We examined the impacts of possible future land development patterns on the biodiversity of a landscape. Our landscape data included a remote sensing derived map of the current habitat of the study area and six maps of future habitat distributions resulting from different land development scenarios. Our species data included lists of all bird, mammal, reptile, and amphibian species in the study...

White-tailed deer (Odocoileus virginianus) and mule deer (O. hemionus) occur sympatrically across much of the central and western United States, including portions of west Texas. Fluctuations in populations of both species and the potential for interspecific competition indicate a need for information to aid in management of sympatric populations. We evaluated the role of vegetation and topogra...

To determine the potential habitat of two rangeland species of Salsola rigidaand Agropyron trichophorum in Qasr-e-Shirin, Iran, Geographic Information Systems(GIS) and Remote Sensing (RS) techniques were used. At first, several maps (vegetationcover and land uses maps and thematic maps of various organizations) were collected orprepared. For digitizing geology, vegetation and conventional state...

Future expected changes in climate and human activity threaten many riparian habitats, particularly in the southwestern U.S. Using Maximum Entropy (MaxEnt3.3.3) modeling, we characterized habitat relationships and generated spatial predictions of habitat suitability for the Lucy's warbler (Oreothlypis luciae), the Southwestern willow flycatcher (Empidonax traillii extimus) and the Western yello...

Multiple-use zones around protected areas are designed to balance human resource needs with wildlife conservation, but conflicts between wildlife and people in these areas of co-occurrence (CA) can seriously undermine their conservation potential. We evaluated this issue by assessing the effects of conflictinduced mortality in CAs around an inviolate core, on long-term population viability of t...

Greater sage-grouse (Centrocercus urophasianus) occupy sagebrush (Artemisia spp.) habitats in 11 western states and 2 Canadian provinces. In September 2015, the U.S. Fish and Wildlife Service announced the listing status for sage-grouse had changed from warranted but precluded to not warranted. The primary reason cited for this change of status was that the enactment of new regulatory mechanism...

Home ranges have long been studied in animal ecology. Core areas may be used at a greater proportion than the rest of home range, implying core contains dependable resources. The Pacific fisher (Pekania pennanti (Erxleben, 1777)) is rare mesocarnivore occupying small area Sierra Nevada Mountains, California, USA. Once statewide, fishers declined 1900s due to trapping, habitat fragmentation, and...

to determine the potential habitat of two rangeland species of salsola rigidaand agropyron trichophorum in qasr-e-shirin, iran, geographic information systems(gis) and remote sensing (rs) techniques were used. at first, several maps (vegetationcover and land uses maps and thematic maps of various organizations) were collected orprepared. for digitizing geology, vegetation and conventional state...