” that reside within the city limits, along with a plan to monitor them. The list includes Baja California tree frogs, great blue herons, mountain lions, North American Jerusalem crickets and — of course — bumblebees. If these species thrive, it will serve as a sign that the city is keeping its natural spaces healthy and connected. To find out how they’re doing, the city will post species observations on citizen-science platforms like iNaturalist, which they hope will also help keep residents engaged about their local wildlife and public spaces.

This appears to be the first list or program of its kind. Hopefully it can serve as a model for other metropolitan areas.

If you’re in the Los Angeles area, the public can participate in monitoring during (and presumably after) the L.A. Bioblitz Challenge that runs through Aug. 7 — just don’t get too close to those mountain lions.


Heartbreaker: Why a dying U.S. Army veteran keeps fighting to end the toxic military burn pits that, in all likelihood, caused his terminal cancer — even as he shops for his own coffin.

burn pit
A burn pit in Afghanistan. SIGAR Inspection Report, via Special IG for Afghanistan Reconstruction.

Lawbreaker? Will ecocide join the ranks of genocide and war crimes at the International Criminal Court? A new draft law defines ecocide as “unlawful or wanton acts committed with knowledge that there is a substantial likelihood of severe and either widespread or long-term damage to the environment being caused by those acts.” It will take at least four years for this proposal to become official law, and it will have to jump several hurdles along the way, but hey, that gives certain corporations (you know who you are) plenty of time to line up their defense attorneys…


What’s Next? July is already shaping up to be quite a month, with continued drought and record heatwaves, a potential wolf slaughter in Idaho, and more protests over Line 3 — not to mention showdowns over voting rights, infrastructure and so much more that will affect environmental issues for years to come.

What are you watching or waiting for in the months ahead? Good news or bad, drop us a line anytime.


That does it for this inaugural edition of Links From the Brink. For more environmental news throughout the month, including bigger stories you won’t find anywhere else, subscribe to the Revelator newsletter or follow us on Facebook or Twitter.

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Sizzling in the South: Gulf Coast Communities Fight for Equitable Climate Solutions

Miami residents already live with the ramifications of climate change. That’s why organizers there have teamed up with other regions to share ideas.

Millions of tourists still flock to Miami’s prized beaches, but each year the sea steals a little more of those fabled sands. South Florida could see more than two feet of sea-level rise in the next 40 years, according to the region’s scientists.the ask

For a city built on porous limestone and racial inequality, this reality is already seeping in. With such immediate concerns, Miami has become a frontline community in the fight against climate change.

But climate is not the city’s only challenge.

Miami-Dade is a majority-minority county with a gaping wealth gap. It’s also part of a state with a history of environmental exploitation and a climate-change record ranging from lackluster to downright hostile.

As city leaders raise funds and develop game plans to tackle climate challenges, local groups are pushing to make sure the region’s most vulnerable populations aren’t left behind.

The work is part of a growing effort across the South to tackle both climate change and inequity — and to show the importance of local, community-driven action in states where climate change concerns have taken a backseat.  To understand more about how Miami can make climate resilience equitable and how communities are banding together across the conservative Gulf Coast, The Revelator spoke to Zelalem Adefris, vice president of policy and advocacy for Catalyst Miami, a nonprofit working with low-wealth communities in Miami-Dade County.

Given the threats facing Miami, what would climate resilience for the city look like to you?

headshot
Zelalem Adefris of Catalyst Miami. Photo: Courtesy

Climate resilience is typically defined as being able to bounce back from a challenge. But I think our baseline is not necessarily where we want to be in terms of the wealth, prosperity and the ability of our communities to thrive.

For example, as sea-level rise affects the coast, people on higher elevation land, which typically are lower-income areas because they don’t have the coastal views, are now seeing housing costs rise exponentially and their communities are being targeted by developers. We call it climate gentrification.

We already have an affordable housing crisis here in South Florida. We have a lot of luxury condos and vacation homes for the very wealthy and not enough housing stock for people that actually live here.

So I hope that in the process of achieving resilience, working on climate justice, making whatever changes we need to make in order to take climate action, we’re also able to up that baseline to a higher expectation for all of our households across the county so people aren’t going back to a pretty low quality of life and are instead will be better off as we move.

What’s the public’s perception of climate change?

I would say most people already see climate change happening in their neighborhoods, but they might not always know that it is climate change. We’ll talk to people about extreme heat and how Miami has added almost two months of summer — so days over 90 degrees — since 1970. People who have been here for that long recognize that, they felt that change and how the years have gotten significantly hotter. So we don’t find too much pushback because unfortunately it’s our lived reality. Our work is more like naming that reality.

What kind of support for solutions do you see from state and local governments?

We’ve been working with the local government for a really long time. They are getting on board and coming up with climate action plans and are a great partner of ours. Sometimes we need to push, but ultimately we work really well with them.

I would say at the state level, unfortunately, we’re seeing a lot of preemption. There are bills and legislation being passed to actually move a lot of local decision-making to the state level, especially around environmental issues like climate change and plastic.

And as you can imagine, the state does not really move the needle on these issues at nearly the level of our local governments.

Miami became one of the first cities to appoint a chief heat officer. That’s a pretty serious admission about how climate change is affecting the area. How is the city tackling the problem of an increase in dangerously hot days?

Jane Gilbert is the one appointed to that role. She’s actually the former chief resilience officer of the city of Miami, so we know her well. She is working with us and other partners on pushing policy and county programming to address heat. For outdoor heat, so far that effort includes stuff like more tree canopy and addressing concerns about waiting for public transit with a really inefficient bus system while people have no cover to protect them from the heat. We’re also hoping to expand outdoor heat efforts to protections for workers too, because we have an agricultural economy here.

And then there’s also indoor heat issues, so being able to afford your electricity bill, having functioning air conditioning, having a quality of housing in which you don’t have cracks in the wall that leak all your cool air — and your money — out into the heat.

How does your work fit into broader climate resilience efforts, or challenges, in southern states?

Gulf South for a Green New Deal is an initiative to try to get together folks from all the Gulf South states — Florida, Texas, Louisiana, Alabama and Mississippi — to talk about strategies that are specific to our states.

I think having spaces for states in the South or other states with challenging legislative atmospheres is always good. It’s great to hear what’s coming out of states like California and New York, but it can be difficult sometimes here in Florida.

We don’t necessarily have the longstanding environmental institutions, but we do a good job of collaboration and leading with community voices first and community priorities. And we’ve had some powerful local wins throughout the years. I think anytime you see a conservative state making policy gains, there’s definitely something to learn from there.

In South Florida, since the state’s inception, there’s been an onslaught against the environment. Development has been prioritized in the entire history of the region, starting with the Everglades — you have to pave over the Everglades to even get here for the most part. So we have a legacy that needs to change.

But at the same time, for all of its existence, there’s also a legacy of people fighting for what’s right. That’s what we lean on as well.

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How the United States Must Help Sharks Around the World

American fisheries feed an intense global demand for shark fins. A new bill could help close several critical gaps in the rules.

Sharks should be afraid of us. After evolving as a highly specialized lineage of fish for over 400 million years and surviving five major extinction events, they now face the most serious threat they’ve ever faced. A 2021 study published in Nature found that 71% of sharks and rays have been fished out of the sea in the past 50 years. At least 25% of shark species are now at risk of extinction.

