For several decades, scientists studying the population dynamics of migratory birds have debated the relative importance of events in summer breeding areas versus tropical wintering grounds. Now, in a Dartmouth study reported in the Dec. 4 issue of the journal Science, Peter Marra and colleagues provide evidence that what happens in the tropical forests where migrant warblers spend their winters and what happens in the Northern woods where they spend the next summer are inextricably linked.
The above story is based on materials provided by Dartmouth College. Note: Materials may be edited for content and length.
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