Range-wide population size of the lesser prairie-chicken: 2012 and 2013
We flew aerial line-transect surveys to estimate the range-wide population size of lesser prairie-chickens (Tympanuchus pallidicinctus) in the Great Plains, United States in 2012 and 2013. We also estimated the number of lesser prairie-chicken leks, the number of mixed-species leks that contained bo...
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Published in | Wildlife Society bulletin Vol. 38; no. 3; pp. 536 - 546 |
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Main Authors | , , , , , , , , , , , |
Format | Journal Article |
Language | English |
Published |
Blackwell Publishing Ltd
01.09.2014
Wildlife Society |
Subjects | |
Online Access | Get full text |
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Summary: | We flew aerial line-transect surveys to estimate the range-wide population size of lesser prairie-chickens (Tympanuchus pallidicinctus) in the Great Plains, United States in 2012 and 2013. We also estimated the number of lesser prairie-chicken leks, the number of mixed-species leks that contained both lesser and greater prairie-chickens (T. cupido) and the number of hybrid lesser–greater prairie-chickens where these species' ranges overlap. The study area included the 2011 estimated occupied lesser prairie-chicken range in 5 states and was divided into 4 ecoregions. We created a sampling frame over the study area, consisting of 536 15- × 15-kmgrid cells. We flew 512 transects within a probabilistic sample of 256 cells totaling 7,680 km in 2012 and 566 transects within a probabilistic sample of 283 cells totaling 8,490 km in 2013. We estimated a total of 34,440 individual lesser prairie-chickens in 2012 (17,615 in 2013) and 350 hybrid lesser–greater prairie-chickens in 2012 (342 in 2013) in the study area. We estimated a total of 2,930 lesser prairie-chicken leks in 2012 (2,037 in 2013) and 453 lesser and greater prairie-chicken mixed leks in 2012 (356 in 2013) in the study area. We discuss the implications of alternative sampling designs with regard to conservation questions to be addressed. |
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Bibliography: | ark:/67375/WNG-NFFJQ27X-X istex:D5EFB5790352A7A89022EA9AB4E97EF989049241 ArticleID:WSB417 |
ISSN: | 1938-5463 1938-5463 2328-5540 |
DOI: | 10.1002/wsb.417 |