Floristic Transition
Mostrando 1-12 de 18 artigos, teses e dissertações.
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1. Drivers of floristic variation in biogeographic transitions: insights from the ecotone between the largest biogeographic domains of South America
ABSTRACT Ecological transitions usually represent vulnerable ecosystems and high biodiversity. Investigating their drivers is important from both biogeographic and conservationist perspectives. One of these transitions is situated between the two largest biogeographic domains of South America - the Amazon and the Cerrado. We evaluated variation in tree flori
Acta Bot. Bras.. Publicado em: 2020-03
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2. Emerging hotspots of tree richness in Brazil
ABSTRACT We present a summary of floristic variation and distribution of richness of tree and tree-like taxa (i.e., freestanding plants that reach at least 3m in height) in Brazil. We investigated composition patterns throughout phytogeographic domains and vegetation types based on 698,490 occurrence records obtained from the NeoTropTree (NTT) database, and
Acta Bot. Bras.. Publicado em: 2020-03
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3. Distribution patterns of ferns and lycophytes in the Coastal Region of the state of Rio Grande do Sul, Brazil
ABSTRACT A survey of ferns and lycophytes of the Coastal Region of the state of Rio Grande do Sul (CRRS) was performed based on field work and collections of the main regional herbaria. The following were evaluated for each species: preferential habits (terrestrial, epiphytic or aquatic), geographic distribution patterns and habitats (forest, grassland, and
Acta Bot. Bras.. Publicado em: 19/04/2016
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4. Diversity and composition of tiger moths (Lepidoptera: Arctiidae) in an area of Atlantic Forest in southern Brazil: is the fauna more diverse in the grassland or in the forest?
The Atlantic Forest is considered a biodiversity hotspot for conservation, because its fauna and flora are highly endemic and suffer from loss of natural habitats. This study assessed the composition and diversity of tiger moths (Lepidoptera: Arctiidae) in two floristic formations of the southern Atlantic Forest (grassland and Araucaria forest) and in a tran
Zoologia (Curitiba). Publicado em: 2012-02
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5. The snake assemblage (Squamata: Serpentes) of a Cerrado-Caatinga transition area in Castelo do Piauí, state of Piauí, Brazil
This study records and analyzes the diversity and structure of a snake assemblage in a transition area between Cerrado and Caatinga, in the municipality of Castelo do Piauí, state of Piauí, comparing the distribution and similarity of the species composition with other open localities already studied in Brazil. We used three complementary sampling methods:
Zoologia (Curitiba). Publicado em: 2011-08
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6. Distribuição dos contatos florísticos e refúgios vegetacionais no Pantanal brasileiro.
A vegetação do Pantanal é composta por quatro principais Regiões Fitoecológicas: Cerrado, Chaco, Mata Decídua e Mata Semidecídua. Os contatos florísticos são transições de diferentes Regiões Fitoecológicas onde as espécies se misturam e são de grande importância para o equilíbrio ambiental e da biodiversidade. O objetivo deste trabalho é ma
SIMPÓSIO DE GEOTECNOLOGIAS NO PANTANAL. Publicado em: 2011
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7. Caracterização florística e potencial de uso das espécies vasculares ocorrentes nas fazendas Trijunção, BA.
ABSTRACT: Proper management of natural areas requires phisical (soil, climate and topography) and biological (fauna, flora and microorganisms) characterization. Such information is extremaly useful for management plans of conservation unit such as National Parks, Extractive Reserves of Natural Resources Reserve (RPPN). This study aimed characterize floristic
Planaltina. Publicado em: 2011
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8. Avaliação do efeito de borda sobre a vegetação do cerrado stricto sensu inserido em matriz de pastagem / Edge effects on plant community of cerrado sensu stricto inserted into a matrix of pasture
From the Brazilian biomes, the Cerrado has been the most widely and rapidly converted to agribusiness in recent years. The expansion of agricultural frontier over the Cerrado domain resulted in thousands of small fragments embedded in matrices of low similarity, causing a series of negative impacts on the natural ecosystem. Habitat fragmentation is considere
Publicado em: 2010
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9. Composição florística e estrutural da vegetação de restinga do Estado do Piauí
Restinga is vegetation settled upon quartzpamnents of the quaternary and its floristic composition is considered an extension of Atlantic Forest or adjacent ecosystems. The present thesis brings two works released in the restingas of the State of Piauí, whose coast belongs to the septentrional portion of the northeastern coast. This study is divided in two
Publicado em: 2009
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10. Study of Cerrado physiognomies with Hyperion-EO-1 data / Estudo de fitofisionomias de Cerrado com dados do sensor Hyperion-EO-1
The study of the Brazilian savanna physiognomies (Cerrado) using remote sensing data is still a challenge due to floristic and structural diversity, variation in phenological response to precipitation, relationships with other biomes in the transition zones, and to fire and resultant effects. Because of these factors, some physiognomies are not separable in
Publicado em: 2009
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11. Vegetation and soil gradient in the restinga forest in Espirito Santo, Brazil / Gradiente vegetacional e pedológico em floresta de restinga no Espírito Santo, Brasil
The Restingas are ecosystems that occur in sandy soils deposited during the Quaternary. These are known to have a high diversity of vegetation, but few studies provide information on abiotic factors determining this diversity. This study aimed to: (i) assess the influence of the chemical aspects, physical soil and flooding in phytophysionomic determination,
Publicado em: 2009
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12. Eficiência do uso de nutrientes ao longo de uma transição de mata de galeria e cerrado no Distrito Federal
In the cerrado landscape, gallery forests occur along the streams and are surrounded by open forms of cerrado vegetation, accompanied by edaphic gradients. Transitions between forest physiognomies and adjacent open cerrado forms involve not only changes in the structure, dynamics, floristic composition of vegetation and species distribution, but also variati
Publicado em: 2008