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Our knowledge of avian behaviors during the non-breeding period still lags behind that of the breeding season, but the last decade has witnessed a proliferation in research that has yielded significant progress in understanding migration patterns of North American birds. And, although the great majority of migration research has historically been conducted in the eastern half of the continent, there has been much recent progress on aspects of avian migration in the West. In particular, expanded use of techniques such as radar, plasma metabolites, mist-netting, count surveys, stable isotopes, genetic data, and animal tracking, coupled with an increase in multi-investigator collaborations, have all contributed to...
Categories: Publication;
Types: Citation;
Tags: Bird Migration,
Birds,
National CASC,
Water, Coasts and Ice,
Wetlands,
Abstract (from http://link.springer.com/article/10.1007%2Fs10584-009-9644-9): Recent changes in global climate have dramatically altered worldwide temperatures and the corresponding timing of seasonal climate conditions. Recognizing the degree to which species respond to changing climates is therefore an area of increasing conservation concern as species that are unable to respond face increased risk of extinction. Here we examine spatial and temporal heterogeneity in the rate of climate change across western North America and discuss the potential for conditions to arise that may limit the ability of western migratory birds to adapt to changing climates. Based on 52 years of climate data, we show that changes in...
Categories: Publication;
Types: Citation;
Tags: Birds,
National CASC,
Water, Coasts and Ice,
Wetlands,
Wildlife and Plants,
USGS News Release 4/7/2014: " Dramatic distribution losses and a few major distribution gains are forecasted for southwestern bird and reptile species as the climate changes, according to just-published research by scientists with the U.S. Geological Survey, the University of New Mexico, and Northern Arizona University. Overall, the study forecasted species distribution losses – that is, where species are able to live – of nearly half for all but one of the 5 reptile species they examined, including for the iconic chuckwalla. The threatened Sonoran (Morafka’s) desert tortoise, however, is projected to experience little to no habitat losses from climate change...."
Categories: Publication;
Types: Citation;
Tags: Birds,
National CASC,
Other Wildlife,
Southwestern Birds,
Southwestern Reptiles,
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