The Influence of Habitat on Nest Survival of Snowy and Wilson's Plovers in the Lower Laguna Madre Region of Texas Hood, Sharyn Dinsmore, Stephen Dinsmore, Stephen
dc.contributor.department Natural Resource Ecology and Management 2018-02-15T23:35:29.000 2020-06-30T06:13:57Z 2020-06-30T06:13:57Z Mon Jan 01 00:00:00 UTC 2007 2015-03-11 2007-01-01
dc.description.abstract <p>Snowy Plovers (Charadrius alexandrinus) and Wilson’s Plovers (Charadrius wilsonia) are two shorebird species that nest along the Gulf Coast of the US. We modeled the daily nest survival of both species in the lower Laguna Madre region of Texas during the 2003 and 2004 breeding seasons as a function of nest age, year, day in the season, maximum daily temperature, daily precipitation, and habitat features at three spatial scales (microhabitat, a 25-m radius of the nest, and landscape). Daily survival of Snowy Plover nests increased with nest age ( Age = 0.03, 95% confi dence limits were –0.01, 0.07, on a logit scale), but did not vary between years. Nests inland had substantially lower daily survival than nests on the coast ( Inland = –0.18, 95% confi dence limits were –1.03, 0.67, on a logit scale). The presence of a conspicuous object at the nest site increased daily nest survival. A quadratic trend occurred on the coeffi cient of variation (CV) for low vegetation (CV used as an index of low vegetation spatial heterogeneity) at the 25-m scale for Snowy Plover nests. Daily nest survival of Wilson’s Plovers was best explained by a combination of two habitat metrics at the microhabitat scale. Less vegetation at the immediate nest site increased daily survival ( Veg = –1.35, 95% confi dence limits were –2.28, –0.42, on a logit scale) while daily nest survival was higher for nests with lower contagion at the microhabitat scale ( Contagion = –0.87, 95% confi dence limits were –1.65, –0.10, on a logit scale). We found no evidence for yearly differences or an effect of weather on the daily nest survival of either species. Our results illustrate the role that selected habitat features play in the nest survival of Snowy and Wilson’s plovers and further our understanding of their nesting ecology. We anticipate that our results will assist in the identifi cation and protection of habitats critical to breeding populations of these and other shorebird species.</p>
dc.description.comments <p>This article is from <em>Studies in Avian Biology</em> 34 (2007): 124. Posted with permission.</p>
dc.format.mimetype application/pdf
dc.identifier archive/
dc.identifier.articleid 1088
dc.identifier.contextkey 6822916
dc.identifier.s3bucket isulib-bepress-aws-west
dc.identifier.submissionpath nrem_pubs/87
dc.language.iso en
dc.source.bitstream archive/|||Sat Jan 15 02:15:23 UTC 2022
dc.subject.disciplines Natural Resources Management and Policy
dc.subject.disciplines Ornithology
dc.subject.disciplines Population Biology
dc.subject.keywords Charadrius alexandrinus
dc.subject.keywords C. wilsonia
dc.subject.keywords Laguna Madre
dc.subject.keywords nest success
dc.subject.keywords nest survival
dc.subject.keywords program MARK
dc.subject.keywords Snowy Plover
dc.subject.keywords Texas
dc.subject.keywords Wilson’s Plover.
dc.title The Influence of Habitat on Nest Survival of Snowy and Wilson's Plovers in the Lower Laguna Madre Region of Texas
dc.type article
dc.type.genre article
dspace.entity.type Publication
relation.isAuthorOfPublication 93cc6656-8f88-4982-be9c-06bedefca35f
relation.isOrgUnitOfPublication e87b7b9d-30ea-4978-9fb9-def61b4010ae
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