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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
1

Influência espacial, edáfica e do teor de fenóis na diversidade da entomofauna foliar de Caryocar brasiliense / Effects of soil and spatial parameters and foliar phenolic contents on entomofauna variability in Caryocar brasiliense

Costa, Deomar Plácido da 28 November 2014 (has links)
Submitted by Luanna Matias (lua_matias@yahoo.com.br) on 2015-03-26T13:29:15Z No. of bitstreams: 2 Tese - Deomar Plácido da Costa - 2014.pdf: 4099062 bytes, checksum: 621b8aac23edc39c2891c18ea16f400c (MD5) license_rdf: 23148 bytes, checksum: 9da0b6dfac957114c6a7714714b86306 (MD5) / Approved for entry into archive by Luanna Matias (lua_matias@yahoo.com.br) on 2015-03-26T13:45:01Z (GMT) No. of bitstreams: 2 Tese - Deomar Plácido da Costa - 2014.pdf: 4099062 bytes, checksum: 621b8aac23edc39c2891c18ea16f400c (MD5) license_rdf: 23148 bytes, checksum: 9da0b6dfac957114c6a7714714b86306 (MD5) / Made available in DSpace on 2015-03-26T13:45:01Z (GMT). No. of bitstreams: 2 Tese - Deomar Plácido da Costa - 2014.pdf: 4099062 bytes, checksum: 621b8aac23edc39c2891c18ea16f400c (MD5) license_rdf: 23148 bytes, checksum: 9da0b6dfac957114c6a7714714b86306 (MD5) Previous issue date: 2014-11-28 / Leaf entomofauna variation in eleven Caryocar brasiliense populations from central Brazilian Cerrado was analyzed based on total phenolic contents, as well as edaphic and spatial parameters of the sampling sites. Insects of the order Coleoptera had low occurrence in leaves that showed high levels of total phenols and tannins. However, they were found in leaves of plants growing on soils with higher micronutrient contents. Insects of the orders developed galls on plants with high levels of total and hydrolysable tannins. Hemiptera showed a homogeneous distribution, whereas species of the orders Neuroptera, Diptera, and Orthoptera behaved as visiting insects, without establishing any relationship with C. brasiliense during field observations. Approximately 97% of the entomofauna variability was explained by edaphic, chemical, and spatial data sets as predictor variables, whose contributions were 64.5%, 22.7%, and 60.6% of the total variation, respectively. Most of the residual variance (2.9%) was attributed to the anthropization of sampling sites. / A variação da entomofauna nas folhas de onze populações de Caryocar brasiliense do centro Cerrado brasileiro foi analisada com base no teor de compostos fenólicos totais, bem como de parâmetros edáficos e espaciais dos locais de amostragem. A ordem de insetos Coleoptera apresentou uma baixa ocorrência em folhas que continham altos níveis de fenóis totais e taninos. No entanto, eles foram encontrados em folhas de plantas que cresceram em solos com teores de micronutrientes mais elevados. Insetos da ordem Hymenoptera formou galhas em plantas com altos níveis de taninos totais e taninos hidrolisáveis. Hemiptera mostrou uma distribuição homogênea, enquanto que as espécies das ordens Neuroptera, Diptera e Orthoptera se comportaram como insetos visitantes, sem estabelecer qualquer relação com C. brasiliense durante as observações de campo. Aproximadamente 97% da variabilidade da entomofauna podem ser explicadas pelos conjuntos de dados edáficos, químicos e espaciais como variáveis preditoras, cujas contribuições foram de 64,5%, 22,7% e 60,6% da variação total, respectivamente. A maior parte da variância residual (2,9%) foi atribuída à antropização nos locais de amostragem.

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