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dc.contributor.authorBacles, Cecileen_UK
dc.contributor.authorBrooks, Jenniferen_UK
dc.contributor.authorLee, David Jen_UK
dc.contributor.authorSchenk, Peer Men_UK
dc.contributor.authorLowe, Andrew Jen_UK
dc.contributor.authorKremer, Antoineen_UK
dc.description.abstractThe spotted gum species complex represent a group of four eucalypt hardwoods which have a native range that spans down the east coast of Australia, with a morphological cline from Victoria to northern Queensland. Of this group, Corymbia citriodora subsp. variegata (CCV), is widespread in southeast Queensland and northern New South Wales. It is currently the most commonly harvested native hardwood in Queensland. However, little basic knowledge of the reproductive biology of the species is available to inform genetic improvement and resource management programmes. Here we take an integrative approach, using both field and molecular data, to identify ecological factors important to mating patterns in native populations of CCV. Field observation of pollinator visitation and flowering phenology of 20 trees shows that foraging behaviour of pollinator guilds varies depending on flowering phenology and canopy structure. A positive effect of tree mean flowering effort was found on insect visitation, while bat visitation was predicted by tree height and by the number of trees simultaneously bearing flowers. Moreover, introduced honeybees were observed frequently, performing 73% of detected flower visits. Conversely, nectar-feeding birds and mammals were observed sporadically with lorikeets and honeyeaters each contributing to 11% of visits. Fruit bats, represented solely by the grey-headed flying fox, performed less than 2% of visits. Genotyping at six microsatellite markers in 301 seeds from 17 families sampled from four of Queensland’s native forests shows that CCV displays a mixed-mating system which is mostly outcrossing (tm=0.899±0.021). Preferential effective pollination from near-neighbours was detected by means of maximum-likelihood paternity analysis with up to sixteen percent of reproduction events resulting from selfing. Forty to forty-eight percent of fertilising pollen was also carried from longer distance (> 60m). Marked differences in foraging behaviour and visitation frequency between observed pollinator guilds suggests that the observed dichotomy of effective pollen movement in spotted gums may be due to frequent visit from introduced honeybees favouring geitonogamy and sporadic visits from honeyeaters and fruit bats resulting in potential long-distance pollinations.en_UK
dc.publisherNational Inquiry Services Centre (NISC) / Southern African Institute of Forestry (SAIF)en_UK
dc.relationBacles C, Brooks J, Lee DJ, Schenk PM, Lowe AJ & Kremer A (2009) Reproductive biology of Corymbia citriodora subsp. variegata and effective pollination across its native range in Queensland, Australia. Southern Forests: A Journal of Forest Science, 71 (2), pp. 125-132.;
dc.rightsThe publisher has not responded to our queries therefore this work cannot be made publicly available in this Repository. Please use the Request a Copy feature at the foot of the Repository record to request a copy directly from the author; you can only request a copy if you wish to use this work for your own research or private study.en_UK
dc.subjectcontemporary gene flowen_UK
dc.subjectSpotted gumsen_UK
dc.subjectmating systemen_UK
dc.subjectpollinator visitationen_UK
dc.subjectreproductive biologyen_UK
dc.titleReproductive biology of Corymbia citriodora subsp. variegata and effective pollination across its native range in Queensland, Australiaen_UK
dc.typeJournal Articleen_UK
dc.rights.embargoreason[Baclesetal_2009_SouthernForests71_125_132.pdf] The publisher has not responded to our queries. This work cannot be made publicly available in this Repository therefore there is an embargo on the full text of the work.en_UK
dc.citation.jtitleSouthern Forests: a Journal of Forest Scienceen_UK
dc.type.statusAM - Accepted Manuscripten_UK
dc.contributor.affiliationBiological and Environmental Sciencesen_UK
dc.contributor.affiliationUniversity of Queenslanden_UK
dc.contributor.affiliationThe State of Queensland Department of Primary Industries and Fisheriesen_UK
dc.contributor.affiliationUniversity of Queenslanden_UK
dc.contributor.affiliationThe State of Queensland Department of Primary Industries and Fisheriesen_UK
dc.contributor.affiliationInstitut National de la Recherche Agronomiqueen_UK
rioxxterms.typeJournal Article/Reviewen_UK
local.rioxx.authorBacles, Cecile|en_UK
local.rioxx.authorBrooks, Jennifer|en_UK
local.rioxx.authorLee, David J|en_UK
local.rioxx.authorSchenk, Peer M|en_UK
local.rioxx.authorLowe, Andrew J|en_UK
local.rioxx.authorKremer, Antoine|en_UK
local.rioxx.projectInternal Project|University of Stirling|
Appears in Collections:Biological and Environmental Sciences Journal Articles

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