Dieta de gatos domésticos semi e não-domiciliados em um fragmento urbano de Floresta Atlântica no Nordeste do Brasil
The domestic cat (Felis catus) are widely distributed around the the world. In most locations, it represents an exotic and invasive species that adapts very well to a range of conditions. In this way, it can act as a strong predator and sometimes generate imbalance in populations of native fauna. Th...
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| Formato: | bachelorThesis |
| Idioma: | pt_BR |
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Universidade Federal do Rio Grande do Norte
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| Endereço do item: | https://repositorio.ufrn.br/handle/123456789/43312 |
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| Resumo: | The domestic cat (Felis catus) are widely distributed around the the world. In most locations, it represents an exotic and invasive species that adapts very well to a range of conditions. In this way, it can act as a strong predator and sometimes generate imbalance in populations of native fauna. The objective of this work was to characterize a diet of a group of free-ranging and semi-domestic felines to find out the impact they exert over small vertabrates and invertebrates on a fragment of Atlantic Rain Forest located at campus of the Federal University of Rio Grande do Norte, in Rio Grande do Norte, Northeast of Brazil. In that area 105 felines were registered, most of them male (64 individuals), including residents and visitors. The characterization of the diet was carried out by analyzing traces of prey in 70 feces samples, collected between January and March 2017. The hair samples, the most important trace to identifier small mammals, were submitted to the technique proposed by Quadros and Monteiro-Filho (2006), which allows the identification of species through observation of cuticle and marrow patterns. Other important traces to other taxons, such as scales, nails, and exoskeletons were identified using the scientific collection or by experts, whenever possible. The frequencies and percentages of occurrence of all items were calculated. It was observed that 83% of the samples had some trace of predation, indicating a strong predatory habit in this group of felines. The mammals were most consumed taxonomic group, being the hair of Didelphis albiventris Lund the most abundant trace. The results of the presente research contribute to reduce the scarcity of data concerning to the impacts of the introdution of exotic carnivores on urban fragments neotropical environments and demonstrate the need to adopt populations control techniques to also to decrease the abandoment rate, which is the decisive fator for the presense of F. catus populations in natural environmets. |
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