Fast-Moving Fires Killed Nearly Half of These Endangered Washington Rabbits
The fast-moving Pearl Hill and Cold Springs fires scorched a habitat for Columbia Basin pygmy rabbits on Sept. 7, wiping out around half of the species' recovering population, High Country News reported Monday.
"The sun was blotted out, it was just red from the fire glare and the smoke and all you saw was rocks and sand and dust, there was just nothing," Washington Department of Fish and Wildlife (WDFW) Biologist Jon Gallie told The Wenatchee World after the fire. "I have not seen a sagebrush fire that hot in my 13 years out here."
Gallie leads a recovery program for North America's smallest rabbits, which are about the size of a grapefruit, according to High Country News. Their population was devastated during the 20th century by development, agriculture and wildfires and, in 2001, the last 16 were gathered from the wild for a captive breeding program. Scientists bred the Washington rabbits with pygmy rabbits from the Great Basin of the intermountain West and began to reintroduce them to the wild in 2011, according to The Wenatchee World.
To defend against wildfires, the rabbits were released in three different locations: Jameson Lake, Beezley Hills and Sagebrush Flats. It was the Jameson Lake population that was lost to September's flames.
A pygmy rabbit rescued from a breeding site in Beezley Hills, Washington eats owl clover in its new enclosure. Kourtney Stonehouse, WDFW
"We have pygmy rabbits well distributed on the landscape in two other areas, so not all is lost," Gallie told High Country News. "We will just have to chart a now more challenging path to recovery."
"It's devastating," Anderson said. "A catastrophic loss and a significant loss in recovery."
The rabbits aren't the only endangered species that were harmed by the fires. The Pearl Fire may also have reduced the state's sage grouse population by 30 to 70 percent, according to The Seattle Times.
The fires also damaged the sagebrush ecosystem these and other species depend upon. This unique, biodiverse shrub-steppe environment once covered 10.4 million acres of Washington state, but has declined by 80 percent since the mid-19th century. The fires wiped out thousands more acres within days.
While sagebrush ecosystems are used to fires, invasive species of weeds have taken root that dry out early and encourage hotter, larger fires. It takes sagebrush steppe 10 to 20 years to recover from such blazes.
"Truly, now preserving what we have left is going to be the challenge," WDFW habitat program director Margen Carlson told The Seattle Times.The climate crisis is also fueling larger, more extreme fires in Washington and around the world.
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EcoWatch Daily Newsletter
By Rebecca Niemiec and Kevin Crooks
Colorado voters will decide on Nov. 3 whether the state should reintroduce gray wolves (Canis lupus) after a nearly 80-year absence. Ballot Proposition 114 would require the state to develop and oversee a science-based plan to restore wolves, focused in Western Colorado and initiated by the end of 2023.
Back by Popular Demand?<img lazy-loadable="true" src="https://assets.rebelmouse.io/eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJpbWFnZSI6Imh0dHBzOi8vYXNzZXRzLnJibC5tcy8yNDUzOTQxNy9vcmlnaW4uanBnIiwiZXhwaXJlc19hdCI6MTYwNzI4NTkyMX0.BeRR61CH6a-TWwSw1p4kmng4x4tXRaSMKyTRHKIHmOw/img.jpg?width=980" id="1f7fe" class="rm-shortcode" data-rm-shortcode-id="339e3443dc63f3be06e24a82f0b37a03" data-rm-shortcode-name="rebelmouse-image" />
<span style="display:block;position:relative;padding-top:56.25%;" class="rm-shortcode" data-rm-shortcode-id="9aec767b3325e364a8605524504f95ab"><iframe lazy-loadable="true" src="https://www.youtube.com/embed/wTx_jqpqqfU?rel=0" width="100%" height="auto" frameborder="0" scrolling="no" style="position:absolute;top:0;left:0;width:100%;height:100%;"></iframe></span>
Clashing Values<p>Proposition 114 has strong support in Colorado. <a href="https://extension.colostate.edu/topic-areas/people-predators/public-perspectives-on-wolves-and-wolf-reintroduction-8-004/" target="_blank">Statewide surveys </a> conducted by phone, by mail and online over the past two decades have found that 66% to 84% of respondents supported reintroducing wolves. This support is consistent across different regions of the state and diverse demographic groups.</p><p>In a <a href="https://doi.org/10.7717/peerj.9074" target="_blank">survey of Colorado residents</a> that we conducted in 2019, the prospect that wolves could contribute to a balanced ecosystem was the most commonly cited reason for supporting reintroduction. Other arguments included people's cultural and emotional connections to wolves, and <a href="https://extension.colostate.edu/topic-areas/people-predators/moral-arguments-related-to-wolf-restoration-and-management-8-011/" target="_blank" rel="noopener noreferrer">moral arguments</a> that restoring a species humans had eradicated was the right thing to do.</p><p>While overall public support is strong, over half of Colorado's 64 counties have passed <a href="https://www.drovers.com/article/wolf-reintroduction-ballot-colorado" target="_blank" rel="noopener noreferrer">resolutions against restoring wolves</a>. Many ranching and hunting associations are actively campaigning against the ballot measure.</p><p>In our 2019 study, we found that media coverage in the state focused more strongly on <a href="https://doi.org/10.7717/peerj.9074" target="_blank" rel="noopener noreferrer">perceived negative impacts</a> associated with wolf reintroduction than on beneficial effects. Surveys show that resident concerns include threats to <a href="https://extension.colostate.edu/topic-areas/people-predators/wolves-and-human-safety-8-003/" target="_blank" rel="noopener noreferrer">human safety and pets</a>; <a href="https://extension.colostate.edu/topic-areas/people-predators/wolves-and-livestock-8-010/" target="_blank" rel="noopener noreferrer">wolf attacks on livestock</a>; and the potential for wolves to <a href="https://extension.colostate.edu/topic-areas/people-predators/wolves-big-game-and-hunting-8-001/" target="_blank" rel="noopener noreferrer">reduce deer and elk populations</a>, threatening hunting opportunities.</p>
