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Biodiversity: Some progress for Mexican gray wolves?

Feds propose updates to management of Southwest wolves

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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

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Oceans: Pacific bluefin tuna on the brink as feds seek input on new fishing regulations

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Even the imminent decimation of tuna populations hasn’t stopped sport fishermen from harvesting the desirable fish in the Gulf of Mexico and elsewhere. bberwyn photo.

Not enough adults left to replenish populations

Staff Report

FRISCO — Pacific bluefin tuna won’t last long at any sustainable level without immediate and drastic intervention by fisheries managers, according to ocean advocates who are urging the federal government to adopt strict limits on bluefin tuna catch.

Overall, many tuna populations are on the brink of collapse. Five of eight tuna species have been assigned threatened or near-threatened status on the international Red List maintained by the International Union for the Conservation of Nature.

In the Gulf of Mexico, for example, the Deepwater Horizon oil disaster spewed millions of gallons of oil into the species’ prime breeding grounds, and a 2010 report by the International Consortium of Investigative Journalists showed how illegal fishing and inadequate enforcement are decimating tuna stocks all over the world. Continue reading

Morning photo: Sunday set

Stomping grounds

Colorado wildflowers

Penstemon, two-foot tall, along the shore of Dillon Reservoir near Frisco, Colorado.

FRISCO — Yes, it’s fun to visit foreign locales, sample exotic food and take photos of new and different subjects. But you don’t always have to venture far to get a good shot. All the images in this set were taking in places where we walk our dogs on a daily basis, in some cases, right in our neighborhood, or more accurately where our neighborhood edges against the open space at the edge of Dillon Reservoir. Sometimes it’s just a matter of finding a new perspective in a familiar place. Check out my Instagram feed for daily updates and visit my online Fine Art America gallery to buy fine art prints and greeting cards. Continue reading

Environment: Ongoing cleanup tackles toxic Peru Creek

July 30 site visit gives public a chance to see progress in $3 million remediation project at abandoned mine in Summit County

November snow and ice along the Snake River, in Summit County, Colorado.

Heavy metal pollution from upstream sources has killed most aquatic life in the Snake River, near Keystone, Colorado. bberwyn photo.

Staff Report

FRISCO — With recent increases in levels of toxic metals in Peru Creek, the ongoing remediation work at the abandoned Pennsylvania Mine, near Keystone, Colo., takes on an even greater importance in the context of water quality in the Blue River Basin and the Upper Colorado.

The mine, which produced huge amounts of silver 100 years ago, has been pinpointed as one of the main sources of acid mine drainage. Water seeping through the rocky ground trickles into the old mine workings, picks up contaminants along the way, then percolates back into Peru Creek near the head of the beautiful alpine valley.

During the last couple of summers, scientists and engineers have been working to reduce the pollution, and this coming week (July 30) there will be a public field trip to the site, led by Jeff Graves of the Colorado Division of Reclamation Mining and Safety, as well as other members of the Snake River Task Force. Continue reading

Environment: USGS study shows neonicotinoid pesticide pollution common in Midwest streams

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Bee-killing neonicotinoid pesticides widespread in Midwest streams, USGS study finds. bberwyn photo.

Concentrations in some streams are high enough to kill aquatic organisms

By Summit Voice

FRISCO — Scientists with the U.S. Geological Survey studying streams in the Midwest have found levels of neonicotinoid insecticides at up to 20 times the concentrations deemed toxic to aquatic organisms. The systemic pesticides have raised concerns because they’ve been linked with honey bee declines.

Traces of the chemicals were widespread in streams throughout the region — not surprising in the heart of the country’s agricultural belt. In all, nine rivers and streams, including the Mississippi and Missouri Rivers, were included in the study. The rivers studied drain most of Iowa, and parts of Minnesota, Montana, Nebraska, North Dakota, South Dakota, and Wisconsin. These states have the highest use of neonicotinoid insecticides in the Nation, and the chemicals were found in all nine rivers and streams. Continue reading

Op-Ed: Happy Birthday, Colorado River – long may you live!

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No room for mistakes in the Colorado River Basin.

Conservation has to be the centerpiece of local, state and regional water planning efforts

By Bob Berwyn

FRISCO — When Congress 93 years ago formally renamed the Grand River as the Colorado, it probably didn’t have any inkling about what the mightiest river in the West would be subjected too early in the 21st century.

Now far removed from that era of hopeful development, the river is over-exploited from beginning to end. Headwater streams are diverted to water acres of bluegrass lawns in Denver, and mountain resorts mindlessly draw down tributaries for snowmaking during the low-flow season, just when trout most need the water.

Just this week, scientists said they’ve documented an astounding rate of water loss in the basin from groundwater pumping alone, which may turn out to be a worse problem than we think, groundwater development is state-regulated, therefore not as closely tracked as the diversions and storage related to major reservoir operations.

And all the pressures have intensified in recent years: More population growth, more development, more demand for food and irrigation, a 14-year dry spell across the West and a warming climate. Even without manmade global warming, ancient trees tell us that the region has seen longer and more intense droughts in the past few thousand years.

The Colorado is tapped out. Continue reading

Morning photo: Got sky?

Twilight scenes

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A moment of brilliance … This is an unedited iPhone shot.

FRISCO — A grab-and-go set, with a few images from recent dusk scenes around Summit County. With monsoonal moisture helping to fuel cloud build-up each day, we’ve enjoyed some amazing evening light in the high country. And for a while, smoke from wildfires in the Pacific Northwest mingled with the evening clouds, adding color, but taking away some of the sharpness of the light.

Continue reading

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