The British Herpetological Society

The Herpetological Journal is the Society's prestigious quarterly scientific journal. Articles are listed in Biological Abstracts, Current Awareness in Biological Sciences,Current Contents, Science Citation Index, and Zoological Record.

 ISSN 0268-0130

2021 Impact Factor from Clarivate for the Herpetological Journal is 1.194, an increase of 0.332 from 2020.

pdf 02. Growth, allometry and sexual dimorphism in the Florida box turtle, Terrapene carolina bauri


Open Access


Authors: Carl H. Ernst , James C . Wilgenbusch , Timothy P. Boucher And Steven W. Sekscienski

Abstract: Male Florida box turtles, Terrapene carolina bauri, grow proportionally longer relative to their height and width, than do females, resulting in a longer, flatter carapace, whereas females develop shorter, higher, and slightly narrower carapaces, possibly as an adaptation to accommodate hard-shelled eggs before oviposition. The subspecies has a typical growth pattern for a North American emydine turtle. Growth is rapid in juveniles, but starts to slow once maturity is reached at an age of 12-13 years. Growth rates approach an asymptote at about age 17 years in males and 16 years in females; very little growth occurs after age 20 years. Florida T. c. bauri grows at a slower annual rate than does T. c. carolina from Maryland despite having a longer annual activity and growth period. The data presented here may be considered to represent the average growth pattern for T. c. bauri in Florida. The cervical scute and all vertebral scutes have a greater width:length ratio in juveniles, but this ratio declines as the scutes lengthen with elongation of the carapace; however, the rate of increase in length varies among the scutes

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Please note that as from Volume 31 Number 1 (January 2021) on, the Herpetological Journal will be available as an online publication only - the last print edition will be Volume 30 Number 4.   

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