Boise, Idaho • Sage grouse have a vast network of mating grounds in the U.S. West akin to interconnected regional airport hubs that the imperiled species is using to maintain genetic diversity across its entire range, a DNA study has revealed.
The 19-page report by the U.S. Forest Service that appeared in a scientific journal in early May involved nearly 6,000 sage grouse samples collected from 2005 to 2015 and maps of some 1,200 mating sites in 10 western states and the Canadian province of Saskatchewan.
Scientists say identifying mating sites that are the most critical hubs can help land managers avoid decisions that could cut the genetic exchange sage grouse need to remain a viable species.