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Article: Reproductive biology of the Ilex species (Aquifoliaceae) in Hong Kong, China

TitleReproductive biology of the Ilex species (Aquifoliaceae) in Hong Kong, China
Authors
KeywordsGermination
Pollination
Reproductive investment
Seed dispersal
Sex ratio
Issue Date2005
PublisherN R C Research Press. The Journal's web site is located at http://pubs.nrc-cnrc.gc.ca/cgi-bin/rp/rp2_desc_e?cjb
Citation
Canadian Journal of Botany, 2005, v. 83 n. 12, p. 1645-1654 How to Cite?
AbstractFourteen wild species of shrubs and trees in the dioecious genus Ilex occur in Hong Kong (22°N, 114°E). All species flowered and formed fruits once each year. Sex ratios at flowering were male biased in all but one large population studied and, in most cases, this bias could not be explained by earlier flowering in males or higher female mortality. Apis cerana accounted for >87% of flower visits in all species and there was a significant positive relationship across species between the number of visits per flower per hour and the estimated mean number of flowers on a plant. The large green fruits of Ilex chapaensis Merr. were consumed only by masked palm civets, Paguma larvata, while the red or black fruits of other species were consumed by birds. The rate of fruit removal across species was positively related to sugar content and negatively related to phenolic and saponin contents. The mean number of pyrenes per fruit was 4.0-6.2 and the mean percentage of pyrenes containing seeds was 49%-90%. Most embryos were immature (heart shaped) at fruit maturity, but <50% of embryos developed further in some species. Floral investment was 0.93-5.84 times higher in male plants, but total reproductive investment was 0.62-8.3 higher in females.
Persistent Identifierhttp://hdl.handle.net/10722/53344
ISSN
2009 Impact Factor: 1.397
ISI Accession Number ID

 

DC FieldValueLanguage
dc.contributor.authorTsang, ACWen_HK
dc.contributor.authorCorlett, RTen_HK
dc.date.accessioned2009-04-03T07:17:19Z-
dc.date.available2009-04-03T07:17:19Z-
dc.date.issued2005en_HK
dc.identifier.citationCanadian Journal of Botany, 2005, v. 83 n. 12, p. 1645-1654en_HK
dc.identifier.issn0008-4026en_HK
dc.identifier.urihttp://hdl.handle.net/10722/53344-
dc.description.abstractFourteen wild species of shrubs and trees in the dioecious genus Ilex occur in Hong Kong (22°N, 114°E). All species flowered and formed fruits once each year. Sex ratios at flowering were male biased in all but one large population studied and, in most cases, this bias could not be explained by earlier flowering in males or higher female mortality. Apis cerana accounted for >87% of flower visits in all species and there was a significant positive relationship across species between the number of visits per flower per hour and the estimated mean number of flowers on a plant. The large green fruits of Ilex chapaensis Merr. were consumed only by masked palm civets, Paguma larvata, while the red or black fruits of other species were consumed by birds. The rate of fruit removal across species was positively related to sugar content and negatively related to phenolic and saponin contents. The mean number of pyrenes per fruit was 4.0-6.2 and the mean percentage of pyrenes containing seeds was 49%-90%. Most embryos were immature (heart shaped) at fruit maturity, but <50% of embryos developed further in some species. Floral investment was 0.93-5.84 times higher in male plants, but total reproductive investment was 0.62-8.3 higher in females.en_HK
dc.languageengen_HK
dc.publisherN R C Research Press. The Journal's web site is located at http://pubs.nrc-cnrc.gc.ca/cgi-bin/rp/rp2_desc_e?cjben_HK
dc.rightsCreative Commons: Attribution 3.0 Hong Kong License-
dc.rightsCanadian Journal of Botany. Copyright © N R C Research Press.en_HK
dc.subjectGerminationen_HK
dc.subjectPollinationen_HK
dc.subjectReproductive investmenten_HK
dc.subjectSeed dispersalen_HK
dc.subjectSex ratioen_HK
dc.titleReproductive biology of the Ilex species (Aquifoliaceae) in Hong Kong, Chinaen_HK
dc.typeArticleen_HK
dc.identifier.openurlhttp://library.hku.hk:4550/resserv?sid=HKU:IR&issn=0008-4026&volume=83&issue=12&spage=1645&epage=1654&date=2005&atitle=Reproductive+biology+of+the+Ilex+species+(Aquifoliaceae)+in+Hong+Kong,+Chinaen_HK
dc.identifier.emailCorlett, RT: corlett@hkucc.hku.hken_HK
dc.description.naturepublished_or_final_versionen_HK
dc.identifier.doi10.1139/b05-131-
dc.identifier.scopuseid_2-s2.0-33744477629-
dc.identifier.isiWOS:000237306700013-

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