Diversity of mycobiota in colonies of different species of leaf-cutting ants and sampling sites across Argentina

Authors

  • Jorge A. Marfetán Laboratorio de Hormigas, Departamento de Ciencia y Tecnología, Universidad Nacional de Quilmes. Buenos Aires, Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET). Argentina. http://orcid.org/0000-0003-2192-1821
  • Patricia J. Folgarait Laboratorio de Hormigas, Departamento de Ciencia y Tecnología, Universidad Nacional de Quilmes. Buenos Aires, Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET). Argentina.

DOI:

https://doi.org/10.25260/EA.17.27.3.0.488

Abstract

Attine ants are a monophyletic group comprising more than 230 species, distributed exclusively in the New World. All higher Attini ants depend on the cultivation of fungus gardens for food, and those gardens are continuously exposed to alien microorganisms. The present work describes, for the first time, the composition, relative frequency and the richness of the fungal species comprising the mycobiota from the garden of the most abundant Acromyrmex species from different regions of Argentina. We also compared, using a multivariate approach, the mycobiota composition with the purpose of testing two hypotheses: 1) whether mycobiota is defined by the ant species, or 2) whether mycobiota is determined by the geographical region. We found that each fungal community had a particular composition and abundance: the species that were highly frequent in a community or site, could be rare or altogether absent in another community or site. Species richness, as well as the theoretical maximum richness, also changed with locations. Furthermore, we found that different ant species at the same site had similar mycobiotas, whereas the same ant species in distant locations had only a few fungal species in common. Therefore, we concluded that mycobiota composition changed considerably with geographical site and was not dependent on the ant species. Our results provide an additional understanding of the leaf cutting-ants system, confirming that the garden of leaf cutting ants nests is a complex and dynamic fungal community which is dependent on the site where it was located.

DOI: https://doi.org/10.25260/EA.17.27.3.0.488

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Diversidad de micobiota en diferentes especies de hormigas cortadoras de hojas y sitios de Argentina

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Published

2017-12-02

How to Cite

Marfetán, J. A., & Folgarait, P. J. (2017). Diversity of mycobiota in colonies of different species of leaf-cutting ants and sampling sites across Argentina. Ecología Austral, 27(3), 449–461. https://doi.org/10.25260/EA.17.27.3.0.488