Fragmented Forests
Mostrando 1-12 de 31 artigos, teses e dissertações.
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1. IS BIOTIC INTEGRITY OF URBAN FORESTS REMANTS RELATED WITH THEIR SIZE AND SHAPE?
ABSTRACT The Brazilian Atlantic Forest (BAF) is one of the biodiversity hotspots, but in the last decades, it has been fragmented due to agricultural and urban-industrial expansion, which has a strong impact on forest fragments. The goal of this study was to analyze the Biotic Integrity Index (BII) in fragments of BAF in two medium-sized cities in Southeaste
CERNE. Publicado em: 2020-03
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2. Floristic structure and composition of Guadua forests in the Colombian coffee region1
RESUMO Na região cafeeira (900-2.000 m de altitude) dos Andes colombianos, os remanescentes florestais correspondem, principalmente, a fragmentos dominados pela espécie de bambu Guadua angustifolia Kunth (Guadua). Essas florestas altamente fragmentadas são encontradas em paisagens com alto grau de transformação devido à atividade agrícola e à expans�
Pesqui. Agropecu. Trop.. Publicado em: 25/11/2019
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3. SPATIAL DYNAMICS OF SEMIDECIDUOUS SEASONAL FORESTS: CASE STUDY IN THE TURVO SUJO RIVER BASIN IN SOUTHEASTERN BRAZIL, BETWEEN THE YEARS OF 2003 AND 2016
RESUMO De acordo com a Agência Nacional das Águas (ANA), a escassez de água vem sendo um problema brasileiro desde 2012 e está diretamente relacionado com a conservação das bacias hidrográficas. É possível monitorar as mudanças da paisagem e conservação dessas bacias com imagens provenientes de sensores orbitais. O trabalho teve como objetivo ana
Rev. Árvore. Publicado em: 04/02/2019
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4. Dung beetle (Coleoptera, Scarabaeidae) assemblage of a highly fragmented landscape of Atlantic forest: from small to the largest fragments of northeastern Brazilian region
Human activities in tropical forests are the main causes of forest fragmentation. According to historical factor in deforestation processes, forest remnants exhibit different sizes and shapes. The aim of the present study was to evaluate the dung beetle assemblage on fragments of different degree of sizes. Sampling was performed during rainy and dry season o
Rev. Bras. entomol.. Publicado em: 2015-06
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5. Estudo das populações de flebotomíneos transmissores de Leishmania no Panamá / Study of sand fly population transmitter of Leishmania in Panam
The sand flies are insects of the order Diptera (nematocera), family Psychodidae, subfamily Phlebotominae that are recognized as important disease vectors. They are known to be vectors of arbovirus belonging to the family Reoviridae, Bunyaviridae and Rhabdoviridae as well as vectors of bacteria of family Bartonellacea. However, sand flies gained more epidemi
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 15/02/2012
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6. Arthropod responses to the experimental isolation of Amazonian forest fragments
Arthropods are the most diverse and abundant group of animals found in tropical lowland forests, and in light of ongoing global change phenomena, it is essential to better understand their responses to anthropogenic disturbances. Here we present a review of arthropod responses to forest deforestation and fragmentation based on studies conducted at the Biolog
Zoologia (Curitiba). Publicado em: 2012-12
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7. Estudo do estrato regenerativo em trechos de floresta estacional semidecidual, no sudeste do Brasil
Foi realizado o levantamento fitossociológico do estrato regenerativo de trechos de remanescentes de floresta estacional semidecidual, localizados na Universidade Federal de São Carlos - campus Sorocaba, Estado de São Paulo, Brasil. O objetivo deste estudo foi analisar a estrutura e composição florística do estrato regenerativo. Foram identificadas 129
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 15/03/2011
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8. Anthropogenic influence on the distribution, abundance and diversity of sandfly species (Diptera: Phlebotominae: Psychodidae), vectors of cutaneous leishmaniasis in Panama
In Panama, species of the genus Lutzomyia are vectors of American cutaneous leishmaniasis (ACL). There is no recent ecological information that may be used to develop tools for the control of this disease. Thus, the goal of this study was to determine the composition, distribution and diversity of Lutzomyia species that serve as vectors of ACL. Sandfly sampl
Memórias do Instituto Oswaldo Cruz. Publicado em: 2011-12
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9. Cerrado ground-dwelling ants (Hymenoptera: Formicidae) as indicators of edge effects
Large-scale agricultural production in Brazil preferentially occupies plateaus reclaimed from areas originally covered by Cerrado (savanna). Depending on the region, a percentage of the pristine vegetation coverage must be preserved by law, resulting in the creation of fragmented legal Cerrado reserves. The geometry of these relatively small legal reserves c
Zoologia (Curitiba). Publicado em: 2011-06
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10. Partição da diversidade de formigas em uma paisagem fragmentada / Ant diversity partitioning in a fragmented landscape
Forest fragmentation events have been characterized as one of the main threats to biodiversity in modern times, and are the primary cause of species loss in tropical forests. Ants are organisms that present many suitable traits to be used in ecological studies, therefore they are frequently used in fragmentation surveys. However only epigaeic microhabitat ha
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 26/07/2010
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11. AVALIAÇÃO DO REGIME HÍDRICO, GEOLÓGICO E GEOMORFOLÓGICO DAS FLORESTAS PALUDOSAS DO PARQUE ESTADUAL DO ITACOLOMI: INFLUÊNCIA DOS FATORES ABIÓTICOS SOBRE A COMPOSIÇÃO FLORÍSTICA E FITOSSOCIOLÓGICA.
The study have been developed in two fragments of permanently flooded Upper Montane Ombrophylous forest, located in the Itacolomi State Park, Ouro Preto, state of Minas Gerais, Brazil. This phytophisiognomy have a naturally fragmented distribution, but in several different of brazilian physiographic conditions. Still does not know a real covered area of this
Publicado em: 2009
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12. Uso do solo na Bacia Hidrográfica do rio Camboriú (SC) e sua influência sobre a qualidade da água
The watershed of the Camboriú River is located in the cities of Camboriú and Balneário Camboriú. With a length of around 40 kilometers, it drains an area of 200 km2. This paper aims to characterize the Camboriú River watershed by determining space-time variations of physical, chemical and biological parameters of superficial water, as well as the soil o
Publicado em: 2009