San Joaquin kit foxes (Vulpes macrotis mutica) are Federally Endangered and California Threatened, primarily due to profound habitat degradation and loss. Roads potentially contribute to habitat fragmentation by creating barriers to animal movements. However, structures such as culverts, underpasses and overpasses could mitigate fragmentation effects by providing road crossing opportunities for foxes. We conducted a field investigation from 18 July 2005 to 21 June 2006 to determine (1) whether kit foxes use existing structures to cross highways, and (2) whether foxes exhibit any preferences among structure designs. The overall goal of this effort was to provide the California Department of Transportation with information that would contribute to mitigating impacts to kit foxes from four-lane divided highways. Data were collected at 3 study sites in Kern County: a 2-mile segment of Interstate 5(I-5), a 20-mile segment of State Route 14 (Rte 14), and an 8-mile segment of State Route 58 (Hwy-58). Eight structures were monitored along I-5, 17 along Rte 14, and 21 along Hwy 58. Use of structures by kit foxes and other species was monitored using track stations established at the ends of structures and motion-activated digital cameras placed within structures.


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    Titel :

    Use of Highway Crossing Structures by Kit Foxes


    Beteiligte:
    A. P. Clevenger (Autor:in) / C. M. Fiehler (Autor:in)

    Erscheinungsdatum :

    2007


    Format / Umfang :

    58 pages


    Medientyp :

    Report


    Format :

    Keine Angabe


    Sprache :

    Englisch




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