How do en route events around the Gulf of Mexico influence migratory landbird populations?

The condor

Frank R. Moore¹  Peter P. Marra¹  Emily B. Cohen¹  Wylie C. Barrow, Jr.²  Jeffrey J. Buler³  Jill L. Deppe⁴  Andrew Farnsworth⁵  Scott R. McWilliams⁶  David W. Mehlman⁷  R. Randy Wilson⁸  Mark S. Woodrey⁹ 

[1] 1Migratory Bird Center, Smithsonian Conservation Biology Institute, National Zoological Park, Washington, DC, USA;2U.S. Geological Survey, Wetland and Aquatic Research Center, Lafayette, Louisiana, USA;3Department of Entomology and Wildlife Ecology, University of Delaware, Newark, Delaware, USA;4Department of Biological Sciences, Eastern Illinois University, Charleston, Illinois, USA;5Information Science Program, Cornell Lab of Ornithology, Ithaca, New York, USA;6Department of Natural Resources Science, Coastal Institute in Kingston, University of Rhode Island, Kingston, Rhode Island, USA;7The Nature Conservancy, Albuquerque, New Mexico, USA;8Division of Migratory Birds, U.S. Fish and Wildlife Service, Jackson, Mississippi, USA;9Coastal Research and Extension Center, Mississippi State University, Biloxi, Mississippi, USA, and Grand Bay National Estuarine Research Reserve, Moss Point, Mississippi, USA

关键词: Gulf of Mexico;    landbird migration;    Nearctic–Neotropical bird population;    stopover habitat;    airspace habitat;    Gulf coast;    migratory connectivity;    avian monitoring;   

DOI  :  10.1650/CONDOR-17-20.1

学科分类：动物科学

来源: Central Ornithology Publication Office

【 摘 要 】

Habitats around the Gulf of Mexico (GOM) provide critical resources for Nearctic–Neotropical migratory landbirds, the majority of which travel across or around the GOM every spring and fall as they migrate between temperate breeding grounds in North America and tropical wintering grounds in the Caribbean and Central and South America. At the same time, ecosystems in the GOM are changing rapidly, with unknown consequences for migratory landbird populations, many of which are experiencing population declines. In general, the extent to which events encountered en route limit migratory bird populations is not well understood. At the same time, information from weather surveillance radar, stable isotopes, tracking, eBird, and genetic datasets is increasingly available to address many of the unanswered questions about bird populations that migrate through stopover and airspace habitats in the GOM. We review the state of the science and identify key research needs to understand the impacts of en route events around the GOM region on populations of intercontinental landbird migrants that breed in North America, including: (1) distribution, timing, and habitat associations; (2) habitat characteristics and quality; (3) migratory connectivity; and (4) threats to and current conservation status of airspace and stopover habitats. Finally, we also call for the development of unified and comprehensive long-term monitoring guidelines and international partnerships to advance our understanding of the role of habitats around the GOM in supporting migratory landbird populations moving between temperate breeding grounds and wintering grounds in Mexico, Central and South America, and the Caribbean.

【 授权许可】

CC BY