Efficacy of acclimating and releasing captive-reared and wild-translocated Northern bobwhites

Author:

Reyna Kelly S1ORCID,Whitt Jeffrey G1,Newman William L2

Affiliation:

1. College of Agricultural Sciences and Natural Resources, Texas A&M University Commerce, Commerce, TX, USA

2. College of Science, University of North Texas, Denton, TX, USA

Abstract

Northern bobwhite populations are dwindling across their range. Accordingly, in areas with bobwhite habitat restoration and no nearby populations, effective population restoration techniques are needed. Here, we evaluated three bobwhite restoration release strategies: (1) release of captive-reared bobwhites on sites with and without resident populations, (2) translocation of wild-trapped bobwhites from a region of high population density to a region with no population, and (3) release of captive-reared and wild-translocated bobwhites acclimated on site prior to release in year 2. Wild-translocated birds survived longer than captive-reared birds. Mean survival for captive-reared bobwhites was 2.42 weeks, and 4.27 weeks in year 1, and 1.91 and 1.40 weeks in year 2, for study sites without resident and with resident birds present, respectively. Mean survival for wild-translocated birds was 8.50 weeks in year 1, and 11.54 weeks in year 2. Wild-translocated birds dispersed shorter distances than captive-reared birds. Both captive-reared and wild-translocated bobwhites only nested on study sites with conspecifics. Captive-reared birds had 0 nesting attempts on the site with no resident bobwhites, and ⩾8 nests on the site with resident bobwhites. Wild-translocated females nested six times and were subsequently observed with juveniles. On-site acclimation did not increase post-release survival for northern bobwhites. Acclimation increased site fidelity but reduced survival for captive-reared birds and had no impact on survival for wild-translocated bobwhites. Population restoration by release of captive-reared or wild-translocated birds is not irrelevant, but further investigation is needed into the relationship between captive-reared birds and predators, and methods to increase survival and reproduction of released birds.

Publisher

SAGE Publications

Subject

Animal Science and Zoology,Ecology, Evolution, Behavior and Systematics

Cited by 1 articles. 订阅此论文施引文献 订阅此论文施引文献,注册后可以免费订阅5篇论文的施引文献,订阅后可以查看论文全部施引文献

同舟云学术

1.学者识别学者识别

2.学术分析学术分析

3.人才评估人才评估

"同舟云学术"是以全球学者为主线,采集、加工和组织学术论文而形成的新型学术文献查询和分析系统,可以对全球学者进行文献检索和人才价值评估。用户可以通过关注某些学科领域的顶尖人物而持续追踪该领域的学科进展和研究前沿。经过近期的数据扩容,当前同舟云学术共收录了国内外主流学术期刊6万余种,收集的期刊论文及会议论文总量共计约1.5亿篇,并以每天添加12000余篇中外论文的速度递增。我们也可以为用户提供个性化、定制化的学者数据。欢迎来电咨询!咨询电话:010-8811{复制后删除}0370

www.globalauthorid.com

TOP

Copyright © 2019-2024 北京同舟云网络信息技术有限公司
京公网安备11010802033243号  京ICP备18003416号-3