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H Heusser1

  • 1Zoologisches Museum der Universität Zürich, Zürich, Deustchland.

Oecologia
|March 18, 2017
PubMed
Summary
This summary is machine-generated.

Common frog (Rana temporaria) tadpoles exhibit cannibalism and prey on other European anurans. Early breeding by Rana temporaria influences anuran community structure by suppressing later-breeding species in shared habitats.

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Area of Science:

  • Ecology
  • Zoology
  • Evolutionary Biology

Context:

  • The study investigates predator-prey dynamics within European anuran communities.
  • Focuses on the feeding behavior of Rana temporaria tadpoles on the spawn of sympatric species.

Purpose:

  • To analyze the impact of Rana temporaria tadpoles as predators on the reproductive success of other European anuran species.
  • To understand how breeding times and biotope preferences influence species interactions and community structure.

Summary:

  • Rana temporaria tadpoles consume spawn from various sympatric anurans, including conspecifics (cannibalism).
  • Rana temporaria's explosive, early breeding strategy exerts selection pressure, leading to the suppression of later-breeding species in shallow water habitats.
  • Species with later breeding times or those spawning in deeper water (e.g., Rana esculenta, Rana ridibunda, Bufo bufo) are less affected by Rana temporaria predation.

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Impact:

  • Provides insights into niche partitioning and competitive exclusion mechanisms in amphibian communities.
  • Demonstrates how phenological differences (breeding times) can shape species distribution and coexistence.
  • Highlights the ecological role of Rana temporaria tadpoles in structuring anuran populations and habitats.