Titlebar

Export bibliographic data
Literature by the same author
plus on the publication server
plus at Google Scholar

 

(E)-Methylgeranate, a chemical signal of juvenile hormone titre and its role in the partner recognition system of burying beetles

Title data

Haberer, Wolf ; Steiger, Sandra ; Müller, Josef K.:
(E)-Methylgeranate, a chemical signal of juvenile hormone titre and its role in the partner recognition system of burying beetles.
In: Animal Behaviour. Vol. 79 (2010) Issue 1 . - pp. 17-24.
ISSN 0003-3472
DOI: https://doi.org/10.1016/j.anbehav.2009.09.019

Abstract in another language

In recent years, studies have shown that animals can communicate their physiological state or condition by means of chemical signals. However, as the chemicals involved in the condition-dependent signals have rarely been identified, evolutionary mechanisms that ensure their reliability are not well understood. We identified a volatile chemical signal that may serve as a reliable indicator of hormonal state in burying beetles, and is involved in their partner recognition system. Burying beetles reproducing on carcasses are able to distinguish between their breeding partners and infanticidal conspecifics. This discrimination depends on breeding status, which is positively linked to juvenile hormone III (JH III) titre. Breeding Nicrophorus vespilloides beetles, in contrast to nonbreeding ones, emitted considerable amounts of (E)-methylgeranate. The amount of emitted (E)-methylgeranate was positively correlated with juvenile hormone titres known from other burying beetle studies. Moreover, our behavioural experiments showed that dummies treated with methylgeranate induced tolerant behaviour, whereas control dummies were treated aggressively. The fact that (E)-methylgeranate and JH III share a conspicuous structural similarity and the same biosynthetic pathway may explain how the reliability of the signal for JH titre is ensured. We discuss the implications of our results in the light of theoretical work on the evolution of chemical communication, particularly on the origin of chemical signals.

Further data

Item Type: Article in a journal
Refereed: Yes
Additional notes: BAYCEER147306
Keywords: breeding status; burying beetle; chemical communication; chemical signal; juvenile hormone; methylgeranate; Nicrophorus vespilloides
Institutions of the University: Faculties > Faculty of Biology, Chemistry and Earth Sciences
Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Biology > Chair Animal Ecology II - Evolutionary Animal Ecology > Chair Animal Ecology II - Evolutionary Animal Ecology - Univ.-Prof. Dr. Sandra Steiger
Research Institutions
Research Institutions > Research Centres
Research Institutions > Research Centres > Bayreuth Center of Ecology and Environmental Research- BayCEER
Result of work at the UBT: No
DDC Subjects: 500 Science
Date Deposited: 15 Apr 2019 08:49
Last Modified: 15 Apr 2019 08:49
URI: https://eref.uni-bayreuth.de/id/eprint/48394