Natural Grassland
Mostrando 1-12 de 78 artigos, teses e dissertações.
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1. Conservation of species-rich subtropical grasslands: traditional management vs. legal conservation requirements in primary and secondary grasslands
ABSTRACT Land-use change is the main cause of biodiversity losses, and for grasslands includes changes in management. The last 10 years has seen afforestation of traditionally grazed grasslands increase considerably in the understudied Serra do Sudeste region of the Brazilian Pampa, turning the region into a mosaic of tree plantations, natural ecosystems (pa
Acta Bot. Bras.. Publicado em: 2020-06
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2. Psicologia Ambiental e Recursos em Sustentabilidade: Revisão Integrativa
Resumo O objetivo deste estudo foi examinar, por meio de revisão integrativa de artigos empíricos, a produção científica relacionando a Psicologia Ambiental (variáveis de comportamento/cognição) e sustentabilidade, considerando diferentes recursos. Para efeitos deste estudo, foram analisados os artigos que abordam um recurso único. A busca foi reali
Psicol. cienc. prof.. Publicado em: 20/12/2019
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3. FOUR DECADES OF HYDROLOGICAL PROCESS SIMULATION OF THE ITACAIÚNAS RIVER WATERSHED, SOUTHEAST AMAZON
Abstract The impacts of anthropogenic degradation are becoming increasingly more evident in the Amazon and are jeopardizing its environmental systems and water resources, particularly in low monitored watersheds. Thus, the use of hydrological models is necessary to gain an understanding of these impacts on Amazonian river systems. The aim of this study was t
Bol. Ciênc. Geod.. Publicado em: 14/10/2019
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4. Composition and floral diversity in Andean grasslands in natural post-harvest restoration with Lepidium meyenii Walpers
Resumo Os ecossistemas de prados andinos sofrem processos de degradação natural e antropogênica. A mudança de uso da terra para uso agrícola é a maior ameaça com grande perda de biodiversidade, seguido por um processo muito lento de revegetação. O objetivo do estudo foi avaliar a riqueza, abundância e diversidade alfa e beta em áreas de dois, trê
Rev. Ambient. Água. Publicado em: 10/10/2019
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5. Birds of Parque Estadual do Tainhas, an important protected area of the highland grasslands of Rio Grande do Sul, Brazil
Abstract Parque Estadual do Tainhas - PET (Tainhas State Park) is a protected area with significant extensions of natural grasslands located in highland grasslands of northeastern Rio Grande do Sul state, Brazil, and recognized as an Important Bird Area. Our aim was to record the bird species richness of PET with a greater sampling effort than previous studi
Pap. Avulsos Zool.. Publicado em: 03/10/2019
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6. Changes in organic carbon in soil of natural grassland converted to Pinus taeda plantations at three ages
Resumo O plantio de pinus em áreas de campo natural (NG) pode alterar as formas e estoques de carbono orgânico (OC) do solo. Visando quantificar essas alterações, foram determinados os teores e estoques de OC total (TOC) e das frações particulada (POC) e associadas aos minerais (MAC) em cinco camadas, entre 0,0 e 0,4 m de profundidade, do solo sob usos
Ciênc. Florest.. Publicado em: 30/09/2019
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7. Vegetation Burning in Pampa Biome Altered the Chemical Composition of Rainfall
ABSTRACT Rainfall is one of the primary nutrient inputs to vegetation and its chemical composition is dependent on air quality as falling rain scavenges gaseous and particulate emissions from natural, industrial, and agricultural activities. The objective of this study was to evaluate whether the vegetation burn in a region of the Pampa biome influences the
Floresta Ambient.. Publicado em: 04/07/2019
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8. Expansão da vegetação arbustivo-arbórea em áreas abertas alto-montanas adjacentes a fragmentos florestais, no Planalto Sul Catarinense
Resumo O objetivo deste estudo foi conhecer os padrões demográficos da regeneração natural do componente arbustivo-arbóreo e determinar se esses são influenciados pelas variáveis ambientais, em três áreas abertas em regeneração natural (diâmetro na altura do peito < 5 cm), em contato com fragmentos florestais de Floresta Ombrófila Mista Alto-Mon
Ciênc. Florest.. Publicado em: 30/05/2019
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9. Abiotic effects on the cover and richness of corticolous lichens on Araucaria angustifolia trunks
ABSTRACT Lichens play a key role in natural ecosystems, as they can function as primary producers, recycle minerals and fix nitrogen. Despite their environmental importance, little is known about lichen ecology in Brazil, and especially about how abiotic factors may influence their spatial distribution. In this study, we aimed to verify how the cover and ric
Acta Bot. Bras.. Publicado em: 21/09/2018
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10. Long-Term Effect of Soil Use and Management on Organic Carbon and Aggregate Stability
ABSTRACT: The conversion of native grassland into farmland causes changes in the soil. Tillage has profound effects on soil organic matter. The intensification of soil tillage decreases soil quality by reducing aggregate stability. Soil aggregate stability and soil organic matter are key indicators for soil quality and environmental sustainability in agro-ec
Rev. Bras. Ciênc. Solo. Publicado em: 13/09/2018
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11. First standardized inventory of ants (Hymenoptera: Formicidae) in the natural grasslands of Paraná: New records for Southern Brazil
Abstract Despite the large number of studies investigating ant diversity in Brazilian biomes, no ant-related studies have been carried out in Campos Gerais, a grassland physiognomy in Paraná state. The present study is the first inventory of the ant fauna in one of the few conservation units protecting the Campos Gerais landscape, the Guartelá State Park (
Pap. Avulsos Zool.. Publicado em: 19/03/2018
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12. Antimycobacterial and antimalarial activities of endophytic fungi associated with the ancient and narrowly endemic neotropical plant Vellozia gigantea from Brazil
BACKGROUND Endophytic fungi, present mainly in the Ascomycota and Basidiomycota phyla, are associated with different plants and represent important producers of bioactive natural products. Brazil has a rich biodiversity of plant species, including those reported as being endemic. Among the endemic Brazilian plant species, Vellozia gigantea (Velloziaceae) i
Mem. Inst. Oswaldo Cruz. Publicado em: 2017-10