One major threat to sharks comes from overfishing, driven largely by the high demand for the Asian delicacy known as shark fin soup.

shark fin soup
Shark fin soup. Photo: Andrew Currie (CC BY-SA 2.0)

This market for high-value shark fin, coupled with the low or nonexistent market for shark meat, has led to the practice called shark finning — cruelly and wastefully catching and killing a shark just for its fins. This often includes discarding the finless, still-living shark overboard. Most sharks need to swim to breathe, and the victims of this practice either suffocate or bleed to death on the ocean floor — a painful and ignoble death.

Shark fins, often called the “blood diamonds of the sea,” are associated with cruelty, human slavery and these creatures’ looming extinction. Impacts from habitat loss and warming seas serve as the nails in the coffin for many shark species in the fin trade.

Shark finning has been illegal in U.S. fisheries since the year 2000. It’s similarly banned in more than 30 countries and has been condemned by the United Nations. Although finning itself is forbidden in many places, the trade and sale of shark fins acquired through other means is still legal in nearly all countries, including 36 U.S. states that allow the harvesting of sharks as long as the full body is brought to port. This contributes to the decline of many shark populations.

Driven to save sharks from extinction, environmental advocates and legislators have worked state by state, from Hawaii to New York, to reduce the trade of shark fins as well as reduce overfishing. In October 2020 Florida became the 14th state to ban the sale and trade of shark fins. This was a positive step for protecting sharks from poaching and targeting sharks for their fins by limiting flow and pressure on domestic populations. Perhaps more importantly, these bipartisan state bills are largely supported (and in many cases sponsored) by Asian Americans, who send a message across the ocean that sharks are more important swimming in the sea than in a ceremonial bowl of soup.

However, the lucrative shark fin trade still allows endangered shark fins to flow across state lines and be sold and exported. Nearly all fins from sharks harvested in the United States are exported to Hong Kong, Singapore and ultimately China for consumption in luxury shark fin soup.

Shark fins
Shark fins for sale in Hong Kong in 2006. Photo: Gregg Tavares (CC BY 2.0)

But the United States has been paving the way for international shark protection. The state of Hawai‘i just passed a law that will prohibit shark fishing entirely in state waters — and was the first state in the Union to prohibit the sale and trade of shark fin.

Now we have a chance to take what started in the states to the next level. In the Senate, Cory Booker (D-N.J.) reintroduced the Shark Fin Sales Elimination Act (S 1106), which is similar to a bill passed through committee but killed in the 116th Congress last year by Senator Marco Rubio. The Senate bill was included as an amendment to a Senate legislative package, known as the Endless Frontier Act, which successfully passed the Senate June 8 for World Oceans Day. The House companion bill HR 2811, sponsored by Gregorio Kilili Camacho Sablan, a Democrat representing the Northern Mariana Islands, and Michael McCaul (R-Texas) is now under consideration.

Why Action in the U.S. Will Help Globally

Shark fins’ high value incentivizes commercial fisheries in the United States to supply Asia with the products. The American shark-fishing industry, which profits from fin sales, opposes the proposed law and claims trade restrictions will hurt “sustainable” shark fisheries. These fisheries sell shark meat but benefit much more from the higher value received from fins. Without the value of the fin, the low value of the meat would lead to reduced pressure on domestic shark populations and send a global message that the dish coveted by wealthy consumers is a luxury that is harmful to the ocean.

To address the U.S. contribution to the global trade and impact on shark species, several major problems must be addressed. Among them are the ways shark fisheries report and label their catches. In the United States a shark fin is only classified as a “fin” if it’s dried. This means shark fins that were removed postmortem or are either wet, kept on ice, or preserved in some other manner are not classified as fins, which leads to a vast underreporting of sharks killed.

Another issue stems from the lack of federal regulations tracing catch and fins, resulting in the inability to truly monitor and track the quantity of shark fins traded in and out of the country every year. Previous studies have shown the U.S. reports dramatically smaller levels of shark fins imported to and exported from the country than other nations report on their sides of the trade.

Similarly, the illegal trade must be addressed. Like many wildlife products that are valuable and easily transported, shark fins are also associated with smuggling and other crime. On Sept. 28, 2020, a report regarding an illegal shark fin trading ring shipping fins in and out of Florida found the company illegally exported around 12,500 pounds of shark fins between 2016 and 2017.

smuggled shark fins
Smuggled shark fins recovered during Operation Thunderbird in 2019. Photo: USFWS

The Endless Frontier Act and HR 2811 would address these issues, and we urge the legislatures to pass these vital protections.

It’s Time to Act

Sharks are many things. They are an ancient lineage of highly diverse fish that fill a breadth of ecological niches in marine ecosystems and play a significant role in many cultures’ mythology and heritage. Sharks also loom large in the media, and (incorrectly) in some people’s minds as fearsome and vicious man eaters. In reality large sharks are both apex predators and keystone species, meaning that the success and health of the ecosystems in which they live are also in critical danger of collapse. These fish maintain the balance of ocean ecosystems that provide the very oxygen humans need to survive. Recent studies have even indicated that the presence of predatory sharks can protect carbon sinks in the ocean, mitigating climate change.

shark fins
Shark fins drying on a sidewalk. Photo: Nicholas Wang (CC BY-SA 2.0)

And yet despite their importance on so many levels, and despite many years of calls for their protection, sharks are still being overfished at an alarming rate, and the shark fin trade threatens large species of sharks like hammerheads and oceanic whitetip with extinction in our lifetimes.

We can solve that. Although regulating fins is not a comprehensive panacea to save sharks, the U.S. can reduce threats and save endangered sharks that swim in its waters and focus on other threats ranging from habitat loss to illegal fishing. We need the federal government to take action on stricter regulations of protected species, including no-retention of oceanic whitetips, with these or any other new laws to address the gaps creating these problems.

It’s time we act in the interests of wildlife and ocean health for the survival of all species. We can start with saving sharks from extinction.

The opinions expressed above are those of the authors and do not necessarily reflect those of The Revelator, the Center for Biological Diversity or its employees.

California’s Opportunity to Shape Worldwide Biodiversity Policy

The United States has failed to take leadership in the Convention on Biological Diversity. Its most biodiverse state can fill that gap.

California, like the rest of the world, must wrestle with a hard truth: Our climate has changed. As we face another water-shortage crisis, we must acknowledge a sobering reality: We’re not in a drought. This is our new normal. And we need to adapt.

It’s becoming increasingly clear that we can’t solve our drought, or the myriad other environmental crises, without protecting our ecosystems. And we can’t protect our ecosystems without acknowledging that this work is globally connected. That’s why we — as a member of California’s State Assembly, the political and organizing director of the California League of Conservation Voters, and an environmental policy advisor and community leader — believe our state must become a leading force for engagement in the United Nations Convention on Biological Diversity (CBD).

sea lions on rocks
Sea lions in La Jolla, California. Photo: Shutter Runner, (CC BY-NC 2.0)

This fall California will have the opportunity to make a difference at the Convention’s 15th Conference of Parties in Kunming, China, where 196 nations will meet and agree on a strategy to protect nature called the “Global Biodiversity Framework.” Even though the CBD is the world’s only treaty to protect biodiversity, the United States never ratified it. Instead, our nation is an “observer” to the treaty and has been mostly disengaged — a massive leadership gap.

But California is now an observer, too. This was finalized in December by the Newsom administration, thanks to the California Natural Resources Agency’s Secretary Wade Crowfoot and a statewide coalition of environmental organizations that advocated alongside us throughout 2020. We join other actively participating subnational governments from around the world like Quebec (Canada), Scotland (United Kingdom), Aichi Prefecture (Japan) and São Paulo State (Brazil) — all of which are committed to protecting our environment and also wield enormous political and economic influence. As an observer, California can make a powerful impact as a leading U.S. voice at the 15th conference by advocating for ambitious action and partnering with other subnational governments to increase our clout, especially if the federal government fails to do so.

