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Life Sciences Commons

Open Access. Powered by Scholars. Published by Universities.®

Zoology

2014

Series

Aerial survey

Articles 1 - 1 of 1

Full-Text Articles in Life Sciences

Incorporating Detection Probability Into Northern Great Plains Pronghorn Population Estimates, Christopher N. Jacques, Jonathan A. Jenks, Troy W. Grovenburg, Robert W. Klaver, Christopher S. Deperno Jan 2014

Incorporating Detection Probability Into Northern Great Plains Pronghorn Population Estimates, Christopher N. Jacques, Jonathan A. Jenks, Troy W. Grovenburg, Robert W. Klaver, Christopher S. Deperno

Natural Resource Ecology and Management Publications

Pronghorn (Antilocapra americana) abundances commonly are estimated using fixed-wing surveys, but these estimates are likely to be negatively biased because of violations of key assumptions underpinning line-transect methodology. Reducing bias and improving precision of abundance estimates through use of detection probability and mark-resight models may allow for more responsive pronghorn management actions. Given their potential application in population estimation, we evaluated detection probability and mark-resight models for use in estimating pronghorn population abundance. We used logistic regression to quantify probabilities that detecting pronghorn might be influenced by group size, animal activity, percent vegetation, cover type, and topography. We estimated pronghorn ...