ArticleScientific reports2021
Chemical cues that attract cannibalistic cane toad (Rhinella marina) larvae to vulnerable embryos.
Article in Scientific reports, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.
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Who cites it
4 citing papers in PubMed, 8 citations in OpenAlex.
- Tadpole Skin Secretions, Not Food or Temperature, Mediate Costly Cannibal-Induced Plasticity in Invasive Cane Toad Hatchlings.Ecology and evolution · 2025Article
- Mechanisms, costs, and carry-over effects of cannibal-induced developmental plasticity in invasive cane toads.Ecology and evolution · 2024Article
- A biological invasion reduces rates of cannibalism by Japanese toad tadpoles.Scientific reports · 2023Article
- Choosy cannibals: Targeted consumption of conspecific hatchlings by larval cane toads is triggered by species-specific defensive toxins.Ecology and evolution · 2022Article
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Authors and funding
4 authors at 2 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Chemical cues produced by late-stage embryos of the cane toad (Rhinella marina) attract older conspecific larvae, which are highly cannibalistic and can consume an entire clutch. To clarify the molecular basis of this attraction response, we presented captive tadpoles with components present in toad eggs. As previously reported, attractivity arises from the distinctive toxins (bufadienolides) produced by cane toads, with some toxins (e.g., bufagenins) much stronger attractants than others (e.g., bufotoxins). Extracts of frozen toad parotoid glands (rich in bufagenins) were more attractive than were fresh MeOH extracts of the parotoid secretion (rich in bufotoxins), and purified marinobufagin was more effective than marinobufotoxin. Cardenolide aglycones (e.g., digitoxigenin) were active attractors, whereas C-3 glycosides (e.g., digoxin, oubain) were far less effective. A structure-activity relationship study revealed that tadpole attractant potency strongly correlated with Na
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