During the scavenger carcass-removal trial, FEHAs foraged on the BTPD carcasses placed by us in the untreated subcolony despite the lack of trees and utility poles.
During the scavenger carcass-removal trial, raptors fed only on the BTPD carcasses placed as part of the trial in the three subcolonies.
Although our observations are limited by our small sample size on a single species at a single BTPD colony, our findings offer information towards conservation of FEHAs.
While conducting a larger study to determine the hazards of Rozol[R] to wildlife, we hypothesized ferruginous hawk behavior would follow predictions of foraging theory, and they would prefer to hunt BTPDs in Rozol[R] treated areas because of the availability of easy-to-capture (poisoned) prey.
Predations by FEHAs were documented from the blinds and through discovery of preyed upon BTPDs during carcass searches conducted at the end of the daily observation period after the FEFLAs had departed from the study area.
hirsuta were able to disperse between BTPD colonies potentially spreading Y.
Bureau of Land Management for granting permission to conduct research on their BTPD colonies.
Over 200 prairie species are supported by BTPDs including the endangered black-footed ferret, Mustela nigripes (Carnivora: Mustelidae) (1).
The current truth layer was converted into a layer of points representing the geographic centers, or centroids, of current BTPD colonies.
Definitions of vegetative alliances and associations (NatureServe 2006) were defined to characterize the ecosystems colonized by the BTPD in Texas.
Between 2000 and 2004, occupied BTPD colonies in 73 Texas counties were ground-truthed, and reports of occupied colonies in Reeves, Irion, and Tarrant Counties were received (Fig.
Based on these results, the range of the BTPD in Texas had receded from the southern and eastern historical boundaries and from the western historical boundary in the Trans-Pecos (Fig.