State and provincial estimates of American black bear numbers versus assessments of population trend

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Subfields: Ecology

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Wolf survival and population trend using non-invasive capture-recapture techniques in the Western Alps (2009, background): “…regional population size but lack the rigour of formal estimates of population size that address the problem of imperfect detections during surveys (Fuller et al.1992; Boitani 2003; Williams, Nichols, & Conroy 2002) and are poorly suited to assess population trends (Garshelis & Hristienko 2006).”