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Revista mexicana de biodiversidad
versão On-line ISSN 2007-8706versão impressa ISSN 1870-3453
Resumo
RAMOS-DIAZ, Adriana; PALACIOS-VARGAS, José G. e PINZON-FLORIAN, Olga Patricia. Epiedaphic springtail diversity in Acacia mangium plantations and savannas in the Colombian Orinoquía. Rev. Mex. Biodiv. [online]. 2020, vol.91, e913276. Epub 01-Mar-2021. ISSN 2007-8706. https://doi.org/10.22201/ib.20078706e.2020.91.3276.
The afforestation of savannas, previously dedicated to extensive cattle ranching, with fast-growing forest species is a growing phenomenon in the Colombian Orinoquía. In order to estimate changes in the springtail communities due to the establishment of Acacia mangium in the savannas, their diversity in plantations of 1, 3 and 5 years was compared with savannas in a forestry project located in the municipality of Puerto Gaitán (Meta), during the dry and rainy season. Samples were obtained using pitfall traps exposed for 9 days in each season. Springtails richness and diversity among different plantations ages and savannas was estimated and compared in each season. Additionally, the composition was explained based on physicochemical variables of the soil and variables related to the structure of the plantations and management (RDA). Savanna afforestation produced changes in diversity and springtail assemblages. Differences among plantations and savannas were explained by changes in soil temperature and moisture, amount of clay, organic carbon, soil compaction and height of the plantation. It is concluded that early stages of the afforestation of savannas with A. mangium favors the diversity of springtails.
Palavras-chave : Forest management; Land use change; Community assembly.