American Institute of Biological Sciences

Alaskan caribou and ptarmigan migrations recorded

In the February issue of BioScience, biologists describe the first-of-a-kind recording of caribou and ptarmigan migrations made with 14 automated cameras positioned in the northern foothills of the Brooks Range, Alaska. By ana ...

Jan 15, 2014 not rated yet 0

North American freshwater fishes race to extinction

North American freshwater fishes are going extinct at an alarming rate compared with other species, according to an article in the September issue of BioScience. The rate of extinctions increased noticeably after 1950, althou ...

Aug 10, 2012 5 / 5 (1) 0

Researchers map fish species at risk from dams

Dams are believed to be one of the biggest threats to freshwater organisms worldwide: They disrupt normal patterns of water and sediment flow, impede migration, and alter the character of spawning and feeding grounds. A shortage ...

May 10, 2012 not rated yet 0