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Issue:ISSN 1000-7083
          CN 51-1193/Q
Director:Sichuan Association for Science and Technology
Sponsored by:Sichuan Society of Zoologists; Chengdu Giant Panda Breeding Research Foundation; Sichuan Association of Wildlife Conservation; Sichuan University
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Your Position :Home->Past Journals Catalog->2013 Vol.32 No.6

Comparisons on the Competitive Ability for Food between Trachemys scripta elegans and Mauremys sinensis
Author of the article:ZHAO Longhui1, LI Jie1, WEI Chaojun3, WANG Jichao1*, HONG Meiling1, SHI Haitao1,2*
Author's Workplace:(1. College of Life Sciences, Hainan Normal University, Haikou 571158, China; 2. Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu 610041, China; 3. Institute of hydrobiology, Chinese Academy of Sciences, Wuhan 430072, China)
Key Words:Trachemys scripta elegans; Mauremys sinensis; competition for food; frequency
Abstract:

The red-eared slider turtle (Trachemys scripta elegans) is a highly invasive species in worldwide, and several wild populations have been successfully established in China. To compare the competitive ability for food between T. s. elegans and Chinese strip-necked turtle (Mauremys sinensis) whose habitat was similar to the red-eared slider turtle in the wild, we designed three competitive experiments including one to one, three to three and equal competition experiment. The results showed that the total amount and frequency of food intake of T. s. elegans was significantly higher than M. sinensis in the experiments of “one to one ”and “three to three” (P<0.01). Additionally, the frequency of touching food firstly and getting food finally of T. s. elegans was also significantly higher than M. sinensis (P<0.01). However, no significant difference was observed in the experiment of equal confrontation (P>0.05). Moreover, the aggressive behaviors were mainly started by red-eared sliders (P<0.05). Therefore, we concluded that the performances of T. s. elegans were better than M. sinensis in reaction, aggression and competitive ability for food.

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