Mississippi State University Carnivore Ecology Laboratory

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American Black Bear (Ursus americanus)

Phase 1 (2009-2011)

Captures

Phase 1 Capture Summary



Radio-collared black bear recovering from immobilization

Figure 1: Radio-collared black bear recovering from immobilization.

Predation investigation (cluster) results

Phase 1 Cluster Summary

Because we investigated a variable number of clusters each year, for comparison, the summary above displays a scaled percentage axis where the red portion of the bar displays percent of clusters with a fawn predation and the black portion of the bar displays the percent of clusters without a fawn predation. The value in white within each red or black bar displays the actual number of clusters with or without a fawn predation, respectively.





Cub and mother bear after being placed back in the den during winter den checks

Figure 2: Cub and mother bear after being placed back in the den during winter den checks.

Den checks and cub production

Phase 1 - Number and age of bear handled during den checks<



Example bear home ranges using 95% fixed kernel density.

Figure 3: Example bear home ranges using 95% fixed kernel density. The male bear (BB38) collared from 17 June - 09 December 2010 had a home range size of 153.8 square kilometers or 59.4 square miles. The female bear (BB14) collared from 23 February - 13 December 2010 had a home range size of 30.5 square kilometers or 11.8 square miles. The disjoint areas in the home ranges (smaller polygons) are present because the individual did not use the area between the larger and smaller polygons although they traveled between those areas.


Phase 2 (2013-2015)

Captures

Phase II Black Bear Capture Summary



Project researcher, Tyler Petroelje, and principal investigator, Dr. Jerry Belant, removing immobilized bear from winter den.

Figure 4: Project researcher, Tyler Petroelje, and principal investigator, Dr. Jerry Belant, removing immobilized bear from winter den.


Predation investigation (cluster) results

Phase II Black Bear Cluster Summary

Because we investigated a variable number of clusters each year, for comparison, the summary above displays a scaled percentage axis where the red portion of the bar displays percent of clusters with a fawn predation and the black portion of the bar displays the percent of clusters without a fawn predation. The value in white within each red or black bar displays the actual number of clusters with or without a fawn predation, respectively.




Project researcher, Nick Fowler, with bear cub during winter den checks.

Figure 5: Project researcher, Nick Fowler, with bear cub during winter den checks.

Den checks and cub production

Phase II Number and age of bear handled during den checks




Example bear home ranges using 95% fixed kernel density.

Figure 6: Example bear home ranges using 95% fixed kernel density. The male bear (BB146) was collared from 06 March - 08 September 2014 and had a home range size of 556 square kilometers or 214 square miles. Female bear (BB112) was collared from 16 February - 03 October 2013 and had a home range size of 9 square kilometers or 4 square miles.



Phase 3 (2017-2019)

Not yet available.