Revista de Biología Tropical ISSN Impreso: 0034-7744 ISSN electrónico: 2215-2075

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Differential effects of land use on ant and herbivore insect communities associated with Caryocar brasiliense (Caryocaraceae)

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Keywords

complejidad ambiental
manejo de hábitat
diversidad de insectos
árboles de “pequi”
interacciones tri-tróficas.
environmental complexity
habitat management
insect diversity
pequi trees
tri-trophic interactions

How to Cite

Neves, F. S., Braga, R. F., Araújo, L. S., Campos, R. I., & Fagundes, M. (2012). Differential effects of land use on ant and herbivore insect communities associated with Caryocar brasiliense (Caryocaraceae). Revista De Biología Tropical, 60(3), 1065–1073. https://doi.org/10.15517/rbt.v60i3.1758 (Original work published September 7, 2012)

Abstract

Simplification of natural habitats leads to a modification of the community associated with a host plant. Pequi trees (Caryocar brasiliense) are common to find in central Brazil, especially in the middle of monocultures, such as soy, corn, pasturelands or Eucalyptus plantations. On this scenario we hypothesized that habitat modification differentially affects the diversity of ants and herbivore insects associated with this species. The aim of the work was to test if C. brasiliense trees located in human modified habitats, support a lower species richness and abundance of ants, and a greater species richness and abundance of insect herbivores, compared to preserved cerrado habitats. The study was conducted in a Cerrado area located in Northern Minas Gerais State, Brazil. Ants and herbivore insects were collected monthly during 2005 using beating technique. The results showed that ant species richness was higher in pequi trees located in preserved Cerrado, followed by trees in pastureland and Eucalyptus plantation, respectively. The ant abundance was lower in the Eucalyptus plantation but no difference in ant abundance was observed between trees in pastureland and the preserved Cerrado. Moreover, herbivore insects exhibited lower number of species and individuals in trees located in the preserved Cerrado than in the pastureland and Eucalyptus plantation. We concluded that habitats simplified by human activities may result in diversity loss and may change species interactions.
https://doi.org/10.15517/rbt.v60i3.1758
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