kristin laidre – Shamskm: A site to exchange knowledge and solutions

Scientists review the ecological effects of sea ice loss

By Guest PostAugust 15, 2013Environmentarctic fox, arctic ocean, biological productivity, caribou, cecilia bitz, donald walker, ecological effects, eric post, ice microbes, jedediah brodie, jeffrey kerby, kristin laidre, microorganisms, mountainous tundra, pennsylvania state university, polar bears, ringed seals, sea ice decline, sea ice loss, tundra, uma bhatt, university of alaska, university of washington, west greenland

The Arctic Ocean has more open water each summer, a trend most scientists predict will continue in coming years. September 2012 set the record for the most open water since satellite observations began.

A University of Washington researcher is co-author on a review paper published (Aug. 2) in the journal Science looking at the ecological consequences of sea ice decline.

Led by corresponding author Eric Post, a biologist at Pennsylvania State University, the international team looked at effects on animals ranging from microorganisms to polar bears. As well as obvious changes for organisms that live in or on the ice, there also are trickle-down effects for food webs, animal behavior, species ranges, interbreeding and disease dynamics. (more…)

Whales Help Researchers Take Winter Temperature of Greenland’s Coastal Waters

WASHINGTON — Scientists using sensors attached to a type of Arctic whale known for its unicorn-horn-like tooth have detected continued warming of the southern Baffin Bay off West Greenland. The temperatures of the waters have continued to rise since wintertime ocean temperatures were last effectively measured there in the early 2000s, the researchers reported October 23 in the Journal of Geophysical Research – Oceans, a publication of the American Geological Union (AGU).

Temperatures in the study were collected by narwhals, a medium-sized whale species, during missions in 2006 and 2007. The animals were tagged with sensors that recorded ocean depths and temperatures during feeding dives from the surface pack ice to the seafloor, as deep as 1,773 meters, or more than a mile. (more…)

Tag Archives: kristin laidre

Scientists review the ecological effects of sea ice loss

Whales Help Researchers Take Winter Temperature of Greenland’s Coastal Waters