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The Plight of Migrant Birds Wintering in the Caribbean: Rainfall Effects in the Annual CycleAuthor(s): Joseph Wunderle; Wayne Arendt
Source: Forests. 8(4): 115-.
Publication Series: Scientific Journal (JRNL)
Station: International Institute of Tropical Forestry
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DescriptionHere, we summarize results of migrant bird research in the Caribbean as part of a 75th Anniversary Symposium on research of the United States Department of Agriculture Forest Service, International Institute of Tropical Forestry (IITF). The fate of migratory birds has been a concern stimulating research over the past 40 years in response to population declines documented in long-term studies including those of the IITF and collaborators in Puerto Rico’s Guánica dry forest. Various studies indicate that in addition to forest loss or fragmentation, some migrant declines may be due to rainfall variation, the consequences of which may carry over from one stage of a migrant’s annual cycle to another. For example, the Guánica studies indicate that rainfall extremes on either the temperate breeding or tropical wintering grounds affect migrant abundance and survival differently depending on the species. In contrast, IITF’s collaborative studies of the migrant Kirtland’s Warbler (Setophaga kirtlandii) in the Bahamas found that late winter droughts affect its annual survival and breeding success in Michigan. We review these IITF migrant studies and relate them to other studies, which have improved our understanding of migrant ecology of relevance to conservation. Particularly important is the advent of the full annual cycle (FAC) approach. The FAC will facilitate future identification and mitigation of limiting factors contributing to migrant population declines, which for some species, may be exacerbated by global climate change.
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CitationWunderle, Jr., Joseph; Arendt, Wayne. 2017.The Plight of Migrant Birds Wintering in the Caribbean: Rainfall Effects in the Annual Cycle. Forests. 8(4): 115-. https://doi.org/10.3390/f8040115.
Keywordsannual cycle, carry over effects, climate change, Guánica, Nearctic-Neotropical
- Seasonal survival estimation for a long-distance migratory bird and the influence of winter precipitation
- Sex and age differences in site fidelity, food resource tracking, and body condition of wintering Kirtland's Warblers (Setophaga Kirtlandii) in the Bahamas
- Using a full annual cycle model to evaluate long-term population viability of the conservation-reliant Kirtland's warbler after successful recovery
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