BBS Methodology - Description and History
is the BBS and why is it important?
Declining population trends
act as an early warning system that galvanizes research and conservation
action to determine causes for the declines before populations reach
critically low levels. For example, BBS data were instrumental in
focusing research and management action on neotropical migrants in
the late 1980s, and on grassland species in the mid-1990s. These data
have been used in more than 270 scientific papers, and are also used
by various state and provincial-based programs, such as Breeding Bird
Atlases and Natural Heritage Programs.
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Laurel, MD, USA 20708-4038
Last Modified: 3/27/2018
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