Identifying potential evolutionary relationships within a facultative lycaenid-ant system: Ant association, oviposition, and butterfly-ant conflict
2007
COLLIER, NEIL
Facultative associations are commonly encountered between ants and lycaenids, although the nature and patterns of associations are typically unclear. This study investigated a facultative symbiosis involving the lycaenid The clinesthes albocincta (Lycaenidae), its host plant Adriana quadripartita and Australian native ants. Ants in the genera Ochetellus and Iridomyrmex were most frequently found in association with T. albocincta larvae, although Iridomyrmex ants were found in much lower abundance than were ants in Ochetellus. The abundances of Ochetellus and Iridomyrmex were highly correlated with larval abundance, but not egg abundance. Observations and experiments recorded oviposition on male inflorescences on more than 95% of occasions, but oviposition was not greater on inflorescences with ants present. Behavioral assays showed that Iridomyrmex ants were aggressive towards female butterflies on significantly more occasions than were Ochetellus ants. These findings indicate potential evolutionary relationships between T. albocincta and two genera of ants that were abundant within the habitat.
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