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Article: Inter- and intraspecific variation in the life histories of three sympatric isopods in a Hong Kong forest

TitleInter- and intraspecific variation in the life histories of three sympatric isopods in a Hong Kong forest
Authors
Issue Date1991
Citation
Journal Of Zoology, 1991, v. 224 n. 4, p. 677-687 How to Cite?
AbstractBurmoniscus ocellatus (Philosciidae), Formosillo raffaelei and Orodillo maculatus (Armadillidae) were all iteroparous. Burmoniscus ocellatus had more frequent breeding bouts, and smaller broods than O. maculatus and F. raffaelei. Although the three isopods had different life spans, brood numbers and life-time fecundities, their rates of offspring production (number of eggs per month) were similar. The Hong Kong isopods had longer breeding periods, a greater number of broods per life time, and lower reproductive allocation per brood than their temperate counterparts. Intraspecific, between-site differences in fecundity and brood dry weight of F. raffaelei could probably be explained by the variations in the size of gravid females. Burmoniscus ocellatus produced heavier eggs at the site with a higher population density, suggesting that conditions at the site with a higher isopod density may be more K-selecting. Female-biased sex ratios, possibly resulting from differential sex-specific mortality, were common among the isopod samples. -from Authors
Persistent Identifierhttp://hdl.handle.net/10722/178520
ISSN
2015 Impact Factor: 1.819
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DC FieldValueLanguage
dc.contributor.authorMa, HHTen_US
dc.contributor.authorLam, PKSen_US
dc.contributor.authorDudgeon, Den_US
dc.date.accessioned2012-12-19T09:48:11Z-
dc.date.available2012-12-19T09:48:11Z-
dc.date.issued1991en_US
dc.identifier.citationJournal Of Zoology, 1991, v. 224 n. 4, p. 677-687en_US
dc.identifier.issn0952-8369en_US
dc.identifier.urihttp://hdl.handle.net/10722/178520-
dc.description.abstractBurmoniscus ocellatus (Philosciidae), Formosillo raffaelei and Orodillo maculatus (Armadillidae) were all iteroparous. Burmoniscus ocellatus had more frequent breeding bouts, and smaller broods than O. maculatus and F. raffaelei. Although the three isopods had different life spans, brood numbers and life-time fecundities, their rates of offspring production (number of eggs per month) were similar. The Hong Kong isopods had longer breeding periods, a greater number of broods per life time, and lower reproductive allocation per brood than their temperate counterparts. Intraspecific, between-site differences in fecundity and brood dry weight of F. raffaelei could probably be explained by the variations in the size of gravid females. Burmoniscus ocellatus produced heavier eggs at the site with a higher population density, suggesting that conditions at the site with a higher isopod density may be more K-selecting. Female-biased sex ratios, possibly resulting from differential sex-specific mortality, were common among the isopod samples. -from Authorsen_US
dc.languageengen_US
dc.relation.ispartofJournal of Zoologyen_US
dc.titleInter- and intraspecific variation in the life histories of three sympatric isopods in a Hong Kong foresten_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-s2.0-0026309968en_US
dc.identifier.volume224en_US
dc.identifier.issue4en_US
dc.identifier.spage677en_US
dc.identifier.epage687en_US
dc.publisher.placeUnited Kingdomen_US
dc.identifier.scopusauthoridMa, HHT=7403096620en_US
dc.identifier.scopusauthoridLam, PKS=7202366007en_US
dc.identifier.scopusauthoridDudgeon, D=7006559840en_US

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