Growth Rates and Intraspecific Variation in Body Weights of Raccoons (Procyon lotor) in Southern Texas

STANLEY D. GEHRT; ERIK K. FRITZELL

doi:10.1674/0003-0031(1999)141[0019:GRAIVI]2.0.CO;2

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STANLEY D. GEHRT,¹ ERIK K. FRITZELL²

¹Max McGraw Wildlife Foundation, P.O. Box 9, Dundee, Illinois 60118
²Department of Fisheries and Wildlife, Oregon State University, Corvallis 97331

Abstract

We estimated growth rates and sex and age-specific seasonal weight fluctuations for raccoons (Procyon lotor) in San Patricio Co., Texas. During 1990–1992 we recorded 248 weights for 167 raccoons. Growth rate parameters for raccoons <2-years-old differed (P < 0.05) between males and females. Females reached adult size as yearlings, while males did not reach adult size until they approached 2 yr of age. Mean weights of adult raccoons differed between sexes (P < 0.0001) and among months (P < 0.0001). Raccoons in a subtropical climate experienced seasonal fluctuations in body weight; however, these seasonal patterns differed in their timing and magnitude from those of raccoons in temperate climates.

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STANLEY D. GEHRT and ERIK K. FRITZELL "Growth Rates and Intraspecific Variation in Body Weights of Raccoons (Procyon lotor) in Southern Texas," The American Midland Naturalist 141(1), 19-27, (1 January 1999). https://doi.org/10.1674/0003-0031(1999)141[0019:GRAIVI]2.0.CO;2

Accepted: 1 May 1998; Published: 1 January 1999

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