Tag: polar bears

Feds finalize polar bear conservation plan

Outlook not good as sea ice dwindles

 Eric Regehr, U.S. Fish and Wildlife Service
Can polar bears survive global warming? Photo courtesy Eric Regehr, U.S. Fish and Wildlife Service

Staff Report

A federal recovery plan for endangered polar bears won’t halt the threat of climate change, but it could help dwindling populations of the great Arctic predators persist in the small patches of habitat that will remain after global warming melts most of the polar sea ice.

The plan, released Jan. 9, calls for reducing human-bear conflicts, collaboratively managing subsistence harvest, protecting denning habitat, and minimizing the risk of contamination from oil spills. Most of these actions are already underway, in partnership with Alaska Native communities, nonprofit groups, and industry representatives who participated in the plan’s creation. The plan also calls for increased monitoring and research. Continue reading “Feds finalize polar bear conservation plan”

Advertisements

Reaching Paris climate goals would help polar bears survive

New research suggests that capping global warming below 2 degrees Celsius would lower chances of big population decline by preserving critical sea ice

 Eric Regehr, U.S. Fish and Wildlife Service
Can these mighty Arctic predators survive the era of human-caused global warming?  Photo courtesy Eric Regehr, U.S. Fish and Wildlife Service.

Staff Report

Now that the world has a clear target for limiting global warming, scientists say they show how how achieving the goal would protect at least some ecosystems and vulnerable species from impacts.

One newly updated study found that aggressively cutting greenhouse gas emissions would help ensure the survival of polar bears, listed as threatened because of Arctic sea ice declines. Polar bears depend on the ice as platforms for feeding around the biologically rich continental shelves of the Arctic Ocean. Continue reading “Reaching Paris climate goals would help polar bears survive”

Can caribou and goose eggs help polar bears survive global warming?

 Eric Regehr, U.S. Fish and Wildlife Service
Eric Regehr, U.S. Fish and Wildlife Service

New study suggests land-based food sources may help polar bears stave off starvation as sea ice melts

Staff Report

FRISCO — Scientific discussions over the fate of polar bears in the global warming may heat up as a new study found that some of the Arctic predators may be able to survive by eating caribou and snow geese instead of eggs.

Many previous studies have suggested that polar bears will be hard-pressed to survive extreme changes in their Arctic habitat, but the new research by scientists with the American Museum of Natural History, published in the journal PLOS ONE, suggests the outlook may not be quite so grim. Continue reading “Can caribou and goose eggs help polar bears survive global warming?”

Climate: Not a lot of options for polar bears

 Eric Regehr, U.S. Fish and Wildlife Service
Polar bear photo courtesy Eric Regehr, USFWS.

New study shows food shortages will catch up to the Arctic predators

Staff Report

FRISCO — When it comes to finding food as Arctic sea ice melts, polar bears don’t exactly have a lot of options.

That’s one of the main reasons the Arctic predators are under the global warming gun, and a new study of how the bears respond metabolically during lean times underscores the existing science. Continue reading “Climate: Not a lot of options for polar bears”

Feds release draft polar bear recovery plan

Polar bears catch a bit of break, as sampling in one area shows a drop in levels of toxic PCBs. PHOTO COURTESY USGS.
Polar bears will have a hard time surviving unless there are big cuts in greenhouse gas emissions. Photo courtesy USGS.

‘Polar bear conservation requires a global commitment to curb the release of greenhouse gases into the atmosphere …’

Staff Report

FRISCO — The only thing that will save polar bears in the long run is a big cut in global greenhouse gas emissions, federal biologists said last week as the rolled out a draft recovery plan for the Arctic predators.

Polar bears were the first species to be listed as endangered because of the direct threat of global warming. As Arctic sea ice continues to shrink, bear populations will decline, according to the U.S. Fish and Wildlife Service. Continue reading “Feds release draft polar bear recovery plan”

Climate change: New polar bear prognosis not good, as feds prepare to publish recovery plan

‘Addressing sea ice loss will require global policy solutions …’

polar bear map
An updated USGS study shows how global warming will affect polar bears.

Staff Report

FRISCO — Loss of Arctic sea ice caused by increasing concentrations of greenhouse gases remains as the primary threat to polar bears, U.S. Geological Survey researchers said after updating their research models.

Even if greenhouse gas emissions drastically reduced, sea ice will continue to shrink for decades, leading to a significant loss of polar bear habitat in many parts of the Arctic. The Canadian Archipelago is a notable exception. That region may serve as a climate refuge for the bears and other ice-dependent species, the federal scientists said. Continue reading “Climate change: New polar bear prognosis not good, as feds prepare to publish recovery plan”

Study: Polar bears can’t survive on berries and bird eggs

Do polar bears hibernate? Read the latest edition of our bear blog to find out.
Can polar bears survive the Arctic meltdown? Photo courtesy USGS.

Arctic sea ice decline is bad news for apex predators

Staff Report

*Click here for more Summit Voice stories on polar bears and climate change

FRISCO — The idea that polar bears may somehow adapt to the rapid loss of Arctic sea ice by switching to land-based food sources isn’t supported by science, according to the U.S. Geological Survey.

Some polar bears are eating berries, birds and eggs as they’re forced ashore by the retreating sea ice. But the behavior isn’t widespread and probably can’t make up for the loss of the bears’ primary prey — fatty, protein-rich ice seals, according to new research led by U.S. Geological Survey scientists. Continue reading “Study: Polar bears can’t survive on berries and bird eggs”