Pesquisas


Book Description







The Ecology, Exploitation and Conservation of River Turtles


Book Description

The underlying theme of this book is that a widespread, taxonomically diverse group of animals, important both from ecological and human resource perspectives, remains poorly understood and in delcine, while receiving scant attention from the ecological and conservation community. This volume proposes a comprehensive overview of the world's river turtles' ecology, conservation, and management. It begins with a categorization of taxa which inhabit flowing water habitats followed by information on their evolutionary and physical diversity and biogeography. Within the framework of ecology, the authors discuss the composition of river turtle communities in different types of lotic habitats and regions, population dynamics, movements, reproductive characteristics and behavior, predators, and feeding relationships. In a conservation and management section, the authors identify and evaluate the nature and intensity of factors which threaten river turtle survival--almost all of which involve direct human exploitation or indirect effects of human induced habitat alteration and degradation. They then list and evaluate the various schemes which have been proposed or employed to halt declines and restore populations, and make recommendations for future management plans for specific species and regions. In closing, they state their viewpoint concerning future research directions and priorities, and an evaluation of future prospects for survival of the world's river turtle species.




Views of Nature


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Freshwater Biomonitoring and Benthic Macroinvertebrates


Book Description

North American and European governments have adopted national programs for environmental monitoring and assessment that include the use of aquatic biota. These programs will use a variety of indicators of environmental health; benthic macroinvertebrates are one of the most promising of them. The chapters in this book deal with the many different approaches available for using benthic macroinvertebrates in biological monitoring programs.




Neotropical Birds


Book Description

This unparalleled wealth of finely detailed ecological information on Neotropical bird communities will prove invaluable to all Neotropical wildlife managers, conservation biologists, and serious birders.




Genera Orchidacearum Volume 3


Book Description

Genera Orchidacearum is the first monograph of the world's orchid genera that reflects their long evolutionary history and reveals relationships based on genealogical descent and the most up-to-date DNA data.




Biodiversity in the Brazilian Amazon


Book Description

A situação socioambiental da Amazônia brasileira na virada do milênio. Resultado do esforço coletivo de cientistas, técnicos de órgãos públicos e de organizações não governamentais e lideranças do movimento social, esta obra traz 27 artigos de 47 autores, mais de uma centena de mapas temáticos, extensos bancos de dados e fotos de cinco renomados fotógrafos.




Turtles


Book Description