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Reemergence and second brood in the bark beetle Ips typographus

Anderbrant, Olle LU (1989) In Ecography 12(4). p.494-500
Abstract

The knowledge about reemergence of parent spruce bark beetles Ips typographus. their dispersal, and production of a second brood is reviewed. A majority of the beetles reemerge after their first brood. The process is mainly determined by temperature but high breeding density decreases the average time spent in the tree. The difference between males and females in reemergence seems to be small. In the field, a positive relationship between residence time and fat content at reemergence seems to exist, whereas the opposite tendency is found under laboratory conditions. In the laboratory, the survival of beetles reemerging late is on the average lower than that for early reemerging beetles. The time of reemergence and size of the first... (More)

The knowledge about reemergence of parent spruce bark beetles Ips typographus. their dispersal, and production of a second brood is reviewed. A majority of the beetles reemerge after their first brood. The process is mainly determined by temperature but high breeding density decreases the average time spent in the tree. The difference between males and females in reemergence seems to be small. In the field, a positive relationship between residence time and fat content at reemergence seems to exist, whereas the opposite tendency is found under laboratory conditions. In the laboratory, the survival of beetles reemerging late is on the average lower than that for early reemerging beetles. The time of reemergence and size of the first brood do not, however, seem to influence the production of a second brood. A large proportion of the reemerging beetles are able to establish a new brood in the laboratory, but calculations based on the number of attacked trees and estimated reemergence in forests in South Norway suggest that only about one third of the beetles actually produce a second brood. In northern Europe, successful colonization of new trees by the reemerging beetles seems to require a period of several warm days during the main reemergence period.

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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Ecography
volume
12
issue
4
pages
7 pages
publisher
Wiley-Blackwell
external identifiers
  • scopus:0024935869
ISSN
0906-7590
DOI
10.1111/j.1600-0587.1989.tb00927.x
project
Olfaction in bark beetles
language
English
LU publication?
yes
id
7a7d5236-6ed5-4889-bb5f-3f708f5c07a3
date added to LUP
2019-07-29 11:25:26
date last changed
2024-04-16 18:04:45
@article{7a7d5236-6ed5-4889-bb5f-3f708f5c07a3,
  abstract     = {{<p>The knowledge about reemergence of parent spruce bark beetles Ips typographus. their dispersal, and production of a second brood is reviewed. A majority of the beetles reemerge after their first brood. The process is mainly determined by temperature but high breeding density decreases the average time spent in the tree. The difference between males and females in reemergence seems to be small. In the field, a positive relationship between residence time and fat content at reemergence seems to exist, whereas the opposite tendency is found under laboratory conditions. In the laboratory, the survival of beetles reemerging late is on the average lower than that for early reemerging beetles. The time of reemergence and size of the first brood do not, however, seem to influence the production of a second brood. A large proportion of the reemerging beetles are able to establish a new brood in the laboratory, but calculations based on the number of attacked trees and estimated reemergence in forests in South Norway suggest that only about one third of the beetles actually produce a second brood. In northern Europe, successful colonization of new trees by the reemerging beetles seems to require a period of several warm days during the main reemergence period.</p>}},
  author       = {{Anderbrant, Olle}},
  issn         = {{0906-7590}},
  language     = {{eng}},
  month        = {{01}},
  number       = {{4}},
  pages        = {{494--500}},
  publisher    = {{Wiley-Blackwell}},
  series       = {{Ecography}},
  title        = {{Reemergence and second brood in the bark beetle Ips typographus}},
  url          = {{http://dx.doi.org/10.1111/j.1600-0587.1989.tb00927.x}},
  doi          = {{10.1111/j.1600-0587.1989.tb00927.x}},
  volume       = {{12}},
  year         = {{1989}},
}