Variation in feeding ecology of five cnemidophorine lizard species along Brazilian eastern coast
Feeding ecology of a particular species is associated to population dynamics and contributes for the understanding of natural history and trophic interactions in ecosystems. We investigated changes in the feeding habits of 16 populations belonging to five cnemidophorine lizard species (being four bi...
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| Autores principales: | , , , |
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| Formato: | Articulo |
| Lenguaje: | Inglés |
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2021
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| Acceso en línea: | http://sedici.unlp.edu.ar/handle/10915/120234 https://ppct.caicyt.gov.ar/index.php/cuadherpetol/article/view/17927 |
| Aporte de: |
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I19-R120-10915-120234 |
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dspace |
| institution |
Universidad Nacional de La Plata |
| institution_str |
I-19 |
| repository_str |
R-120 |
| collection |
SEDICI (UNLP) |
| language |
Inglés |
| topic |
Zoología Diet Restinga Teiidae Whiptail lizard Sand dune |
| spellingShingle |
Zoología Diet Restinga Teiidae Whiptail lizard Sand dune Menezes, Vanderlaine A. Amaral, Vanessa Souza, Viviane V. Rocha, Carlos F. D. Variation in feeding ecology of five cnemidophorine lizard species along Brazilian eastern coast |
| topic_facet |
Zoología Diet Restinga Teiidae Whiptail lizard Sand dune |
| description |
Feeding ecology of a particular species is associated to population dynamics and contributes for the understanding of natural history and trophic interactions in ecosystems. We investigated changes in the feeding habits of 16 populations belonging to five cnemidophorine lizard species (being four bisexual and one unisexual) along approximately 4000 km extension of the Brazilian eastern coast. Fieldwork was carried out in 15 areas of restinga habitats and for each cnemidophorine population, the composition of the diet was analyzed based on the number, volume (mm3) and frequency of each prey category or plant material.The arthropods were categorized in the taxonomic level of Order or Family (e.g.Formicidae). Cnemidophorine populations/species studied were mainly carnivorous and had, in general, a diet consisting predominantly of larvae and/or termites, with few instances of plant material consumption. The availability of termites locally at each restinga habitat was not a determinant factor in the increase of termite consumption by the local cnemodophorine population. However, differences in diet composition among populations partially resulted from differential consumption of termites, leading to the formation of two distinct groups depending on higher or lesser consumption of termites. Some populations had onthonegetic variation in diet, but males and females of different populations/species tended to have similar diet composition. The head width of lizards affected significantly the volume and the length of the largest prey ingested in 60% (3/5) of the species studied, indicating that adults tended to consume larger food items compared to coespecifics juveniles. The high level of importance of termites and larvae in almost all populations/species probably contributed to the low intra-and interspecific differences in food habit. The diet of cnemidophorine species studied in restinga habitats in general, tended to be similar to that found to other cnemidophorines, regardless its geographic distribution. Invertebrates were the dominant prey on cnemidophorines diet, but predation on vertebrates was also registered. |
| format |
Articulo Articulo |
| author |
Menezes, Vanderlaine A. Amaral, Vanessa Souza, Viviane V. Rocha, Carlos F. D. |
| author_facet |
Menezes, Vanderlaine A. Amaral, Vanessa Souza, Viviane V. Rocha, Carlos F. D. |
| author_sort |
Menezes, Vanderlaine A. |
| title |
Variation in feeding ecology of five cnemidophorine lizard species along Brazilian eastern coast |
| title_short |
Variation in feeding ecology of five cnemidophorine lizard species along Brazilian eastern coast |
| title_full |
Variation in feeding ecology of five cnemidophorine lizard species along Brazilian eastern coast |
| title_fullStr |
Variation in feeding ecology of five cnemidophorine lizard species along Brazilian eastern coast |
| title_full_unstemmed |
Variation in feeding ecology of five cnemidophorine lizard species along Brazilian eastern coast |
| title_sort |
variation in feeding ecology of five cnemidophorine lizard species along brazilian eastern coast |
| publishDate |
2021 |
| url |
http://sedici.unlp.edu.ar/handle/10915/120234 https://ppct.caicyt.gov.ar/index.php/cuadherpetol/article/view/17927 |
| work_keys_str_mv |
AT menezesvanderlainea variationinfeedingecologyoffivecnemidophorinelizardspeciesalongbrazilianeasterncoast AT amaralvanessa variationinfeedingecologyoffivecnemidophorinelizardspeciesalongbrazilianeasterncoast AT souzavivianev variationinfeedingecologyoffivecnemidophorinelizardspeciesalongbrazilianeasterncoast AT rochacarlosfd variationinfeedingecologyoffivecnemidophorinelizardspeciesalongbrazilianeasterncoast |
| bdutipo_str |
Repositorios |
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1764820449544372226 |