Xenohyla truncata (Izecksohn, 1959)
Izecksohn's Brazilian Treefrog
Distribution and Habitat
Life History, Abundance, Activity, and Special Behaviors
Trends and Threats
Their unique and novel ecological role feeding on the Brazilian milk fruit tree highlights the importance of fundamental natural history information for this endemic tree frog species. Likely with rapidly disappearing Restinga habitat in Brazil it is feared that we may lose this frog species and a unique amphibian-plant interaction (de-Oliveira-Nogueira et al 2023).
Possible reasons for amphibian decline
General habitat alteration and loss
De-Oliveira-Nogueira et al (2023) reports a new behavior and relationship between an amphibian and plant: the South American tree frog Xenohyla truncata has been observed feeding on nectar and flowers of the Brazilian milk fruit tree Cordia taguahyensis. The flower structure of this tree species allows the frog to enter and exit the flower easily. During their feeding activity, the pollen grains adhere to the frog’s back and are transported to other flowers while visiting them. Based on this observation, the authors suggest that X. truncata is not only a seed disperser, but also a potential pollinator of C. taguahyensis, or even of other plant species with similar floral structure. This finding is a unique and novel natural history behavior and highlights the importance of fundamental natural history information for this endemic tree frog species, which exclusively lives in the rapidly disappearing Restinga habitat on the coast of Rio de Janeiro in Brazil. With expanding development and habitat destruction, it is feared that losing this frog species, currently threatened with extinction, also means the extinction of a unique amphibian-plant interaction, especially important as it is a first known for a frog. Thus, conservation of this tree frog species has heightened stakes. (Umi Arifin)
de-Oliveira-Nogueira CH, Ferreira Souza U, Mendes Machado T, Figueiredo-de-Andrade CA, Mônico AT, Ivan Sazima I, Sazima M, Toledo LF (2023). "Between fruits, flowers and nectar: The extraordinary diet of the frog Xenohyla truncata." Food Webs, 35(e00281). [link]
Originally submitted by: Michelle S. Koo (2023-05-28)
Distribution by: Michelle S. Koo (updated 2023-05-28)
Life history by: Michelle S. Koo (updated 2023-05-28)
Trends and threats by: Michelle S. Koo (updated 2023-05-28)
Comments by: Michelle S. Koo (updated 2023-05-28)
Edited by: Michelle S. Koo (2023-05-30)
Species Account Citation: AmphibiaWeb 2023 Xenohyla truncata: Izecksohn's Brazilian Treefrog <https://amphibiaweb.org/species/981> University of California, Berkeley, CA, USA. Accessed Sep 28, 2023.
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Citation: AmphibiaWeb. 2023. <https://amphibiaweb.org> University of California, Berkeley, CA, USA. Accessed 28 Sep 2023.
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