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Timing of spring surveys for midcontinent sandhill cranes

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Pearse, A. T., G. L. Krapu, D. A. Brandt, and G. A. Sargeant. (2014). Timing of spring surveys for midcontinent sandhill canes. Wildlife Society Bulletin, doi: 10.1002/wbs.496 (Online early view 7 Nov) http://onlinelibrary.wiley.com/doi/10.1002/wsb.496/pdf

Summary

The U.S. Fish and Wildlife Service has used spring aerial surveys to estimate numbers of migrating sandhill cranes (Grus canadensis) staging in the Platte River Valley of Nebraska, USA. Resulting estimates index the abundance of the midcontinent sandhill crane population and inform harvest management decisions. However, annual changes in the index have exceeded biologically plausible changes in population size (>50% of surveys between 1982 and 2013 indicate >±20% change), raising questions about nuisance variation due to factors such as migration chronology. We used locations of cranes marked with very-high-frequency transmitters to estimate migration chronology (i.e., proportions of cranes present within the Platte River Valley). [...]

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  • Northern Prairie Wildlife Research Center

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Harvester
Harvested on Thu Apr 30 04:17:50 MDT 2015 from MODS XML Service

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Type Scheme Key
local-index unknown 70133376
local-pk unknown 70133376
doi http://www.loc.gov/standards/mods/mods-outline-3-5.html#identifier doi:10.1002/wsb.496
series unknown Wildlife Society Bulletin

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citationTypeArticle
journalWildlife Society Bulletin
languageEnglish
parts
typevolume
value39
typeissue
value1

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