Estimativas e Identificação de áreas de Agregação de Vertebrados Silvestres atropelados no entorno de uma unidade de conservação no Nordeste do Brasil.

Abstract

The fragmentation of the habitat caused by human activity has been a major challenge for the conservation biology, it increase the risk of the extinction of natural populations. However, the lack of planning of the Brazilian roads result in expressive impacts on biodiversity. The intensity traffic in the roads cause direct impacts in wildlife, in particular, mortality by collisions with vehicle and behavioral changes. The survey was realized in a stretch of two roads, BR -101 and PB-071, that involves the area of Guaribas Biological Reserve, one of the most important protect areas in Northeast from Brazil. These roads had been monitored since March 2010 to March 2012 and were found 598 wildlife roadkilled. The Amphibians group was the most affected, followed by Mammals, Reptiles and Birds. The vertebrates were most affected Rhinella jimi, Cerdocyon thous, Didelphis albiventris, Coragyps atratus, Epicrates assisi and Amphisbaenae alba. It was realized that happened a high index of road kills on the federal road if compared with state road, these roads have one characteristics, thus differing in the number of deaths. Using the program Siriema, it helped in identified distribution of roadkills aggregation along the highway. With the high number of deaths in sorrouding ReBio Guaribas, is necessary adopt management policies and appropriate measures that could prevent or reduce the impact of highways.