Large to medium size mammals in eucalypt plantation areas at High Pranapananema and Midle Tietê river basins, São Paulo State / Mamíferos de médio e grande porte em áreas de cultivo de eucalipto das bacias do Alto Paranapanema e Médio Tietê, Estado de São Paulo

AUTOR(ES)

Thiago Philipe de Camargo e Timo

DATA DE PUBLICAÇÃO

2009

RESUMO

The region comprehended amid the high portion of river Paranapanema, mid portion of river Tietê and the river Sorocaba, has a long history of human influence on landscape. This influence was intensified during the past two centuries through the passage of railroads and hydroelectric dam constructions along with other modifications that had implications on land use changes. One of the significant modifications was the arrival and rapid expansion of eucalypt silviculture. The structure and cycle of production of this cultivated vegetation have influence on plant and animal native communities. In this study, geometric conformity and age of planted stands in eucalypt silviculture areas were evaluated on patterns of distribution and abundance of medium to large size mammals. It was possible to demonstrate that herbivores are favored by extensive areas of native vegetation, while omnivores benefit from the absence of large predators and complex geometry of native vegetation in landscapes with dominant eucalypt matrix. Where eucalypt plantations are the commonest landscape features, these species use central areas of silviculture stands in intermediate stages of cultivation, when there is undergrowth that offers shelter and food resources. These observations reinforce the importance of Permanent Preservation Areas and Legal Reserves in agricultural landscapes, as well as they question the conservatism on application of environmental laws that leads to the legal impediment of harvest on eucalypt stands with undergrowth, decreasing conservation value of this culture for medium to large size mammals fauna.

ASSUNTO(S)

ecossistemas florestais mammals distribution. mamíferos - distribuição. eucalipto forest ecosystems eucalypt

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