The Rate and Extent of Deforestation in Brazilian Amazonia

Philip M. Fearnside

doi:10.1017/s0376892900032355

The Rate and Extent of Deforestation in Brazilian Amazonia

Environmental Conservation ◽

10.1017/s0376892900032355 ◽

1990 ◽

Vol 17 (3) ◽

pp. 213-226 ◽

Cited By ~ 51

Author(s):

Philip M. Fearnside

Keyword(s):

Amazon Region ◽

Brazilian Amazonia ◽

Best Estimate

Examination of the often contradictory estimates of the rate and extent of deforestation in Brazilian Amazonia leads to a ‘best estimate’ of the cumulative area of forest cleared through 1988 as 345 × 103 km2 (including old clearings), or 8.2% of the 4 × 106 km2 forested portion of Brasil's 5 × 106 km2 ‘Legal Amazon’ region.

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Checklist of orchid bees (Hymenoptera: Apidae) of “Lago do Silêncio” Area, Boca do Acre, Amazonas, Brazil

Check List ◽

10.15560/7.5.648 ◽

2011 ◽

Vol 7 (5) ◽

pp. 648 ◽

Cited By ~ 6

Author(s):

Danielle Storck-Tonon ◽

Marilene Vasconcelos Silva ◽

Elder Ferreira Morato

Keyword(s):

Amazon Region ◽

Sampling Effort ◽

Orchid Bees ◽

Brazilian Amazonia ◽

Brazilian State ◽

Euglossine Bee ◽

Southwestern Amazonia

This study presents a list of euglossine-bee species collected in the Lago do Silêncio region, municipality of Boca do Acre, in the Brazilian state of Amazonas, southwestern Amazonia. Euglossine males were attracted to odoriferous baits on December 3 and 4, 2004. A total of 234 individuals belonging to four genera and 25 species were collected. Despite the small sampling effort, the local euglossine fauna is abundant and rich, when compared to those of other areas in the Brazilian Amazonia where higher sampling efforts were performed. Therefore, further studies in the region can be important for improving our knowledge of the bees in the Amazon region.

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Morphology of the Vessel Elements in the Secondary Xylem of the Myristicaceae from Brazilian Amazonia

IAWA Journal ◽

10.1163/22941932-90001047 ◽

1987 ◽

Vol 8 (3) ◽

pp. 202-212 ◽

Cited By ~ 1

Author(s):

Pedro L. B. Lisboa ◽

J. Cesar A. da Silva ◽

A. A. Loureiro ◽

Gracielza M. dos A. dos Santos

Keyword(s):

Morphological Study ◽

Secondary Xylem ◽

Brazilian Amazon ◽

Amazon Region ◽

Simple Type ◽

Brazilian Amazonia ◽

Brazilian Amazon Region ◽

Vessel Elements ◽

Perforation Plates

A morphological study of vessel elements was carried out in species representing the five genera of Myristicaceae present in the Brazilian Amazon region. The results show that perforation plates of the scalariform type predominate in Compsoneura, Iryanthera and Otoba, where as perforation plates of the simple type predominate in Osteophloeum and Virola. The phylogenetic and taxonomie implications of these findings are discussed.

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Marsupials and rodents (Didelphimorphia and Rodentia) of upper Rio Acre, with new data on Oxymycterus inca Thomas, 1900 from Brazil

Check List ◽

10.15560/12.5.1956 ◽

2016 ◽

Vol 12 (5) ◽

pp. 1956 ◽

Cited By ~ 2

Author(s):

Edson F. Abreu-Júnior ◽

Marco A. De Freitas ◽

Marina J. Lapenta ◽

Nathocley M. Venâncio ◽

Daniella P. F. De França ◽

...

Keyword(s):

Geographic Distribution ◽

Small Mammals ◽

High Efficiency ◽

Amazon Region ◽

Rodent Species ◽

Pitfall Traps ◽

Undescribed Species ◽

Conservation Units ◽

Brazilian Amazonia

Our goal was to inventory marsupial and rodent species from two conservation units (Reserva Extrativista Chico Mendes and Estação Ecológica do Rio Acre) of the upper Rio Acre, in Brazilian Amazonia, as well as to provide new data on the morphology and geographic distribution for several species. We recorded 25 species, including seven marsupials and 18 rodents. Among these, there are poorly sampled species in Brazil, such as Marmosa regina and Dactylomys boliviensis. We document range extensions (about 450 km towards southeastern Acre state) of Neacomys musseri, Dasyprocta fuliginosa, and Proechimys cuvieri. We also present the first confirmed record of an undescribed species of Monodelphis in Acre state and the second collecting record of Oxymycterus inca in Brazil. We describe the morphology and morphometrics of upper Rio Acre specimens of O. inca. Finally, we compare our results with other inventories in the Amazon region and discuss the high efficiency of pitfall traps for capturing nonvolant small mammals.

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Cidades médias na Amazônia Oriental: das novas centralidades à fragmentação do território

Revista Brasileira de Estudos Urbanos e Regionais ◽

10.22296/2317-1529.2011v13n2p135 ◽

2011 ◽

Vol 13 (2) ◽

pp. 135 ◽

Cited By ~ 2

Author(s):

Saint-Clair Cordeiro da Trindade Júnior

Keyword(s):

Statistical Data ◽

Amazon Region ◽

Urbanization Process ◽

Production Of Space ◽

Brazilian Amazonia ◽

Regional Production ◽

Political Interests ◽

Two Cities ◽

Territorial Division

O artigo apresenta elementos da centralidade urbano-regional de cidades médias na Amazônia brasileira e discute o papel desse tipo de cidade em um contexto de reestruturação territorial. Para efeitos de análise considera a diferença conceitual entre “centro” e “centralidade”, assim como entre “fluxos” e “fixos”. As referências empíricas da análise são duas cidades situadas na Amazônia Oriental – Marabá e Santarém. O estudo faz uma abordagem a propósito da importância dessas cidades para a produção do espaço regional e considera elementos históricos da formação territorial da Amazônia brasileira, assim como dados estatísticos e informações documentais sobre essa região e seu processo de urbanização. Ao final é destacado o papel da centralidade política desempenhado pela cidade média na Amazônia em um contexto regional de rearranjo espacial, de emergência de novos interesses regionais e de propostas de divisão política do território. Palavras-chave: cidades médias; Amazônia Oriental; centralidade; divisão territorial. Abstract: This paper presents elements of the urban-regional centrality of middle-size cities in the Brazilian Amazônia and discusses the role of these cities in a context of territorial restructuring. For that analysis it is considered conceptual differences between “center” and “centrality”, as well as between “flux” and “fix” are considered. The empirical references of the analysis are two cities located in the eastern Amazônia – Marabá and Santarém. The study approaches the importance of these cities for the regional production of space and considers historical elements of the territorial formation of Brazilian Amazônia, as well as statistical data and documental information about that region and its urbanization process. The analysis finishes whit the discussion of the role played by middle cities in the Amazon region and its political centrality in a context of spatial re-arrangement, of emergence of new political interests and of political territory division intentions. Keywords: middle-size cities; Eastern Amazon; centrality; territorial division.

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