Abstract
A Geographic Information System (GIS) database was developed for Y,-ickapoo Cavern State Park, Tx. The digital database was used to characterize the Black-Capped Vireo ( Vireo Attricapillus Woodhouse) breeding habitat, and to produce a potential habitat map for the area. Relationships between Black-Capped Vireo (BCV) locations and topographic variables (slope and aspect) were investigated. When a chi-square test led to the rejection of a hypothesis inferring that a set of observations (territories) do not follow an expected occurrence pattern, a Bonferroni statistic test was used to evaluate preference or avoidance of a given slope or aspect category. In the park, BCV habitat is located on gentle slopes (012%); however, the analysis did not reveal a strong association between BCV location and slope exposure (aspect). For six-sub-landscapes, with different percentages of BCV suitable habitat, a modified fractal dimension was computed inside the GIS. This fractal dimension calculation describes diversity of a landscape, accounting for shape, patch juxtaposition, and eveness. GIS analysis helped in the proposition of camping sites and hiking trails to minimize the impact on BCV habitat and others preserved areas in the park.
Castiaux, Nathalie (1995). Analysis of the Black-Capped Vireo habitat at Kickapoo Caverns State Park, Texas using a Geographic Information System. Master's thesis, Texas A&M University. Available electronically from
https : / /hdl .handle .net /1969 .1 /ETD -TAMU -1995 -THESIS -C378.