But it’s important that we develop this opportunity the right way and that the California Natural Resources Agency, which is leading our participation, meaningfully engages California’s organizations and communities at every step.

California Coastal National Monument
California Coastal National Monument. Photo: David Ledig/BLM

We’ve seen in California that biodiversity is a unifying issue. Protecting nature is fundamental to mitigating climate change, growing affordable and healthy food, preserving clean air and water, limiting the spread of disease, and advancing the health and well-being of families and children. This is about social and environmental justice, from equitable green cities and clean energy transitions for our workforce, to job opportunities arising from restoring our ecosystems and becoming sustainable.

As residents of America’s most biodiverse state, Californians know this firsthand. Our economy, from agriculture to tourism, is heavily dependent on biodiversity. We rank first in the nation in agricultural production, and the value of our crops that depend on pollinators like insects is approximately $11.7 billion. In 2020 the benefit to California’s economy from national park tourism was approximately $4.276 billion. In our cities the value of services from our urban trees, from cooling buildings to removing air pollution (which reduces healthcare costs), is estimated at $1.4 billion. The Angeles National Forest is responsible for about 384,000 acre-feet of water per year, with a value to Los Angeles area households of $4.12 billion.

Despite this California’s biodiversity is threatened by urban sprawl, climate change, invasive species and more. We’ve lost about 1 million acres of natural area since 2000 and about 20% of our native species. Along our coast the loss of kelp forests has devastated marine species and our fishing industry.

Kelp and sardines
Kelp and sardines. Photo: Robert Schwemmer, NOAA National Marine Sanctuaries

In response we’re already stepping up as a role model and a leader. Last fall Governor Newsom signed an executive order making California the first state to commit to protect 30% of our land and coastal waters by 2030, which is currently a key target of the CBD’s draft framework. California’s 30×30 commitment covers everything from coastal wetlands to urban parks and healthy soils management. And it establishes a new California Biodiversity Collaborative. In January President Biden followed suit, making a similar 30×30 pledge in in one of his first executive orders — a powerful example of how when California leads, the nation often follows.

These state and local efforts are crucial. We still have a long way to go to deliver on our promises, but we can and must get there. The impacts of biodiversity loss, from pandemics to worsening climate change, do not recognize borders. As a wealthy nation, the U.S. should not stand by while other nations and poorer communities bear the cost of damages to which we contribute.

But as an observer, California can contribute critical input to the framework’s development. We can advocate to increase its effectiveness and ensure its success by:

    • Engaging our diverse communities and stakeholders in the process of developing our state’s input on the goals, targets, implementation and other aspects of the framework.
    • Raising global ambition to protect nature by leveraging our expertise, global relationships and economic clout.
    • Teaming up with other subnational governments to press for accountability and action.
    • Showcasing forward-thinking policies and proposals and being a model stakeholder.
    • Being a role model to other U.S. states in hopes of increasing America’s subnational government engagement, as well as our national engagement.

Any strategy to save nature is unlikely to succeed without strong participation, awareness and buy-in from local communities, including Indigenous peoples. California should not only engage local stakeholders in our input to the CBD, but also show the world how an inclusive approach can create a path to long-lasting success.

In addition, critical regional efforts and accomplishments across the state — such as adopting a partnership-based approach to management of marine protected areas, connecting wildlife corridors and habitat in Southern California, the Los Angeles County measure that will create parks in high-need areas, or crafting ecologically resilient responses to the growing wildfire issues — can provide an example to global policymakers of the power of local leadership to meet big goals. We must also work with our local environmental justice communities to inform global discussions about equity, education and awareness. Local engagement will be key to ensuring strong implementation and accountability in meeting biodiversity goals.

California has much to share, but we still have much to learn. By participating in the convention, we will benefit from the exchange of knowledge and the creation of relationships. We will learn from other observers, such as Indigenous peoples, subnational governments and the many nations that are party to this treaty.

Newt on a log
California newt. Photo: J. Maughn (CC BY-NC 2.0)

California has already proven its commitment to global environmental engagement. When Trump announced his intention to quit the Paris Agreement in 2017, we led states and cities nationwide in a united effort to double down on climate action. In 2019 California attended the 25th climate COP  in Madrid and helped fill the leadership vacuum left by the Trump administration. We proved that California can be a critical player on the world stage working to solve the biggest challenges of our time.

Now we’re linking biodiversity to our efforts and, together with our diverse California communities, we will be a game changer for the future. We must get it right for our state and the world.

The opinions expressed above are those of the authors and do not necessarily reflect those of The Revelator, the Center for Biological Diversity or its employees.

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Species Spotlight: The Buffy-Headed Marmoset Is Menaced on Multiple Fronts

This miniature monkey from Brazil faces a losing battle with disease, invasive species and an ever-shrinking habitat.

As the rainforests of Brazil disappear, so do their unique inhabitants. A tiny monkey represents the dangers faced by much of Brazil’s biodiversity but also illustrates the opportunity we have to save them.

Species name:

The buffy-headed marmoset (Callithrix flaviceps)

Description:

This miniscule marmoset is a small, neotropical primate that weighs just 1 pound (460g) on average. It’s endemic to the Atlantic forests of the southeastern region of Brazil, where it has the smallest distribution of any species in the Callithrix genus.

Buffy-headed marmoset
Courtesy Mountain Marmosets Conservation Program

Buffy-headed marmosets have a light, gray-brownish coat, with a cream-colored face, a yellowish-beige head and neck, and short, yellowish ear tufts. One endearing characteristic is the grayish shade of the fur above their eyes, which gives their faces a clownish appearance.

Where it’s found:

Species SpotlightThese marmosets live mainly in the Atlantic forest fragments in the states of Espírito Santo and Minas Gerais, in southeastern Brazil. They range from south of the Rio Doce in Minas Gerais into the mountainous region of Espírito Santo state. The southernmost part of the species’ range extends west into eastern Minas Gerais, where it’s found in scattered localities in the Rio Manhuaçu basin as far as the Manhuaçu municipality.

The range of the species distribution overlaps with that of buffy tufted-ear marmoset (C. aurita), where a natural hybridization zone occurs.

Major threats:

The species inhabits areas that have suffered the effects of numerous anthropogenic pressures through extensive fragmentation and deforestation of forests due to expansion of urban areas, mining and agricultural activities. This has led to the replacement of native flora by pastures, coffee and eucalyptus plantations, as well as harmful activities like burning that are associated with agricultural expansion.

Buffy-headed marmoset
Photo: Peter Schoen (CC BY-SA 2.0)

In addition to these threats, the introduction of invasive primate species such as the common marmoset (C. jacchus) and black-eared marmoset (C. pencillata) precipitated a serious increase in competition and hybridization with the buffy-headed marmoset. Hybridization is particularly concerning as it leads to the loss of the genetic characteristics and could ultimately be a cause of extinction if the current scenario persists.

Another serious threat to the species comes from emerging diseases such as yellow fever, which since the last epidemic outbreak in 2016 has eliminated countless individuals of the species in the wild. We estimate that this has led to a sharp drop in C. flaviceps in some regions.

