Impact of the invasive cane toad (Bufo marinus) on an Australian frog (Opisthodon ornatus) depends on minor variation in reproductive timing

@article{Crossland2008ImpactOT,
  title={Impact of the invasive cane toad (Bufo marinus) on an Australian frog (Opisthodon ornatus) depends on minor variation in reproductive timing},
  author={Michael R. Crossland and Ross A. Alford and Richard Shine},
  journal={Oecologia},
  year={2008},
  volume={158},
  pages={625-632}
}
Invasive species are widely viewed as unmitigated ecological catastrophes, but the reality is more complex. Theoretically, invasive species could have negligible or even positive effects if they sufficiently reduce the intensity of processes regulating native populations. Understanding such mechanisms is crucial to predicting ultimate ecological impacts. We used a mesocosm experiment to quantify the impact of eggs and larvae of the introduced cane toad (Bufo marinus) on fitness-related traits… 

Competing tadpoles: Australian native frogs affect invasive cane toads (Rhinella marina) in natural waterbodies

The results of this field experiment are encouraging for the possibility of using native frogs as one component of an integrated approach to the biological control of cane toads.

Can we use the tadpoles of Australian frogs to reduce recruitment of invasive cane toads

Encouraging the general public to construct and restore waterbodies in peri-urban areas to build up populations of native frogs – especially the much-loved green tree frog Litoria caerulea – could help to reduce recruitment rates of invasive cane toads in Australia.

The Ecological Impact of Invasive Cane Toads (Bufo Marinus) in Australia

  • R. Shine
  • Environmental Science
    The Quarterly Review of Biology
  • 2010
A review of these studies suggests that a single pathwaylethal toxic ingestion of toads by frog-eating predators is the major mechanism of impact, but that the magnitude of impact varies dramatically among predator taxa, as well as through space and time.

Vulnerability of an Australian anuran tadpole assemblage to the toxic eggs of the invasive cane toad (Bufo marinus)

Overall, the data show that cane toad eggs are highly toxic to native anuran tadpoles, but that whether or not a tadpole is killed by encountering toad egg depends upon a complex interaction between thenative anuran's species, its body size, andWhether or not alternative food was present.

Larval interactions with an invasive species (the Cane Toad Rhinella marina) affect life-history traits in an Australian anuran (the Marbled Frog Limnodynastes convexiusculus)

It is shown that the presence of tadpoles of the invasive Cane Toad Rhinella marina causes tadpole of a native frog to metamorphose later and at smaller sizes, which may render frog metamorphs more vulnerable to desiccation and predation, but render them less vulnerable to Canes Toads.

Biotic Resistance to an Alien Amphibian: Larval Competition between Japanese Frogs and Invasive Cane Toads

Encouraging populations of native frogs in toad-invaded areas of Japan thus may help to reduce the numbers of invasive cane toads.

Mechanisms of competition between tadpoles of Australian frogs (Litoria spp.) and invasive cane toads (Rhinella marina).

Re-introducing native anurans to anthropogenically degraded sites (especially those where local frogs previously occurred, but have been lost) may provide a simple and effective way to reduce the recruitment rate of invasive cane toads.

Habitat use of the introduced cane toad (Rhinella marina) and native frog species in tropical Australia

The habitat use of native frog species and the invasive cane toads in tropical northern Australia is investigated to measure overlap in habitat use, and to test if the presence of the cane toad influences frog behaviour.

Competition Between The Tadpoles of Toads Versus Frogs: A Study of Four Japanese Anuran Taxa

Competition within and among species can play a key role in structuring the assemblages of anuran tadpoles. Previous studies have reported that tadpoles of the invasive cane toad (Rhinella marina)

Native White-lipped Frog larvae (Leptodactylus albilabris) outcompete introduced Cane Toad larvae (Rhinella marina) under laboratory conditions.

Adaptations to life in ephemeral habitats may have provided L. albilabris with a competitive advantage over R. marina when their numbers are approximately equal, and further studies are needed to determine if these patterns persist under natural conditions.

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