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Article: Life cycle, production, microdistribution and diet of the damselfly Euphaea decorata (Odonata: Euphaeidae) in a Hong Kong forest stream

TitleLife cycle, production, microdistribution and diet of the damselfly Euphaea decorata (Odonata: Euphaeidae) in a Hong Kong forest stream
Authors
Issue Date1989
Citation
Journal Of Zoology, 1989, v. 217 n. 1, p. 57-72 How to Cite?
AbstractEuphaea decorata in Tai Po Kau Forest Stream was univoltine. Most recruitment took place in summer. Larval growth proceeded throughout the year. Annual production estimates were more similar for the 1978-79 generation (158.7-174.7; mean 167.1mg dry wt m-2) than for the 1977-78 generation (93.9-173.6; mean 131.7mg dry wt m-2). Mean biomass was similar for both generations (33.59-33.9mg dry wt m-2), and mean P/B ratios were 3.9 (1977-78) and 5.0 (1978-79). Larvae were most abundant at microsites in the middle of the stream. E. decorata apparently favoured poorly-sorted sediments with highly peaked grain size-frequency distributions, containing few fine particles. Small individuals consumed mainly chironomid larvae; the diet expanded to include (successively) larvae of Ephemeroptera and Trichoptera as E. decorata grew. Seasonal changes in diet were also apparent. -from Author
Persistent Identifierhttp://hdl.handle.net/10722/178479
ISSN
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DC FieldValueLanguage
dc.contributor.authorDudgeon, Den_US
dc.date.accessioned2012-12-19T09:47:55Z-
dc.date.available2012-12-19T09:47:55Z-
dc.date.issued1989en_US
dc.identifier.citationJournal Of Zoology, 1989, v. 217 n. 1, p. 57-72en_US
dc.identifier.issn0952-8369en_US
dc.identifier.urihttp://hdl.handle.net/10722/178479-
dc.description.abstractEuphaea decorata in Tai Po Kau Forest Stream was univoltine. Most recruitment took place in summer. Larval growth proceeded throughout the year. Annual production estimates were more similar for the 1978-79 generation (158.7-174.7; mean 167.1mg dry wt m-2) than for the 1977-78 generation (93.9-173.6; mean 131.7mg dry wt m-2). Mean biomass was similar for both generations (33.59-33.9mg dry wt m-2), and mean P/B ratios were 3.9 (1977-78) and 5.0 (1978-79). Larvae were most abundant at microsites in the middle of the stream. E. decorata apparently favoured poorly-sorted sediments with highly peaked grain size-frequency distributions, containing few fine particles. Small individuals consumed mainly chironomid larvae; the diet expanded to include (successively) larvae of Ephemeroptera and Trichoptera as E. decorata grew. Seasonal changes in diet were also apparent. -from Authoren_US
dc.languageengen_US
dc.relation.ispartofJournal of Zoologyen_US
dc.titleLife cycle, production, microdistribution and diet of the damselfly Euphaea decorata (Odonata: Euphaeidae) in a Hong Kong forest streamen_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-s2.0-0024909552en_US
dc.identifier.volume217en_US
dc.identifier.issue1en_US
dc.identifier.spage57en_US
dc.identifier.epage72en_US
dc.publisher.placeUnited Kingdomen_US
dc.identifier.scopusauthoridDudgeon, D=7006559840en_US

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