IUCN Red List status:

The buffy-headed marmoset status has only recently been updated to critically endangered by the IUCN Red List of Threatened Species due to a drastic population reduction. This decline is in large part the consequence of habitat destruction, the effects of hybridization and competition with invasive marmoset species, and the yellow fever epidemic that has reduced at least one of the more significant subpopulations by 90%.

Notable conservation programs or legal protections:

The Brazilian Ministry of Environment, through the ICMBio (Chico Mendes Institute for Biodiversity Conservation), has created National Action Plans that aim to prioritize conservation actions to support endangered species. The National Action Plan for the Conservation of the Atlantic Forest Primates and the Maned Sloth (PAN PPMA), created in 2018, covers 13 native species, including the buffy-headed marmoset and the closely related buffy-tufted marmoset, also an endangered species.

There are also initiatives for the conservation of marmosets, such as the Mountain Marmosets Conservation Program, which has been working in collaboration with several researchers and national and international institutions to put into practice the actions established by the PPMA PAN.

Through this program a series of guides, protocols and decision keys are currently being developed to conduct studies and research with C. flaviceps. and C. aurita. One of the actions originated from this international project was the creation of the Mountain Marmosets Conservation Center at the Federal University of Viçosa, which is the first center of primatology in the world focused exclusively on both mountain marmosets, and in developing conservation activities in situ and ex situ.

Our favorite experiences:

Carla: My favorite experience with this species came at a moment of great stress and concern.

I was conducting a primate community assessment at my study site, at the Private Protected Reserve of Natural Heritage — Feliciano Miguel Abdala in Caratinga, Minas Gerais, following the yellow fever outbreak that hit the southeastern region of the Atlantic forest late in 2016.

This site was once known for having one of the most important subpopulations of the species. However, the forest had become eerily quiet, and after several months of intense field work there were no signs of the groups that used to range this 4 square mile (1,000-hectare) forest fragment. I began to suspect the worse and to fear that the marmosets had been decimated and perhaps become locally extinct.

Fortunately, while I was conducting this monitoring, I finally managed to locate a couple of groups. It was a tremendous relief to me to see these animals and to know that they had not become locally extinct. Since that time I have been keeping track of these primates and I hope that our work will lead us to new findings and benefit their conservation in the wild.

Sarisha: I’m currently studying the buffy-headed marmoset at Macedônia Farm, a private natural reserve in Ipaba, a small town located in central Minas Gerais. Here I lead a population survey to contribute knowledge about the species locally and to develop conservation strategies.

There hadn’t been any previous studies focusing on the species in this region, and we only had a few reports of their historic presence. Nevertheless, we managed to discover a few healthy and large groups, bringing a positive perspective for the species in the area.

For me, my favorite experience with this species has been observing these animals in the wild, in what remains of their natural habitat. The buffy-headed marmoset is a remarkable little primate, so for me it is these moments during fieldwork where I can appreciate their beauty and witness their dexterity in the trees.

What else do we need to understand or do to protect this species?

To effectively conserve this marmoset we need urgent studies concerning the occurrence of hybridization, interaction with the invasive species and the impacts of deforestation and yellow fever.

On top of that, there are significant knowledge gaps regarding their general behavior and ecology that we would like to fill by conducting further research.

Key research:

  • Ferrari, S. F. (1988). The behaviour and ecology of the buffy-headed marmoset, Callithrix flaviceps (O. Thomas, 1903) (Vol. 1988). University College London.
  • Ferrari, S. F. (2009). Social Hierarchy and Dispersal in Free-Ranging Buffy-Headed Marmosets (Callithrix flaviceps). The Smallest Anthropoids, 155–165. https://doi.org/10.1007/978-1-4419-0293-1
  • Hilário, R. R. (2003). Padão de Atividades, Dieta e Uso do Habitat por Callithrix flaviceps na Reserva Biológica Augusto Ruschi, Santa Teresa, ES. Ecologia, May 2009, 1–115.
  • Malukiewicz, J. (2019). A Review of Experimental, Natural, and Anthropogenic Hybridization in Callithrix Marmosets. International Journal of Primatology, 40(1), 72–98. https://doi.org/10.1007/s10764-018-0068-0

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Laws Must Adapt for Climate Refugees

As climate change pushes people and families across international borders, they’ll find few protections. That can be fixed.

By Katharine M. Donato, Georgetown University; Amanda Carrico, University of Colorado Boulder, and Jonathan M. Gilligan, Vanderbilt University

Climate change is upending people’s lives around the world, but when droughts, floods or sea level rise force them to leave their countries, people often find closed borders and little assistance.

Part of the problem is that today’s laws, regulations and international agreements about migrants, asylum-seekers and refugees offer few, if any, special protection to those forced to leave because of climate conditions.

National laws focus primarily on violence and conflict as drivers of forced migration and rarely consider environmental stress. In fact, no nation’s immigration system currently has environmental criteria for admission. International agreements such as the Global Compact for Safe, Orderly and Regular Migration and the Global Compact for Refugees mention the impacts of natural disasters and environmental degradation, but they are not legally binding.

The Biden administration has started exploring ways to identify and assist people who are displaced by climate change. But climate-driven migration is complicated.

Often, the environmental stressors associated with climate change are only one factor pushing people to migrate. For example, many migrants from Guatemala trying to enter the U.S. have struggled under severe droughts or storms, but many also fear crime and violence if they move to cities in their homeland to find work. Others are seeking opportunities that they and their children don’t have.

As experts in migration and climate risk, we have been studying how climate change is displacing people within their own countries and often pushing them to cross borders. Here are some of the key challenges the Biden administration faces and reasons this effort can’t wait.

How many climate migrants are there?

No one knows exactly how many climate migrants exist now or how many people will become climate migrants in the future, but current estimates are high.

In the coming years, the rapid pace of climate change combined with a global population nearing 8 billion people is likely to create unprecedented stress around the world. Recent studies show that dry spells and drought are already associated with increased migration.

As that stress intensifies, the need to escape hazards and threats is replacing the desire to seek opportunity as the key driver of international migration.

Two women carry small children and water jugs across a dry, empty landscape
Drought displaced hundreds of thousands of people in Ethiopia in 2016. The vast majority stayed within the country’s borders. UNICEF Ethiopia/2016/Tesfaye, CC BY-NC-ND

Disasters caused more than 23 million people a year to relocate over the past decade, the majority of them within their own countries, according to the World Meteorological Organization’s State of the Global Climate Report. The Intergovernmental Panel on Climate Change predicts that this will increase as global warming intensifies. The World Bank projects that climate change will drive 143 million people in Latin America, Africa and South Asia alone to leave their homes by 2050. Many come from poor regions that have contributed little to global warming.

Legal definitions of ‘refugee’ are narrow

Until recently, scholars identified wars and conflict as principal sources of displacement.

Starting in the 1980s, some scholars began using the term “environmental refugee” for those forced to leave their homes because of disruptions related to human or naturally produced environmental events, such as desertification, deforestation, land degradation and rising sea levels.

But the international definition of refugee doesn’t include climate change.

The U.N.’s 1951 Refugee Convention establishes the obligations and responsibilities its member nations have to refugees. It defines refugees as people who are forced to flee their homelands because of fear of persecution based on race, religion, nationality, membership in a particular social group or political opinion.

In contrast, international law does not clearly define migrants or climate migrants. Thus, all migrants are subject to the immigration laws of their destination countries. Since these immigration laws also lack environmental criteria for accepting migrants, climate migrants often have nowhere to go.

Changing views of climate migration

While climate migrants are not legally considered refugees, many are highly vulnerable.

