The Role of Parabiotic Ants and Environment on Epiphyte Composition and Protection in Ant Gardens

The Role of Parabiotic Ants and Environment on Epiphyte Composition and Protection in Ant Gardens

Author Leal, L. C. Autor UNIFESP Google Scholar
Jakovac, C. C. Google Scholar
Bobrowiec, P. E. D. Google Scholar
Camargo, J. L. C. Google Scholar
Peixoto, P. E. C. Google Scholar
Abstract Ant gardens (AGs) are a multi-partner specialized ant-plant interaction involving several ant and epiphyte species. Although studies on AGs have reported possible roles for some species in this system, there are unanswered questions regarding the process of epiphyte incorporation in the AGs and the role of less aggressive ant species in AG protection. In this study, we used AGs in the Brazilian Amazon forest formed by two parabiotic ant species to test a set of hypothesis regarding two main questions: 1) How is AG plant community composition affected by the surrounding environment? 2) Does Crematogaster levior play a role in the chemical detection of herbivory in the AGs? After identifying epiphytes occurring at AGs at the forest edge and in the interior, we found that ant gardens in each environment exhibited different compositions, and that plant species bearing oil or extrafloral nectar glands were more frequent in AGs located in the forest interior than in those at the forest edge. By performing experiments with volatile compounds emitted from injured epiphytes, we detected that only Camponotus femoratus was responsive, responding almost eight times faster in response to plant extracts than water treatments. Our results support the idea that environmental conditions affect ant preference for feeding resources provided by epiphytes and consequently shape the structure of the epiphyte community in AGs. On the other hand, the role of C. levior in AGs remains unknown, since it seems to play no direct or indirect role in AG protection.
Keywords Camponotus femoratus
Crematogaster levior
epiphytes
protective mutualism
partner selection
Amazon
Language English
Sponsor Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
Date 2017
Published in Sociobiology. Feira De Santana, v. 64, n. 3, p. 276-283, 2017.
ISSN 0361-6525 (Sherpa/Romeo, impact factor)
Publisher Univ Estadual Feira Santana
Extent 276-283
Origin http://dx.doi.org/10.13102/sociobiology.v64i3.1219
Access rights Open access Open Access
Type Article
Web of Science ID WOS:000413604500006
URI http://repositorio.unifesp.br/handle/11600/51274

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