Chapter

Bird Productivity and Nest Predation in Agricultural Grasslands

Christine A. Ribic, Michael J. Guzy, Travis J. Anderson, David W. Sample and Jamie L. Nack

in Video Surveillance of Nesting Birds

Published by University of California Press

Published in print June 2012 | ISBN: 9780520273139
Published online January 2013 | e-ISBN: 9780520954090 | DOI: http://dx.doi.org/10.1525/california/9780520273139.003.0010
Bird Productivity and Nest Predation in Agricultural Grasslands

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Effective conservation strategies for grassland birds require understanding of nesting success in differenthabitats. Nesting activity of grassland birds, nest-predator identity (using nest video surveillance) and activity (using track stations) were measured in remnant prairie, Conservation Reserve Program (CRP) fields, and pastures.Bobolinks and Henslow’s sparrowsnested primarily in CRP fields, and grasshopper sparrowsin remnant prairies. Grasshopper sparrow nest survival was higher near woody edges. Nest predators varied among habitats; thirteen-lined ground squirrels were important in CRP fields while raccoons were important in pastures. In CRP fields, raccoon activity was greater along edges than interiors; for ground squirrels, this relationship was reversed. The varying nest predators will need to be considered when developing conservation strategies for grassland birds.

Keywords: camera; Conservation Reserve Program; CRP; edge; grassland birds; nest predators; nesting success; pastures; remnant prairie; thirteen-lined ground squirrel

Chapter.  10160 words.  Illustrated.

Subjects: Zoology and Animal Sciences

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