Egg Dispersal in the Phasmatodea: Convergence in Chemical Signaling Strategies Between Plants and Animals?
Anthony O Stanton, Daniel A Dias, James C O'Hanlon
Journal of Chemical Ecology | SPRINGER | Published : 2015
Numerous tree species' seeds contain an 'elaiosome' that acts as a food reward for ants and thus induces dispersal of the seeds. Many stick and leaf insect species appear to have evolved a convergent adaptation for dispersal whereby the egg 'capitulum' serves to induce ants to pick up and carry their eggs. Here, we investigated whether the capitulum facilitates egg dispersal by ants in the Australian stick insect Eurycnema goliath. The total fatty acid composition of E. goliath egg capsules and egg capitula were characterized to identify potential signaling compounds. Removing capitula from E. goliath eggs significantly reduced the likelihood of eggs being carried into the nests of Rhytidopo..View full abstract
We are indebted to Lucy-Marie Kempson, Lucy O'Farrell, Amy Smart, Erin Lynch, and Daniel Kitanov for assistance with data collection and animal husbandry. Macquarie University, the Linnean Society of New South Wales, and the Orthopterists' Society provided funding to JC O'Hanlon. The authors are grateful to the Victorian Node of Metabolomics Australia, which is funded through Bioplatforms Australia Pty. Ltd., a National Collaborative Research Infrastructure Strategy (NCRIS), 5.1 Biomolecular platforms and informatics investment, and co-investment from the Victorian State Government and The University of Melbourne.