AdvisorKrausman, Paul R.
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PublisherThe University of Arizona.
RightsCopyright © is held by the author. Digital access to this material is made possible by the University Libraries, University of Arizona. Further transmission, reproduction or presentation (such as public display or performance) of protected items is prohibited except with permission of the author.
AbstractI investigated the effects of winter prescribed burning on relative abundance and species richness of birds in mesquite (Prosopis glandulosa)-grassland at the Welder Wildlife Foundation Refuge, Texas, from June 1995 to August 1996. Relative abundance (P=0.246) and species richness (P=0.622) of breeding birds were not different, but mourning doves (Zendaida macroura) (P=0.058) and great-tailed grackles (Quiscalus mexicanus) (P=0.084) increased, and black-bellied whistling ducks (Dendrocygna autumnalis) (P=0.040) declined in burned treatments. Relative abundance of wintering birds was greater (P=0.002) in burned treatments, but species richness was not different (P=0.602). Mourning doves (P < 0.001) and savannah sparrows (Passerculus sandwichensis) (P=0.001) increased, but grasshopper sparrows (Ammondramus savannarum) (P=0.009), Le Conte's sparrows (Ammondramus leconteii) (P=0.001), and sedge wrens (Cistothorus platensis) (P=0.001) declined in burned treatments in winter.
Degree ProgramGraduate College
Renewable Natural Resources