Feng XU,Gregory H. ADLER and Yiming LI.Covariation in Insular Life-history Traits of the Rice Frog (Fejervarya limnocharis) in Eastern China[J].Asian Herpetological Research(AHR),2013,4(1):28-35.[doi:10.3724/SP.J.1245.2013.00028]
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Covariation in Insular Life-history Traits of the Rice Frog (Fejervarya limnocharis) in Eastern China
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Asian Herpetological Research[ISSN:2095-0357/CN:51-1735/Q]

2013 VoI.4 No.1
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Original Article
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Covariation in Insular Life-history Traits of the Rice Frog (Fejervarya limnocharis) in Eastern China
Feng XU1 2 Gregory H. ADLER3 and Yiming LI1*
1 Key Laboratory of Animal Ecology and Conservation Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing 100101, China
2 Key Laboratory of Biogeography and Bioresource in Arid Land, Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Urumqi 830011, Xinjiang, China
3 Department of Biology and Microbiology, University of Wisconsin - Oshkosh, Oshkosh, WI 54901, USA
island syndrome life-history traits trade-off body size egg size clutch size reproductive effort
Although shifts in life-history traits of insular vertebrates, as compared with mainland populations, have been observed in many taxa, few studies have examined the relationships among individual life-history traits on islands. Life-history theory also predicts that there is a trade-off between body size and reproductive effort, and between egg size and clutch size. We surveyed the rice frog, Fejervarya limnocharis, on 20 islands within the Zhoushan Archipelago and two nearby sites on the mainland of China to compare differences in life-history traits and to explore relationships among those traits. Rice frog females reached a greater body size on half of the smaller islands among the total 20 surveyed islands, and larger egg size, decreased clutch size and reduced reproductive effort on most of the islands when compared to the two mainland sites. Insular body size was negatively correlated with reproductive effort. There was a negative correlation between egg size and clutch size. Results suggest that life-history theory provides a good explanation for co-variation between body size and reproductive effort, and between egg size and clutch size in rice frogs on the islands.


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