Trail-following behavior is a key to ecological success of termites, allowing them to orient themselves between the nesting and foraging sites. This behavior is controlled by specific trail-following pheromones produced by the abdominal sternal gland occurring in all termite species and developmental stages. Trail-following communication has been studied in a broad spectrum of species, but the "higher" termites (i.e. Termitidae) from the subfamily Syntermitinae remain surprisingly neglected. To fill this gap, we studied the trail-following pheromone in six genera and nine species of Syntermitinae. Our chemical and behavioral experiments showed that (3Z,6Z,8E)-dodeca-3,6,8-trien-1-ol is the single component of the pheromone of all the termite species studied, except for Silvestritermes euamignathus. This species produces both (3Z,6Z)-dodeca-3,6-dien-1-ol and neocembrene, but only (3Z,6Z)-dodeca-3,6-dien-1-ol elicits trail-following behavior. Our results indicate the importance of (3Z,6Z,8E)-dodeca-3,6,8-trien-1-ol, the most widespread communication compound in termites, but also the repeated switches to other common pheromones as exemplified by S. euamignathus.
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http://dx.doi.org/10.1007/s10886-020-01180-8 | DOI Listing |
Sci Rep
April 2024
Center for Mind/Brain Sciences (CIMeC), University of Trento, Rovereto, Italy.
In this work, we identified the trail pheromone of the ant Crematogaster scutellaris. We combined gas chromatography-mass spectrometry analysis of extracts from the hind tibia, the location of the respective glands, with automated trail following assays. The study found tridecan-2-ol to be the strongest discriminator between hind tibia and other body part extracts.
View Article and Find Full Text PDFMolecules
February 2024
Faculty of Pharmaceutical Sciences, Khon Kaen University, Khon Kaen 40002, Thailand.
Sol g 2 is the major protein in fire ant venom. It shares the highest sequence identity with Sol i 2 () and shares high structural homology with LmaPBP (pheromone-binding protein (PBP) from the cockroach ). We examined the specific Sol g 2 protein ligands from fire ant venom.
View Article and Find Full Text PDFJ Exp Biol
January 2024
Department of Psychology, University of Alberta, Edmonton, AB, Canada, T6G 2E9.
Maintaining positional estimates of goal locations is a fundamental task for navigating animals. Diverse animal groups, including both vertebrates and invertebrates, can accomplish this through path integration. During path integration, navigators integrate movement changes, tracking both distance and direction, to generate a spatial estimate of their start location, or global vector, allowing efficient direct return travel without retracing the outbound route.
View Article and Find Full Text PDFLearn Behav
March 2024
Department of Psychology, University of Alberta, Edmonton, Alberta, Canada.
Ant species exhibit behavioural commonalities when solving navigational challenges for successful orientation and to reach goal locations. These behaviours rely on a shared toolbox of navigational strategies that guide individuals under an array of motivational contexts. The mechanisms that support these behaviours, however, are tuned to each species' habitat and ecology with some exhibiting unique navigational behaviours.
View Article and Find Full Text PDFJ Chem Ecol
December 2023
Laboratory of Experimental and Comparative Ethology, LEEC, UR 4443, University Sorbonne Paris Nord, Villetaneuse, France.
Stylotermitidae appear peculiar among all termites, feeding in trunks of living trees in South Asia only. The difficulty to collect them limits the ability to study them, and they thus still belong to critically unknown groups in respect to their biology. We used a combination of microscopic observations, chemical analysis and behavioural tests, to determine the source and chemical nature of the trail-following pheromone of Stylotermes faveolus from India and S.
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