COLEOPTERA: Estafilínidos (Coleoptera: Staphylinidae) necrófilos de Malinalco, Estado de México
DOI:
https://doi.org/10.32870/dugesiana.v18i1.3992Keywords:
Staphylininae, Paederinae, necrotrampa, bosque tropical caucifolio, bosque de pino-encinoAbstract
Se estudiaron los estafílínidos necrófilos de Malinalco, Estado de México, capturados mensualmente de agosto de 2005 a julio de 2006 empleando necrotrampas, instaladas en cinco localidades en un gradiente altitudinal con tres tipos de vegetación (bosque de pino-encino, bosque tropical caducifolio y pastizal inducido). Se capturaron 5,390 individuos agrupados en 11 subfamilias, 37 géneros y 62 especies. Las subfamilias más abundantes fueron Staphylininae (60.4%), Omaliinae (18.6%), Oxytelinae (18.6%) y Tachyporinae (1.6%), las restantes representaron 0.9 %. Diez especies agruparon el 88.4% de la abundancia total, 15 el 9.7% y 37 el 1.9%. La subfamilia Staphylininae fue la más rica en especies con 40, seguida por Paederinae (8) y Tachyporinae (5), las subfamilias restantes agruparon menos de tres. La abundancia y la riqueza específica de Staphylinidae tuvieron sus mayores picos durante la época de lluvias, Omaliinae fue exclusiva de la época seca. Staphylininae se encontró preferentemente en el bosque tropical caducifolio, mientras que Omaliinae y Oxytelinae fueron más comunes en el bosque de pino-encino. Se recolectaron entre 37 y 39 especies en tres sitios ubicados en el bosque tropical caducifolio, le siguió el sitio ubicado en el bosque de pino-encino con 35 y la menor riqueza se obtuvo en la localidad del pastizal inducido con 26. Alrededor del 68% de las especies del bosque de pino-encino se distribuyeron también en el bosque tropical caducifolio, y 57% en el hábitat perturbado de pastizal inducido, donde B. rufipennis fue la especie dominante. Oligotergus fasciatus (Nordmann, 1837) y Xanthopygus xanthopygus (Nordmann, 1837) son primeros registros para el estado.
Published
2015-09-23
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