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Keyword: black bear

Combined use of mark-recapture and genetic analyses reveals response of a black bear population to changes in food productivity

Publications Posted on: October 23, 2013
We used mark-recapture analysis to investigate the dynamics of a black bear (Ursus americanus) population in northern Idaho where food availability varies seasonally and annually. We conducted noninvasive genetic sampling (NGS) during 2003-2006 in the Purcell Mountains of Idaho to collect black bear DNA samples for individual identification of bears.

Cost-efficient selection of a marker panel in genetic studies

Publications Posted on: September 19, 2013
Genetic techniques are frequently used to sample and monitor wildlife populations. The goal of these studies is to maximize the ability to distinguish individuals for various genetic inference applications, a process which is often complicated by genotyping error. However, wildlife studies usually have fixed budgets, which limit the number of geneticmarkers available for inclusion in a study marker panel.

Movement behavior explains genetic differentiation in American black bears

Publications Posted on: March 30, 2011
Individual-based landscape genetic analyses provide empirically based models of gene flow. It would be valuable to verify the predictions of these models using independent data of a different type. Analyses using different data sources that produce consistent results provide strong support for the generality of the findings. Mating and dispersal movements are the mechanisms through which gene flow operates in animal populations.

Use of empirically derived source-destination models to map regional conservation corridors

Publications Posted on: February 02, 2009
The ability of populations to be connected across large landscapes via dispersal is critical to longterm viability for many species. One means to mitigate population isolation is the protection of movement corridors among habitat patches. Nevertheless, the utility of small, narrow, linear features as habitat corridors has been hotly debated.