Consecutive Quintuplet Litters from a Black Bear (Ursus Americanus) in Central Wisconsin

Karl D. Malcolm; Mike Gappa; Bruce Kohn; Timothy R. Van Deelen

doi:10.1674/0003-0031(2008)160[250:CQLFAB]2.0.CO;2

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Karl D. Malcolm,¹ Mike Gappa,² Bruce Kohn,³ Timothy R. Van Deelen⁴

¹Department of Forest and Wildlife Ecology, University of Wisconsin-, Madison 53706
²Wisconsin Department of Natural Resources (Retired), Eau Claire 54702
³Wisconsin Department of Natural Resources (Retired), Rhinelander 54501
⁴Department of Wildlife Ecology, University of Wisconsin, Madison 53706

Abstract

Black bear (Ursus americanus) reproduction is critically linked to female nutrition. In highly productive females, litters include up to six cubs. Little is known about the yearly reproductive success of individual females that produce abnormally large litters. Further, survival of offspring born among so many siblings is poorly known. We report on a female bear in highly agricultural habitat that produced two successive litters of quintuplets in alternate years during a period of maternal net growth from Feb. 2005 through Mar. 2007.

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Karl D. Malcolm, Mike Gappa, Bruce Kohn, and Timothy R. Van Deelen "Consecutive Quintuplet Litters from a Black Bear (Ursus Americanus) in Central Wisconsin," The American Midland Naturalist 160(1), 250-252, (1 July 2008). https://doi.org/10.1674/0003-0031(2008)160[250:CQLFAB]2.0.CO;2

Received: 26 March 2007; Accepted: 1 November 2007; Published: 1 July 2008

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