Please use this identifier to cite or link to this item: https://repositorio.inpa.gov.br/handle/1/15571
Title: Food habits of Rhinella proboscidea (Anura: Bufonidae) in terra firme forests of central Amazonia
Authors: Borges, Alice Cristina Rodrigues
Santos, Talitha Ferreira dos
Frazão, Luciana
Marques-Souza, Sergio
Menin, Marcelo
Keywords: Ant
Chemical Composition
Food
Frog
Generalist
Identification Key
Niche Breadth
Stomach Content
Toad
Trophic Environment
Amazonas
Amazonia
Brasil
Manaus
Sao Paulo [brazil]
Sao Sebastiao
Acari
Amphibia
Anura
Araneae
Atta
Bufonidae
Coleoptera
Collembola
Dermaptera
Diptera
Formicidae
Hemiptera
Hymenoptera
Invertebrata
Isoptera
Myrmicinae
Nematoda
Orthoptera
Issue Date: 2019
metadata.dc.publisher.journal: Phyllomedusa
metadata.dc.relation.ispartof: Volume 18, Número 1, Pags. 37-45
Abstract: Anuran species are considered generalist and opportunist feeders. However, some species have dietary specializations. Here we describe the diet composition of Rhinella proboscidea based on the stomach content of 29 individuals captured in terra firme forests in Manaus and São Sebastião do Uatumã, state of Amazonas, Brazil. Each prey item was measured and identified to Order, Suborder or Family; ants were identified to Genus. We determined and tested for differences in the trophic niche breadth and the relationships between the frog size and the volume of the largest prey item. We recorded 1614 prey items of 44 taxa. Hymenoptera was the most abundant Order followed by Isoptera, Acari, Coleoptera, Orthoptera, Araneae, Hemiptera, Dermaptera, Diptera, and Collembola. Formicidae comprised 46.56% of the all stomach items and was represented by six subfamilies and 22 genera. Additionally, we found 80 nematodes in a total of 18 frogs. There was a significant difference in the trophic niche breadths of the study areas, and a positive relationship between the toad size and volume of the largest prey item consumed. Rhinella proboscidea feeds on a variety of invertebrates, with ants, termites, and mites being the most abundant; this suggests that the toad is an active forager. The most common subfamily was Myrmicinae primarily represented by Crematogaster and Atta. Differences in trophic niche breadths of the study areas may be related to seasonal differences in the diet composition or local factors. © 2019 ESALQ Universidade de Sao Paolo. All rights reserved.
metadata.dc.identifier.doi: 10.11606/issn.2316-9079.v18i1p37-46
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