Lacking resources, climate migrants are likely to be poorer than most other international migrants. This may put them at a disadvantage as more countries’ policies scrutinize the economic prospects of immigrants before permitting them entry.

Yet climate migrants do not fit cleanly into categories of those who migrate voluntarily and those who are displaced by factors beyond their control.

Take the case of Ioane Teitiota, a man from the island nation of Kiribati who sought refugee status in New Zealand in 2013. He was ultimately deported on the grounds that his life wasn’t in immediate danger in his homeland. But while Kiribati isn’t underwater yet, it is under stress as habitable land becomes more scarce and water supplies become contaminated by saltwater.

The U.N. Human Rights Commission rejected Teitiota’s appeal in 2020, but it also warned that governments could be in violation of U.N. agreements if they send people back to situations where climate change has created life-threatening risks.

Rethinking the role of disasters

Climate change and other environmental stresses have increasingly become drivers of displacement, but in ways that do not fit neatly within the bright dichotomy that law and policy use to distinguish between refugees and other people on the move.

We believe it’s time for countries worldwide to rethink the role of disasters and climate change in migration, recognize the rights of those displaced by environmental causes and reform international and national laws and policies, which are out of date with what’s known today about climate change and displacement. Nations may be reluctant to offer what may seem like a new portal for migrants, but evidence suggests those numbers will only rise, and countries need to be prepared.

Katharine M. Donato, Donald G. Herzberg Professor of International Migration, and Director, Institute for the Study of International Migration, Georgetown University; Amanda Carrico, Associate Professor of Environmental Studies, University of Colorado Boulder, and Jonathan M. Gilligan, Associate Professor of Earth & Environmental Sciences, Vanderbilt University

The Conversation

This article is republished from The Conversation under a Creative Commons license. Read the original article.

The Big Threat of Fences Across the West

The American West contains 620,000 miles of fencing, threatening the migration of pronghorn, mule deer and other species.

With the arrival of spring each year, pronghorn that winter in the Upper Green River Valley of Wyoming begin a journey of more than 100 miles to their summer habitat near Grand Teton National Park.

It’s one of the longest migrations of large mammals remaining in North America. But their trek — and a similar one made by mule deer — is made more difficult by human developments along the way, particularly fences.

“The total length of fencing around the world may now exceed that of roads by an order of magnitude, and continues to grow due to a global trend towards land partition and privatization,” wrote researchers of new U.C. Berkeley-led study published in the Journal of Applied Ecology.

Wyoming is no exception. There the researchers found nearly 3,800 miles of fences in their study area alone — twice the length of the U.S.-Mexico border. Their research tracked GPS-collared pronghorn (Antilocapra americana) and mule deer (Odocoileus hemionus) during two years of their migrations to better understand how fences affect the animals’ movements and which kinds of fences may be most difficult.

Fences aren’t always bad for wildlife — some can keep animals off roads, for instance — but they can also pose threats.

For animals like pronghorn and mule deer, fences can halt or change migration routes. Animals that attempt to go over or under also risk becoming entangled and perishing. Juveniles are particularly at risk. A 2005 Utah State University study of ungulate migration across Colorado and Utah found the youngsters died in fences 8 times more often than adults. Many others died of starvation or predation when they weren’t able to cross fences and were separated from their mothers.

dead pronghorn caught in fence
A radio-collared pronghorn perishes after being tangled in unmodified barb-wire fencing while trying to cross. Photo: Texas Parks and Wildlife Department and the Borderlands Research Institute (CC BY 2.0)

Most of the fences the animals encounter run along the edges of livestock pastures, private property lines or roads, and are composed of four or five strands of barbed wire. Some have woven wire at the bottom, the most common type of fence for corralling sheep but also the most lethal to wildlife.

“A better understanding of wildlife responses to fencing is … critical to conservation,” the researchers of the U.C. Berkeley study wrote.

But here’s what we do know: The study found that both pronghorn and mule deer “were extensively affected by fences.”

Each year an average mule deer encountered fences 119 times and pronghorn 248 times. In about 40% of those encounters, the fence changed the animal’s behavior. And that behavior, they found, was more complex than simply crossing or not crossing the fence.

Often the animals “bounced,” or rapidly moved away from the fence when they couldn’t quickly cross. “Such avoidance of fences can drive animals away from high‐quality resources and reduce habitat use effectiveness,” they wrote.

Other times the animals paced back and forth along the fence line, a behavior that could strain energy resources. And occasionally they became trapped in areas with a high concentration of fences, like livestock pastures.

This can create other problems.

“Constraining animal movements for prolonged periods within limited areas may trigger human–wildlife conflicts,” the researchers found. Pronghorn, for example, have been seen in new developments in Colorado Springs, where they’ve been hit by cars and shown up at the airport.

Mule deer and pronghorn also behave differently when encountering fences. Mule deer are more likely to jump a fence, and pronghorn to crawl under.

“The reluctance to jump means that pronghorn movements can be completely blocked by woven‐wire sheep or barbed‐wire fences with low bottom wires — the two most common types of fences across their home range in North America,” the researchers found.

Considering that the American West may have upwards of 620,000 miles of roadside and pasture fences, “fence modifications for conservation might be more urgent than currently recognized,” they wrote.

Efforts are underway to encourage or require more “wildlife-friendly” fences that “are very visible and allow wild animals to easily jump over or slip under the wires or rails,” according to recommendations from Colorado’s Parks and Wildlife agency.

Further guidance from Sustainable Development Code, an organization that works on sustainability issues with local governments, recommends using smooth, instead of barbed wires; limiting the height of fences 42 inches; allowing 16 inches of clearance at the bottom; and including wide spacing between wires.

person working on fence
Raising net-wire fencing to a height that pronghorn can crawl under. Photo: Texas Parks and Wildlife Department and the Borderlands Research Institute (CC BY 2.0)

“There are other forms of wildlife-friendly fencing, including ‘lay-down’ or temporary fences that permit wildlife crossing during critical migratory seasons,” the group reports.

Making fence lines more visible is also helpful to other animals, including birds. Low-flying birds, like grouse, also die in fences across the West’s rangelands.

That’s why wildlife managers are beginning to push for removing or modifying fences, but the effort can be costly. To address this concern, the researchers developed a software package, available to wildlife managers and other researchers, that highlights fences posing the biggest threats to animal movement. They hope it will help make the best use of limited conservation funds and help protect critical migration pathways.

“We demonstrate that when summed and mapped, these behaviors can aid in identifying problematic fence segments,” they wrote. And that could help save a lot of pronghorn, mule deer and other animals.

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Fisher Rewilding: How Washington State Is Restoring a Native Carnivore

Years of work in the Pacific Northwest is paying off. It started with preserving the ecosystem so native species would have something to return to.

There aren’t too many animals that will eat a porcupine for lunch, but fishers are at the top of the list.

Fishers (Pekania pennanti) are members of the mustelid family and a relative of otters, minks and martens. Quick on the ground and agile tree climbers, these forest dwellers couldn’t out-maneuver trappers in the 1800s, who relentlessly pursued the housecat-sized carnivores for their high-value pelts.

This overexploitation, combined with a loss of habitat from logging and other development, drastically reduced fisher populations across their ranges in the northern U.S. and Canada.

Some populations have rebounded, but on the West Coast, critically low numbers persist today. Despite that, most fishers lack protection; so far only one population in the Southern Sierra Nevada is federally listed as endangered.

A legal battle by a coalition of environmental groups (including The Revelator’s parent organization, the Center for Biological Diversity) seeking federal protections for Pacific fishers has dragged on for more than two decades.

