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Drought and cooler temperatures are associated with higher nest survival in Mountain Plovers

Avian Conservation and Ecology

By:
, ,
DOI: 10.5751/ACE-00519-070106

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Abstract

Native grasslands have been altered to a greater extent than any other biome in North America. The habitats and resources needed to support breeding performance of grassland birds endemic to prairie ecosystems are currently threatened by land management practices and impending climate change. Climate models for the Great Plains prairie region predict a future of hotter and drier summers with strong multiyear droughts and more frequent and severe precipitation events. We examined how fluctuations in weather conditions in eastern Colorado influenced nest survival of an avian species that has experienced recent population declines, the Mountain Plover (Charadrius montanus). Nest survival averaged 27.2% over a 7-yr period (n = 936 nests) and declined as the breeding season progressed. Nest survival was favored by dry conditions and cooler temperatures. Projected changes in regional precipitation patterns will likely influence nest survival, with positive influences of predicted declines in summer rainfall yet negative effects of more intense rain events. The interplay of climate change and land use practices within prairie ecosystems may result in Mountain Plovers shifting their distribution, changing local abundance, and adjusting fecundity to adapt to their changing environment.

Additional Publication Details

Publication type:
Article
Publication Subtype:
Journal Article
Title:
Drought and cooler temperatures are associated with higher nest survival in Mountain Plovers
Series title:
Avian Conservation and Ecology
DOI:
10.5751/ACE-00519-070106
Volume
7
Issue:
1
Year Published:
2012
Language:
English
Publisher:
Resillience Alliance
Publisher location:
Wolfville, Nova Scotia
Contributing office(s):
Fort Collins Science Center
Description:
13 p.; Article 6
Larger Work Type:
Article
Larger Work Subtype:
Journal Article
Country:
United States