Posted on August 29, 2014 by Bob Berwyn
Devils Hole pupfish — a poster child for climate extinction? Photo courtesy USFWS.
Rare fish species in steep decline as global, regional temperatures soar
FRISCO — Rare fish living in desert freshwater springs in Nevada may be adapted to warm weather, but they may not be able to survive long-term global warming, researchers said this week, outlining the threats facing endangered Devils Hole pupfish.
At times, the population of the fish has been as low as just 35 individuals, and the geothermal water on a small shelf near the surface of an isolated cavern in the Nevada desert where the pupfish live is heating up as a result of climate change and is likely to continue heating to dangerous levels.
From the 1970s through the mid-1990s, the population appeared stable, but 1997 marked the start of a long-term decline that is probably linked with global warming, according to scientists who closely watch the fish. The population dropped to an all-time low of just 65 fish in the fall of 2013, with a further decline expected this year that will push the species toward extinction. Continue reading
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Posted on August 27, 2014 by Bob Berwyn
Widespread threats lead to “threatened” listing for 20 coral species under the Endangered Species Act. Photo courtesy NOAA.
Conservation and recovery plans will be crafted in partnership with coastal communities
FRISCO — Twenty types of coral in the Pacific and Caribbean will be listed as threatened under the Endangered Species Act, federal officials announced this week, citing declines of up to 90 percent in some species. Continue reading
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Posted on August 26, 2014 by Bob Berwyn
Can monarch butterflies be saved?
Pesticides, habitat loss and GMO crops seen as main threats
FRISCO —As monarch butterfly populations dwindle to unprecedented low levels, activists say the colorful and far-ranging insects need protection of the Endangered Species Act to survive. In a formal listing petition to the U.S. Fish and Wildlife Service, a coalition of advocacy groups say the widespread use of pesticides and genetically modified crops are the biggest threats to the butterflies. Continue reading
Filed under: biodiversity, endangered species, Environment | Tagged: biodiversity, endangered species, GMO crops, insects, milkweed, monarch butterflies, Roundup Ready | Leave a comment »
Posted on August 24, 2014 by Bob Berwyn
Proposed critical habitat designations could help protect dwindling loggerhead sea turtles in the Gulf of Mexico.
Findings may help protect dwindling population
FRISCO — The beleaguered population of loggerhead sea turtles in the northern Gulf of Mexico feeds in areas affected by the 2010 Deepwater Horizon spill and where they are threatened by other human activities.
The feeding areas for 10 turtles overlapped with an area that experienced surface oiling during the 2010 Deepwater Horizon oil spill. These sites, and others, also overlapped with areas trawled by commercial fishing operations and used for oil and gas extraction, U.S. Geological Survey scientists said after tracking 59 nesting females. That could be about 15 percent of the entire breeding females in the Northern Gulf of Mexico—a small and declining subpopulation of loggerheads that is federally classified as threatened. Continue reading
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Posted on August 20, 2014 by Bob Berwyn
Feds map critical habitat for yellow-billed cuckoo
Will yellow-billed cuckoos make a comeback in Colorado?
By Summit Voice
FRISCO — The long endangered species odyssey of the yellow-billed cuckoo may be one step closer to resolution, as federal wildlife officials this week proposed designating more than half a million acres of critical habitat for the birds, sometimes known as rain crows for their habit of singing before a storm.
The bird was once common along most rivers and streams in the West, but the decline of the species, eyed for protection since 1986, shows how much human activities have degraded riparian riverside habitat. Yellow-billed cuckoos are neotropical migrants that winter in South America and nest along rivers and streams in western North America. Continue reading
Filed under: biodiversity, Colorado, endangered species, Environment | Tagged: biodiversity, Birds, Colorado, endangered species, Environment, riparian habitat, rivers, yellow-billed cuckoo | 1 Comment »
Posted on August 19, 2014 by Bob Berwyn
Dwindling precipitation in the Southwest spells trouble for native fish. bberwyn photo.
Study shows significant loss of fish habitat by mid-century
FRISCO — Big sections of vulnerable stream habitat for native fish in the Southwest are likely to disappear by mid-century as global warming causes stream flows to dwindle.
By 2050, stream-drying events could increase by 17 percent, and the number of zero-flow days could go up by 27 percent in the Verde River Basin, affecting species like speckled dace (Rhinichthys osculus), roundtail chub (Gila robusta) and Sonora sucker (Catostomus insignis).
The drying trend will fragment aquatic habitat, hampering feeding and spawning. Some populations that are already isolated may very well disappear, said Ohio State University researcher Kristin Jaeger, an assistant professor at the School of Environment and Natural Resources. Continue reading
Filed under: biodiversity, climate and weather, Environment, global warming, rivers, water | Tagged: climate change, drought, endangered species, extreme weather, global warming, Southwest, Verde River | Leave a comment »
Posted on August 12, 2014 by Bob Berwyn
Wolverine habitat in the West.
U.S. Fish and Wildlife Service will face new lawsuit over failure to give the species endangered species status
By Bob Berwyn
FRISCO — In a decision that’s certain to trigger a new round of lawsuits, the U.S. Fish and Wildlife Service announced today that it won’t put wolverines on the Endangered Species List.
The decision was made by the agency’s regional directors from the areas where wolverines are native. In a release, the U.S. Fish and Wildlife Service director Dan Ashe contradicted all the best available science from his agency’s own biologists, claiming that there’s too much uncertainty about global warming impacts to list wolverines. Continue reading
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