In the meantime, the state of Washington has taken fisher recovery into its own hands. And as new trail cam footage of four kits in the Northern Cascades showed this spring, there’s cause for optimism.

Building a Recovery

The emerging population of fishers in Washington has been years in the making.

A wildlife survey in the 1990s confirmed that fishers had likely been extirpated from the state decades ago.

But some people refused to give up on the species. In 1998 fishers were added to Washington’s list of endangered species, and a few years later a feasibility study affirmed that local forests still held adequate resources for fishers. After that, the nonprofit Conservation Northwest, the state’s Department of Fish and Wildlife, the National Park Service, and other federal, tribal and nonprofit partners developed a plan to reintroduce the animals.

“We had the habitat, but we didn’t have the fishers. And there weren’t any nearby that could move into Washington and occupy these historical habitats,” says Jeff Lewis, a biologist with the state’s Department of Fish and Wildlife. “We identified three areas in the Olympics and Cascades that we really wanted to get fishers restored to, which were the bulk of their historical range in state.”

Between 2008-2010 biologists relocated 90 fishers from British Columbia into the Olympic mountains. Then the effort moved to the South Cascades with 81 fishers, mostly from British Columbia and a handful from Alberta. Finally, another 89 — this time all from Alberta — were released into the North Cascades beginning in 2018.

Researchers tracked the animals for the first several years with radio transmitters, then set up camera traps on the ground once potential dens were identified to see if the fishers were reproducing.

What the data tells us for the Olympic population, for which we have the most information so far, is that the fishers are widely distributed, which is good,” says Lewis. “They’re reproducing, which is good. And they’re consistently occupying what appear to be good areas and they’re even using areas we didn’t expect.”

While the results are encouraging, it’s not a total slam dunk yet.

“The founding population involved fewer individuals than what would have been desired to have the level of diversity to ensure long-term sustainability,” says Dave Werntz, science and conservation director at Conservation Northwest. “So we plan to put another handful of fishers into the Olympics this winter.”

The researchers are still gathering long-term data on the two other Cascade populations. “We’re hopeful, and there are good initial signs,” says Lewis.

One of the reasons for that optimism is the fact that so much suitable habitat for fishers remains. But that’s only the case because conservationists stepped up in the 1990s to protect the northern spotted owl and the old-growth trees that fishers need, which resulted in the creation of the Forest Service’s Northwest Forest Plan.

“The plan set up a system of old-growth forest reserves and reserves along riparian areas for spotted owls that essentially caused the end of logging of the fishers’ preferred habitat,” explains Werntz. “That’s usually areas that have suitable den sites, which are generally big trees — either dead or live — with cavities. Those are typically found in their highest abundance in old-growth forests.”

Ecological Niche

Washington’s fisher rewilding effort has involved a partnership of different government and non-government agencies, years of work, and lots of public and private resources.

Lewis says the effort is worth it, for a number of reasons.

First, fishers are native members of the ecosystems and have unique qualities that can only be partially replaced by other carnivores.

“One of the most noteworthy things is that fishers are the most efficient carnivore of porcupines,” he says. “Where fishers have been eradicated through over-trapping or the loss of habitat, porcupine populations can explode and foresters get upset because they keep eating all the trees.”

Fishers also do all the other things that carnivores do: They poop; they spread seeds and pollen spores; they themselves are scavenged when they die, allowing their nutrients to come back into the soil. They also eat a number of prey species and can contribute toward ecosystem stability through all of those roles, he says.

Fisher runs through the snow
A fisher in Olympic National Park. Photo: NPS / Kevin Bacher.

“But to me,” Lewis adds, “there’s a bigger reason to do this work. Ecosystems are complicated and interconnected and we have a really limited understanding of how all the pieces work together,” he says. “So until we fully understand ecosystems, the best approach is what Aldo Leopold suggested: Let’s just make sure we keep all the parts when we’re tinkering with them. Let’s make sure we haven’t eliminated a role or a piece that’s important to the stability of an ecosystem. That to me is how I think of it relative to the fisher’s role.”

And there’s one more reason to restore fishers, too, he says. People overharvested fishers because of the value of their pelts, and now it’s possible to right that wrong.

“We have an opportunity,” he says. “We can bring this critter back because we have the habitat. When you look at fur-bearer conservation success stories, the bulk of those are ones where the species recovered after over-exploitation. Because you can fix that, you can stop trapping. You can move animals and restore populations in areas where they were extirpated.”

That’s harder to do for animals that have lost significant portions of their historical habitat, though.

“It’s awfully hard to restore habitat across the historical range of a species like the swift fox,” Lewis says. “That’s just a harder thing to do. You can’t restore grasslands to where they occurred in the 1700s and 1800s. But we can help fishers.”

Public Perception

Fisher restoration also presents an opportunity for public engagement in conservation — especially because many people haven’t even heard of fishers or seen one before.

“We try very hard when we’re doing the releases to make sure that kids are involved and it’s an educational opportunity and that they can experience the thrill of being involved in a recovery effort,” says Werntz. “That’s going to lead to an appreciation and a continued sense of wonder at nature that will carry with them throughout their lives.”

Child looking at fisher
A child peers into a box holding a fisher before its release in Olympic National Park in Dec. 2016. Photo: NPS / Kevin Bacher.

He says he’s encouraged by what he’s seen so far with the re-establishment of fishers in Washington.

One of the things that’s made the effort so successful, he says, is the partnership between nonprofits, government agencies and tribes. “Different partners can do things at different times,” he adds. It allowed them to raise money for a variety of sources, carry out work across the border in Canada, and get through some challenging political obstacles, including a government shutdown.

“That kind of diversity in coordination with partners really allowed us to be a resilient recovery team,” says Werntz. “And I think that cooperative coalitions may be an important model for future recovery work.”

And some of that work is already underway. Returning fisher populations to the state, it turns out, is just one of multiple efforts to restore native animals in the region. Conservation Northwest is also involved in other recovery efforts for grizzlies, gray wolves, Canada lynx and wolverines.

And like the spotted owl protection efforts benefitting fishers, there’s hope that native species reintroductions and restoration can have ecosystem-wide value.

“The notion is if you provide for those wide-ranging species, you’re going to be providing habitat and conditions for a whole suite of other organisms,” Werntz  says. “And then you’re really enhancing biological conservation across the landscape. And that’s the underlying goal.”

 

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Life After Wildlife Trafficking: What Happens to Rescued Animals?

A serious lack of data about the fate of wildlife saved from illegal trade leads to calls for better information and accountability.

In 2013 authorities at Bangkok’s main airport busted a smuggler carrying 54 ploughshare tortoises from Madagascar crammed in a suitcase. The seizure of what amounted to about 10% of the critically endangered species’ wild population made news around the world.

What happened to those animals later did not generate as many headlines, says Jan Schmidt-Burbach, head of wildlife research and animal welfare at World Animal Protection.

Half of the tortoises died soon after their rescue — a surprise, he says, because the animals are tough and should have been able to survive. The rest went to a government rescue center in Thailand, only to end up among a group of animals that later disappeared and were suspected stolen. That second suspected crime was possible, in part, because there was resistance from center managers, he says, to marking the tortoises’ shells to make them traceable.

Cases like this illustrate two of the biggest problems with the fight against the illegal wildlife trade: the scarcity of regulations for the treatment of animals after they’ve been rescued, and the lack of data regarding what happens to them.

“That lack of transparency with confiscated wild animals opens doors to laundering and just inappropriate handling,” says Schmidt-Burbach.

