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Article: Reproductive biology of two sympatric species of Polyalthia (annonaceae) in Sri Lanka. I. Pollination by curculionid beetles

TitleReproductive biology of two sympatric species of Polyalthia (annonaceae) in Sri Lanka. I. Pollination by curculionid beetles
Authors
KeywordsAnnonaceae
Coleoptera
Floral thermogenesis
Pollination
Polyalthia
Issue Date2006
PublisherUniversity of Chicago Press. The Journal's web site is located at http://www.journals.uchicago.edu/IJPS
Citation
International Journal Of Plant Sciences, 2006, v. 167 n. 3, p. 483-493 How to Cite?
AbstractThe pollination biology of two sympatric species, Polyalthia coffeoides and Polyalthia korinti (Annonaceae), is described in detail. An Endaeus species (Coleoptera: Curculionidae) is shown to be the major pollinator of both species, with Carpophilus plagiatipennis (Coleoptera: Nitidulidae) as the secondary pollinator of P. coffeoides. Both Polyalthia species show intrafloral dichogamy (protogyny) with a reproductively inactive phase between the pistillate and staminate phases, although there is no evidence of interfloral dichogamy. A pollination chamber is formed by the inner petals throughout the reproductively active phases. Thermogenesis occurs in P. korinti, with internal floral temperatures up to 6°C above ambient levels. The heat is presumably an energy reward for the beetles. Although most pollination systems are regarded as diversified and opportunistic, specialized pollination systems are typical of the Annonaceae. Although P. coffeoides and P. korinti have overlapping distributions, habitats, and flowering seasons and share the same pollinators, the extent of competition for pollinators is likely to be lessened due to the abundance and nonspecificity of the beetles. © 2006 by The University of Chicago. All rights reserved.
Persistent Identifierhttp://hdl.handle.net/10722/44702
ISSN
2015 Impact Factor: 1.536
2015 SCImago Journal Rankings: 0.823
ISI Accession Number ID
References

 

DC FieldValueLanguage
dc.contributor.authorRatnayake, RMCSen_HK
dc.contributor.authorGunatilleke, IAUNen_HK
dc.contributor.authorWijesundara, DSAen_HK
dc.contributor.authorSaunders, RMKen_HK
dc.date.accessioned2007-10-30T06:08:13Z-
dc.date.available2007-10-30T06:08:13Z-
dc.date.issued2006en_HK
dc.identifier.citationInternational Journal Of Plant Sciences, 2006, v. 167 n. 3, p. 483-493en_HK
dc.identifier.issn1058-5893en_HK
dc.identifier.urihttp://hdl.handle.net/10722/44702-
dc.description.abstractThe pollination biology of two sympatric species, Polyalthia coffeoides and Polyalthia korinti (Annonaceae), is described in detail. An Endaeus species (Coleoptera: Curculionidae) is shown to be the major pollinator of both species, with Carpophilus plagiatipennis (Coleoptera: Nitidulidae) as the secondary pollinator of P. coffeoides. Both Polyalthia species show intrafloral dichogamy (protogyny) with a reproductively inactive phase between the pistillate and staminate phases, although there is no evidence of interfloral dichogamy. A pollination chamber is formed by the inner petals throughout the reproductively active phases. Thermogenesis occurs in P. korinti, with internal floral temperatures up to 6°C above ambient levels. The heat is presumably an energy reward for the beetles. Although most pollination systems are regarded as diversified and opportunistic, specialized pollination systems are typical of the Annonaceae. Although P. coffeoides and P. korinti have overlapping distributions, habitats, and flowering seasons and share the same pollinators, the extent of competition for pollinators is likely to be lessened due to the abundance and nonspecificity of the beetles. © 2006 by The University of Chicago. All rights reserved.en_HK
dc.format.extent794651 bytes-
dc.format.extent473841 bytes-
dc.format.mimetypeapplication/pdf-
dc.format.mimetypeapplication/pdf-
dc.languageengen_HK
dc.publisherUniversity of Chicago Press. The Journal's web site is located at http://www.journals.uchicago.edu/IJPSen_HK
dc.relation.ispartofInternational Journal of Plant Sciencesen_HK
dc.rightsInternational Journal of Plant Sciences. Copyright © University of Chicago Press.en_HK
dc.rightsCreative Commons: Attribution 3.0 Hong Kong License-
dc.subjectAnnonaceaeen_HK
dc.subjectColeopteraen_HK
dc.subjectFloral thermogenesisen_HK
dc.subjectPollinationen_HK
dc.subjectPolyalthiaen_HK
dc.titleReproductive biology of two sympatric species of Polyalthia (annonaceae) in Sri Lanka. I. Pollination by curculionid beetlesen_HK
dc.typeArticleen_HK
dc.identifier.openurlhttp://library.hku.hk:4550/resserv?sid=HKU:IR&issn=1058-5893&volume=167&issue=3&spage=483&epage=493&date=2006&atitle=Reproductive+Biology+of+Two+Sympatric+Species+of+Polyalthia+(Annonaceae)+in+Sri+Lanka.+I.+Pollination+by+Curculionid+Beetlesen_HK
dc.identifier.emailSaunders, RMK: saunders@hkucc.hku.hken_HK
dc.identifier.authoritySaunders, RMK=rp00774en_HK
dc.description.naturepublished_or_final_versionen_HK
dc.identifier.doi10.1086/502715en_HK
dc.identifier.scopuseid_2-s2.0-33745040202en_HK
dc.identifier.hkuros116359-
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-33745040202&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume167en_HK
dc.identifier.issue3en_HK
dc.identifier.spage483en_HK
dc.identifier.epage493en_HK
dc.identifier.isiWOS:000238338300009-
dc.publisher.placeUnited Statesen_HK
dc.identifier.scopusauthoridRatnayake, RMCS=55391274300en_HK
dc.identifier.scopusauthoridGunatilleke, IAUN=6602843852en_HK
dc.identifier.scopusauthoridWijesundara, DSA=7801390921en_HK
dc.identifier.scopusauthoridSaunders, RMK=35345489600en_HK

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