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Intraspecific competition affecting parents and offspring in the bark beetle Ips typographus.

Anderbrant, O. LU ; Schlyter, Fredrik and Birgersson, Göran (1985) In Oikos 45(1). p.89-98
Abstract

Parents re-emerged sooner at higher densities but the total proportion that re-emerged was independent of density. Over 20 offspring per female were produced at the lowest density (0.5/100 cm2) but only 0.6 per female at the highest density (31/100 cm2). Offspring from the lowest density were about 50% heavier than those from the highest density and also the fat content increased with decreasing density. Females weighed less and contained less fat than males. Male offspring from lower densities produced larger amounts of the pheromone components cis-verbenol and 2-methyl-3-buten-2-ol than males from the higher densities. Offspring from the highest density produced about half as many progeny as those from the lowest... (More)

Parents re-emerged sooner at higher densities but the total proportion that re-emerged was independent of density. Over 20 offspring per female were produced at the lowest density (0.5/100 cm2) but only 0.6 per female at the highest density (31/100 cm2). Offspring from the lowest density were about 50% heavier than those from the highest density and also the fat content increased with decreasing density. Females weighed less and contained less fat than males. Male offspring from lower densities produced larger amounts of the pheromone components cis-verbenol and 2-methyl-3-buten-2-ol than males from the higher densities. Offspring from the highest density produced about half as many progeny as those from the lowest densities, showing an effect of density acting over more than one generation. Density-induced variation of beetle 'quality' might be of importance in the population dynamics of bark beetles.-from Authors

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Please use this url to cite or link to this publication:
author
; and
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Oikos
volume
45
issue
1
pages
10 pages
publisher
Wiley-Blackwell
external identifiers
  • scopus:0022185822
ISSN
0030-1299
DOI
10.2307/3565226
project
Olfaction in bark beetles
language
English
LU publication?
yes
id
33e677a8-d857-48af-8b35-5d84ce71d402
date added to LUP
2020-05-26 14:09:38
date last changed
2021-09-19 03:12:10
@article{33e677a8-d857-48af-8b35-5d84ce71d402,
  abstract     = {{<p>Parents re-emerged sooner at higher densities but the total proportion that re-emerged was independent of density. Over 20 offspring per female were produced at the lowest density (0.5/100 cm<sup>2</sup>) but only 0.6 per female at the highest density (31/100 cm<sup>2</sup>). Offspring from the lowest density were about 50% heavier than those from the highest density and also the fat content increased with decreasing density. Females weighed less and contained less fat than males. Male offspring from lower densities produced larger amounts of the pheromone components cis-verbenol and 2-methyl-3-buten-2-ol than males from the higher densities. Offspring from the highest density produced about half as many progeny as those from the lowest densities, showing an effect of density acting over more than one generation. Density-induced variation of beetle 'quality' might be of importance in the population dynamics of bark beetles.-from Authors</p>}},
  author       = {{Anderbrant, O. and Schlyter, Fredrik and Birgersson, Göran}},
  issn         = {{0030-1299}},
  language     = {{eng}},
  month        = {{01}},
  number       = {{1}},
  pages        = {{89--98}},
  publisher    = {{Wiley-Blackwell}},
  series       = {{Oikos}},
  title        = {{Intraspecific competition affecting parents and offspring in the bark beetle Ips typographus.}},
  url          = {{http://dx.doi.org/10.2307/3565226}},
  doi          = {{10.2307/3565226}},
  volume       = {{45}},
  year         = {{1985}},
}