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Article: Longitudinal and temporal changes in functional organization of macroinvertebrate communities in the Lam Tsuen River, Hong Kong

TitleLongitudinal and temporal changes in functional organization of macroinvertebrate communities in the Lam Tsuen River, Hong Kong
Authors
KeywordsBenthic Macroinvertebrates
Cultural Eutrophication
Functional Groups
Hong Kong
River Continuum Hypothesis
Issue Date1984
PublisherSpringer Verlag Dordrecht. The Journal's web site is located at http://springerlink.metapress.com/openurl.asp?genre=journal&issn=0018-8158
Citation
Hydrobiologia, 1984, v. 111 n. 3, p. 207-217 How to Cite?
AbstractThe functional organization of macroinvertebrate communities along the Lam Tsuen River, New Territories, Hong Kong, was investigated in 1976 and 1978-79. Longitudinal changes in functional group representation in 1976 generally matched those predicted by the River Continuum hypothesis, although shredders were poorly represented in the headwaters. This could be attributed to a lack of shading and limited allochthonous inputs from the scrubland watershed. In 1978-79 community organization was modified by nutrients and organic matter inputs from domestic and agricultural sources. An increase in generalists and the establishment of deposit-feeder populations in the middle and lower course was accompanied by relative declines in collector, filter-feeder and predator diversity. Shredders and scrapers were also adversely affected. Seasonal influences were mediated through the effects of rainfall on river discharge. The river was 'flushed-out' during the wet season and community organization tended toward that seen in 1976. Effects of cultural eutrophication were pronounced during the dry season and marked alterations in middle and lower course functional group representation were noted. Apparently, differing environmental tolerances of individual taxa cause marked changes in functional group representation and community structure in rivers affected by cultural eutrophication. © 1984 Dr W. Junk Publishers.
Persistent Identifierhttp://hdl.handle.net/10722/178427
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.accessioned2012-12-19T09:47:38Z-
dc.date.available2012-12-19T09:47:38Z-
dc.date.issued1984en_US
dc.identifier.citationHydrobiologia, 1984, v. 111 n. 3, p. 207-217en_US
dc.identifier.issn0018-8158en_US
dc.identifier.urihttp://hdl.handle.net/10722/178427-
dc.description.abstractThe functional organization of macroinvertebrate communities along the Lam Tsuen River, New Territories, Hong Kong, was investigated in 1976 and 1978-79. Longitudinal changes in functional group representation in 1976 generally matched those predicted by the River Continuum hypothesis, although shredders were poorly represented in the headwaters. This could be attributed to a lack of shading and limited allochthonous inputs from the scrubland watershed. In 1978-79 community organization was modified by nutrients and organic matter inputs from domestic and agricultural sources. An increase in generalists and the establishment of deposit-feeder populations in the middle and lower course was accompanied by relative declines in collector, filter-feeder and predator diversity. Shredders and scrapers were also adversely affected. Seasonal influences were mediated through the effects of rainfall on river discharge. The river was 'flushed-out' during the wet season and community organization tended toward that seen in 1976. Effects of cultural eutrophication were pronounced during the dry season and marked alterations in middle and lower course functional group representation were noted. Apparently, differing environmental tolerances of individual taxa cause marked changes in functional group representation and community structure in rivers affected by cultural eutrophication. © 1984 Dr W. Junk 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.subjectBenthic Macroinvertebratesen_US
dc.subjectCultural Eutrophicationen_US
dc.subjectFunctional Groupsen_US
dc.subjectHong Kongen_US
dc.subjectRiver Continuum Hypothesisen_US
dc.titleLongitudinal and temporal changes in functional organization of macroinvertebrate communities in the Lam Tsuen River, Hong Kongen_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/BF00007201en_US
dc.identifier.scopuseid_2-s2.0-0021549059en_US
dc.identifier.volume111en_US
dc.identifier.issue3en_US
dc.identifier.spage207en_US
dc.identifier.epage217en_US
dc.identifier.isiWOS:A1984SR94400007-
dc.publisher.placeNetherlandsen_US
dc.identifier.scopusauthoridDudgeon, D=7006559840en_US

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