Impacto del disturbio en las preferencias alimentarias y dominancia de las hormigas (Hymenoptera: Formicidae) en un bosque templado de México
DOI:
https://doi.org/10.22201/ib.20078706e.2024.95.5523Palabras clave:
Nidos de hormigas, Índice de dominancia, Hábitos alimenticios, Hipótesis de compensación, Carbohidratos, ProteínasResumen
Este estudio examina el impacto del disturbio en las preferencias alimentarias y dominancia de una comunidad de hormigas en un ecosistema templado en México, en bosque de encino nativo y pastizal inducido (vegetación perturbada). Se registraron los alimentos transportados por las hormigas a sus nidos. Estos datos fueron analizados utilizando pruebas de x2. Se colocaron cebos de atún y miel cerca de los nidos para registrar la presencia de hormigas. Utilizamos un modelo binomial para determinar si la probabilidad de encontrar una hormiga en los cebos se veía afectada por la vegetación, cebo o especie de hormiga. Los índices de dominancia se determinaron usando cebos. Se emplearon pruebas t y Anova para comparar los índices de dominancia entre tipos de vegetación, cebos y especies de hormigas. No hubo diferencias significativas en las preferencias alimentarias entre tipos de vegetación, pero algunas especies mostraron una preferencia por la miel (carbohidratos), que podría ser un recurso limitado a nivel del suelo. Las hormigas mostraron un comportamiento sumiso en ambos tipos de vegetación. Esta investigación
muestra que las hormigas podrían optimizar su ingesta de nutrientes, permitiéndoles sobrevivir bajo condiciones de disturbio, en lugar de aumentar su dominancia.
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