About these ads

Biodiversity: Will the rain crow sing again?

Feds map critical habitat for yellow-billed cuckoo

Yellow-billed cuckoos have nearly been extirpated from the western U.S. Photo courtesy Rocky Mountain Bird Observatory.

Yellow-billed cuckoos have nearly been extirpated from the western U.S. Photo courtesy Rocky Mountain Bird Observatory.

Will yellow-billed cuckoos make a comeback in Colorado?

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

About these ads

Global warming spells trouble for fish populations in desert rivers of the Southwest

desert rain edited

Dwindling precipitation in the Southwest spells trouble for native fish. bberwyn photo.

Study shows significant loss of fish habitat by mid-century

Staff Report

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

Wildlife: Feds punt on wolverine protection

sdfg

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

EPA to study pesticide impacts to endangered species

f

How do pesticides affect wildlife? We’ll know more after a court-ordered environmental study.

Legal settlement requires agency to analyze effects of 5 common pesticides

Staff Report

FRISCO — Under legal pressure from conservation advocates, the EPA last week agreed to take a hard look at how five commonly used pesticides affect endangered animals across the U.S.

One of the pesticides is carbaryl, commonly used in massive quantities in Colorado to try and protect trees from bark beetles. The other pesticides to be reviewed are chlorpyrifos, diazinon, malathion and methomyl. All have all been found to be toxic to wildlife and may pose a health risk to humans. Continue reading

Biodiversity: Some progress for Mexican gray wolves?

Feds propose updates to management of Southwest wolves

ko

Wolf pups recently born to a New Mexico pack. Photo by USFWS.

By Summit Voice

FRISCO — Rare and beleaguered Mexican gray wolves may get a little more room to roam in the Southwest, as the U.S. Fish and Wildlife Service proposes changes to a recovery plan from the species, including new releases of captive-bred wolves to bolster wild populations.

The new releases could happen in new areas of New Mexico and parts of Arizona where there are no wolf packs yet, and the federal agency’s proposed changes would also allow wolves to roam from the Mexican border to Interstate 40, a much broader region than currently permitted.

Only 83 Mexican wolves live in the wilds of the Southwest, including just five breeding pairs. Scientists have shown that inbreeding caused by a lack of wolf releases to the wild, coupled with too many killings and removals of wolves, is causing smaller litter sizes and lower pup-survival rates in the wild population. Expanding wolf releases to New Mexico’s Gila National Forest, in particular, would enable managers to diversify the population through new releases and diminish inbreeding. Continue reading

Biodiversity: Condor chick hatches in Zion National Park

A tagged California condor in flight.

A tagged California condor in flight. Photo via Wikipedia and the Creative Commons.

Can the endangered birds recover from the brink of extinction?

Staff Report

FRISCO — California condors have been hovering on the brink of extinction for decades. But the majestic birds may be on the verge of making a comeback in southern Utah, National Park Service biologists said last week, announcing the first-ever birth of a condor chick in Zion National Park.

Without revealing the exact location to the public, biologists had been monitoring a rock cavity in a remote corner of the park for several weeks where they observed the nesting pair. Finally, on June 25, the condor chick made its first appearance at the edge of the nest. Continue reading

Oceans: Feds finalize critical habitat designation for threatened loggerhead sea turtles

Beach nesting areas, open ocean habitat protected

o

o

ji

Room to roam for loggerheads. Photo by NOAA.

Staff Report

FRISCO — Loggerhead sea turtles  may have a better chance of surviving — and even thriving — after federal agencies designated 685 miles of beaches along the Atlantic and Gulf of Mexico coastlines, as well as 300,000 square miles of ocean, as critical habitat. The decision came after more than five years of delays and court battles, as conservation groups sought protection for the turtles.

While the ocean habitat rule provides unprecedented habitat protection for loggerhead sea turtles, it only protects nearshore habitat for one mile off nesting beaches despite science showing the importance of habitat three miles from beaches for females and hatchlings. The rule also failed to identify critical habitat for the endangered North Pacific Ocean loggerhead, which is at risk due to Hawaii and California fisheries activities in areas overlapping with the loggerhead’s habitat. Continue reading

Follow

Get every new post delivered to your Inbox.

Join 7,491 other followers