As regular CFZ-watchers will know, for some time Corinna has been doing a column for Animals & Men and a regular segment on On The Track... particularly about out-of-place birds and rare vagrants. There seem to be more and more bird stories from all over the world hitting the news these days so, to make room for them all - and to give them all equal and worthy coverage - she has set up this new blog to cover all things feathery and Fortean.

Friday 5 April 2013

Winners And Losers: Study Looks At Alaskan Birds’ Vulnerability To Climate Change

April 3, 2013 

Brett Smith for redOrbit.com – Your Universe Online 

As the forces of climate change continue to shape the planet, conservationist groups are focusing on how these trends may affect the viability of different animal species. 

According to a new report from the Wildlife Conservation Society (WCS), many of the breeding bird species in Alaska will experience a marked change to their populations by 2050. 

Based on their assessment, the WCS estimates that two species will become “highly” vulnerable and seven other species would be “moderately” vulnerable thanks to the effects of climate change. The WCS also projects that the populations of five bird species will actually expand as a result of rising global temperatures and their effects. 

“The primary value of this assessment is to tease out the underlying factors that make species more or less vulnerable to climate change,” said report co-author Joe Liebezeit. “Through this effort we can begin to prioritize subsequent management actions and identify data gaps. The results represent a starting point to help prioritize management actions and conservation planning efforts.” 

The report is focused on 54 bird species from Arctic Alaska, which serves as a breeding ground for millions of birds from around the world. According to the WCS, the region is expected to see a 5.5-degree Fahrenheit temperature increase by 2050. 

The WCS conducted their assessment with four goals in mind: rank the vulnerability of different bird species, evaluate each species’ sensitivity to climate change factors, compare the assessment to other approaches, and determine the effectiveness of the NatureServe Climate Change Vulnerability Index (CCVI) tool. 

The CCVI tool is a spreadsheet-based algorithm that uses a variety of factors to rank species vulnerability to climate change in particular regions. 

“This assessment tool melds computer modeling with expert opinion in a way not often realized,” said co-author Greg Balogh, the Coordinator of the Arctic Landscape Conservation Cooperative for the WCS. 

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