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Abstract
Neotropical migrant bird populations were sampled at 76 sites in seven countries by using mist nets and point counts during a six-winter study. Populations in major agricultural habitats were compared with those in extensive forest and isolated forest fragments. Certain Neotropical migrants, such as the Northern Parula, American Redstart, and the Black-throated Blue, Magnolia, Black-and-white, and Hooded warblers, were present in arboreal agricultural habitats such as pine, cacao, citrus, and shade coffee plantations in relatively large numbers. Many north temperate zone shrub-nesting species, such as the Gray Catbird, White-eyed Vireo, Tennessee Warbler, Common Yellowthroat, and Indigo Bunting, also used agricultural habitats in winter, as did resident hummingbirds and migrant orioles. Ground-foraging migrants, such as thrushes and Kentucky Warblers, were rarely found in the agricultural habitats sampled. Although many Neotropical migrants use some croplands, this use might be severely limited by overgrazing by cattle, by intensive management (such as removal of ground cover in an orchard), or by heavy use of insecticides, herbicides, or fungicides.
Suggested Citation
Robbins, C., Dowell, B., Dawson, D., Colon, J., Estrada, R., Sutton, A., Sutton, R., Weyer, D., 1992, Comparison of neotropical migrant landbird populations wintering in tropical forest, isolated forest fragments, and agricultural habitats, chap. of Ecology and Conservation of Neotropical Migrant Landbirds, p. 207-220.
| Publication type | Book chapter |
|---|---|
| Publication Subtype | Book Chapter |
| Title | Comparison of neotropical migrant landbird populations wintering in tropical forest, isolated forest fragments, and agricultural habitats |
| Year Published | 1992 |
| Language | English |
| Publisher | Smithsonian Institution Press |
| Publisher location | Washington, D.C. |
| Contributing office(s) | Patuxent Wildlife Research Center |
| Description | xiii, 609 |
| Larger Work Type | Book |
| Larger Work Subtype | Other Government Series |
| Larger Work Title | Ecology and Conservation of Neotropical Migrant Landbirds |
| First page | 207 |
| Last page | 220 |