Much of the research on birds and climate change is based on Christmas Bird
Count (CBC), Breeding Bird Survey (BBS), and eBird data.
eBird will soon be adding a fascinating feature on their Abundance Map
pages, called a Trend Map-- you can see the link to them already for each
species, but they are grayed out. We learned about this at the Wash Orn.
Society on-line conference last year. Each species will have a summer and
winter map consisting of thousands of blue dots (where they are increasing)
and red dots (where they are decreasing). In a sense, each map will be like
thousands of research papers for a specific site for a specific species.
They will provide a picture of how climate, habitat, and other changes are
impacting each species. Since eBird use increases dramatically each year,
you can imagine there's a lot of statistical work that goes into teasing
out the true trend from the data. I won't go into that here, but it's
pretty cool. They are not dropping these maps online until a peer-reviewed
paper on the methodology is published.
On Sun, May 22, 2022 at 9:40 PM Dan Reiff <
dan.owl.reiff at gmail.com> wrote:
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https://www.sciencedaily.com/releases/2022/05/220519132738.htm
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Sent from my iPhone
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--
Steve Hampton
Port Townsend, WA (qatáy)