Document Detail


Feeding and oviposition rates in the pine weevil Hylobius abietis (Coleoptera: Curculionidae).
MedLine Citation:
PMID:  15301696     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
Feeding and oviposition in the pine weevil Hylobius abietis (Linnaeus) were monitored under laboratory conditions in two long-term experiments lasting over an extended breeding season. Data were also collected from weevils under semi-natural conditions outdoors. In addition, the effects of crowding and starvation were studied in separate experiments. During the main peak oviposition period, female H. abietis consumed 50% more bark tissue than males. When oviposition ceased, the feeding rate of the females declined to the same level as in the males. The rates and spatial distribution patterns of oviposition and feeding were clearly affected by climatic conditions and the degree of crowding. Females were estimated to lay on average 0.8 eggs per day during the season under outdoor conditions. The realized fecundity of a female weevil during the first season was estimated to be approximately 70 eggs. The estimated average rate of feeding was 23 mm2 of Scots pine bark per weevil per day. This implies that planted seedlings can only constitute a minor part of the food resources needed to sustain H. abietispopulations of the size that usually appear on fresh clear-cuttings in northern Europe.
Authors:
H Bylund; G Nordlander; H Nordenhem
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Bulletin of entomological research     Volume:  94     ISSN:  0007-4853     ISO Abbreviation:  Bull. Entomol. Res.     Publication Date:  2004 Aug 
Date Detail:
Created Date:  2004-08-10     Completed Date:  2004-09-30     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  2984715R     Medline TA:  Bull Entomol Res     Country:  England    
Other Details:
Languages:  eng     Pagination:  307-17     Citation Subset:  IM    
Affiliation:
Department of Entomology, Swedish University of Agricultural Sciences, PO Box 7044, SE-750 07 Uppsala, Sweden. Helena.Bylund@entom.slu.se
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MeSH Terms
Descriptor/Qualifier:
Animal Feed
Animals
Beetles / growth & development,  metabolism,  physiology*
Breeding
Eating*
Female
Male
Oviposition / physiology*
Population Density
Seasons
Starvation

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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