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      Diversidad, fluctuación poblacional y plantas huésped de escolitinos (Coleoptera: Curculionidae) asociados con el agroecosistema cacao en Tabasco, México Translated title: Diversity, dynamic population and host plants of bark and ambrosia beetles (Coleoptera: Curculionidae) associated to the cocoa agroecosystem in Tabasco, Mexico

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          Abstract

          Se estudió la diversidad de escolitinos asociados con el agroecosistema cacao en Tabasco, México durante el año 2007. Los insectos adultos fueron recolectados en 4 localidades con trampas de alcohol etílico, trampas de atracción luminosa y captura directa sobre sus plantas huésped. Se recolectaron 19 263 ejemplares, pertenecientes a 51 especies y 26 géneros. Araptus hymenaeae y Cnesinus squamosus son nuevos registros para México. La máxima diversidad de insectos capturados con los 3 métodos de recolecta se obtuvo en El Bajío (H'=2.45 y Dmg=4.83), la mínima en Río Seco (H'=2.29) y Km. 21 (Dmg=3.85), y el máximo valor de equidad (J) lo obtuvo El Bajío (0.67). El índice de similitud de Sorensen (Is) mostró que los sitios de estudio tienden a presentar la misma composición de especies. Los índices de diversidad, equidad y similitud, aplicados a la fauna de escolitinos capturados con cada uno de los métodos empleados, mostraron diferencias, excepto en las trampas de alcohol. La fluctuación presenta picos poblacionales marcados al inicio y al final del año de estudio. Las plantas en las que se recolectó el mayor número de especies fueron Theobroma cacao (16) y Swietenia macrophylla (13).

          Translated abstract

          The bark and ambrosia beetle diversity in cocoa agroecosystems was studied during 2007 in Tabasco, Mexico. Adult insects were gathered in 4 localities with ethanol and light traps and by direct collecting in their host plants. 19 263 specimens were gathered, belonging to 51 species and 26 genera. Araptus hymenaeae and Cnesinus squamosus are new records for Mexico. The maximum diversity of insects captured with the 3 collecting methods was obtained in El Bajío (H'=2.45 and Dmg=4.83), the minimum in Río Seco (H'=2.29) and Km. 21 (Dmg=3.85), and the maximum value of justness (J) was obtained in El Bajío (0.67). The Sorensen similarity index (Is) showed that the study places present the same species composition. The diversity, justness and similarity indices, applied to the beetles captured with each method, showed differences except with the alcohol traps. The beetles present marked populational picks at the beginning and at the end of the year. The biggest number of Scolytinae species were gathered in the host Theobroma cocoa (16 species) and Swietenia macrophylla (13).

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          Métodos para medir la biodiversidad

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            Diversidad ecológica y su medición

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                Author and article information

                Journal
                rmbiodiv
                Revista mexicana de biodiversidad
                Rev. Mex. Biodiv.
                Instituto de Biología (México, DF, Mexico )
                1870-3453
                2007-8706
                December 2009
                : 80
                : 3
                : 779-791
                Affiliations
                [01] Texcoco Estado de México orgnameColegio de Postgraduados, Campus Montecillo México
                [02] H. Cárdenas Tabasco orgnameColegio de Postgraduados, Campus Tabasco México
                Article
                S1870-34532009000300020 S1870-3453(09)08000300020
                0b377bf7-f04b-49f9-bc66-702d8432f36a

                This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

                History
                : 11 March 2009
                : 27 May 2009
                Page count
                Figures: 0, Tables: 0, Equations: 0, References: 26, Pages: 13
                Product

                SciELO Mexico

                Categories
                Ecología

                bark and ambrosia beetle agroecosystem,insects,abundancia,Tabasco,riqueza,richness,agroecosistema,escolitinos,abundance

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