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      Oribátidos, colémbolos y hormigas como indicadores de perturbación del suelo en sistemas de producción agrícola Translated title: Oribatids, collembola and ants as indicators of soil disturbance in agricultural production systems

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          Abstract

          Resumen Se comparó la abundancia, riqueza y diversidad de oribátidos, colémbolos y hormigas como indicadores de perturbación del suelo encontrados bajo sistemas de manejo mínimo (tradicional), manejo en transición y manejo tecnificado del cultivo de mango, así como el sistema de manejo tecnificado de la caña de azúcar en la región Centro de Veracruz, México. En cada sistema de manejo se tomaron muestras de suelo y hojarasca, para colectar artrópodos mediante el método de embudos de Berlese-Tullgren. Los muestreos se realizaron en primavera, verano e invierno durante el 2017 y 2018. Las especies con mayor abundancia fueron los ácaros Ceratozetes sp., Archegozetes longisetosus, Scheloribates laticlava, Paropanolophus sp. y Pseudoparasitus sp., los colémbolos Pseudosinella sp. y Seira sp., y las hormigas Solenopsis conjurata, https://www.facebook.com/isastoppr/videos/2280266608886864colémbolos y hormigas fueron más abundantes bajo el sistema de manejo mínimo seguido por manejo en transición, y por último en los sistemas de manejo tecnificado de mango y caña de azúcar. En cambio, los oribátidos fueron más abundantes en el sistema de manejo tecnificado del cultivo de mango. El sistema de manejo tecnificado con caña de azúcar con promedio de 12.3 individuos, 1.3 especies y 0.26 de diversidad fue significativamente inferior a los otros sistemas (abundancia, F3,112 = 7.2, p = 0.0001; riqueza, F3,112 = 13.3, p = 0.0001; diversidad, F3,112 = 13.2, p = 0.0001), los cuales no presentaron diferencias significativas entre sí (p >0.05).

          Translated abstract

          Abstract The abundance, richness and diversity of oribatids, collembola and ants were compared as indicators of soil disturbance found under (traditional) minimal management systems, transition management and technified handling of the mango crop, as well as in the technified management system of sugarcane in the Central Veracruz region in Mexico. In each management system, soil and litter samples were taken, in which arthropods were collected using the Berlese-Tullgren funnels method. The samplings were carried out in three seasons of the spring, summer and winter for 2017 and 2018. The most abundant species were the mites Ceratozetes sp., Archegozetes longisetosus, Scheloribates laticlava, Paropanolophus sp. and Pseudoparasitus sp., Collembola Pseudosinella sp. and Seira sp., and the ants Solenopsis conjurata, Solenopsis terricola, Pyramica brevicornis and Pachycondyla harpax. Colémbolos and ants were more abundant under the mínimum management system followed by management in transition, and finally in the systems of technified management of mango and sugarcane. On the other hand, the oribatids were more abundant in the management system of mango cultivation. The management system technified with sugar cane had an average of 12.3 individuals, 1.3 species and amount of 0.26 diversity, which was significantly lower than the other systems (abundance, F3,112 = 7.2, p = 0.0001, richness, F3,112 = 13.3, p = 0.0001, diversity, F3,112 = 13.2, p = 0.0001), which did not show significant differences among themselves (p > 0.05).

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          Loss of soil (macro)fauna due to the expansion of Brazilian sugarcane acreage

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            Long-term and realistic global change manipulations had low impact on diversity of soil biota in temperate heathland

            In a dry heathland ecosystem we manipulated temperature (warming), precipitation (drought) and atmospheric concentration of CO2 in a full-factorial experiment in order to investigate changes in below-ground biodiversity as a result of future climate change. We investigated the responses in community diversity of nematodes, enchytraeids, collembolans and oribatid mites at two and eight years of manipulations. We used a structural equation modelling (SEM) approach analyzing the three manipulations, soil moisture and temperature, and seven soil biological and chemical variables. The analysis revealed a persistent and positive effect of elevated CO2 on litter C:N ratio. After two years of treatment, the fungi to bacteria ratio was increased by warming, and the diversities within oribatid mites, collembolans and nematode groups were all affected by elevated CO2 mediated through increased litter C:N ratio. After eight years of treatment, however, the CO2-increased litter C:N ratio did not influence the diversity in any of the four fauna groups. The number of significant correlations between treatments, food source quality, and soil biota diversities was reduced from six to three after two and eight years, respectively. These results suggest a remarkable resilience within the soil biota against global climate change treatments in the long term.
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              Efecto del uso de suelo en las hormigas (Formicidae: Hymenoptera) de Tikinmul, Campeche, México

              Se comparó el efecto del uso de suelo sobre la mirmecofauna del ejido de Tikinmul, Campeche, México. El estudio se llevó a cabo en monocultivos de cedro y huertos caseros, durante la época seca y lluviosa. Para la colecta de especies se utilizó el método Tropical Soil Biology and Fertility (TS-BF) modificado para sistemas agroforestales. Se encontraron un total de 37 morfoespecies, de las cuales nueve son exclusivas de cada uno de los dos sistemas, mientras 19 están presentes en ambos. Se observa una similitud (Sörensen) de 60.4% entre sistemas y 68% entre épocas. La subfamilia Myrmicinae con 8 géneros y 17 especies fue la mejor representada en el estudio. Solenopsis geminata y Dorymyrmex sp. fueron especies dominantes e indicadoras del monocultivo. La densidad de hormigas fue más alta en los monocultivos. No se encontró relación directa de la intensidad de manejo con la riqueza de especies. La cantidad de hojarasca se muestra como el factor determinante de abundancia de las hormigas. Los agroquímicos afectan de manera indirecta a sus poblaciones.
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                Author and article information

                Contributors
                Role: ND
                Role: ND
                Role: ND
                Role: ND
                Journal
                era
                Ecosistemas y recursos agropecuarios
                Ecosistemas y recur. agropecuarios
                Universidad Juárez Autónoma de Tabasco, Dirección de Investigación y Posgrado (Villahermosa, Tabasco, Mexico )
                2007-9028
                2007-901X
                August 2019
                : 6
                : 17
                : 231-241
                Affiliations
                [1] Córdoba Veracruz orgnameINIFAP orgdiv1CIRGOC México
                [3] orgnameColegio de Postgraduados orgdiv1Campus Veracruz Mexico
                [2] Veracruz orgnameTecnológico Nacional de México México
                Article
                S2007-90282019000200231
                10.19136/era.a6n17.2011
                73cef23d-34d2-4436-8821-075ed317b141

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

                History
                : 13 February 2019
                : 11 October 2018
                Page count
                Figures: 0, Tables: 0, Equations: 0, References: 29, Pages: 11
                Product

                SciELO Mexico

                Categories
                Artículo científico

                Agroecosystems,edaphic fauna,microarthropods,soil,suelo,microartrópodos impacto ambiental,fauna edáfica,Agroecosistemas,environmental impact

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