[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]


Asian Herpetological Research[ISSN:2095-0357/CN:51-1735/Q]

Original Article


Interspecific Differences in Diet between Introduced Red-eared Sliders and Native Turtles in China
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
invasive species food habit Gutian Nature Reserve Trachemys scripta elegans Mauremys sinensis
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.


Bjorndal K. A. 1991. Diet mixing: Nonadditive interactions of diet items in an omnivorous fresh-water turtle. Ecology, 72: 1234–1241
Cadi A., Joly P. 2003. Impact of the introduction of the red-eared slider (Trachemys scripta elegans) on survival rates of the European pond turtle (Emys orbicularis). Biodiv Conser, 13: 2511–2518
Chen T. H. 2006. Distribution and status of the introduced red-eared slider (Trachemys scripta elegans ) in Taiwan. In Koike F., Clout M. N., Kawamichi M., De Poorter M., Iwatsuki K. (Eds), Assessment and Control of Biological Invasion Risks. Kyoto: Shoukadoh Booksellers, 187–195
Chen T. H., Lue K .Y. 1998a. Ecological notes on feral populations of Trachemys scripta elegans in northern Taiwan. Chelonian Conser Biol, 3(1): 87–90
Chen T. H., Lue K. Y. 1998b. Ecology of the Chinese stripe-necked turtle, Ocadia sinensis (Testudines: Emydidae), in the Keelung River, northern Taiwan. Copeia, 1998: 944–952
Chen T. H., Lue K. Y. 1999. Food habits of the Chinese stripenecked turtle, Ocadia sinensis, in the Keelung River, northern Taiwan. J Herpetol, 33: 463–471
Chen T. H., Lue K. Y. 2008. Home ranges and movements of the Chinese stripe-necked turtle (Ocadia sinensis) in the Keelung River, northern Taiwan. Amphibia-Reptilia, 29: 383–392
Chen T. H., Lue K. Y. 2009. Changes in population structure and diet of the Chinese stripe-necked turtle (Mauremys sinensis) inhabiting a disturbed river in northern Taiwan. Zool Studies, 48: 95–105
Chen T. H., Lue K. Y. 2010. Population status and distribution of freshwater turtles in Taiwan. Oryx, 44(2): 261–266
Elton C. S. 1958. The ecology of invasions by animals and plants. London: Methuen Publishing, 196 pp
Gause G. F. 1934. The struggle for existence. Baltimore: Williams and Wilkins Company, 188 pp
Feldman C. R., Parham J. F. 2004. Molecular systematics of Old World stripe-necked turtles (Testudines: Mauremys). Asiatic Herpetol Res, 10: 28–37
Gibbons J. W. 1990. Life history and ecology of the slider turtle. Washington DC: Smithsonian Institution Press, 368 pp
Global Invasive Species Database. 2011. Trachemys scripta elegans (reptile). Retrieved from http://www.issg.org/database/species/distribution.asp?si=71&fr=1&sts=sss&lang=EN
Hart D. R. 1983. Dietary and habitat shift with size of red-eared turtles (Pseudemys scripta) in a southern Louisiana population. Herpetologica, 39: 285–290
Lau M., Shi H. T. 2000. Conservation and trade of terrestrial and freshwater turtles and tortoises in the People’s Republic of China. In van Dijk P. P., Stuart B. L., Rhodin A. G. J. (Eds), Proc Workshop Conser Trade of Freshwater Turtles and Tortoises in Asia. Chelon Res Monogr, 2: 30–38
Lee H. J., Park D. 2010. Distribution, habitat characteristics, and diet of freshwater turtles in the surrounding area of the Seomjin River and Nam River in southern Korea. J Ecol Field Biol, 33(3): 237–244
Levins R. 1968. Evolution in changing environments: Some theoretical explorations. Princeton, New Jersey: Princeton University Press, 120 pp
Liu D., Shi H. T., Liu Y. X., Wang J. C., Gong S. P., Wang J., Shen L. 2011. Investigation on the distribution of Red-eared sliders in China. Bull Biol, 46(6): 18–21 (In Chinese)
Louda S. M., Rand T. A., Kula A. A. R., Arnett A. E., West N. M., Tenhumberg B. 2011. Priority resource access mediates competitive intensity between an invasive weevil and native floral herbivores. Biol Invasions, 13(10): 2233–2248
Lu M., Wingfield M. J., Gillette N. E., Mori S. R., Sun J. H. 2010. Complex interactions among host pines and fungi vectored by an invasive bark beetle. New Phytol, 187: 859–866
Masaya T., Teruo D. 1994. Comparative analyses on food habits of Japanese marten, Siberian weasel and leopard cat in the Tsushima Islands, Japan. Ecol Res, 9(1): 99–107
Parmenter R. P., Avery H. W. 1990. The feeding ecology of the slider turtle. In Gibbons J. W. (Ed), Life History and Ecology of the Slider Turtle. Washington DC: Smithsonian Institution Press. 257–266
Pianka E. R. 1973. The structure of lizard communities. Annu Rev Ecol Syst, 4: 53–74
Pillips B. R., Winchell C. S., Schmidt R. H. 2007. Dietary overlap of an alien and native carnivore on San Clemente Island, California. J Mammal, 88(1): 173–180
Polo-Cavia N., Lopez P., Martin J. 2010. Aggressive interactions during feeding between native and invasive freshwater turtles. Biol Invasions, 13: 1387–1396
Prevot-Julliard A. C., Gousset E., Archinard C., Cadi A., Girondot M. 2007. Pets and invasion risks: Is the slider turtle strictly carnivorous? Amphibia-Reptilia, 28: 139–143
Shi H. T. 2008. Identification Manual for Traded Turtles in China. Beijing: Encyclopedia of China Publishing House, 166 pp (In Chinese)
Shi H. T., Parham J. F., Fan Z. Y., Hong M. L., Yin F. 2008. Evidence for the massive scale of turtle farming in China. Oryx, 42(1): 147–150
Spinks P. Q., Shaffer H. B., Iverson J. B., McCord W. P. 2004. Phylogenetic hypotheses for the turtle family Geoemydidae. Mol Phylogenet Evol, 32: 164–182

更新日期/Last Update: 2016-01-25