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Herbivores but not vegans: Deer as nest predators

Herbivores but not vegans: Deer as nest predators Deer abundance and occupancy areas are currently increasing worldwide, with unknown consequences for birds. Deer impacts on birds have mainly been assumed to be indirect through mechanisms that negatively influence vegetation complexity and reduce habitat quality. Information on the direct negative impacts on bird breeding success is scattered and rudimentary. Here we documented, through videos filmed with camera traps, non‐native deer preying on bird nests. We supported this finding by investigating nest predator behaviour in other areas of the world both in the scientific literature and audio‐visual platforms. We suggest that our scientific naturalist records and the collected information might reflect poorly understood deer behaviour, in both native and non‐native populations. In areas with a high number of individuals, nest predation by deer could have severe consequences for native birds, causing serious alterations in their breeding biology. Future studies are needed to address questions about the consequences of an increase in deer density on avian populations. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Austral Ecology Wiley

Herbivores but not vegans: Deer as nest predators

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References (15)

Publisher
Wiley
Copyright
© 2023 Ecological Society of Australia
ISSN
1442-9985
eISSN
1442-9993
DOI
10.1111/aec.13374
Publisher site
See Article on Publisher Site

Abstract

Deer abundance and occupancy areas are currently increasing worldwide, with unknown consequences for birds. Deer impacts on birds have mainly been assumed to be indirect through mechanisms that negatively influence vegetation complexity and reduce habitat quality. Information on the direct negative impacts on bird breeding success is scattered and rudimentary. Here we documented, through videos filmed with camera traps, non‐native deer preying on bird nests. We supported this finding by investigating nest predator behaviour in other areas of the world both in the scientific literature and audio‐visual platforms. We suggest that our scientific naturalist records and the collected information might reflect poorly understood deer behaviour, in both native and non‐native populations. In areas with a high number of individuals, nest predation by deer could have severe consequences for native birds, causing serious alterations in their breeding biology. Future studies are needed to address questions about the consequences of an increase in deer density on avian populations.

Journal

Austral EcologyWiley

Published: Nov 1, 2023

Keywords: exotic species; native birds; native deer; nest predation; Patagonian wetlands

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