Skip to Main Content
U.S. Forest Service
Caring for the land and serving people

United States Department of Agriculture

Home > Search > Publication Information

  1. Share via EmailShare on FacebookShare on LinkedInShare on Twitter
    Dislike this pubLike this pub

    Description

    Conservation and management plans often rely on indicators such as species occupancy or density to define habitat quality, ignoring factors that influence reproductive success, and potentially limiting conservation achievements. We examined relationships between predicted density and nest survival with environmental features at multiple spatial scales for the golden-cheeked warbler (Setophaga chrysoparia) in a large preserve within an urbanizing landscape. Larger-scale features of the forest and landscape composition best predicted density, whereas small-scale vegetation features best predicted nest success. Predicted warbler density was more influenced by vegetation structure at the forest (100-m) and landscape (1-km) scales than at the plot (5–11.3-m) scale. Predicted warbler density increased with greater woodland cover (100-m), average canopy height (100-m), and mixed woodland cover (1-km). Average predicted density derived from distance sampling models fit to count data across 1,506 points surveyed during 2011–2014 was 0.21 males/ha (95% CI=0.20–0.22). Nest survival (n=610 nests) was strongly correlated with vegetation and terrain characteristics at the plot scale. Period nest survival decreased 28% and increased 36% and 21% across the range of slope, woody understory, and juniper basal area, respectively. Daily nest survival averaged 0.97 (0.96–0.98) but declined throughout the breeding season and varied annually (2011–2015). We recommend management for a high percentage of closed-canopy, tall mixed juniper (Juniperus ashei)-oak (Quercus spp.) woodland at the forest and landscape scales to support high densities of warblers. We also recommend protecting upland woodlands with a well-developed woody understory and greater basal area of junipers because these characteristics were associated with greater nest success.

    Publication Notes

    • Check the Northern Research Station web site to request a printed copy of this publication.
    • Our on-line publications are scanned and captured using Adobe Acrobat.
    • During the capture process some typographical errors may occur.
    • Please contact Sharon Hobrla, shobrla@fs.fed.us if you notice any errors which make this publication unusable.
    • We recommend that you also print this page and attach it to the printout of the article, to retain the full citation information.
    • This article was written and prepared by U.S. Government employees on official time, and is therefore in the public domain.

    Citation

    Reidy, Jennifer L.; Thompson, Frank R., III; O'Donnell, Lisa. 2017.Density and nest survival of golden-cheeked warblers: Spatial scale matters. The Journal of Wildlife Management. 81(4): 678-689. https://doi.org/10.1002/jwmg.21234.

    Cited

    Google Scholar

    Keywords

    basal area, canopy height, habitat quality, mixed woodland, Setophaga chrysoparia, slope, understory, woodland cover

    Related Search


    XML: View XML
Show More
Show Fewer
Jump to Top of Page
https://www.fs.usda.gov/treesearch/pubs/54285