Caatinga Vegetation
Mostrando 13-24 de 113 artigos, teses e dissertações.
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13. Pedogenesis in a topo-climosequence in the Agreste region of Pernambuco
RESUMO O Planalto da Borborema é caracterizado pelos diferentes estágios de evolução do relevo, modificando o clima e a vegetação, sendo observadas florestas tropicais, (brejos de altitude), circundado por caatinga. O objetivo deste trabalho foi caracterizar os solos de uma topoclimossequência no agreste pernambucano, avaliandoa influência do relevo
Rev. Ciênc. Agron.. Publicado em: 2019-06
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14. Potencial utilitário da vegetação lenhosa em área de Caatinga no estado de Pernambuco, nordeste do Brasil
Resumo Este estudo teve como objetivo a análise da relação entre a população humana situada no Assentamento Olho d´Água do Félix, Caruaru-PE e as espécies florestais conhecidas e utilizadas, de forma a testar a hipótese de aparência ecológica. Foi realizado um inventário da vegetação arbórea através de parcelas amostrais de 400 m2 nos fragme
Ciênc. Florest.. Publicado em: 30/05/2019
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15. Physical, Chemical, and Microbiological Properties of Soil under Different Plant Covers in the Seridó Desertification Region in the Brazilian Semiarid
ABSTRACT The Seridó Desertification Region is a result of inadequate management of the native Caatinga vegetation, which generated degraded areas with little or no capacity for plant production. The area has experienced a succession of different land uses, but little is known about the impact of these changes. The present study tested the hypothesis that th
Rev. Bras. Ciênc. Solo. Publicado em: 28/03/2019
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16. Composição e riqueza de espécies de uma comunidade de Coleoptera (Insecta) na Caatinga
RESUMO Os besouros apresentam grande diversidade taxonômica e funcional, no entanto, para a Região Nordeste, especialmente para a porção com vegetação de Caatinga, o conhecimento da fauna de Coleoptera é muito restrito. Por se tratar de uma região com grande diversidade de paisagens, torna-se necessário conhecer a coleopterofauna que ocorre nas dife
Iheringia, Sér. Zool.. Publicado em: 28/03/2019
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17. Treehopper (Membracidae, Auchenorrhyncha) assemblages in four semi-arid areas of caatinga of Northeast Brazil
Resumo As taxocenoses de membracídeos foram amostradas em quatro áreas de Caatinga do semiárido do Nordeste brasileiro, durante a estação chuvosa de 2016 e 2017, utilizando três métodos distintos de captura. Essas áreas estão inseridas em duas Ecorregiões da Caatinga, Depressão Sertaneja Setentrional e Planalto da Borborema. Um total de 2.394 indi
Biota Neotrop.. Publicado em: 11/02/2019
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18. IMPACT OF LAND USE CHANGE ON THE WATER BALANCE IN A REPRESENTATIVE WATERSHED IN THE SEMIARID OF THE STATE OF PERNAMBUCO USING THE SWAT MODEL
ABSTRACT The Brazilian semiarid region present high rainfall variability and long dry periods. Thus, the main springs and streams are generally intermittent, and both native vegetation and human activities have a strong influence on hydrological processes and the water yield in the watershed. The aim of this study was to investigate the impacts of reforestat
Eng. Agríc.. Publicado em: 2019-02
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19. Effects of habitat heterogeneity on epiedaphic Collembola (Arthropoda: Hexapoda) in a semiarid ecosystem in Northeast Brazil
ABSTRACT The spatial distribution of abiotic resources and environmental conditions can vary at small scales within terrestrial ecosystems, influencing the composition of soil fauna. Epiedaphic springtails (Collembola) of a semiarid Caatinga ecosystem were studied to determine if factors related to vegetation structure, such as species richness, aerial bioma
Zoologia (Curitiba). Publicado em: 18/06/2018
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20. ANALYSIS OF THE PHENOLOGY DYNAMICS OF BRAZILIAN CAATINGA SPECIES WITH NDVI TIME SERIES
ABSTRACT In Brazil there are six well-defined biomes and the Caatinga represents 9.92% of the total area. This biome is exclusively Brazilian and very rich in biodiversity. Because it has low resistance to human interference is necessary to know the important factors in monitoring the biome. Vegetation coverage and climate are two of these factors, as they i
CERNE. Publicado em: 2018-03
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21. Do seedling functional groups reflect ecological strategies of woody plant species in Caatinga?
ABSTRACT It is assumed that morphological traits of seedlings reflect different strategies in response to environmental conditions. The ecological significance of this has been widely documented in rainforests, where habitat structure and species interactions play an important role in community assembly. However, in seasonally dry ecosystems, where environme
Acta Bot. Bras.. Publicado em: 06/11/2017
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22. Anthropization Effects on the Filamentous Fungal Community of the Brazilian Catimbau National Park
ABSTRACT The Caatinga biome features an exclusive endemic biodiversity, and is characterized by the presence of xerophytic, deciduous vegetation, high temperatures, and low rainfall. This important park has undergone anthropization, especially through extraction of firewood and timber and growing plants for raising goats. The objectives of this study were to
Rev. Bras. Ciênc. Solo. Publicado em: 24/08/2017
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23. HOW STRONG IS THE RELATIONSHIP BETWEEN RAINFALL VARIABILITY AND CAATINGA PRODUCTIVITY? A CASE STUDY UNDER A CHANGING CLIMATE
ABSTRACT Despite the knowledge of the influence of rainfall on vegetation dynamics in semiarid tropical Brazil, few studies address and explore quantitatively the various aspects of this relationship. Moreover, Northeast Brazil is expected to have its rainfall reduced by as much as 60% until the end of the 21st Century, under scenario AII of the IPCC Report
An. Acad. Bras. Ciênc.. Publicado em: 22/05/2017
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24. Climatically-mediated landcover change: impacts on Brazilian territory
ABSTRACT In the face of climate change threats, governments are drawing attention to policies for mitigating its effects on biodiversity. However, the lack of distribution data makes predictions at species level a difficult task, mainly in regions of higher biodiversity. To overcome this problem, we use native landcover as a surrogate biodiversity, because i
An. Acad. Bras. Ciênc.. Publicado em: 22/05/2017