Caracterización de comunidad de arañas tejedoras en la reserva natural de Yotoco y en el enclave xerofitico Dagua-Atuncela en el municipio de Dagua en el Valle del Cauca
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Reina Copeta, Ruth
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En la Reserva Natural Bosque de Yotoco y en el enclave Xerofitico Atuncela en el municipio de Dagua, en los meses de julio y septiembre de 2014 y en febrero y marzo de 2015, se realizaron varios muestreos con el fin de determinar la comunidad de arañas tejedoras asociadas a cuatro familias de plantas (Piperaceae, Melastomataceae, Cytheaceae, Arecaceae) presentes en dos zonas. A través de tres técnicas de muestreo (colecta manual aérea, colecta manual rasante y agitación de vegetación arbustiva) se colectó un total de 907 arañas, de las cuales se seleccionaron 305 adultos para hacer el correspondiente análisis estadístico. Los 602 individuos restantes no fueron tenidos en cuenta por ser inmaduros, lo que dificulta la asignación de cada uno de ellos a las taxas ya establecidos. Las arañas encontradas se agruparon en 6 familias, en 27 géneros, 29 morfoespecies. La familia Pholcidae se encontró en todos los muestreos y en las cuatro familias de plantas trabajadas. Se pudo establecer que la zona alta (±1700m.s.n.m) de la RNFBY presenta una mayor abundancia que la zona baja (±1400m.s.n.m) de RNFBY.
//Abstract: In Yotoco Forest Nature Reserve and the Xerofítico enclave Atuncela in the municipality of Dagua, in the months of July and September 2014 and in February and March 2015, several surveys were conducted in order to determine the weaver spider community associated with four families of plants (Piperaceae, Melastomataceae, Cytheaceae, Arecaceae) present in two zones. Through three sampling techniques (air hand harvested, ground shaking hand harvested and shrubs). It was collected 907 spiders, of which 305 adults were selected to the appropriate statistical analysis was collected. The remaining 602 individuals were not taken into account for being immature, which makes assigning each to the established taxa. Spiders found 29 species were grouped in 6 families, 27 genera. The Pholcidae family was found in all samples and the aforementioned four families of worked plants. It was established that the upper area (± 1700m.snm) of RNFBY has a greater abundance than the lower area (± 1400m.snm) of RNFBY and the sampling period showed a range of 0.8 according to the Simpson index is the wet season (September and March).
//Abstract: In Yotoco Forest Nature Reserve and the Xerofítico enclave Atuncela in the municipality of Dagua, in the months of July and September 2014 and in February and March 2015, several surveys were conducted in order to determine the weaver spider community associated with four families of plants (Piperaceae, Melastomataceae, Cytheaceae, Arecaceae) present in two zones. Through three sampling techniques (air hand harvested, ground shaking hand harvested and shrubs). It was collected 907 spiders, of which 305 adults were selected to the appropriate statistical analysis was collected. The remaining 602 individuals were not taken into account for being immature, which makes assigning each to the established taxa. Spiders found 29 species were grouped in 6 families, 27 genera. The Pholcidae family was found in all samples and the aforementioned four families of worked plants. It was established that the upper area (± 1700m.snm) of RNFBY has a greater abundance than the lower area (± 1400m.snm) of RNFBY and the sampling period showed a range of 0.8 according to the Simpson index is the wet season (September and March).