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

2020 Impact Factor for the Herpetological Journal is 0.862


pdf 02. Body size variation of odorous frogs (Odorrana grahami) across altitudinal gradients

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pp. 187-192
Authors: Li, Shu Ting; Wu, Xue; Li, Da Yong; Lou, Shang Ling; Mi, Zhi Ping & Liao, Wen Bo

Abstract: We used skeletochronology to determine the ages of 249 (93 females, 108 males and 48 juveniles) odorous frogs (Odorrana grahami) from four locations covering an altitudinal span of 1030–1860 m in Sichuan Province, western China. We found distinct lines of arrested growth (LAGs) from excised toe bone for 242 individuals, and each LAG was assumed to represent one year of age. In disagreement with Bergmann's rule, body size of four O. grahami populations did not change clinally along the 830 m altitudinal gradient. Average adult SVL and age differed significantly among populations in females, but not in males. For both sexes, age did not predict body size. When removing the effects of age, we found significant inter-population differences in body size only for males. Post-metamorphic growth rates in males were highest from the lowest altitude, whereas growth rates of females were highest at high altitudes. Our findings suggest that, apart from age, ecological factors such as trophic resources or predation further shape body size differences between populations and sexes.

Keywords: ODOROUS FROG, SKELETOCHRONOLOGY, ALTITUDINAL GRADIENTS, BODY SIZE, AGE

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IMPORTANT NOTE - JUNE 2020

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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