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By reversing a takeover by non-native species, native species have a chance at recovery in their natural habitats, according to a new study led by scientists from the University of California, Davis (UC Davis).

The study, published in the journal Biological Conservation, explored how removing invasive bullfrogs could affect the native western pond turtles, which have experienced a major decline in their range. As UC Davis reported, the turtles have disappeared from about half of their original range.

Some threats to the western pond turtles come from habitat destruction, development, pollution and disease, but invasive species are also a major threat, according to the Center for Biological Diversity. Reed canary grass and other invasive plants make it more difficult for turtles to find their nesting sites. Non-native animals such as bullfrogs, red-eared slider turtle and largemouth bass also pose threats by increasing competition for food, while bullfrogs prey on the pond turtles, furthering their decline.

An American bullfrog tadpole, left, is bigger than the young native northwestern pond turtle in this photo. Bullfrogs often prey on native turtles in the western U.S., contributing to their decline. Sidney Woodruff / UC Davis

“One reason American bullfrogs are among the top worst globally introduced pests is because they eat everything — anything that fits into their mouth,” Brian Todd, senior author of the study and a professor in the Department of Wildlife, Fish and Conservation Biology at UC Davis, said in a statement. “They’ve been causing declines to native species everywhere they’re introduced, which is around the world.”

From 2016 to 2022, researchers studied four sites in Yosemite National Park, two that maintained the bullfrog population and two that had the bullfrogs removed. To remove the bullfrogs, scientists captured bullfrog eggs and left them out to dry. For adult bullfrogs, they captured the frogs and euthanized them based on American Veterinary Medical Association guidelines.

In the ponds without bullfrogs, the researchers found that pond turtles were between two and 100 times more abundant compared to the ponds where bullfrogs remained.

The team also found that only larger, older pond turtles survived in the ponds with bullfrogs, with the turtles at these sites being up to 36% bigger and up to 97% heavier. The only juvenile pond turtles the researchers found at bullfrog-present sites were in the bullfrogs’ stomachs.

The field crew, including UC Davis scientists, hikes in the study area near Yosemite National Park. Sidney Woodruff / UC Davis

The eradication of the bullfrogs made the presence of other native animals, in addition to the pond turtles, more noticeable to researchers.

“As bullfrog presence declined, we started to hear other native frogs call and see native salamanders walking around,” said Sidney Woodruff, lead author of the study and Ph.D. candidate at UC Davis. “It’s nice to be able to go back to these sites and hear a chorus of native frogs calling again that previously would not have been heard.”

Although the authors noted that bullfrog eradication may not work at all ponds due to cost and time constraints, they explained that the study showed promise for using this approach in the most vulnerable conservation areas.

“While the challenges associated with invasive species removal are significant, our study shows the potential benefit of reversing species declines and restoring freshwater ecosystems,” they concluded.

Sidney Woodruff of UC Davis holds a northwestern pond turtle at their field site in Yosemite. Sidney Woodruff

The post Removal of Invasive Bullfrogs Leads to Increase of Native Pond Turtles in Yosemite, Study Finds appeared first on EcoWatch.

https://www.ecowatch.com/native-pond-turtles-yosemite-invasive-bullfrogs.html

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High Levels of Mercury Found in Alligators in Okefenokee Swamp, Georgia

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In a new study, scientists have detected high levels of mercury contamination in alligators from the Okefenokee Swamp in southeastern Georgia. The contamination in the alligators could be an indicator of more widespread heavy metal contamination in the region, which could be harmful to other wildlife, and ultimately humans.

“Alligators are very ancient creatures, and we can look at them in these areas as an indicator of what else might be happening in the ecosystem,” Kristen Zemaitis, lead author of the study and a graduate of the Odum School of Ecology at University of Georgia, said in a statement. “Studying them can relate to many different things in the food web.”

Scientists analyzed blood samples and dietary habits of 133 alligators from three different sites: Okefenokee Swamp, Georgia; Jekyll Island, Georgia; and Yawkey Wildlife Center, South Carolina. While the team found mercury in alligators from all three sites, the amount of mercury in alligators from the Okefenokee Swamp was up to eight times higher compared to the alligators along the coast. They published their findings in Environmental Toxicology and Chemistry.

