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Título: | Species diversity of edaphic mites (Acari: Oribatida) and effects of topography, soil properties and litter gradients on their qualitative and quantitative composition in 64 km2 of forest in Amazonia |
Autor: | Moraes, Jamile de Franklin, E. Morais, José Wellington Souza, Jorge Luiz Pereira |
Palavras-chave: | Abundance Anthropogenic Effect Biological Survey Clay Dominance Environmental Gradient Litter Mite Nature Reserve Ph Slope Angle Soil Property Spatial Distribution Species Diversity Species Richness Topographic Effect Altitude Animals Biodiversity Chemistry Geography Mite Ph Population Density Soil Tropic Climate Altitude Animal Biodiversity Geography Hydrogen-ion Concentration Mites Population Density Soil Tropical Climate Amazonas Amazonia Ducke Reserve Acari Archegozetes Longisetosus Galumna Oribatida Pergalumna Rostrozetes Scheloribates |
Data do documento: | 2011 |
Revista: | Experimental and Applied Acarology |
É parte de: | Volume 55, Número 1, Pags. 39-63 |
Abstract: | Small-scale spatial distribution of oribatid mites has been investigated in Amazonia. In addition, medium- and large-scale studies are needed to establish the utility of these mites in detecting natural environmental variability, and to distinguish this variability from anthropogenic impacts. We are expanding the knowledge about oribatid mites in a wet upland forest reserve, and investigate whether a standardized and integrated protocol is an efficient way to assess the effects of environmental variables on their qualitative and quantitative composition on a large spatial scale inside an ecological reserve in Central Amazonia, Brazil. Samples for Berlese-Tullgren extraction were taken in 72 plots of 250 × 6 m distributed over 64 km2. In total 3,182 adult individuals, from 82 species and 79 morphospecies were recorded, expanding the number of species known in the reserve from 149 to 254. Galumna, Rostrozetes and Scheloribates were the most speciose genera, and 57 species were rare. Rostrozetes ovulum, Pergalumna passimpuctata and Archegozetes longisetosus were the most abundant species, and the first two were the most frequent. Species number and abundance were not correlated with clay content, slope, pH and litter quantity. However, Principal Coordinate Analysis indicated that as the percentage of clay content, litter quantity and pH changed, the oribatid mite qualitative and quantitative composition also changed. The standardized protocol effectively captured the diversity, as we collected one of the largest registers of oribatid mites' species for Amazonia. Moreover, biological and ecological data were integrated to capture the effects of environmental variables accounting for their diversity and abundance. © 2011 Springer Science+Business Media B.V. |
DOI: | 10.1007/s10493-011-9451-7 |
Aparece nas coleções: | Artigos |
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