Who Decides?<p>This measure is the first giving voters in the U.S. an opportunity to weigh in on bringing back a native species. Addressing the issue through a ballot measure adds a unique twist to public and media discussions about wolves.</p><p>Supporters call it a democratic way to ensure that the <a href="https://www.cpr.org/2020/09/29/should-wolves-be-brought-back-to-colorado-a-rancher-and-a-biologist-have-their-say/" target="_blank">public's values are recognized</a>. They also argue that voters are deciding only whether wolves should be reintroduced, while allowing experts at the <a href="https://cpw.state.co.us/" target="_blank" rel="noopener noreferrer">state wildlife agency</a> to create a reintroduction plan <a href="https://www.steamboatpilot.com/news/election/howl-you-vote-wolf-advocates-opponents-ask-colorado/" target="_blank" rel="noopener noreferrer">based on the best available science</a>.</p>
<div id="4c11f" class="rm-shortcode" data-rm-shortcode-id="dec8674441e02372e50b796d848e4130"><blockquote class="twitter-tweet twitter-custom-tweet" data-twitter-tweet-id="1316474105315483649" data-partner="rebelmouse"><div style="margin:1em 0">According to a recent poll of 900 demographically representative likely voters, two-thirds supported “restoring wol… https://t.co/74LMG1PYtW</div> — High Country News (@High Country News)<a href="https://twitter.com/highcountrynews/statuses/1316474105315483649">1602706860.0</a></blockquote></div>
Finding Consensus<p>Studies suggest that ballot initiatives like 114 will <a href="https://doi.org/10.1016/j.biocon.2017.07.032" target="_blank">become more common</a> as public values toward wildlife change and more diverse groups seek to influence wildlife management. For us, the key question is how to recognize and incorporate these differing values as agencies make decisions.</p><p>Research drawing on insights from <a href="https://extension.colostate.edu/topic-areas/people-predators/dialogue-and-social-conflict-about-wolves-8-009/" target="_blank">psychology, political science and sociology</a> suggests that it is critical to run<a href="https://drive.google.com/file/d/1QppmBszEF6zsNnhBJ7Q2-pSWRR-Zx_ln/view" target="_blank" rel="noopener noreferrer"> truly participatory processes</a> that engage government agencies and people who have a stake in the issue in shared decision-making. Fostering dialogue between groups that value wildlife differently can build empathy and mutual understanding and <a href="https://doi.org/10.1016/j.biocon.2014.07.015" target="_blank" rel="noopener noreferrer">foster compromise</a>. Broadening the conversation in this way is essential for coexisting with carnivores with minimal impacts on predators and people.</p>
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By Brian Bienkowski
Fish exposed to endocrine-disrupting compounds pass on health problems to future generations, including deformities, reduced survival, and reproductive problems, according to a new study.
Low Levels Lead to Generational Impacts<p>Researchers exposed inland silverside fish to bifenthrin, levonorgestrel, ethinylestradiol, and trenbolone to levels currently found in waterways.</p><p>"Our concentrations were actually on the low end" of what is found in the wild, DeCourten said, adding that it was low amounts of chemicals in parts per trillion.</p><p>Bifenthrin is a pesticide; levonorgestrel and ethinylestradiol are synthetic hormones used in birth controls; and trenbolone is a synthetic steroid often given to cattle to bulk them up.</p><p>Such endocrine-disruptors have already been linked to a variety of health problems in directly exposed fish including altered growth, reduced survival, lowered egg production, skewed sex ratios, and negative impacts to immune systems. But what remains less clear is how the exposure may impact future generations.</p><p>For their study, DeCourten and colleagues started the exposure when the fish were embryos and continued it for 21 days.</p><p>They then tracked effects on the exposed fish, and the next two generations.</p>
Inherited Problems<p>DeCourten said the altered DNA methylation is one of the plausible ways that future generations would experience health impacts from previous generations' exposure. Hormone-disrupting compounds have been shown to impact DNA methylation, which is an important marker of how an organism will develop.</p><p>"Methyl groups are added to specific sites on the genome, [the exposure] is not changing the genome itself, but rather how the genome is expressed," she said. "And that can be inherited throughout generations."</p><p>In addition, Brander said there are essentially different "tags" that exist on DNA molecules, which tell genes how to turn on and off. She said the exposure to different compounds may be "influencing which methyl tags get taken on or off as you proceed through generations."</p><p>The researchers said the study should prompt future toxics testing to consider impacts on future generations.</p><p>"The results … throw a wrench in the current approach to regulating chemicals, where it's often short-term testing looking at simple things like growth, survival, and maybe gene expression," Brander said.</p><p>"These findings are telling us we really at least need to consider" the next two generations, she added.</p>
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