Older alligators also had higher levels of mercury, which the researchers explained could be both because of the longer time the mercury could spend accumulating as well as an increase in the volume of prey — which are likely also contaminated with mercury — that the alligators eat as they grow.

But even young alligators were found to contain mercury, as “Mothers are passing toxins and heavy metals into the egg yolks during reproduction,” Zemaitis said.

A new study found that smaller alligators and hatchlings could inherit high levels of mercury from their mothers. Chamberlain Smith / University of Georgia

Because Okefenokee Swamp shares water with the Suwannee and St. Marys rivers, the researchers warned that mercury levels found in alligators, at the top of the food chain, likely means local fish also contain mercury.

“Mercury is a neurotoxin that is very lethal to organisms,” Jeb Byers, co-author of the study and a professor at the Odum School, said in a statement. “If it builds up, it moves through the food web and creates the perfect storm. That’s what we have in the Okefenokee.”

That could also pose a threat for people who hunt or fish in this area, especially if they are consuming their catches.

“Mercury contamination can be a high concern for the people who can be consuming a lot of fish or game species from the rivers, swamps or oceans that have high mercury,” Zemaitis explained. “In any given ecosystem, there are some organisms that can tolerate only very little amounts of mercury, which can result in neurological issues, reproductive issues and eventually death.”

Following this study, Zemaitis hopes to do a deeper investigation into the source of this mercury pollution, how it spreads throughout ecosystems and how it is affecting other wildlife.

“Now that we know this about one of the apex predators in these systems, we wonder what else is being affected?” she said.

The post High Levels of Mercury Found in Alligators in Okefenokee Swamp, Georgia appeared first on EcoWatch.

https://www.ecowatch.com/alligators-mercury-okefenokee-swamp.html

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Trump Plans to ‘Wean off of FEMA’ After Hurricane Season, Saying States Can ‘Handle It’

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President Donald Trump on Tuesday announced he is planning to eliminate the Federal Emergency Management Agency (FEMA) “as it exists today” after the 2025 hurricane season.

Trump said he wants to make disaster response and recovery the responsibility of states rather than the federal government.

We want to wean off of FEMA, and we want to bring it down to the state level,” Trump said, as CNN reported. “A governor should be able to handle it, and frankly, if they can’t handle it, the aftermath, then maybe they shouldn’t be governor.”

Trump added that less federal aid would be provided for disaster recovery, with the funding to be distributed directly by the Oval Office.

“We’re going to give out less money… It’s going to be from the president’s office,” Trump said, as reported by The Hill. “As an example, I just gave out $71 million to a certain state. They were looking to do about $120 [million] — they were very happy with the $71 million.”

For months, Trump and Homeland Security Secretary Kristi Noem have repeatedly criticized FEMA, calling the agency unnecessary and ineffective and vowing to phase it out.

WATCH: “We want to see FEMA eliminated.”

Trump & Noem say they want to end FEMA and give storm-torn states LESS money — while Trump takes personal credit for it. (Likely helping Red states more readily)

As they take credit for the job FEMA is currently doing. 🤔

[image or embed]

— The Tennessee Holler (@thetnholler.bsky.social) June 10, 2025 at 1:34 PM

“You’ve been very clear that you want to see FEMA eliminated as it exists today, so I’m preparing all of these governors [so] that they will have more control over the decisions on how they respond to their communities so that it can happen faster,” Noem told Trump on Tuesday, as The Hill reported.

Noem and Secretary of Defense Pete Hegseth are co-chairs of a newly established FEMA Review Council, which is expected to give recommendations on how to dramatically reduce the role of the agency and reform its mission and operations, reported CNN.

Noem said the administration was “building communication and mutual aid agreements among states to respond to each other so that they can stand on their own two feet with the federal government coming in in catastrophic circumstances with funding,” as The Hill reported.

Plans to shutter FEMA have confused state and federal emergency managers, who do not believe localized efforts would be able to replace the agency’s strong infrastructure. They said the budgets and personnel of most states would not be enough to tackle the most catastrophic disasters alone, even with a federal financial safety net.

