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      Ecological patterns in necrophilous Staphylinidae (Insecta: Coleoptera) from Tlayacapan, Morelos, México

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          Abstract

          Necrophilous Staphylinidae were studied using carrion traps model NTP-80 at five sites in Tlayacapan, Morelos state, México. A total of 5,192 specimens belonging to 76 species were collected. Three sites, 1 (pine-oak forest), 3 (cloud forest), and 4 (tropical deciduous forest) had little temperature variation, high humidity and relatively undisturbed conditions; in contrast, sites 2 (pine forest) and 5 (cultivated area and tropical deciduous forest mixture) had greater temperature variation, lower humidity and more disturbance. Highest species richness and abundance were recorded in sites 1, 3 and 4, possibly because of more abundant food resources, microhabitats and stable favorable abiotic conditions. Maximum species richness and abundance occurred during the rainy season except at site 4, which had dry season peaks; many staphylinids are concentrated in the most humid part of this site, seeking resources available only there during the dry season. The faunas of sites 3 and 4 were most similar, that of site 2 least similar to the others. The richer faunas of sites 1, 3, and 4 suggest that most necrophilous staphylinids prefer less disturbed and moister sites. Dry season moisture levels may be an important factor limiting the distribution and/or activity of some species.

          Translated abstract

          Se estudiaron los Staphylinidae necrófilos en cinco sitios de Tlayacapan, Morelos, México. Se colectaron 5,192 ejemplares de 76 especies, utilizando necrotrampas modelo NTP-80. Los sitios 1 (bosque de pino-encino), 3 (bosque mesófilo de montaña) y 4 (bosque tropical caducifolio) presentaron menor grado de perturbación, poca variación de temperatura y alta humedad; en contraste, los sitios 2 (bosque de pino) y 5 (ecotono entre cultivos y bosque tropical caducifolio) presentaron mayor perturbación, alta variación de temperatura y baja humedad. La mayor riqueza de especies, abundancia y diversidad se registró en los primeros sitios (1, 3 y 4) posiblemente debido a la mayor abundancia de alimento, refugios y a las condiciones abióticas más estables y favorables. La mayor riqueza de especies y abundancia ocurrió durante la época de lluvias en todas los sitios, excepto en el sitio 4, donde el mayor pico de abundancia fue en la época seca debido a que los recursos se concentran en la parte más húmeda de este lugar. Los resultados sugieren que los estafilínidos necrófilos se distribuyen preferentemente en sitios poco perturbados y muy húmedos. Los niveles de humedad durante la época seca pueden ser un factor limitante en la distribución y/o actividad de algunas especies.

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          Most cited references48

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          Ecological Diversity and Its Measurement

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            Vegetación de México

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              Ecological diversity and its mesasurement

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                Author and article information

                Contributors
                Role: ND
                Journal
                azm
                Acta zoológica mexicana
                Acta Zool. Mex
                Instituto de Ecología A.C.
                0065-1737
                2003
                : 0
                : 89
                : 69-83
                Affiliations
                [1 ] Universidad Autónoma del Estado de Hidalgo México
                Article
                S0065-17372003000200006
                41fdf9d7-5d68-4120-adf8-22774cae4d05

                This work is licensed under a Creative Commons Attribution-NonCommercial 3.0 International License.

                History
                Categories
                Zoology

                Animal science & Zoology
                Staphylinidae,necrófilos,patrones ecológicos,Tlapacoyan,México,necrophilous,ecological patterns,Mexico

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