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YU Qing, CHEN Hui, ZHAO Wen-ge, LIU Peng*
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Abstract: A total of 130 specimens from twoRana chensinensispopulations were collected in this study, with the Zhengzhou population (Henan Province) being the southern part of the range and the Zhalantun population (Inner Mongolia) being the northern part of the range. Female fecundity and 26 morphological characters in males and females were measured to examine geographical variation of different populations. The results showed that females were significantly larger than males. The body size of Zhalantun population was significantly larger than that of Zhengzhoupopulation, which is in accordance with Bergman’s rule. However, the length of the limbs was also larger in the cold climate that does not conform to Allen’s rule. Sexual size dimorphism inR. chensinensis did not obey Rensch’s rule. Females should be more sensitive to environmental changes because they could grow faster than males in snout-vent length and weight which ensures their greater reproductive success. The different variation trends in body sizes between females and males across different environment imply the substantial differences in their adaptationstrategies, which should be the main reason for geographic variation in morphologicalcharacteristics and female fecundity across different populations.
Key words: dummy variables, stand carbon storage, simultaneous equations, larch plantation
YU Qing, CHEN Hui, ZHAO Wen-ge, LIU Peng. Geographic variation of morphological characteristics and female fecundity in different populations ofRana chensinensis.[J]. cje.
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URL: https://www.cje.net.cn/EN/abstract/abstract23074.shtml
https://www.cje.net.cn/EN/Y2018/V37/I2/446