Open Savanna
Mostrando 1-12 de 24 artigos, teses e dissertações.
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1. Heterogeneidade ambiental e estrutura da vegetação arbustivo-arbórea em três áreas de Cerrado sentido restrito no Sudoeste goiano
Resumo A variação fitofisionômica do Cerrado brasileiro é intensa e estudos fitossociológicos podem fornecer subsídios sobre quais fatores são responsáveis por essa heterogeneidade ambiental. Nesse sentido, esse estudo teve o objetivo de avaliar a estrutura da vegetação lenhosa de três áreas de cerrado sentido restrito, no município de Jataí -
Ciênc. Florest.. Publicado em: 30/09/2019
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2. What is on the menu for frugivorous birds in the Cerrado? Fruiting phenology and nutritional traits highlight the importance of habitat complementarity
ABSTRACT The relationship between plants and frugivorous animals is modulated by morphological and nutritional characteristics of fruits, as well as their seasonal availability across habitats. We evaluated fruiting phenology, fruit morphology and nutritional characteristics of 35 abundant plant species from 15 families associated with frugivorous birds from
Acta Bot. Bras.. Publicado em: 12/09/2019
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3. Distribution extension of Phimophis guerini (Serpentes: Dipsadidae: Xenodontinae) in the Brazilian Amazon
ABSTRACT Phimophis guerini Duméril, Bibron & Duméril, 1854 is a Xenodontinae snake distributed in Argentina, Brazil and Paraguay. In Brazil, the species is broadly distributed, occurring mainly in open areas of the Cerrado, but also in the Amazon, Atlantic forest and Caatinga. We provide a new record for this species from the municipality of Santarém in t
Zoologia (Curitiba). Publicado em: 22/07/2019
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4. Temporal changes in species composition, diversity, and woody vegetation structure of savannas in the Cerrado-Amazon transition zone
ABSTRACT Vegetation in the transition between tropical forest and savanna is hyperdynamic and there is evidence that in the absence of fire, forest advances over savanna. Between 2008 and 2013 we evaluated changes in species composition and diversity and in the structure of the woody vegetation of savanna physiognomies in the transition between the Cerrado a
Acta Bot. Bras.. Publicado em: 15/01/2018
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5. Phylogeographic analyses of the pampas cat (Leopardus colocola; Carnivora, Felidae) reveal a complex demographic history
Abstract The pampas cat is a small felid that occurs in open habitats throughout much of South America. Previous studies have revealed intriguing patterns of morphological differentiation and genetic structure among its populations, as well as molecular evidence for hybridization with the closely related L. tigrinus. Here we report phylogeographic analyses e
Genet. Mol. Biol.. Publicado em: 2018
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6. Spatial patterns of two co-occurring savanna and forest tree species in a dense fire-protected savanna fragment
ABSTRACT Savanna-forest transition under fire-exclusion could be explained by differential competitive performance of savanna and forest species under shading/fire-exclusion. Aiming to understand strategies related to either habitat affinity, we investigated spatial patterns of a savanna and a forest species in a fire-protected savanna. We predicted that: sa
Acta Bot. Bras.. Publicado em: 10/11/2016
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7. Natural history of Micrablepharus maximiliani (Squamata: Gymnophthalmidae) in a Cerrado region of northeastern Brazil
Micrablepharus maximiliani (Reinhardt & Luetken, 1861) is a microteiid lizard widely distributed in the open areas of South America. Little is known about its ecology and reproductive biology. Here, we analyzed aspects of the natural history of a population of M. maximiliani from a Cerrado area in the state of Piauí, northeastern Brazil. Our results suggest
Zoologia (Curitiba). Publicado em: 2014-04
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8. Composição e sazonalidade de borboletas frugívoras no cerrado, com ênfase na relação fenológica entre Eunica bechina (Nymphalidae: Biblidinae) e sua planta hospedeira Caryocar brasiliense (Caryocaraceae) / Composition and seasonality of fruit-feeding butterflies in the cerrado savanna, with emphasis on the phenological relationship between Eunica bechina (Nymphalidae: Biblidinae) and its host plant Caryocar brasiliense (Caryocaraceae)
In many tropical environments, rainy and dry seasons alternate. The dryer season has decreased leaf availability and the nutritional quality of leaves is also low - thus it is an unfavorable period for herbivorous insects and generates seasonal oscillations in their populations. The cerrado is a neotropical seasonal biome characterized by a hot/rainy and a c
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 27/05/2011
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9. High levels of genetic differentiation and selfing in the Brazilian cerrado fruit tree Dipteryx alata Vog. (Fabaceae)
Dipteryx alata is a native fruit tree species of the cerrado (Brazilian savanna) that has great economic potential because of its multiple uses. Knowledge of how the genetic variability of this species is organized within and among populations would be useful for genetic conservation and breeding programs. We used nine simple sequence repeat (SSR) primers de
Genetics and Molecular Biology. Publicado em: 29/01/2010
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10. Alteração no uso e cobertura do solo na bacia do médio rio Araguaia, Brasil central / Land use land and cover changes in the middle Araguaia river basin, central Brazil
The central region of the Araguaia river basin encompasses a transition area between the Tropical Rain Forest and the Cerrado in Brazil. Despite of the fact that during the last four decades, this area has undergone an intense deforestation process, the quantification and impact of these changes are still unknown. Thus this study aimed to evaluate the dynami
Publicado em: 2010
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11. Mamíferos nativos atropelados em uma área no bioma Pampa: variação sazonal e efeito do tipo hábitat
A construção de estradas é um fator de perturbação de alto impacto, removendo a cobertura vegetal original, gerando efeito de borda e alterando a função e a estrutura da paisagem. Este tipo de modificação acarreta em sérios impactos à fauna de vertebrados em processo de deslocamento, que se vêem forçados a superar essas barreiras artificiais, el
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 31/08/2009
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12. Interações entre Platonia insignis (Clusiaceae) e a avifauna visitante floral no cerrado do Maranhão / Interactions between Platonia insignis (Clusiaceae) and the bird-flower visitors at the savanna of Maranhão
The bacurizeiro, Platonia insignis Mart. (Clusiaceae), is an amazonian tree species that dispersed into savanna borders of the Northeast region of Brazil in the States of Maranhão and Piauí. We studied the floral biology and morphology, the breeding system, the relation between flower density and plant exposition to the sun, the flowering overlap and the a
Publicado em: 2008