Sexual size dimorphism and its allometry in Chinese lizards
| Autor: | Lei Shi, Changhu Lu, Tao Liang, Godfred Bempah |
|---|---|
| Rok vydání: | 2021 |
| Předmět: |
0106 biological sciences
0301 basic medicine Avian clutch size Lizard Zoology Biology Agamidae biology.organism_classification 010603 evolutionary biology 01 natural sciences Sexual dimorphism 03 medical and health sciences 030104 developmental biology Animal ecology biology.animal Fecundity selection Allometry Ecology Evolution Behavior and Systematics |
| Zdroj: | Evolutionary Ecology. 35:323-335 |
| ISSN: | 1573-8477 0269-7653 |
| DOI: | 10.1007/s10682-021-10104-1 |
| Popis: | Rensch's rule is an allometric rule on sexual size dimorphism. It states that in small-sized species, females are larger than males, whereas in larger species, males are relatively larger than females. Several studies have explored this pattern, and its inverse in lizard species. China has a unique and high diversity of species, with a variety of ecological systems which shape diversity of phenotypes. In this study, sexual size dimorphism and Rensch’s rule were determined using a dataset of Chinese lizard species. The findings show that Chinese lizards generally exhibit female-biased sexual size dimorphism. In addition, clutch size was positively correlated with sexual size dimorphism. Agamidae species were the only taxa that followed Rensch’s rule (slope of males against females was steeper than 1). Clutch size was correlated with sexual size dimorphism in groups that do not follow Rensch's rule. This finding implies that strong fecundity selection limits application of Rensch's rule in these groups. |
| Databáze: | OpenAIRE |
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