Posted on December 21, 2014 by Bob Berwyn
Greater sage-grouse need tall grass for nesting. Photo courtesy U.S. Fish and Wildlife Service.
Study shows livestock grazing a key factor in greater sage-grouse decline
FRISCO — A new study by sage grouse scientists confirms that the height of grass cover in nesting habitat is a key factor in determining greater sage grouse nest success.
The findings suggest that better grazing management is needed to protect the threatened birds. Cattle eat native vegetation that sage grouse require for hiding their nests from predators. Continue reading
Filed under: agriculture, biodiversity, endangered species, Environment | Tagged: biodiversity, endangered species, Great Basin, Greater sage-grouse, livestock grazing | Leave a comment »
Posted on December 20, 2014 by Bob Berwyn
Spinner dolphin. Photo courtesy NOAA.
Duke University researchers say community based conservation measures also needed
FRISCO —Hawaii’s spinner dolphins need federal regulations limiting human access to resting areas, but that alone won’t be enough to help them survive in the long run. Along with any new federal rules, resource managers will also have to work to develop local community-based conservation measures, which can be tailored to how individual bays are used, according to new research by Duke University.
Federal biologists estimate there are about 3,000 spinner dolphins around Hawaii, where hundreds of thousands of tourists pay for up-close encounters with the animals, swimming with them in shallow bays the dolphins use as safe havens for daytime rest. But as the number of tours increases, so do the pressures they place on the resting dolphins. Continue reading
Filed under: biodiversity, Environment, Marine biology | Tagged: Environment, Hawaii, marine conservation, marine mammals, oceans, Spinner dolphins | Leave a comment »
Posted on December 19, 2014 by Bob Berwyn
Should coyoyes be targeted in wildlife killing contests?
Advocacy groups seek ban in New Mexico
FRISCO — Emboldened by California’s recent ban on wildlife killing contests, wildlife advocates say they want lawmakers to enact similar restrictions in New Mexico, which holds more such events than any other state.
A coalition of 10 groups is calling on the governor and state legislature to ban contests that target coyotes, bobcats, foxes, prairie dogs and other animals, calling them immoral and biologically unsound. Continue reading
Filed under: biodiversity, Environment, wildlife | Tagged: biodiversity, coyotes, hunting, New Mexico, wildlife | 6 Comments »
Posted on December 17, 2014 by Bob Berwyn
Refuge managers seek to balance protection of marine mammals with demand for public access at Three Sisters Springs
FRISCO — The U.S. Fish and Wildlife Service says a careful management plan at a freshwater spring in Florida can help protect manatees and ensure public access to the popular Three Sisters Springs recreation area.
The agency this week started taking input on a draft environmental assessment for management actions to protect manatees and still allow public access at Three Sisters Springs during the winter season. Continue reading
Filed under: biodiversity, Environment, Marine biology, ocean conservation, public lands, wildlife | Tagged: Crystal Springs wildlife refuge, endangered species, Florida, manatees, marine mammals, Three sisters springs | Leave a comment »
Posted on December 15, 2014 by Bob Berwyn
Meadow Creek wetlands, Frisco, Colorado.
‘Death by a thousand cuts’
FRISCO — Invasive wetlands species are likely to get a boost from climate change, resulting in long-term threats to key native ecosystems, according to new research from Duke University.
“Changing surface-water temperatures, rainfall patterns and river flows will likely give Japanese knotweed, hydrilla, honeysuckle, privet and other noxious invasive species an edge over less adaptable native species,” said Neal E. Flanagan, visiting assistant professor at the Duke Wetland Center, who led the research. Continue reading
Filed under: climate and weather, Environment, global warming, invasive species, wetlands | Tagged: climate chane, Environment, global warming, invasive species, wetlands | Leave a comment »
Posted on December 12, 2014 by Bob Berwyn
Some corals are less sensitive to ocean acidification than others, according to a new study. Photo via NOAA.
Study say soft Gorgonian coral species can still calcify under elevated CO2 levels
FRISCO — Not all corals are equal when it comes to withstanding the ravages of global warming.
Some Caribbean soft corals, known as gorgonians, may be able to calcify and grow under elevated carbon dioxide concentrations. Those corals may be more resilient to the ocean acidification levels projected by the end of the 21st century than previously thought, according to a new study published in the journal Coral Reef. Continue reading
Filed under: biodiversity, climate and weather, coral reefs, Environment, global warming, ocean acidification | Tagged: climate change, coral reefs, global warming, ocean acidification, oceans | Leave a comment »
Posted on December 11, 2014 by Bob Berwyn
Can Mediterranean dolphins survive the rising tide of tourism? bberwyn photo.
Pollution, boat strikes contribute to decline of Balearic population
FRISCO — Growing tourism, fishing, pollution and general marine traffic is threatening a small population of bottlenose dolphins living in coastal waters off the Pityusic Islands in the Mediterranean Sea, according to a study led by University of Barcelona researchers.
The biologists said they were able for the first time to get an accurate population count of the dolphins during spring and summer, crucial seasons for the marine mammals. Continue reading
Filed under: biodiversity, Environment, Marine biology, ocean conservation | Tagged: Balearic Islands, bottlenose dolphins, Environment, marine mammals, ocean conservation | Leave a comment »