IUCN / SSC Cat Specialist Group - Digital Cat Library |
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| Gaspar, D.d.A. | |
| Comunidade de mam¡feros nÆo-voadores de um fragmento de floresta Atlƒntica semidec¡dua do munic¡pio de Campinas, SP | |
| 2005 Full Book | |
The population richness, composition, abundance and density of non-volant mammals of mata RibeirÆo Cachoeira forest, a 230 ha semideciduous forest fragment in the outskirts of Campinas, SÆo Paulo, were studied between 2001 and 2003. The main objective was to evaluate the importance of this forest fragment to the local and regional conservation of the native mammals. The small mammals were trapped over 17 months using live-traps on the ground, understory and canopy. The small mammals community comprised of 10 species. Large and midsize mammals were studied using visual census over 12 months in linear transects during the day, totaled 271 km. Direct observation, camera traps and indirect signs such as footprints, droppings, tree and ground scratches, vocal display and interviews with local residents were used to indicate their presence. A total of 23 species of large and midsize mammals were recorded using all sampling methods. Eleven species of carnivores incl. puma, _Puma concolor_; ocelot, _Leopardus pardalis_; jaguarundi, _Herpailurus yagouaroundi_; margay, _Leopardus wiedii_. Domestic dogs were frequent in the forest and they were recorded in all methods. Howler monkeys were the most common mammals (103 observations) in the visual transects. Opossums (60%) and crab-eating fox (20%) had the highest presence recorded in the footprints. Herbivore-omnivorous species were significantly more present in the banana baits while carnivorous were more present in the odour baits. Twelve species were photographed with the camera traps. Carnivores had the highest number of records. Two young and one adult puma were photographed three times over a 16-month period. The RibeirÆo Cachoeira forest fragment showed high diversity of small, midsize and large mammals. Eight species are threatened and three are probably threatened of extinction in the SÆo Paulo state. This study revealed the biological value and importance of this forest fragment which highlights the need for actions to ensure its biological viability in a medium term. The implementation of wildlife corridors, by gallery forests restoration, to network RibeirÆo Cachoeira with other similar forest fragments will guarantee the genetic diversity and hopefully it will decrease the risk of extinction of local populations. |
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