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Dominance in a ground-dwelling ant community of banana agroecosystem

Carval Dominique, Cotte Violaine, Resmond Rémi, Perrin Benjamin, Tixier Philippe. 2016. Dominance in a ground-dwelling ant community of banana agroecosystem. Ecology and Evolution, 6 (23) : 8617-8631.

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Quartile : Q2, Sujet : ECOLOGY / Quartile : Q3, Sujet : EVOLUTIONARY BIOLOGY

Résumé : In tropical ecosystems, ants represent a substantial portion of the animal biomass and contribute to various ecosystem services, including pest regulation and pollination. Dominant ant species are known to determine the structure of ant communities by interfering in the foraging of other ant species. Using bait and pitfall trapping experiments, we performed a pattern analysis at a fine spatial scale of an ant community in a very simplified and homogeneous agroecosystem, that is, a single-crop banana field in Martinique (French West Indies). We found that the community structure was driven by three dominant species (Solenopsis geminata, Nylanderia guatemalensis, and Monomorium ebeninum) and two subdominant species (Pheidole fallax and Brachymyrmex patagonicus). Our results showed that dominant and subdominant species generally maintained numerical dominance at baits across time, although S. geminata, M. ebeninum, and B. patagonicus displayed better abilities to maintain dominance than P. fallax and N. guatemalensis. Almost all interspecific correlations between species abundances, except those between B. patagonicus and N. guatemalensis, were symmetrically negative, suggesting that interference competition prevails in this ground-dwelling ant community. However, we observed variations in the diurnal and nocturnal foraging activity and in the daily occurrence at baits, which may mitigate the effect of interference competition through the induction of spatial and temporal niche partitioning. This may explain the coexistence of dominant, subdominant, and subordinate species in this very simplified agroecosystem, limited in habitat structure and diversity.

Mots-clés Agrovoc : Musa, agroécosystème

Mots-clés géographiques Agrovoc : Martinique, Antilles françaises, France

Classification Agris : F01 - Culture des plantes

Champ stratégique Cirad : Axe 1 (2014-2018) - Agriculture écologiquement intensive

Agences de financement européennes : European Commission

Auteurs et affiliations

  • Carval Dominique, CIRAD-PERSYST-UPR GECO (FRA)
  • Cotte Violaine
  • Resmond Rémi
  • Perrin Benjamin
  • Tixier Philippe, CIRAD-PERSYST-UPR GECO (FRA) ORCID: 0000-0001-5147-9777

Source : Cirad-Agritrop (https://agritrop.cirad.fr/583773/)

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