Topographic controls on the regional-scale biodiversity of the south-western USA
نویسندگان
چکیده
Many topographic characteristics of the landscape (e.g. relief, slope, aspect, gradient, slope curvature, slope length and contour curvature) play important roles in the distribution of vegetation and biodiversity (e.g. Merriam, 1890, 1894; Whittaker & Niering, 1965, 1968; Vuilleumier, 1970; Brown, 1971, 1978; Hastings et al., 1972; Simpson, 1975; Hanawalt & Whittaker, 1976; Whittaker, 1977; Behle, 1978; Johnson, 1978; Peet, 1978; Patterson, 1980; Cole, 1982; Allen & Peet, 1990; Allen et al., 1991; Huggett, 1995; Burke, 1999; Hansen & Rotella, 1999). For terrestrial habitats, variation in species Los Alamos National Laboratory, Los Alamos, NM and RWU-4803, Forest Health Monitoring, US Forest Service, Research Triangle Park, NC, USA
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