The Occurrence of domestic dogs (Canis lupus familiaris Linnaeus, 1758) in the trails of arie mata of Santa Genebra, Campinas, São Paulo

Abstract

The introduction of exotic species is currently the second largest cause of extinction. In this sense the domestic dog (Canis lupus familiaris) stands out, given its wide distribution and adaptive plasticity. Understanding the dynamics of dog occurrence in natural areas is of major importance in order to understand the impacts on native fauna. In this work, we aimed to carry out an updated survey of the presence of dogs in the Area of Relevant Ecological Interest Mata of Santa Genebra, focusing on the number of individuals, their periods and areas of greatest activity. Sampling was carried out using camera-traps on nine different trails in the area, with a sampling effort of 2754 camera-days. A total of 316 mammal records were obtained of which 28% documented the presence of dogs. The results point to greater activity of dogs in areas of extensive trails, clearings and forest edge, in addition to the preference for night periods and rainy season. The results were compared with the periods of activity of native non-flying mammals of the area, obtaining a similar occupation of places and periods, both of domestic dogs and native fauna. Finally, proposals were presented to mitigate this problem in the area.

Keywords

• Alien species
• camera-trap
• mammals