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Mechanisms of carbohydrate‐fuelled ecological dominance in a tropical rainforest canopy‐foraging ant

MCGLYNN, TERRENCE P ; PARRA, ERICA L

Ecological entomology, 2016-04, Vol.41 (2), p.226-230 [Periódico revisado por pares]

Oxford, UK: Blackwell Publishing Ltd

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  • Título:
    Mechanisms of carbohydrate‐fuelled ecological dominance in a tropical rainforest canopy‐foraging ant
  • Autor: MCGLYNN, TERRENCE P ; PARRA, ERICA L
  • Assuntos: Aggression ; canopy ; carbohydrates ; carbon ; competition ; density ; dietary carbohydrate ; foraging ; Formicidae ; Hypotheses ; Metabolism ; nectar ; omnivores ; omnivory ; Paraponera ; Paraponera clavata ; predation ; Rainforests ; Success ; tempo ; tropical rain forests
  • É parte de: Ecological entomology, 2016-04, Vol.41 (2), p.226-230
  • Notas: http://dx.doi.org/10.1111/een.12294
    ArticleID:EEN12294
    istex:72D3BCD591FF626FC4729AD03ACE8D68087EE80C
    CSUDH Office of Undergraduate Research, Scholarship and Creative Activity
    National Science Foundation - No. OISE-1261015; HRD-1302873
    ark:/67375/WNG-9VTKX169-8
    ObjectType-Article-1
    SourceType-Scholarly Journals-1
    ObjectType-Feature-2
    content type line 23
  • Descrição: 1. Canopy‐foraging ants have carbohydrate‐rich diets and the stoichiometric excess of carbon may result in energetic allocation decisions that facilitate ecological dominance. 2. If dietary carbohydrates facilitate ecological dominance in canopy ants, then the mechanism for this relationship is unknown. 3. Four hypotheses were posit that may explain how a carbohydrate‐rich diet might facilitate ecological dominance in canopy ants: Aggressive Defense, Metabolic Fuel, Foraging Success, and Prey Acquisition. 4. To assess these hypotheses, experiments were conducted on the canopy‐foraging bullet ant, Paraponera clavata (Fabricius), an omnivorous species that demonstrates high variability in the relative contribution of carbohydrates to the diets of colonies. 5. No support was found for the Aggressive Defense, Metabolic Fuel and Prey Acquisition hypotheses. 6. The Foraging Success hypothesis was supported, as the proportion of nectar in the diet predicted the overall foraging success. 7. It was argued that there is no explicit advantage in the exploitation of nectar over other food resources, other than the fact that it is the most accessible food resource in the rainforest canopy.
  • Editor: Oxford, UK: Blackwell Publishing Ltd
  • Idioma: Inglês
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  • Realização: ABCD-USP USP   Logos de Redes Sociais: Freepik

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