Journal of Guangxi Normal University(Natural Science Edition) ›› 2022, Vol. 40 ›› Issue (6): 215-221.doi: 10.16088/j.issn.1001-6600.2021042702

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Comparison of Selected Body Temperatures and Running Ability Between Captive-bred and Wild Shinisaurus crocodilurus

ZHANG Tongwei1,2#, CHENG Rui1,2#, WU Zhengjun1,2*, HE Mingxian1,2, ZHONG Chunying1,2   

  1. 1. Key Laboratory of Ecology of Rare and Endangered Species and Environmental Protection (Guangxi Normal University),Ministry of Education, Guilin Guangxi 541006, China;
    2. Guangxi Key Laboratory of Rare and Endangered Animal Ecology (Guangxi Normal University), Guilin Guangxi 541006, China
  • Received:2021-04-27 Revised:2021-06-15 Online:2022-11-25 Published:2023-01-17

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Abstract: In order to investigate the difference between the selected body temperature (Tsel) and locomotor ability of field Shinisaurus crocodilurus and captive-bred S. crocodilurus,the selected body temperature and locomotor ability of captive-bred S. crocodilurus and field S. crocodilurus were measured under experimental conditions. It was found that there was no significant difference between the selected body temperature of field and captive-bred S. crocodilurus and there was no significant correlation between the selected body temperature of each sample and its sex, body weight and body length. Artificial breeding resulted in a decrease in the locomotor ability of S. crocodilurus, and the instantaneous running speed of wild S. crocodilurus (1.098±0.167 m/s) was significantly higher than that of artificially bred S. crocodilurus (0.842±0.186 m/s) (P<0.001), and the sex factor had no significant effect on the instantaneous running speed of S. crocodilurus. The designed captive-breed habitat remained essentially the same as that of the field S. crocodilurus, resulting in no significant change in selected body temperature between the two. The relatively small feeding space, low threat of natural enemies and artificial feeding practices may be the main reasons for the reduced motility of captive S. crocodilurus. To enable captive-bred S. crocodilurus to adapt to the field environment later on, it’s necessary to incerease the training of their locomotor ability in the captive breeding process.

Key words: Shinisaurus crocodilurus, artificial propagation, wild population, selected body temperature, reintroduction

CLC Number: 

  • S865
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