Chunxia XU,Xu GAO,Michael R. CROSSLAND,et al.Foraging Responses of the Larvae of Invasive Bullfrogs (Lithobates catesbeianus): Possible Implications for Bullfrog Control and Ecological Impact in China[J].Asian Herpetological Reserch(AHR),2017,8(4):253-261.[doi:10.16373/j.cnki.ahr.170064]
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Foraging Responses of the Larvae of Invasive Bullfrogs (Lithobates catesbeianus): Possible Implications for Bullfrog Control and Ecological Impact in China
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Asian Herpetological Research[ISSN:2095-0357/CN:51-1735/Q]

2017 VoI.8 No.4
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Foraging Responses of the Larvae of Invasive Bullfrogs (Lithobates catesbeianus): Possible Implications for Bullfrog Control and Ecological Impact in China
Chunxia XU12# Xu GAO1# Michael R. CROSSLAND3 Zetian LIU1 Supen WANG1 Wei ZHU1 Richard SHINE3 and Yiming LI12*
1 Key Laboratory of Animal Ecology and Conservation Biology, Institute of Zoology, Chinese Academy of Sciences, Beichen West Road, Chaoyang District, Beijing 100101, China
2 University of Chinese Academy of Sciences, Beijing 100049, China
3 School of Life and Environmental Sciences, University of Sydney, Sydney, NSW 2006, Australia
alien species biocontrol Bufo marinus pheromone Rhinella marina Lithobates catesbeianus tadpole ecology
The predatory behavior of invasive species can affect their ecological impact, and offer opportunities for targeted control. In Australia, tadpoles of invasive cane toads (Rhinella marina) do not consume eggs of native anurans, but are strongly attracted to (and consume) newly-laid eggs of conspecifics; chemical cues from such eggs (or adult secretions) thus can be used to attract toad tadpoles to traps. Do other invasive anurans show similar selectivity? Our laboratory trials on a Chinese population of invasive American bullfrogs (Lithobates catesbeianus) revealed similar behaviors as exhibited by Australian cane toads. Bullfrog tadpoles rarely consumed the eggs of native anurans, but were attracted to both bullfrog eggs and bullfrog skin secretions. Although the attraction response was less intense in bullfrogs than in cane toads, it might nonetheless enable selective removal of bullfrog tadpoles from invaded sites.


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Last Update: 2017-12-25