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On the estimation of the black-capped vireo (Vireo atricapillus) territory density using geographic information systems technology

@ Atlanta University Center Robert W. Woodruff Library

Polk, Jada Philous


ThesisM.S.Mathematical SciencesThis study is based on a 1994 survey of the nesting and territory preferences of the black-capped vireo, a small migratory songbird, within Fort Hood, Texas. By Federal Government Order 51 FR 44808-44812 of 1987 (Tazik et al., 1992), these birds were declared an endangered species based on a series of studies by J. D. Cornelius in 1985 and 1986 (Tazik et al., 1993). In this study, it has been shown that the vireo nesting and territory preferences are not uniform across Fort Hood installation grounds, rather the preference is towards the north to northwest. The vegetation in this region consists of oak woodlands, with grassy undergrowth; the elevation is at most 260 meters above sea level; and the geology yields loose and chalky limestone. In addition, the territory intensity, λij(s), for each point s(x,y) in the ijth grid cell on the military installation, has been estimated. For each such grid cell, the probability of a successful territory is given by Geographic Information Systems (GIS) raster color maps of territory distribution of the vireo have been produced. These maps were overlaid on the slope, aspect, soils, elevation, vegetation, and military activities coverages. With the density estimate of nesting success and the GIS maps, territory position preferences were identified, thus, helping in the Land Management Plan for the preservation of the black-capped vireo on the Fort Hood Military Installation.Electronic theses & dissertations collection for Atlanta University & Clark Atlanta University
Created Date:
1996 05 01
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Atlanta University Center Robert W. Woodruff Library

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Digital Library of Georgia