Substrate temperature constrains recruitment and trail following behavior in ants.

Journal of Chemical Ecology
Louise van OudenhoveXim Cerdá

Abstract

In many ant species, foragers use pheromones to communicate the location of resources to nestmates. Mass-recruiting species deposit long-lasting anonymous chemical trails, while group-recruiting species use temporary chemical trails. We studied how high temperature influenced the foraging behavior of a mass-recruiting species (Tapinoma nigerrimum) and a group-recruiting species (Aphaenogaster senilis) through pheromone decay. First, under controlled laboratory conditions, we examined the effect of temperature on the trail pheromone of both species. A substrate, simulating soil, marked with gaster extract was heated for 10 min. at 25°, 35°, 45°, or 55 °C and offered to workers in a choice test. Heating gaster extract reduced the trail following behavior of the mass-recruiters significantly more than that of the group-recruiters. Second, analyses of the chemicals present on the substrate indicated that most T. nigerrimum gaster secretions vanished at 25 °C, and only iridodials persisted up to 55 °C. By contrast, A. senilis secretions were less volatile and resisted better to elevated temperatures to some extent. However, at 55 °C, the only chemicals that persisted were nonadecene and nonadecane. Overall, our results suggest that ...Continue Reading

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Citations

Oct 25, 2013·Journal of the Royal Society, Interface·Daniel CamposXavier Espadaler
Nov 4, 2017·The Journal of Experimental Biology·Lucie DesmedtPatrizia d'Ettorre
Nov 18, 2017·The Journal of Experimental Biology·Alyssa Y StarkStephen P Yanoviak
May 5, 2017·Die Naturwissenschaften·Cristela Sánchez OmsRaphaël Boulay
Jan 31, 2017·Oecologia·Michelle Elise SpicerStephen P Yanoviak
May 24, 2020·The Journal of Animal Ecology·Irene VillaltaRaphaël Boulay
Mar 28, 2013·Ecology and Evolution·Katharine L StubleNathan J Sanders
Nov 20, 2016·Annual Review of Entomology·Raphaël BoulayThibaud Monnin

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