245 resultados para Morphotypes
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Pós-graduação em Ciências Biológicas (Botânica) - IBB
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Pós-graduação em Ciências Biológicas (Genética) - IBB
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Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
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Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
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Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
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Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
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Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
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Pós-graduação em Ciências Biológicas (Zoologia) - IBRC
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Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
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Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
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Pós-graduação em Agronomia (Genética e Melhoramento de Plantas) - FCAV
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Herbivory is the basal link among the trophic chains and therefore has great importance in the energy flow in the ecosystems. However, the ecological interactions have been changed due to the process of fragmentation that has occurred in the cerrado. Thus, our objective was to evaluate the herbivory and the presence of possible constituents of defense in leaves of Bauhinia rufa in two cerrado fragments of different sizes . We evaluated in both of them species richness and abundance of herbivores as well absolute herbivory ( n = 25 plants / fragment ) . Through histochemical tests and scanning electron microscopy we verified the constituents of defense. The difference between the herbivory in the fragments was not statistically significant ( t = -1.387 , p = 0.166 ) . However , we found a higher abundance of morphotypes of herbivores in the smaller fragment. We detected chemical and physical constituents that may confer protection to the plant at all stages of leaf development. Although several publications have indicated that small fragments have a higher susceptibility to changes, our study revealed no effect of fragment size on the absolute herbivory, suggesting that there are other factors acting more strongly and maintaining this type of interaction in these ecosystems
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Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
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Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
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Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)