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Individual variation and repeatability of sex pheromone emission of female turnip moths Agrotis segetum

Svensson, Mats G.E.; Bengtsson, Marie and Löfqvist, Jan (1997) In Journal of Chemical Ecology 23(7). p.1833-1850
Abstract
Individual variation of the female sex pheromone signal in Agrotis segetum was determined by gas chromatographic analysis. The individuals varied extensively, both in absolute and relative amounts of the three major pheromone components; Z5-10:OAc, Z7-12:OAc and Z9-14:OAc. Within individuals there was a strong correspondence between the sex pheromone gland content and the signal actually emitted. Both pheromone amounts and proportions of components were correlated with effluvia and extracts; with coefficients of 0.55 for total amounts and 0.66 for proportions. In addition, the repeatability of emitted pheromone components by individual females over three calling periods was high, with correlation coefficients between 0.43 and 0.72.... (More)
Individual variation of the female sex pheromone signal in Agrotis segetum was determined by gas chromatographic analysis. The individuals varied extensively, both in absolute and relative amounts of the three major pheromone components; Z5-10:OAc, Z7-12:OAc and Z9-14:OAc. Within individuals there was a strong correspondence between the sex pheromone gland content and the signal actually emitted. Both pheromone amounts and proportions of components were correlated with effluvia and extracts; with coefficients of 0.55 for total amounts and 0.66 for proportions. In addition, the repeatability of emitted pheromone components by individual females over three calling periods was high, with correlation coefficients between 0.43 and 0.72. Variation among individual females, however, was observed. There were no significant differences between wild-collected and laboratory-reared females in average ratios of the major pheromone components in pheromone gland extracts, only in total amounts. The biological significance of the interindividual variation among females is discussed in the context of population dynamics and sexual selection. (Less)
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author
publishing date
type
Contribution to journal
publication status
published
subject
keywords
effluvia entrainment, repeatability, individual variation, Agrotis segetum, Lepidoptera, (Z)-5-decenyl acetate, (Z)-7 dodecenyl acetate, sex pheromone, (Z)-9-tetradecenyl acetate
in
Journal of Chemical Ecology
volume
23
issue
7
pages
1833 - 1850
publisher
Springer
external identifiers
  • scopus:0030835520
ISSN
1573-1561
DOI
10.1023/B:JOEC.0000006454.84415.5f
language
English
LU publication?
no
id
c57faf5c-32ad-43ef-9444-4c12f301c737 (old id 31697)
date added to LUP
2007-06-15 15:52:38
date last changed
2017-10-29 04:11:38
@article{c57faf5c-32ad-43ef-9444-4c12f301c737,
  abstract     = {Individual variation of the female sex pheromone signal in Agrotis segetum was determined by gas chromatographic analysis. The individuals varied extensively, both in absolute and relative amounts of the three major pheromone components; Z5-10:OAc, Z7-12:OAc and Z9-14:OAc. Within individuals there was a strong correspondence between the sex pheromone gland content and the signal actually emitted. Both pheromone amounts and proportions of components were correlated with effluvia and extracts; with coefficients of 0.55 for total amounts and 0.66 for proportions. In addition, the repeatability of emitted pheromone components by individual females over three calling periods was high, with correlation coefficients between 0.43 and 0.72. Variation among individual females, however, was observed. There were no significant differences between wild-collected and laboratory-reared females in average ratios of the major pheromone components in pheromone gland extracts, only in total amounts. The biological significance of the interindividual variation among females is discussed in the context of population dynamics and sexual selection.},
  author       = {Svensson, Mats G.E. and Bengtsson, Marie and Löfqvist, Jan},
  issn         = {1573-1561},
  keyword      = {effluvia entrainment,repeatability,individual variation,Agrotis segetum,Lepidoptera,(Z)-5-decenyl acetate,(Z)-7 dodecenyl acetate,sex pheromone,(Z)-9-tetradecenyl acetate},
  language     = {eng},
  number       = {7},
  pages        = {1833--1850},
  publisher    = {Springer},
  series       = {Journal of Chemical Ecology},
  title        = {Individual variation and repeatability of sex pheromone emission of female turnip moths Agrotis segetum},
  url          = {http://dx.doi.org/10.1023/B:JOEC.0000006454.84415.5f},
  volume       = {23},
  year         = {1997},
}