[1].[J].Asian Herpetological Research,2013,4(3):190-196.[doi:10.3724/SP.J.1245.2013.000190]
 Jian WANG,Haitao SHI*,Shijia HU,et al.Interspecific Differences in Diet between Introduced Red-eared Sliders and Native Turtles in China[J].Asian Herpetological Research(AHR),2013,4(3):190-196.[doi:10.3724/SP.J.1245.2013.000190]
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Asian Herpetological Research[ISSN:2095-0357/CN:51-1735/Q]

卷:
4
期数:
2013年3期
页码:
190-196
栏目:
Original Article
出版日期:
2013-09-25

文章信息/Info

Title:
Interspecific Differences in Diet between Introduced Red-eared Sliders and Native Turtles in China
文章编号:
AHR-2013-0017
Author(s):
Jian WANG134 Haitao SHI2* Shijia HU25 Kai MA2 and Chuang LI2
1 Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu 610041, Sichuan, China
2 College of Life Sciences, Hainan Normal University, Haikou 571158, Hainan, China
3 College of Life Sciences and Technology, Honghe University, Mengzi 661100, Yunnan, China
4 University of Chinese Academy of Sciences, Beijing 100049, China
5 Guangdong Entomological Institute, Guangzhou 510260, Guangdong, China
Keywords:
invasive species food habit Gutian Nature Reserve Trachemys scripta elegans Mauremys sinensis
DOI:
10.3724/SP.J.1245.2013.000190
Abstract:
Although the alien Red-eared slider (Trachemys scripta elegans) is generally argued as an invasive species that competes with native turtles, the field evidence on its diet is controversial. Field studies conducted at the Gutian Nature Reserve of Guangdong and along the Wanquan River in Hainan, China show that T. s. elegans is an opportunitic omnivore, consuming a wide variety of food items. Consumption varies throughout its range; more plant material is consumed in Guangdong, compared to a more carnivorous diet in Hainan; and juveniles are also found to have a more carnivorous diet than adults. This implies a high adaptability to new environment. Sympatric native Mauremys sinensis shows a more herbivorous diet and a narrower niche breadth (0.0260) in Hainan, plus a low niche overlap (0.3048) with T. s. elegans, providing a potential empty niche for the invasive T. s. elegans. Red-eared slider is also known to consume large quantities of native prey species to disrupt the ecological balance. It is imperative to understand the invasive nature of this species and the mechanisms by which it affects native ecology.

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更新日期/Last Update: 2016-01-25