File Download

There are no files associated with this item.

  Links for fulltext
     (May Require Subscription)
Supplementary

Article: Feeding by the aquatic heteropteran, Diplonychus rusticum (Belostomatidae): an effect of prey density on meal size

TitleFeeding by the aquatic heteropteran, Diplonychus rusticum (Belostomatidae): an effect of prey density on meal size
Authors
KeywordsDiplonychus
Feeding
Heteroptera
Partial Consumption
Prey Density
Issue Date1990
PublisherSpringer Verlag Dordrecht. The Journal's web site is located at http://springerlink.metapress.com/openurl.asp?genre=journal&issn=0018-8158
Citation
Hydrobiologia, 1990, v. 190 n. 1, p. 93-96 How to Cite?
AbstractThe behaviour of Diplonychus rusticum feeding on chironomid larvae has been investigated under laboratory conditions. Changes in the percentage of material extracted from prey indicated that feeding for the first two minutes enabled the predator to obtain approximately 33% of the available food; feeding for 10 minutes resulted in only 60% extraction. Comparing the percentage of each prey consumed by D. rusticum exposed to various prey densities, it was apparent that predators were more 'wasteful' and ate less of each prey as chironomid density increased. Because the rate of food intake declined as a greater proportion of each prey was extracted, predators exposed to high chironomid densities reduced the amount of each prey consumed thereby conforming to a simple optimal feeding model. © 1990 Kluwer Academic Publishers.
Persistent Identifierhttp://hdl.handle.net/10722/179002
ISSN
2015 Impact Factor: 2.051
2015 SCImago Journal Rankings: 1.043
ISI Accession Number ID

 

DC FieldValueLanguage
dc.contributor.authorDudgeon, Den_US
dc.date.accessioned2012-12-19T09:51:21Z-
dc.date.available2012-12-19T09:51:21Z-
dc.date.issued1990en_US
dc.identifier.citationHydrobiologia, 1990, v. 190 n. 1, p. 93-96en_US
dc.identifier.issn0018-8158en_US
dc.identifier.urihttp://hdl.handle.net/10722/179002-
dc.description.abstractThe behaviour of Diplonychus rusticum feeding on chironomid larvae has been investigated under laboratory conditions. Changes in the percentage of material extracted from prey indicated that feeding for the first two minutes enabled the predator to obtain approximately 33% of the available food; feeding for 10 minutes resulted in only 60% extraction. Comparing the percentage of each prey consumed by D. rusticum exposed to various prey densities, it was apparent that predators were more 'wasteful' and ate less of each prey as chironomid density increased. Because the rate of food intake declined as a greater proportion of each prey was extracted, predators exposed to high chironomid densities reduced the amount of each prey consumed thereby conforming to a simple optimal feeding model. © 1990 Kluwer Academic Publishers.en_US
dc.languageengen_US
dc.publisherSpringer Verlag Dordrecht. The Journal's web site is located at http://springerlink.metapress.com/openurl.asp?genre=journal&issn=0018-8158en_US
dc.relation.ispartofHydrobiologiaen_US
dc.subjectDiplonychusen_US
dc.subjectFeedingen_US
dc.subjectHeteropteraen_US
dc.subjectPartial Consumptionen_US
dc.subjectPrey Densityen_US
dc.titleFeeding by the aquatic heteropteran, Diplonychus rusticum (Belostomatidae): an effect of prey density on meal sizeen_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.doi10.1007/BF00020691en_US
dc.identifier.scopuseid_2-s2.0-34249954088en_US
dc.identifier.volume190en_US
dc.identifier.issue1en_US
dc.identifier.spage93en_US
dc.identifier.epage96en_US
dc.identifier.isiWOS:A1990CQ83100010-
dc.publisher.placeNetherlandsen_US
dc.identifier.scopusauthoridDudgeon, D=7006559840en_US

Export via OAI-PMH Interface in XML Formats


OR


Export to Other Non-XML Formats