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Article: Variations in the life-history parameters of Hemipyrellia ligurriens (Diptera: Calliphoridae) in response to larval competition for food

TitleVariations in the life-history parameters of Hemipyrellia ligurriens (Diptera: Calliphoridae) in response to larval competition for food
Authors
Issue Date1989
PublisherBlackwell Publishing Ltd. The Journal's web site is located at http://www.blackwellpublishing.com/journals/EEN
Citation
Ecological Entomology, 1989, v. 14 n. 1, p. 109-116 How to Cite?
AbstractLarval competition for food was of the typical scramble type. Survivorship remained high at densities up to 31 larvae g liver -1, but decreased rapidly as larval density increased further. Emergent adults were undersized with reduced fecundity and longevity. Variations in adult body size reduced the effects of competition on larval mortality. Females of dry weight corresponding to only 10.4% of the potential maximum emerged at the highest rearing densities of 128 larvae g liver-1, but these females had a nearly 4-fold increase in reproductive investment (per unit weight) compared to the largest individuals. Duration of larval development declined when competition was intense (ie at high larval densities). The short adult life of H. ligurriens, combined with the unpredictability of larval habitat availability, may reduce the value of long-range dispersal so that females "do better' by maintaining reproductive investment despite a concomitant decline in dispersal ability. -from Authors
Persistent Identifierhttp://hdl.handle.net/10722/178470
ISSN
2015 Impact Factor: 1.687
2015 SCImago Journal Rankings: 1.038

 

DC FieldValueLanguage
dc.contributor.authorPingMan Soen_US
dc.contributor.authorDudgeon, Den_US
dc.date.accessioned2012-12-19T09:47:52Z-
dc.date.available2012-12-19T09:47:52Z-
dc.date.issued1989en_US
dc.identifier.citationEcological Entomology, 1989, v. 14 n. 1, p. 109-116en_US
dc.identifier.issn0307-6946en_US
dc.identifier.urihttp://hdl.handle.net/10722/178470-
dc.description.abstractLarval competition for food was of the typical scramble type. Survivorship remained high at densities up to 31 larvae g liver -1, but decreased rapidly as larval density increased further. Emergent adults were undersized with reduced fecundity and longevity. Variations in adult body size reduced the effects of competition on larval mortality. Females of dry weight corresponding to only 10.4% of the potential maximum emerged at the highest rearing densities of 128 larvae g liver-1, but these females had a nearly 4-fold increase in reproductive investment (per unit weight) compared to the largest individuals. Duration of larval development declined when competition was intense (ie at high larval densities). The short adult life of H. ligurriens, combined with the unpredictability of larval habitat availability, may reduce the value of long-range dispersal so that females "do better' by maintaining reproductive investment despite a concomitant decline in dispersal ability. -from Authorsen_US
dc.languageengen_US
dc.publisherBlackwell Publishing Ltd. The Journal's web site is located at http://www.blackwellpublishing.com/journals/EENen_US
dc.relation.ispartofEcological Entomologyen_US
dc.titleVariations in the life-history parameters of Hemipyrellia ligurriens (Diptera: Calliphoridae) in response to larval competition for fooden_US
dc.typeArticleen_US
dc.identifier.emailDudgeon, D: ddudgeon@hku.hken_US
dc.identifier.authorityDudgeon, D=rp00691en_US
dc.description.naturelink_to_subscribed_fulltexten_US
dc.identifier.scopuseid_2-s2.0-0024530379en_US
dc.identifier.volume14en_US
dc.identifier.issue1en_US
dc.identifier.spage109en_US
dc.identifier.epage116en_US
dc.publisher.placeUnited Kingdomen_US
dc.identifier.scopusauthoridPingMan So=7409532919en_US
dc.identifier.scopusauthoridDudgeon, D=7006559840en_US

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