FEMA Region 9 Administrator Robert Fenton, Jr. speaks at a press conference addressing wildfires and wind dangers in Los Angeles, California on Jan. 14, 2025. Katie McTiernan / Anadolu via Getty Images

“This is a complete misunderstanding of the role of the federal government in emergency management and disaster response and recovery, and it’s an abdication of that role when a state is overwhelmed,” a FEMA leader told CNN. “It is clear from the president’s remarks that their plan is to limp through hurricane season and then dismantle the agency.”

NOAA predicts this year’s hurricane season will be “above-normal” with as many as 19 named storms.

Following months of upheaval and layoffs, the 2025 hurricane started on June 1 with FEMA short-staffed and underprepared.

The agency has lost 10 percent or more of its staff since January, including much of its senior leadership. It is projected that FEMA will lose nearly 30 percent of its workforce before the end of this year, shrinking it from roughly 26,000 to about 18,000.

Noem recently reopened some FEMA training centers and continued contract extensions for employees who are deployed during disasters in a last-minute effort to shore up hurricane preparedness.

The Trump administration has discussed ending the practice of FEMA staff going door-to-door to assist people in applying for disaster aid, reported The Washington Post. It has also talked about the possibility of raising the damage threshold for communities to qualify for federal assistance.

“It has not worked out well,” Trump said on Tuesday of FEMA’s historic disaster response. “It’s extremely expensive. When you have a tornado or a hurricane or you have a problem of any kind in a state, that’s what you have governors for. They’re supposed to fix those problems.”

The post Trump Plans to ‘Wean off of FEMA’ After Hurricane Season, Saying States Can ‘Handle It’ appeared first on EcoWatch.

https://www.ecowatch.com/trump-fema-2025-hurricane-season.html

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U.S. Produced Record Amount of Energy in 2024, EIA Reports

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According to a recent analysis from the U.S. Energy Information Administration (EIA), the U.S. produced a record amount of energy last year, totaling 103 quadrillion British thermal units (BTUs).

The amount of energy produced in 2024 surpassed the previous record set in 2023 by 1%. However, while U.S. energy production is up, including for solar and wind sources, several other types of renewable energy sources stalled or even declined in 2024.

According to the analysis, natural gas accounted for most of the energy production in the U.S. in 2024, making up 38% of the energy mix. Natural gas has been the country’s largest source of produced energy since 2011, EIA reported.

The Cheniere Energy liquefied natural gas plant in Port Arthur, Texas on Feb. 10, 2025. Brandon Bell / Getty Images

This was followed by crude oil, which made up 27% of the domestically produced energy mix in the U.S. last year.

Coal reached its lowest output for a year since 1964, totaling 512 million short tons and making up 10% of total energy production in the U.S.

On the renewables front, solar, wind and biofuel energies each separately set records in 2024. Solar capacity increased 25%, while wind capacity increased 8%. Biofuels reached 1.4 million barrels per day of production, an increase of 6% compared to the previous records set for biofuels in 2023.

Other renewable energy sources did not beat records, though. As EIA reported, “Output from other energy sources that are primarily used for electric power generation either peaked decades ago (hydropower and nuclear) or fell slightly from their 2023 values (geothermal).”

Earlier in 2025, EIA predicted that solar and wind capacity would continue to grow this year, with utility-scale solar capacity expected to add 32.5 gigawatts, utility-scale wind capacity to add 7.7 gigawatts and battery storage to add 18.2 gigawatts.

However, the U.S. could face challenges to expanding renewables and reducing reliance on fossil fuels as the current administration has planned to suspend permits and leases for wind energy projects and has proposed opening up National Petroleum Reserve lands in Alaska for fossil fuel extraction.

Meanwhile, renewable energy is in high demand globally. Earlier this year, China invested more money into renewable energy sources over coal from overseas for the first time, and the country has set a record for new solar and wind installations in 2023 and again in 2024. In the EU, electricity generation from solar power surpassed electricity from coal power in 2024 for the first time.

Experts have predicted that renewables will continue to grow in the U.S. and abroad, but poor policies could cause the U.S. to fall behind in the global clean energy transition, leading to $50 billion of lost exports.

The post U.S. Produced Record Amount of Energy in 2024, EIA Reports appeared first on EcoWatch.

https://www.ecowatch.com/us-energy-production-record-2024.html

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