A medium-spatial scale distribution pattern of Pseudoscorpionida (Arachnida) in a gradient of topography (altitude and inclination), soil factors, and litter in a central Amazonia forest reserve, Brazil



Título del documento: A medium-spatial scale distribution pattern of Pseudoscorpionida (Arachnida) in a gradient of topography (altitude and inclination), soil factors, and litter in a central Amazonia forest reserve, Brazil
Revista: Brazilian journal of biology
Base de datos: PERIÓDICA
Número de sistema: 000276036
ISSN: 1519-6984
Autores: 1

2
Instituciones: 1Universidade Federal do Amazonas, Departamento de Biologia, Manaus, Amazonas. Brasil
2Instituto Nacional de Pesquisas da Amazonia, Departamento de Entomologia, Manaus, Amazonas. Brasil
Año:
Periodo: Ago
Volumen: 66
Número: 3
Paginación: 791-802
País: Brasil
Idioma: Inglés
Tipo de documento: Artículo
Enfoque: Experimental
Resumen en inglés In Amazonia, nothing is known about the distribution of the invertebrates on a medium-spatial scale pattern. In a trail system of 64 km² at Ducke Reserve, we sampled 72 transects using the hand-sorting method and Berlese-Tullgren extraction. The reserve possesses ecosystems of "terra-firme" forest and the trail system represents a gradient of topographic soil factors and vegetation, avoiding categorizations. Considering the abundance and diversity of Pseudoscorpionida, we investigated the relation of the community to environmental factors tested (topography, clay percentage, litter, and soil pH), to the two major drainage basins of the reserve, and if these invertebrates can be used as biological indicators to monitor changes. We registered two species for the first time in the reserve, increasing the known diversity to 17 species. The lack of correlation with the predictor variables and the large home range, indicate that pseudoscorpions are not good biological indicators in the reserve. As the eastern and western watersheds are not separate management units for the community, our results show that they are generalist predators. In spite of our results and lack of knowledge concerning their biology, life history and taxonomy, pseudoscorpions are cosmopolitan and easy to find and measure. Compared with previous studies in the reserve, they have a consistent pattern of abundance and diversity throughout the years showing the stability of the community which can be checked mainly by comparison with environmental changes tha
Disciplinas: Agrociencias,
Biología
Palabras clave: Suelos,
Artrópodos,
Ecología,
Amazonas,
Pseudoescorpiones,
Bioindicadores,
Brasil
Keyword: Agricultural sciences,
Biology,
Soils,
Arthropods,
Ecology,
Amazon,
Brazil,
Pseudoscorpions,
Bioindicators
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