Exploiting intraspecific competitive mechanisms to control invasive cane toads (Rhinella marina)

Crossland, Michael R., Haramura, Takashi, Salim, Angela A., Capon, Robert J. and Shine, Richard (2012) Exploiting intraspecific competitive mechanisms to control invasive cane toads (Rhinella marina). Proceedings of the Royal Society B-Biological Sciences, 279 1742: 3436-3442. doi:10.1098/rspb.2012.0821

Author Crossland, Michael R.
Haramura, Takashi
Salim, Angela A.
Capon, Robert J.
Shine, Richard
Title Exploiting intraspecific competitive mechanisms to control invasive cane toads (Rhinella marina)
Journal name Proceedings of the Royal Society B-Biological Sciences   Check publisher's open access policy
ISSN 0962-8452
Publication date 2012-09
Sub-type Article (original research)
DOI 10.1098/rspb.2012.0821
Volume 279
Issue 1742
Start page 3436
End page 3442
Total pages 7
Place of publication London, United Kingdom
Publisher The Royal Society
Collection year 2013
Language eng
Abstract If invasive species use chemical weapons to suppress the viability of conspecifics, we may be able to exploit those species-specific chemical cues for selective control of the invader. Cane toads (Rhinella marina) are spreading through tropical Australia, with negative effects on native species. The tadpoles of cane toads eliminate intraspecific competitors by locating and consuming newly laid eggs. Our laboratory trials show that tadpoles find those eggs by searching for the powerful bufadienolide toxins (especially, bufogenins) that toads use to deter predators. Using those toxins as bait, funnel-traps placed in natural waterbodies achieved near-complete eradication of cane toad tadpoles with minimal collateral damage (because most native (non-target) species are repelled by the toads' toxins). More generally, communication systems that have evolved for intraspecific conflict provide novel opportunities for invasive-species control.
Keyword Alien species
Anuran larvae
Bufo marinus
Wildlife management
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status UQ
Additional Notes Published online before print: 13 June 13 2012.

Document type: Journal Article
Sub-type: Article (original research)
Collections: Official 2013 Collection
Institute for Molecular Bioscience - Publications
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