Chapter

Conservation Implications When the Nest Predators Are Known

Frank R. Thompson III and Christine A. Ribic

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/9780520273139.003.0002
Conservation Implications When the Nest Predators Are Known

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We identified latitudinal and habitat-related patterns in predator groups that depredate passerine nests. Mammals were the dominant predator group in northern grasslands. Snakes were the dominant predator group in southern habitats. Fire ants were only a nest predator in southern latitudes. These differences in predatorspecies were likely due to both geographic distribution patterns and habitat preferences. We reviewed three examples—cowbirds, snakes in shrublands, and ground squirrels in grasslands—to illustrate how predator-control strategies can differ among systems. Mitigation of passerine-nest predation will need to be based on knowledge of predator communities to be effective. This requires large samples of predation events with identified predators; video technology is essential for this task.

Keywords: cowbird; grassland; nest predators; passerines; predator control; shrubland; snakes; video

Chapter.  6902 words.  Illustrated.

Subjects: Zoology and Animal Sciences

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