International pressure to tackle the illegal wildlife trade has increased in recent years. But a resulting increase in successful seizures of live wildlife also means authorities are often overwhelmed with animals, including species that require specialized care or are dangerous.

Falcon cage
A trafficked falcon seized in Spain during Operation Thunderbird. Photo: Interpol via USFWS.

A recent paper published in the journal Animals examines what happens to these creatures, and why. Focusing on Southeast Asia, a wildlife trading hot spot, the researchers found that illegally traded wildlife are often not handled in a way most beneficial to the animals due to a combination of corruption, exploitation, and lack of policy, funding, expertise and capacity.

“Yes, they were essentially rescued,” says conservation scientist Shannon Noelle Rivera, the paper’s lead author. “But seizure does not mean rescue by any means, and a lot of times they end up right back in the trade.”

Handled correctly, some of these animals could be successfully returned to their home habitats and help replenish populations of threatened species. Instead, they are often kept in captivity, in centers that lack the expertise, funding or the will to care for them properly.

Others disappear back into the wildlife trade. Sometimes it’s because corrupt officials sell them back into the illegal wildlife market. Other times it’s because directives to care for seized animals often lack the resources to do so. Many are released en masse, whether the environment is suitable or not, because that’s the easiest thing to do.

As Rivera’s research found, large amounts of lizards, snakes and birds are being released haphazardly and not in their native habitats: “The wrong species are getting dumped all over the place,” according to a source quoted in the paper. This puts the animals at risk of dying, becoming invasive, overwhelming the ecosystem, or carrying new diseases to other fauna and humans.

The Vagaries of “Disposal”

Other researchers say the paper, although limited to Southeast Asia, reflects a global problem.

“The key themes they’ve identified definitely ring true,” says Neil D’Cruze, global head of wildlife research at World Animal Protection and an academic visitor at the Wildlife Conservation Research Unit at the University of Oxford. The best outcome, he says, is not just about following laws but ensuring the animals’ wellbeing.

The Convention on International Trade in Endangered Species of Wild Fauna and Flora, an international agreement to regulate wildlife commerce, has guidelines for what it terms the “disposal” of rescued animals. The three options include returning them to wild, captivity or euthanasia, with the latter, as the CITES resolution states, “the simplest and most humane option available.”

But tracking which option countries choose has been difficult. D’Cruze co-authored a study in 2016 that found 70% of CITES signatory countries didn’t provide any data on animal disposals on their mandatory animal trade reports because they weren’t required to do so at the time. CITES finally added a field for this information in 2018, but it’s still not compulsory. Indeed, more recent research found that only 32% of CITES signatory countries had even submitted the mandatory reports.

Once an animal is trafficked, it’s often considered lost to conservation, says Rivera, who also points out that the term “disposal” comes with the connotations of discarding.

“Just ethically looking at the exploitation and corruption that can continue after the confiscation is really important,” she says. “We’re trying to stop [wildlife trafficking] through a lot of enforcement measures,” but what happens to the animals next “just kind of slips under the radar.”

Many animals end up in various forms of captivity of extremely varying quality of care. Some sites that position themselves as true sanctuaries are actually little more than thinly veiled tourist attractions, or are reliant on tourism dollars for funding, which can create a cycle of keeping animals in perpetuity. There is also a lack of transparency about the source of these animals — some facilities have been linked to the illegal wildlife trade.

“Trying to understand where these facilities are getting their animals is extremely difficult,” says Rivera.

Stronger legislation, political support, a reduction in demand, global participation, and wildlife seizure management are among Rivera’s recommendations. A registry of rescue centers, with licensing, oversight and inspections would be a good start, she says.

D’Cruze agrees that any care centers must have strict guidelines to follow that mean they are genuine sanctuaries and lifetime care facilities.

“That means no selfies and cuddling with the cubs, no performances or tricks or unnatural behaviors, no walking with them on a leash,” he says.

The Complexity of Releases

Of course, if at all possible, an animal rescued from the wildlife trade should be returned to its native habitat.

But releasing a trafficked animal is much more complicated than finding an open field or a forest. These animals are often wounded, malnourished or dehydrated, or they’ve potentially been exposed to pathogens when they were held in close contact with other animals and species. They often require quarantine or specialized veterinary care, expensive prospects that require expertise and commitment from governments.

 

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“Even if there is expertise and funding, the next biggest hurdle tends to be doing it properly and mitigating the risks of harming wild populations,” says D’Cruze. That includes minimizing other animals’ exposure to diseases and releasing animals in areas with enough territory to sustain populations. Also, some captive animals have imprinted on humans to the extent that they can’t take care of themselves in the wild, can be come nuisance animals, or are particularly vulnerable to hunters.

One success story is the Wildlife Alliance’s work with the Cambodia government to create a protocol for animals from seizure through to release or lifetime care. Thomas Gray, former director of science at the nongovernmental organization, calls the repopulation of native animals around the UNESCO World Heritage site Angkor Wat “a fantastic success story.” But, he cautions, “only a tiny proportion of the animals from the wildlife trade have been able to be released there.”

Over the years, says Gray, thousands of snakes, turtles and other reptile species have been released into the wild in Cambodia by the Wildlife Alliance and the government. Yet there is no post-release information on whether they survived and what, if any, effects they had on their environments.

Snakes
Snakes awaiting release in 2008. Photo: Wildlife Alliance

“We’re assuming that they are surviving,” he says. “We’re assuming that we’re returning them into the right places ecologically. And we’re assuming that they’re not having an impact on the ecology of the places where they are released. And I think those are all safe assumptions, but there’s no hard data that supports that.”

Can This Problem Be Solved?

Much of the burden to manage the results of the illegal wildlife trade is on the countries where these animals were seized or sourced, says Rivera. But the market demand for these exotics comes overwhelmingly from elsewhere. According to recent research, wealthy nations are driving this trade — the so-called WEIRD countries: western, educated, industrialized, rich and democratic. The biggest market by far is the U.S., with France and Italy trailing.

That’s why one of Rivera’s recommendations is for global participation in managing seizures, particularly when the source or intervening countries don’t have the resources. “We can’t just leave this up to countries that are doing the most seizures, or countries that have the most wildlife trade demand.”

D’Cruze agrees. If countries allow the legal importation and trade of exotic animals, he says they should help manage the consequences, especially as the legal and illegal trade are linked with, for example, poached animals being passed off as legal, captive-bred animals.

And law enforcement and seizures alone aren’t enough — what happens afterwards is equally, if not more, important, according to the experts.

“All interventions need to be designed in such a way that the care of any live animals are explicitly built into your interventions,” says Gray. And it’s particularly important for any entity funding this work to encourage governments to create protocols for these animals, he says.

The process of developing those protocols starts with better information. The current lack of data means we’re missing the opportunity to develop and refine approaches for post-seizure release into the wild, and for finding ways to repopulate endangered species’ populations.

“I think if we were able to show how to do it successfully, or even how to do it unsuccessfully, then we can start rehabbing these animals a lot better and have that be a more viable option,” says Rivera.

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The Race to Build Solar Power in the Desert — and Protect Rare Plants and Animals

As development of large solar projects speeds up, researchers race against the clock to study the ecosystem implications.

The Biden administration greenlighted a major new solar development in May. The Crimson Solar Project will stretch across 2,500 acres of public lands in the desert of Southern California and provide enough electricity to power 85,000 homes.

