Does a Frog Change its Diet along a Successional Forest Gradient? The Case of the Shovel-Nosed Treefrog (Diaglena spatulata) in a Tropical Dry Forest in Western Mexico
| Autor: | Javier Alvarado-Díaz, Héctor Hugo Siliceo-Cantero, Ireri Suazo-Ortuño, Alejandro Ordoñez-Ifarraguerri |
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| Rok vydání: | 2017 |
| Předmět: |
0106 biological sciences
Tropical and subtropical dry broadleaf forests geography geography.geographical_feature_category biology business.industry Ecology Orthoptera 010607 zoology Vegetation Old-growth forest biology.organism_classification 010603 evolutionary biology 01 natural sciences Pasture Predation Lepidoptera genitalia Agriculture Animal Science and Zoology business Ecology Evolution Behavior and Systematics |
| Zdroj: | Journal of Herpetology. 51:411-416 |
| ISSN: | 0022-1511 |
| DOI: | 10.1670/16-024 |
| Popis: | Biologists have increasingly recognized the importance of secondary forests as facilitators of passive landscape restoration and recovery of faunal communities in landscapes fragmented by farming. To evaluate the role of secondary forests as providers of food resources for anurans, we studied the diet of the Shovel-Nosed Treefrog (Diaglena spatulata) from five vegetation stages of tropical dry forest (pasture, early forest, young forest, intermediate forest, and old-growth forest) on the coast of Jalisco, Mexico. We examined the stomach content of 97 individuals using a stomach-flushing method. We found 14 different types of prey (Class or Order) in the frog's diet. Araneae, Lepidoptera, and Orthoptera occurred in frogs from all five vegetation stages. We recorded the highest number of prey types (11) in the young and intermediate forest stages, and the highest prey volume and prey frequency in stomachs from frogs inhabiting the old-growth forest. We found no difference in size or body condition ... |
| Databáze: | OpenAIRE |
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