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Larval Rearing Temperature Influences Amount and Composition of the Marking Pheromone of the Male Beewolf, Philanthus triangulum

Pheromones play an important role for courtship and mating in many insect species, and they are shaped by a complex interaction of genetic and environmental factors. Developmental temperature is known to have a strong influence on adult life history, morphology, and physiology, but little is known a...

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Autores principales: Roeser-Mueller, Kerstin, Strohm, Erhard, Kaltenpoth, Martin
Formato: Online Artículo Texto
Lenguaje:English
Publicado: University of Wisconsin Library 2010
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3383414/
https://www.ncbi.nlm.nih.gov/pubmed/20673192
http://dx.doi.org/10.1673/031.010.7401
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author Roeser-Mueller, Kerstin
Strohm, Erhard
Kaltenpoth, Martin
author_facet Roeser-Mueller, Kerstin
Strohm, Erhard
Kaltenpoth, Martin
author_sort Roeser-Mueller, Kerstin
collection PubMed
description Pheromones play an important role for courtship and mating in many insect species, and they are shaped by a complex interaction of genetic and environmental factors. Developmental temperature is known to have a strong influence on adult life history, morphology, and physiology, but little is known about its effect on pheromone characteristics. In the present study, the influence of temperature during larval development on the amount and composition of the complex marking pheromone from the cephalic glands of the adult male beewolf, Philanthus triangulum F. (Hymenoptera: Crabronidae), was investigated. Additionally, the effects of temperature on several life-history traits were examined. European beewolf larvae were reared at three constant temperatures (20, 25, and 30° C). Males reared at 20° C showed longer development times and higher mortality, suggesting that low temperatures constitute stressful conditions for developing larvae. After eclosion, the amount and composition of the scent marking secretion of the adult males was analyzed by coupled gas chromatography-mass spectrometry. Males that had been reared at 20° C had significantly less secretion than individuals reared under warmer conditions (25° C and 30° C). Furthermore, larval rearing temperature had a significant effect on the composition of the adult males' pheromone gland content, with warmer rearing conditions leading to higher relative amounts of compounds with high molecular weight. The results show that the temperature during larval development significantly affected the amount and composition of the content of the male pheromone glands, probably due to physiological constraints and competing processes for limited energetic resources. Thus, the pheromone gland content may contain information on developmental conditions of males, which may have consequences for female mate choice decisions and male reproductive success.
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spelling pubmed-33834142012-06-28 Larval Rearing Temperature Influences Amount and Composition of the Marking Pheromone of the Male Beewolf, Philanthus triangulum Roeser-Mueller, Kerstin Strohm, Erhard Kaltenpoth, Martin J Insect Sci Article Pheromones play an important role for courtship and mating in many insect species, and they are shaped by a complex interaction of genetic and environmental factors. Developmental temperature is known to have a strong influence on adult life history, morphology, and physiology, but little is known about its effect on pheromone characteristics. In the present study, the influence of temperature during larval development on the amount and composition of the complex marking pheromone from the cephalic glands of the adult male beewolf, Philanthus triangulum F. (Hymenoptera: Crabronidae), was investigated. Additionally, the effects of temperature on several life-history traits were examined. European beewolf larvae were reared at three constant temperatures (20, 25, and 30° C). Males reared at 20° C showed longer development times and higher mortality, suggesting that low temperatures constitute stressful conditions for developing larvae. After eclosion, the amount and composition of the scent marking secretion of the adult males was analyzed by coupled gas chromatography-mass spectrometry. Males that had been reared at 20° C had significantly less secretion than individuals reared under warmer conditions (25° C and 30° C). Furthermore, larval rearing temperature had a significant effect on the composition of the adult males' pheromone gland content, with warmer rearing conditions leading to higher relative amounts of compounds with high molecular weight. The results show that the temperature during larval development significantly affected the amount and composition of the content of the male pheromone glands, probably due to physiological constraints and competing processes for limited energetic resources. Thus, the pheromone gland content may contain information on developmental conditions of males, which may have consequences for female mate choice decisions and male reproductive success. University of Wisconsin Library 2010-06-25 /pmc/articles/PMC3383414/ /pubmed/20673192 http://dx.doi.org/10.1673/031.010.7401 Text en © 2010 http://creativecommons.org/licenses/by/2.5/ This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
spellingShingle Article
Roeser-Mueller, Kerstin
Strohm, Erhard
Kaltenpoth, Martin
Larval Rearing Temperature Influences Amount and Composition of the Marking Pheromone of the Male Beewolf, Philanthus triangulum
title Larval Rearing Temperature Influences Amount and Composition of the Marking Pheromone of the Male Beewolf, Philanthus triangulum
title_full Larval Rearing Temperature Influences Amount and Composition of the Marking Pheromone of the Male Beewolf, Philanthus triangulum
title_fullStr Larval Rearing Temperature Influences Amount and Composition of the Marking Pheromone of the Male Beewolf, Philanthus triangulum
title_full_unstemmed Larval Rearing Temperature Influences Amount and Composition of the Marking Pheromone of the Male Beewolf, Philanthus triangulum
title_short Larval Rearing Temperature Influences Amount and Composition of the Marking Pheromone of the Male Beewolf, Philanthus triangulum
title_sort larval rearing temperature influences amount and composition of the marking pheromone of the male beewolf, philanthus triangulum
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3383414/
https://www.ncbi.nlm.nih.gov/pubmed/20673192
http://dx.doi.org/10.1673/031.010.7401
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