The effects of water depth and vegetation on wading bird foraging habitat selection and foraging succes in the Everglades.Report as inadecuate


 The effects of water depth and vegetation on wading bird foraging habitat selection and foraging succes in the Everglades.


The effects of water depth and vegetation on wading bird foraging habitat selection and foraging succes in the Everglades. - Download this document for free, or read online. Document in PDF available to download.



Type of Resource: text

Genre: Electronic Thesis or Dissertation

Date Issued: 2008

Publisher: Florida Atlantic University

Physical Form: electronic

Extent: ix, 68 p. : ill.

Language(s): English

Summary: Successful foraging by avian predators is influenced largely by prey availability. In a large-scale experiment at the Loxahatchee Impoundment Landscape Assessment project within the Arthur R. Marshall Loxahatchee National Wildlife Refuge, I manipulated two components of prey availability, water depth and vegetation density (submerged aquatic vegetation and emergent vegetation), and quantified the response by wading birds in terms of foraging habitat selection and foraging success. Manly's standardized selection index showed that birds preferred shallow water and intermediate vegetation densities. However, the treatments had little effect on either individual capture rate or efficiency. This was a consistent pattern seen across multiple experiments. Birds selected for certain habitat features but accrued little benefit in terms of foraging success. I hypothesize that birds selected sites with shallow water and intermediate vegetation densities because they anticipated higher prey densities, but they did not experience it here because I controlled for prey density.

Identifier: 670429667 (oclc), 2788592 (digitool), FADT2788592 (IID), fau:3544 (fedora)

Note(s): by Samantha Lantz.Thesis (M.S.)--Florida Atlantic University, 2008.Includes bibliography.Electronic reproduction. Boca Raton, Fla., 2008. Mode of access: World Wide Web.

Subject(s): Water birds -- Habitat -- Florida -- EvergladesWetland ecology -- Florida -- EvergladesHabitat selectionAvian ecology -- Florida -- EvergladesWildlife management -- Florida -- Everglades

Persistent Link to This Record: http://purl.flvc.org/FAU/2788592

Owner Institution: FAU



Author: Lantz, Samantha.

Source: http://fau.digital.flvc.org/islandora/object/fau%3A3544



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