Bases ecológicas para a gestão da conservação in-situ de espécies de serpentes da família boiade em uma floresta de terra firme da Amazônia Central

Abstract

This study was developed in the vicinity of the rural area of the municipal district of Rio Preto da Eva, Amazonas, in an area that Rainforest terra-firme, located to 105 km to northeast of Manaus with access for the Highway AM-010. The study area possesses 220Km2 approximately, being characterized by factors that contribute to a process of fragmentation of the habitat, distinguishing areas that are not more in direct connection with the forest continues, and these factors are evidenced by the construction of the own Highway AM-010, ring road ZF-9 and Procópio that locate about of the area. Other activities of the impact thatthey modify the natural landscape can be observed, as the illegal exploration of wood, it hunts and illegal traffic of animals. The objective of this work went accomplish a rising so that it was possible to observe the distribution status and use of the habitat for Família Boidae's serpents. The study was accomplished among the period from 2005 to 2006 with the total of 18 months of collection of data. For sampling of serpents in field different methods were used (time constrained, local collectors, sampling by car and incidental encounters) could be observed a significant difference between its use and the sampling of serpents. During the field works they were applied questionnaires in 3 communities and 17 properties peculiar of the I spill, in relation to the etno-knowledge of serpents Boidae, and to evaluate the factors of conflicts among these encourages and the local inhabitants. They were still obtained through the INPE images of the satellite CBERS - 2, sensor CCD, of the study area so that it was possible to accomplish a classification and to generate use maps and occupation. For that 60 control points associated to a landscape diagnosis were collected. During the period 59 serpents distributed in four generous and five species were found, Boa c. constrictor, Corallus caninus, Corallus hortulanus, Epicrates cenchria cenchria and Eunectes Murinus. The species showed a variation between the substratum type and used habitats. It is possible to observe through the covering maps which species can be potentially affected for the alteration of the natural landscape and the risks of they be close of the human presence, once to the serpents they are seen as a risk to the good to be of the local inhabitants.