Safe Passages: Highways, Wildlife, and Habitat Connectivity by Jon P. Beckmann, Anthony P. Clevenger, Marcel Huijser, Jodi

By Jon P. Beckmann, Anthony P. Clevenger, Marcel Huijser, Jodi A. Hilty, Richard T.T. Forman

Secure Passages brings jointly in one quantity the newest info at the rising technological know-how of street ecology because it pertains to mitigating interactions among roads and flora and fauna. This functional instruction manual of instruments and examples is designed to help participants and enterprises wondering or operating towards lowering road-wildlife affects. The publication provides:an assessment of the significance of habitat connectivity in regards to roadscurrent making plans ways and applied sciences for mitigating the affects of highways on either terrestrial and aquatic speciesdifferent features of public participation in highway-wildlife connectivity mitigation projectscase experiences from partnerships throughout North the United States that spotlight winning on-the-ground implementation of ecological and engineering solutionsrecent leading edge highway-wildlife mitigation developmentsDetailed case stories span a number of scales, from site-specific flora and fauna crossing constructions, to statewide making plans for habitat connectivity, to nationwide laws. individuals discover the cooperative efforts which are rising because of assorted organizations—including transportation companies, land and natural world administration enterprises, and nongovernmental organizations—finding universal flooring to take on very important highway ecology matters and problems. Safe Passages is a crucial new source for local-, state-, and national-level managers and policymakers engaged on road-wildlife concerns, and may entice a extensive viewers together with scientists, business enterprise group of workers, planners, land managers, transportation specialists, scholars, conservation firms, policymakers, and voters engaged in road-wildlife mitigation tasks.

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Fencing, escape gates, and ramps). Other techniques used to increase motorist safety and reduce collisions with wildlife, such as specific measures (signage and animal-detection systems) and the adaptation of habitats and road infrastructure, are not within the scope of this chapter. Spacing of Wildlife Crossings Landscape connectivity is the degree to which the landscape facilitates wildlife movement and other ecological flows (Taylor et al. 1993). No two landscapes function the same for wildlife movement.

2008): Uses a binary node (habitat) and linkage in a network perspective. Similar to graph theory in its networked approach, and includes directionality and degree of connectivity between nodes. Can be used to quickly analyze large landscapes and datasets. Graph theory (Bunn et al. 2000; Minor and Urban 2008): Similar to circuit theory, graph theory uses a network (nodes and edges) approach to assessing connectivity. Scenario building can be used to show the most important linkages needed to maintain regional habitat connectivity.

Generally available from wildlife agencies conducting research in the project area. Many state/provincial transportation agencies collect location-specific data on wildlife species killed on their roads, either through carcass collections or collision reports. These data are primarily collected for large mammals and rarely for small and medium-sized fauna. These data can be used to identify road-kill hotspots, but do not provide information on where wildlife are successfully crossing the roadway.

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