About these ads

Mystery solved: Scientists document motion of rocks at Death Valley’s Racetrack Playa

kj

Study solves mystery of Death Valley’s moving rocks. Photo courtesy National Park Service.

Wind, water and ice are shown once again to be key geological drivers

Staff Report

FRISCO — Scientists have not only solved the mystery of the moving rocks at Death Valley’s Racetrack Playa — they documented the movement on video and even took measurements by attaching GPS units to some “non-native” rocks as part of a research project in the Southern California desert.

Some of the rocks weigh up to 100 pounds and leave behind distinct tracks as they scoot across the dry lake bed. Scientists have been studying the area for decades, but nobody has seen the process in action until now, according to a press release from the Scripps Institution of Oceanography (UC San Diego). Continue reading

About these ads

Biodiversity: Will grizzlies return to the North Cascades?

Grizzlies are roaming farther north and encroaching on Polar bear habitat, PHOTO COURTESY U.S. GEOLOGICAL SURVEY.

Will grizzlies once again roam the North Cascades? Photo courtesy U.S. Geological Survey.

National Park Service launches 3-year study on possible restoration

Staff Report

FRISCO — In a big move for grizzlies and wild ecosystems, the National Park Service this week launched a three-year environmental study to evaluate to possibility of restoring the apex predators to the North Cascades.

“This is the first stage of a multi-step process to help inform decisions about grizzly bear restoration in the North Cascades ecosystem,” said National Park Service Director Jonathan B. Jarvis. “The National Park Service and our partners in this effort haven’t made any decisions about the bear’s restoration at this time as federal law requires us to look at a range of options, including not restoring grizzlies to the area.” Continue reading

Morning photo: RMNP!

A little taste of high country heaven

fdhf

Trail Ridge Road view.

FRISCO — Dylan and I had a chance to visit Rocky Mountain National Park as part of the crowdfunded Climate Ranger project, meeting with a team of scientists who are monitoring conditions in the park’s alpine tundra as part of the Colorado Natural Heritage Program. The monitoring is part of a global program aimed at trying to track climate-induced changes with long-term data, because we won’t know what climate change is doing unless we study it closely. We’ll do more reporting on this topic in the next few days, but for now, a few pics from the Park. Click on the panos to see the full-size versions. Continue reading

Morning Photo: San Juan wildflowers

The alpine tundra comes alive!

Colorado wildflowers

Wildflowers flourishing in the alpine tundra near Red Mountain Pass.

FRISCO — A short midweek roadtrip to the San Juans as part of the Rocky Mountain Climate Ranger reporting project yielded some fine images from Colorado’s rugged southwestern mountains — along with in-depth information about how global warming is affecting the Rocky Mountains. Shooting with three different cameras (the top image is an iPhone shot) may seem like a hassle (and it can be at times), but it enabled me to get a good variety of perspectives. The next couple of images were taken with an older Canon and a zoom lens that helped compress the vast fields of flowers, intensifying the color and adding some interesting depth-of-field effects. Continue reading

Travel: Scouting Colorado’s San Juans

Adventurer Kim Fenske is back on the road, exploring the San Juans

Grand Mesa Colorado sunset

Sunset from Grand Mesa.

Story and photos by Kim Fenske

Among the rugged southwestern mountains of Colorado lie three Fourteeners: El Diente, 14,159 feet; Mount Wilson, 14,246 feet; and Wilson Peak, 14,017 feet. Since I had never visited this section of Colorado, I prepared a trip into the area with a plan to hike to Navajo Lake at the base of these three magnificent peaks. The three peaks are situated near Telluride in the Lizard Head Wilderness Area of the San Juan Mountains.

The drive from Copper Mountain is about three hundred miles, so I decided to break up the trip by heading west toward Grand Junction, then turning south to camp on the Grand Mesa.  Several campgrounds lie among the small lakes trapped in the highlands of Grand Mesa National Forest on State Highway 65 north of Delta. Continue reading

Study maps potential for climate-change disruption in National Parks

Some park lands seen as potential safe harbors from global warming

The southeastern and south-central U.S. are particularly vulnerable to ecosystem shifts driven by global warming. Map courtesy National Park Service.

The southeastern and south-central U.S. are particularly vulnerable to ecosystem shifts driven by global warming. Map courtesy National Park Service.

Staff Report

FRISCO — Scientists zooming in on the potential impacts of global warming found that up to 25 percent of the lands managed by the National Park Service in the U.S. are vulnerable to vegetation shifting up slope and northward. The findings, published in the journal Global Change Biology, show that habitat loss from the development of roads and other urbanization, agriculture and deforestation makes ecosystems more vulnerable to climate change.

“We already established that climate change and habitat loss affect national parks, but this scientific study links these negative effects and identifies just how much of the landscape is at risk,” National Park Service Director Jonathan B. Jarvis said. “The good news is that the study also identified areas of biodiversity that are refuges and wellsprings for species.” Continue reading

Wildlife: Denali wolf packs hammered by hunting

sdfg

Wolves draw tourists to Denali National Park.

Death of breeding wolves affects pack size and persistence

Staff Report

FRISCO — Following a steep drop in the Denali National Park wolf population, biologists have documented how the death of breeding wolves affects pack size and persistence. The number of wolves in the 6million acre park in Alaska dropped from 143 in the fall of 2007 to just 55 wolves in the spring of 2013, raising concerns about impacts to tourism.

Many visitors come to Denali with the expectation of seeing wolves, but a recent state decision to allow wolf hunting in area previously deemed a buffer zone has had a big impact on wolf numbers. According to the latest research, the death of a breeding wolf sometimes results in a wolfpack disbanding. Continue reading

Follow

Get every new post delivered to your Inbox.

Join 7,399 other followers