The 350-megawatt photovoltaic facility takes the country another step toward meeting the administration’s stated goal of slashing greenhouse gas emissions in half in the next 10 years. A White House statement in April proclaimed that when it comes to tackling climate change, “The United States is not waiting, the costs of delay are too great, and our nation is resolved to act now.”

Already Biden’s team has approved the first utility-scale offshore wind project in the Atlantic and taken a big step in the more complicated effort to develop wind energy in the Pacific Ocean’s deeper waters.

Expect the pace of new renewable energy projects — including utility-scale solar like Crimson — to continue to accelerate. That’s a good thing — except when this urgency collides with the glacially slow pace of life in desert ecosystems that haven’t experienced much previous construction, roads or other development. There, researchers say, we may need to proceed with more caution and more information.

“In the desert, you’re really talking about going into an undeveloped ecosystem,” says Steven Grodsky, assistant unit leader of the USGS New York Cooperative Fish and Wildlife Research Unit and a professor at Cornell University. “And anytime you have a major disturbance in an ecosystem that has a generally low frequency of natural disturbance, you might shake things up a bit.”

Grodsky and colleagues have spent years researching how solar projects could affect soil, plants and animals in the Mojave and Sonoran deserts. Some of that research has been published, more is forthcoming, and much, much more is still needed to better understand how the region’s ecosystems will fare.

“All of those [greenhouse gas reduction] goals entail really aggressive buildouts of renewable energy, which is a great thing in the sense that we can supplant and displace fossil fuels,” he says. “But that also gives us an opportunity to be able to guide the sustainable development of these renewables.”

And to do that, we’ll need to better understand how solar developments may affect various plants and animals.

Desert Life

Long-lived and slow-moving, the desert tortoise is perhaps the poster child for the pace of life in the desert — and an example of the threats that disturbances can cause.

Road-building, urban development, livestock grazing and off-road vehicles have devastated the tortoises, which spend a large chunk of their 80-year lifespan in burrows. The combination of threats has led to the Mojave Desert tortoise (Gopherus agassizii) being listed as threatened under the Endangered Species Act.

Tortoise headshot
A Mojave Desert tortoise. Photo: USFWS

Now more solar development, and the bulldozers and fences that come with it, have added another threat. And it’s one that will be felt by more than just tortoises. The area is also home to burrowing owls, kit foxes, desert iguanas, kangaroo rats, and hundreds of rare plant species.

Grodsky is currently conducting a study on federal land run by the Bureau of Land Management in the Riverside East Solar Energy Zone, an area designated for large-scale solar development about 250 miles east of Los Angeles in the Sonoran Desert. “We are working to get a better understanding of how the solar facilities might affect animal movement and their use of corridors,” he says. “So things like desert kit foxes, coyotes, bobcats, badgers.”

He and colleagues have already been studying the interactions between pollinators and plants, including queen butterflies (Danaus gilippus) and Mojave milkweed (Asclepias nyctaginifolia), in other areas with solar developments.

“What we found so far is that solar development is likely affecting soils, which is in turn affecting where and how Mojave milkweed can grow, which is affecting butterfly species that lay eggs on, and have caterpillars that eat, Mojave milkweed,” he explains.

A lot of the research is ongoing, and findings are preliminary, but one thing is clear already: Disturbing desert soils is a big deal.

“If you disrupt soils and then remove vegetation, that can have effects on ecosystems,” he says. “The more intensive the disturbance of desert soils and plants, you’re really opening up an opportunity for invasive species colonization.” So solar developments could stamp out native plants and also cause invasive ones to proliferate.

How the sites are prepared for development can make a difference in the ecological impacts. Some sites are bulldozed. That’s the worst-case scenario for all native plants.

Other times plants are mowed, which can be less disruptive. But it really depends on what’s growing.

Cacti and Mojave yucca (Yucca schidigera) respond poorly to both those scenarios. “In our study, we found seven years after site preparation they hadn’t recovered,” says Grodsky. Creosote bushes (Larrea tridentata), however, appear to grow back after they’re mowed, but it takes a while. Again, desert life is slow.

Site preparation isn’t the only factor that can affect soil and plants. A study led by Karen Tanner of the University of California, Santa Cruz examined how the shade and runoff from solar panels affect common and rare plant species. The seven-year investigation found that in good rainfall years the shade suppressed plant growth for the rare Barstow woolly sunflower (Eriophyllum mohavense). In contrast, additional runoff from the panels increased the population of the common Wallace’s woolly daisy (E. wallacei), which was unaffected by the shade.

“There’s a need to reconcile rare species conservation and green energy goals, and our work highlights some pitfalls that can hinder effective management of rare plant populations in the desert southwest,” the researchers concluded.

Design Changes

It’s possible that tweaking some of the way solar facilities are constructed and managed could aid more plants and animals. Preliminary research suggests that leaving some habitat patches within solar projects could have positive conservation benefits.

“I think that there could be alterations to the design of desert solar facilities, the spacing between individual arrays, and the creation of habitat passes within solar fields at varying sizes,” says Grodsky. “If we are going to put solar facilities in these ecosystems, let’s try to make sure they have the least impact on soil, plants and animals.”

At a solar facility built in Nye County, Nevada in 2017, fences around the property’s perimeter were built with openings in places to allow desert tortoises and other species to pass through and access the habitat within the development. Panels were also placed 18 inches higher off the ground than the industry standard to better help vegetation return.

Fence opening
An opening in a perimeter fence that allows wildlife to access habitat inside the solar facility. Photo: USFWS

“Research and monitoring studies are underway to investigate the ability of native plants to persist under solar panels and how well the project area functions as habitat for wildlife,” according to the Fish and Wildlife Service.

Other projects are experimenting with combining pollinator-friendly plants and solar projects to create more ecological benefits.

Location, Location, Location

Of course there’s another option for reducing the harm to desert ecosystems from solar development — don’t build there in the first place.

A 2107 study led by Madison Hoffacker of the University of California, Davis focused on other options in California, including using the built environment — such as solar panels on existing rooftops, arrays on salt-affected lands that can no longer be used for farming, and “floatovoltaics” on the surface water of reservoirs.

The researchers found more than 3,200 square miles of available surfaces in just California’s Central Valley that would be good for solar development and not in conflict with agricultural uses or protected conservation areas.

“There’s this competition for finite land resources between all these competing land uses, including renewable energy development, agriculture, conservation and urbanization,” says Grodsky. But finding ways to co-locate projects for multiple benefits or using marginal lands could help reduce the need to dig up more of the undisturbed desert.

Inevitably, though, more solar projects will be built in the desert, and it will be important to understand where they’ll have the least impact and how to best manage them with desert species in mind, he says.

“Now’s the time for researchers in the ecological community to do our part, to conduct the research and to ensure that the development is as informed as possible about the ecological effects,” he says.

That will take buy-in from developers, incentives, policy and much more funding.

There’s also a disparity when it comes to timing. Life and science move slowly in the desert, but progress does not.

“Renewable energy development is growing faster and faster,” he says. “But scientists need to go and collect field data for at least a couple of years to get anything worthwhile, and then you have to analyze it and write it up. So you’re talking about four years, and within those four years you could have another 20 large-scale solar facilities built.”

Trying to ensure research and information keeps pace with development will remain a challenge. But more and more companies are realizing that building projects sustainably is better in the long run, he says. That may be because of better PR, lower mitigation costs down the road or environmental ethics.

“But I do think that in the end, the most sustainable solar energy development will end up being a win for everyone,” he says. “Industry, the general public and natural resource managers will all benefit.”

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