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Responses Of Nesting Bobolinks (Dolichonyx Oryzivorus) To Habitat Edges, Eric K. Bollinger, Thomas A. Gavin
Responses Of Nesting Bobolinks (Dolichonyx Oryzivorus) To Habitat Edges, Eric K. Bollinger, Thomas A. Gavin
Faculty Research & Creative Activity
T.-Avoidance of habitat edges may be contributing to reduced densities of grass- land birds in small habitat patches. Nest densities for grassland-nesting Bobolinks (Dolichonyx oryzivorus) were much lower than expected within 25 m of forest edges at three sites in New York, and that pattern ("edge avoidance") extended to 100 m at one site. Nests located within 50 m of forest or wooded hedgerow edges had lower daily survival rates, compared with nests >100 m from any habitat edge. Bobolinks tended to move away from forest edges when renest- ing after nest failure; that pattern was especially evident in females …
Responses Of Nesting Bobolinks (Dolichonyx Oryzivorus) To Habitat Edges, Eric Bollinger, Thomas Gavin
Responses Of Nesting Bobolinks (Dolichonyx Oryzivorus) To Habitat Edges, Eric Bollinger, Thomas Gavin
Faculty Research & Creative Activity
T.-Avoidance of habitat edges may be contributing to reduced densities of grass- land birds in small habitat patches. Nest densities for grassland-nesting Bobolinks (Dolichonyx oryzivorus) were much lower than expected within 25 m of forest edges at three sites in New York, and that pattern ("edge avoidance") extended to 100 m at one site. Nests located within 50 m of forest or wooded hedgerow edges had lower daily survival rates, compared with nests >100 m from any habitat edge. Bobolinks tended to move away from forest edges when renest- ing after nest failure; that pattern was especially evident in females …