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Mostrando ítems 11-20 de 25
A influência da estrutura de paisagens agrícolas nos índices de diversidade de aves
(Universidade Federal de São Carlos, 2015-10-01)
Habitat loss and fragmentation are currently the main causes of the global extinctions, caused mostly by replacing of the native vegetation by different land-uses. The graph theory supports the understanding of the landscapes, ...
Redes de interações entre aves frugívoras e plantas em uma área de Mata Atlântica no sudeste do Brasil
(Universidade Federal de São Carlos, 2015-06-03)
Interactions plants-frugivores are key components in the complexity of forest communities and their modifications or losses can have profound implications for conservation. The study of the interactions networks has proven ...
O papel da limitação de sementes e da limitação no estabelecimento no recrutamento de plantas do cerrado
(Universidade Federal de São Carlos, 2015-12-18)
Plant recruitment can be constrained by seed and establishment limitation and these processes can affect community species composition and diversity. In Neotropical savannas the relative importance of these processes for ...
Relação da estrutura da paisagem mosaico Carajás, PA com a ocorrência de Anodorlynchus hyacinthinus (arara-azul-grade)
(Universidade Federal de São Carlos, 2015-09-04)
In Brazil, there are about 6,500 individuals of Anodorhynchus hyacinthinus (Hyacinth macaw) in wild, located in three physiognomically distinct regions. The specie is demanding as to breeding habitat, and can be regarded ...
Diversidade e estrutura genética de Pilosocereus aureispinus: uma espécie de cactácea vulnerável e microendêmica
(Universidade Federal de São Carlos, 2015-06-12)
Pilosocereus aureispinus (Buining & Brederoo) F. Ritter is a narrow endemic columnar cactus of eastern Brazil, occurring at Ibotirama and Oliveira dos Brejinhos, Bahia. In this work the genetic diversity and population ...
Monitoramento de mudas em plantio para restauração ecológica em área de floresta ombrófila densa
(Universidade Federal de São Carlos, 2015-06-19)
The Atlantic Forest is considered hotspot for biodiversity conservation, due to its high biological diversity, high endemism and high threat of degradation. This scenario has raised concern about finding information to ...
Avaliação da conectividade de remanescentes de vegetação nativa em matriz agrícola, considerando os índices ecológicos para aves
(Universidade Federal de São Carlos, 2015-10-01)
The replacement of natural cover, by other land-uses, associate with the forest fragmentation process can result in the decrease of forest connectivity in the landscapes. The diagnosis of landscape structure, through the ...
Fenologia de espécies ornitófilas e ornitocóricas em um trecho de Floreta Atlântica
(Universidade Federal de São Carlos, 2014-06-03)
Phenology of Atlantic Forest is still ongoing issue for environmental studies. The goal of our study was to analyze and evaluate the phenology of plants pollinated and dispersed by birds on a stretch of Brazilian Atlantic ...
Biogeografia do gênero Rauvolfia L. (Apocynaceae, Rauvolfioideae)
(Universidade Federal de São Carlos, 2014-02-26)
Rauvolfia L. is a pantropical genus with 70 species distributed throughout America, Africa and Asia, also being present in several remote islands like Hawaii and French Polynesia. Although having an estimated age of 34 ...
Manejo genético para a conservação ex situ do Mutum-do-Sudeste, Crax blumenbachii (aves, cracidae)
(Universidade Federal de São Carlos, 2015-01-30)
Captive populations of endangered species are often small, isolated, and founded by a limited number of individuals, which makes them more susceptible to genetic drift and inbreeding effects. Thus, the preservation of the ...