Dieta de Thamnodynastes strigatus (Serpentes, colubridae) no sul do Brasil
We analyzed the gut content of 151 speciemens of the colubrid snake Thamnodynastes strigatus from the state of Rio Grande do Sul, southern Brazil. The recorded prey items were anurans (66%; n=33), fish (28.9%; n=14), mammals (4%; n=2), and reptiles (2%; n=1). There was no correlation between the sno...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
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Universidade de São Paulo
2003-01-01
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| Series: | Phyllomedusa: Journal of Herpetology |
| Subjects: | |
| Online Access: | http://www.phyllomedusa.esalq.usp.br/articles/volume2/number1/212734.pdf |
| _version_ | 1818564353054474240 |
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| author | Raquel Ruffato Marcos Di-Bernardo Gleomar Fabiano Maschio |
| author_facet | Raquel Ruffato Marcos Di-Bernardo Gleomar Fabiano Maschio |
| author_sort | Raquel Ruffato |
| collection | DOAJ |
| description | We analyzed the gut content of 151 speciemens of the colubrid snake Thamnodynastes strigatus from the state of Rio Grande do Sul, southern Brazil. The recorded prey items were anurans (66%; n=33), fish (28.9%; n=14), mammals (4%; n=2), and reptiles (2%; n=1). There was no correlation between the snout-vent lenght (SVL) of the snakes and the total lenght (TL) of their prey, but the correlation between the snake SVL and the ratio prey TL/ snake SVL was significant and negative. This negative correlation evidences that T. strigatus does not exclude proportionally small prey items of their diet, and that, proportionally, the biggest prey items was ingested by the smallest snakes. Relatively large prey items are manipulated before ingestion and oriented headfirst, whereas relatively small prey were swallowed head- or tail-first |
| first_indexed | 2024-12-14T01:27:54Z |
| format | Article |
| id | doaj.art-81db43fc7cf34a9cb868a7f5f4b15f41 |
| institution | Directory Open Access Journal |
| issn | 1519-1397 |
| language | English |
| last_indexed | 2024-12-14T01:27:54Z |
| publishDate | 2003-01-01 |
| publisher | Universidade de São Paulo |
| record_format | Article |
| series | Phyllomedusa: Journal of Herpetology |
| spelling | doaj.art-81db43fc7cf34a9cb868a7f5f4b15f412022-12-21T23:22:07ZengUniversidade de São PauloPhyllomedusa: Journal of Herpetology1519-13972003-01-01212734Dieta de Thamnodynastes strigatus (Serpentes, colubridae) no sul do BrasilRaquel RuffatoMarcos Di-BernardoGleomar Fabiano MaschioWe analyzed the gut content of 151 speciemens of the colubrid snake Thamnodynastes strigatus from the state of Rio Grande do Sul, southern Brazil. The recorded prey items were anurans (66%; n=33), fish (28.9%; n=14), mammals (4%; n=2), and reptiles (2%; n=1). There was no correlation between the snout-vent lenght (SVL) of the snakes and the total lenght (TL) of their prey, but the correlation between the snake SVL and the ratio prey TL/ snake SVL was significant and negative. This negative correlation evidences that T. strigatus does not exclude proportionally small prey items of their diet, and that, proportionally, the biggest prey items was ingested by the smallest snakes. Relatively large prey items are manipulated before ingestion and oriented headfirst, whereas relatively small prey were swallowed head- or tail-firsthttp://www.phyllomedusa.esalq.usp.br/articles/volume2/number1/212734.pdfSquamataSerpentesColubridaeThamnodynastes strigatusdietSouthern Brazil |
| spellingShingle | Raquel Ruffato Marcos Di-Bernardo Gleomar Fabiano Maschio Dieta de Thamnodynastes strigatus (Serpentes, colubridae) no sul do Brasil Phyllomedusa: Journal of Herpetology Squamata Serpentes Colubridae Thamnodynastes strigatus diet Southern Brazil |
| title | Dieta de Thamnodynastes strigatus (Serpentes, colubridae) no sul do Brasil |
| title_full | Dieta de Thamnodynastes strigatus (Serpentes, colubridae) no sul do Brasil |
| title_fullStr | Dieta de Thamnodynastes strigatus (Serpentes, colubridae) no sul do Brasil |
| title_full_unstemmed | Dieta de Thamnodynastes strigatus (Serpentes, colubridae) no sul do Brasil |
| title_short | Dieta de Thamnodynastes strigatus (Serpentes, colubridae) no sul do Brasil |
| title_sort | dieta de thamnodynastes strigatus serpentes colubridae no sul do brasil |
| topic | Squamata Serpentes Colubridae Thamnodynastes strigatus diet Southern Brazil |
| url | http://www.phyllomedusa.esalq.usp.br/articles/volume2/number1/212734.pdf |
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