Habitat fragmentation in the southeastern Coastal Plain is widely regarded as a central issue in the management of black bear (Ursus americanus) populations. Further habitat loss and fragmentation, and increases in human density, may influence the persistence of black bears throughout this region. Therefore, tools to evaluate these impacts are need...
Between 2000 and 2007, the Canadian Pacific Railway emerged as the leading human-related cause of grizzly bear mortality in Banff National Park. Seven grizzlies were struck by CPR trains, and none of the five cubs orphaned by these collisions survived within the park. Other wildlife also have been struck and killed. Spilled grain, track-side attrac...
Deer-vehicle collisions (DVCs) are increasing across the United States, including Arkansas. These collisions involve risk of human injury and fatality, property damage, and loss of wildlife. The annual number of DVCs in Arkansas may be as great as 18,000 (13.6% of the reported legal deer harvest in 2005) with an estimated property damage of $35 mil...
Roads are the ultimate manifestation of urbanization, providing essential connectivity within and between rural and heavily populated areas. Roads permeate national forests and other established wilderness areas; consequently, no areas in the U.S. are protected from this expanding infrastructure. The ecological impacts roads have on herpetofauna ac...
With the release of the Arizona’s Wildlife Linkages Assessment, November 2006, the Arizona Wildlife Linkages Workgroup is working to integrate and incorporate wildlife concerns and habitat connectivity needs into the forefront of transportation and regional planning processes to address habitat fragmentation due to highways and other human developm...
The barrier effect of roads is now well documented and solutions such as fauna passages are readily imple¬mented (Trocmé et al. 2002). Less well known is the mortality caused by specific engineering structures used along roads, such as drainage systems. This research focuses on censusing wildlife hazards caused by such structures and developing sol...
Roadkill data have been analyzed in a 25.6 mile-long highway stretch in the Californian central coast, in search of distribution patterns. The highway stretch was broken up into 1/10 mile sections. Roadkill data were collected along the road, mapped, and analyzed together with surrounding landscape units and landscape features defined at three diff...
The effects of roads and railways on animals such as direct mortality caused by these infrastructure elements were recognised as early as the end of the ninetenth century. In the first half of the twentieth century further evidence gathered related to different vertebrate groups. Besides the increasing amount of information available on the environ...
This study proposes an alternative to the current use of the “openness ratio” by investigating the contribution of the acoustical and visual proprerties as a result of structure shape and size to its effectiveness for deer. Reed et al. (1975) coined the term “openness” to describe and measure a concept that mule deer (Odocoileus hemionus) prefer cr...
Statewide connectivity planning represents an important first step for informing the transportation planning process at the statewide and regional levels. However, without finer scale assessment, such broad-scale planning does not provide sufficient information for integration into project-level designs. The Linking Colorado’s Landscapes project – ...
