作者: Marie-Anne R. Hudson , Charles M. Francis , Kate J. Campbell , Constance M. Downes , Adam C. Smith
关键词: Species at Risk Act 、 Conservation planning 、 Population 、 Ecology 、 Endangered species 、 Citizen science 、 Bird conservation 、 Breeding bird survey 、 Biology 、 Abundance (ecology)
摘要: ABSTRACT The North American Breeding Bird Survey (BBS) was established in 1966 response to a lack of quantitative data on changes the populations many bird species at continental scale, especially songbirds. BBS now provides most reliable regional and trends annual indices abundance available for >500 species. This paper reviews some ways which have contributed conservation America over past 50 yr, highlights future program enhancement opportunities. listing under Canadian Species Risk Act and, few cases, informed assessments U.S. Endangered Act. By raising awareness population changes, has helped motivate efforts through creation Partners Flight. been used determine priority locations action national scales Conservatio...