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Article: Indiscriminate feeding by a predatory stonefly (Plecoptera: Perlidae) in a tropical Asian stream

TitleIndiscriminate feeding by a predatory stonefly (Plecoptera: Perlidae) in a tropical Asian stream
Authors
KeywordsCommunity structure
Diet
Gut contents
Prey selection
Issue Date2000
PublisherTaylor & Francis Ltd. The Journal's web site is located at http://www.tandf.co.uk/journals/titles/01650424.asp
Citation
Aquatic Insects, 2000, v. 22 n. 1, p. 39-47 How to Cite?
AbstractThe diet of an undescribed species of Kamimuria was investigated in Tai Po Kau Forest Stream, Hong Kong, by comparing larval gut contents with the array of available prey living on and among cobble substrates. Diets were dominated by chironomids and philopotamid caddisflies, with Baetidae, Heptageniidae, Hydropsychidae and Simuliidae comprising secondary dietary items. These six taxa made up 94% of the prey individuals eaten by Kamimuria. Data analysis using a selectivity index revealed that these stoneflies fed indiscriminately, eating individual prey taxa in proportion to their availability in the environment. Large and small Kamimuria exploited essentially the same prey. A comparison of the diet of Kamimuria with the diets of four sympatric Odonata indicated that the degree of interspecific similarity was determined by the extent of overlap in microhabitat use. Diets of Euphaea decorata (Zygoptera) larvae, which live under cobbles, were most similar to Kamimuria. This is the first albeit limited - study of the gut contents of a tropical Asian stonefly. The results suggest that these predators have the potential to limit benthic invertebrate abundance but, because Kamimuria larvae feed unselectively, community structure may not be affected by their activities.
Persistent Identifierhttp://hdl.handle.net/10722/73466
ISSN
2015 Impact Factor: 0.129
2015 SCImago Journal Rankings: 0.205
References

 

DC FieldValueLanguage
dc.contributor.authorDudgeon, Den_HK
dc.date.accessioned2010-09-06T06:51:31Z-
dc.date.available2010-09-06T06:51:31Z-
dc.date.issued2000en_HK
dc.identifier.citationAquatic Insects, 2000, v. 22 n. 1, p. 39-47en_HK
dc.identifier.issn0165-0424en_HK
dc.identifier.urihttp://hdl.handle.net/10722/73466-
dc.description.abstractThe diet of an undescribed species of Kamimuria was investigated in Tai Po Kau Forest Stream, Hong Kong, by comparing larval gut contents with the array of available prey living on and among cobble substrates. Diets were dominated by chironomids and philopotamid caddisflies, with Baetidae, Heptageniidae, Hydropsychidae and Simuliidae comprising secondary dietary items. These six taxa made up 94% of the prey individuals eaten by Kamimuria. Data analysis using a selectivity index revealed that these stoneflies fed indiscriminately, eating individual prey taxa in proportion to their availability in the environment. Large and small Kamimuria exploited essentially the same prey. A comparison of the diet of Kamimuria with the diets of four sympatric Odonata indicated that the degree of interspecific similarity was determined by the extent of overlap in microhabitat use. Diets of Euphaea decorata (Zygoptera) larvae, which live under cobbles, were most similar to Kamimuria. This is the first albeit limited - study of the gut contents of a tropical Asian stonefly. The results suggest that these predators have the potential to limit benthic invertebrate abundance but, because Kamimuria larvae feed unselectively, community structure may not be affected by their activities.en_HK
dc.languageengen_HK
dc.publisherTaylor & Francis Ltd. The Journal's web site is located at http://www.tandf.co.uk/journals/titles/01650424.aspen_HK
dc.relation.ispartofAquatic Insectsen_HK
dc.subjectCommunity structureen_HK
dc.subjectDieten_HK
dc.subjectGut contentsen_HK
dc.subjectPrey selectionen_HK
dc.titleIndiscriminate feeding by a predatory stonefly (Plecoptera: Perlidae) in a tropical Asian streamen_HK
dc.typeArticleen_HK
dc.identifier.openurlhttp://library.hku.hk:4550/resserv?sid=HKU:IR&issn=0165-0424&volume=22&issue=1&spage=39&epage=47&date=2000&atitle=Indiscriminate+feeding+by+a+predatory+stonefly+(Plecoptera:+Perlidae)+in+a+tropical+Asian+streamen_HK
dc.identifier.emailDudgeon, D: ddudgeon@hku.hken_HK
dc.identifier.authorityDudgeon, D=rp00691en_HK
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.scopuseid_2-s2.0-0034058674en_HK
dc.identifier.hkuros55949en_HK
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-0034058674&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume22en_HK
dc.identifier.issue1en_HK
dc.identifier.spage39en_HK
dc.identifier.epage47en_HK
dc.publisher.placeUnited Kingdomen_HK
dc.identifier.scopusauthoridDudgeon, D=7006559840en_HK

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