Monitoramento da fauna atropelada na estrada do Puraquequara da cidade de Manaus, Amazonas

Abstract

The issue of the impact of highways is serious, as it fits into a context of natural landscapes that are increasingly fragmented by human action. The main objective of this study was to carry out a survey of vertebrate victims of road kill on the Puraquequara Road, located in the East Zone of Manaus, for this survey were covered 11,279 km per day. The experimental design used follows what was proposed by the Mesh Project. Only animals seen on the road or on its bank during the trip were considered, any other data was considered as eventual. The route of the road was carried out from August 2018 to June 2019, by bicycle, by two observers, with a top speed of 20km / h, starting at 6.30am two days a week. Each runaway animal received a field number, was photographed in the environment that was found, and its location, meeting time, return time and carcass status were systematically documented. Emphasis was placed on mammals, birds, amphibians and reptiles as they are considered the most victimized groups in road accidents. During the collection period, 289 victims were registered, of which 52 were categorized as occasional encounters and 237 systematic encounters. The result indicated that the highest incidence of running over occurred in the Lissamphibia Class with 53% of the records, followed by Reptilia with 33%, and to a lesser extent the Birds with 7% and the Mammalia with 7%. Carcass condition shows a percentage of 57% for old carcasses and 43% for recent carcasses. Another factor observed was the presence of carcasses at the return of the route, for it was observed that 82% (n = 237) were present at the return, 12% (n = 34) were not observed and 6% (n = 18) had removed from the highway, with only the individual's chalk marking present. Regarding the conservation status of the species, although most are of little concern, it is important that mitigation measures are taken, since if this major suppression continues they may disappear from the region and cause a serious ecological imbalance due to the loss of biodiversity in the species. urban fragments of Manaus. Keywords: 1. ecology of roads; 2. Running over; 3. Vertebrates; 4. Hotspots.