Survival, Home Range and Spatial Relationships of Virginia's Exploited Black Bear Population
Eighty-three (21M, 62F) of 194 black bears captured during 1994-1996 were equipped with radio collars. Annual survival rates estimated with Kaplain-Meier staggered entry approach for radio collared adult females, adult males, subadult females, and subadult males were 95.3, 100.0, 90.4 and 50.0% res...
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ndltd-VTETD-oai-vtechworks.lib.vt.edu-10919-367652020-09-29T05:44:09Z Survival, Home Range and Spatial Relationships of Virginia's Exploited Black Bear Population Higgins, Jennifer C. Fisheries and Wildlife Sciences Vaughan, Michael R. Martin, Dennis D. Kirkpatrick, Roy L. Haas, Carola A. Black bear survival exploited home range Eighty-three (21M, 62F) of 194 black bears captured during 1994-1996 were equipped with radio collars. Annual survival rates estimated with Kaplain-Meier staggered entry approach for radio collared adult females, adult males, subadult females, and subadult males were 95.3, 100.0, 90.4 and 50.0% respectively. Hunting, handling, vehicle collisions, and natural causes accounted for 81.0, 11.1, 3.2, and 1.6% of mortality. Twenty, 9.8, and 70.6 % of bears harvested were harvested in the deer firearm season, the deer archery season, and the bear firearm season, respectively. Twenty-three cubs were equipped with expandable radio collars (11M,10F) or transmitters implanted subcutaneously (2M,0F) in 1995-1996. Six cubs (4M, 2F) died, 6 (3M,3F) survived their first year, and the status of 11 cubs (6M, 5F) was unknown. Survival rates (date marked until 4 December) estimated with Kaplain-Meier and Heisey-Fuller were 64.3 and 64.7% respectively. Interval survival rates were 71% (15 March to 31 May), 100% (1 June to 31 July), 92% (1 August to 31 August), and 100% (1 September to 4 December). Intraspecific aggression (33.3%), starvation (16.7%), unknown causes (16.7%) and predation (16.7%) were the causes of mortality. Total home range size for males and adult, subadult, and transitional age females were 7.2, 5.5, 5.6 and 7.2 km2 (95% MCP) and 11.2, 6.8, 9.0, and 10.0 km2 (95% normal kernel). Females with cubs had larger fall ranges than spring and summer ranges. Seasonal ranges of solitary females did not differ when estimated with MCP. Bears exhibited home range overlap among and within sex classes. Master of Science 2014-03-14T20:51:44Z 2014-03-14T20:51:44Z 1997-04-25 1997-04-25 1998-09-02 1997-09-02 Thesis etd-51297-181141 http://hdl.handle.net/10919/36765 http://scholar.lib.vt.edu/theses/available/etd-51297-181141/ THESIS2.PDF In Copyright http://rightsstatements.org/vocab/InC/1.0/ application/pdf Virginia Tech |
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Black bear survival exploited home range Higgins, Jennifer C. Survival, Home Range and Spatial Relationships of Virginia's Exploited Black Bear Population |
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Eighty-three (21M, 62F) of 194 black bears captured during 1994-1996 were equipped with radio collars. Annual survival rates estimated with Kaplain-Meier staggered entry approach for radio collared adult females, adult males, subadult females, and subadult males were 95.3, 100.0, 90.4 and 50.0% respectively. Hunting, handling, vehicle collisions, and natural causes accounted for 81.0, 11.1, 3.2, and 1.6% of mortality. Twenty, 9.8, and 70.6 % of bears harvested were harvested in the deer firearm season, the deer archery season, and the bear firearm season, respectively.
Twenty-three cubs were equipped with expandable radio collars (11M,10F) or transmitters implanted subcutaneously (2M,0F) in 1995-1996. Six cubs (4M, 2F) died, 6 (3M,3F) survived their first year, and the status of 11 cubs (6M, 5F) was unknown. Survival rates (date marked until 4 December) estimated with Kaplain-Meier and Heisey-Fuller were 64.3 and 64.7% respectively. Interval survival rates were 71% (15 March to 31 May), 100% (1 June to 31 July), 92% (1 August to 31 August), and 100% (1 September to 4 December). Intraspecific aggression (33.3%), starvation (16.7%), unknown causes (16.7%) and predation (16.7%) were the causes of mortality.
Total home range size for males and adult, subadult, and transitional age females were 7.2, 5.5, 5.6 and 7.2 km2 (95% MCP) and 11.2, 6.8, 9.0, and 10.0 km2 (95% normal kernel). Females with cubs had larger fall ranges than spring and summer ranges. Seasonal ranges of solitary females did not differ when estimated with MCP. Bears exhibited home range overlap among and within sex classes. === Master of Science |
author2 |
Fisheries and Wildlife Sciences |
author_facet |
Fisheries and Wildlife Sciences Higgins, Jennifer C. |
author |
Higgins, Jennifer C. |
author_sort |
Higgins, Jennifer C. |
title |
Survival, Home Range and Spatial Relationships of Virginia's Exploited Black Bear Population |
title_short |
Survival, Home Range and Spatial Relationships of Virginia's Exploited Black Bear Population |
title_full |
Survival, Home Range and Spatial Relationships of Virginia's Exploited Black Bear Population |
title_fullStr |
Survival, Home Range and Spatial Relationships of Virginia's Exploited Black Bear Population |
title_full_unstemmed |
Survival, Home Range and Spatial Relationships of Virginia's Exploited Black Bear Population |
title_sort |
survival, home range and spatial relationships of virginia's exploited black bear population |
publisher |
Virginia Tech |
publishDate |
2014 |
url |
http://hdl.handle.net/10919/36765 http://scholar.lib.vt.edu/theses/available/etd-51297-181141/ |
work_keys_str_mv |
AT higginsjenniferc survivalhomerangeandspatialrelationshipsofvirginiasexploitedblackbearpopulation |
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1719345660483862528 |