Population demographics of translocated northern bobwhites on fragmented habitat

Autor: Jason L. Scott, Fidel Hernández, Leonard A. Brennan, Bart M. Ballard, Michael Janis, N. David Forrester
Jazyk: angličtina
Rok vydání: 2013
Předmět:
Zdroj: Wildlife Society Bulletin, Vol 37, Iss 1, Pp 168-176 (2013)
Druh dokumentu: article
ISSN: 2328-5540
DOI: 10.1002/wsb.239
Popis: Abstract Habitat fragmentation is considered a contributing factor to declining populations of northern bobwhite (Colinus virginianus). Some population strongholds exist within large expanses of habitat; however, many regions of the species' range have become fragmented and populations therein have become nearly extirpated. Our objectives were to determine whether combined habitat management and bobwhite translocation could restore bobwhite populations in habitat patches within a fragmented landscape. We translocated 550 bobwhites to 2 sites (≥660 ha; Caldwell and Fayette counties) in the Post Oak Savannah ecoregion of Texas, USA, during 2004–2006. We compared survival, home‐range size, and reproduction between translocated bobwhites in a fragmented landscape and resident bobwhites in contiguous habitat (Brooks County). Pooled over the 3‐year study, translocated bobwhites had lower survival (6 Apr–15 Aug, 2004–2006; Ŝ = 0.35; n = 165 bobwhites) than did resident bobwhites (Ŝ = 0.56; n = 224 bobwhites; P
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