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dc.contributor.authorScaccabarozzi, Daniela
dc.contributor.authorGuzzetti, L.
dc.contributor.authorPhillips, R.
dc.contributor.authorMilne, Lynne
dc.contributor.authorTommasi, N.
dc.contributor.authorCozzolino, S.
dc.contributor.authorDixon, Kingsley
dc.identifier.citationScaccabarozzi, D. Guzzetti, L. Phillips, R. Milne, L. Tommasi, N. Cozzolino, S. Dixon, K. 2020. Ecological factors driving pollination success in an orchid that mimics a range of Fabaceae. Botanical Journal of the Linnean Society. 194 (2): pp. 253–269.

Rewarding plants can enhance the pollination success of co-occurring plants pollinated by food mimicry. However, it is not always possible to readily discern between the effect of model and magnet species. Here, we tested for mimicry of co-occurring Fabaceae by the rewardless Diuris magnifica (Orchidaceae) and whether the number of flowers of Fabaceae, habitat remnant size and frequency of conspecifics, influenced the pollination success of D. magnifica. Trichocolletes bees were the primary pollinators of D. magnifica, on which they displayed similar behaviour as seen when feeding on Fabaceae. Quantification of spectral reflectance suggested that flowers of Bossiaea eriocarpa, Daviesia divaricata and Jacksonia sternbergiana may represent models for D. magnifica, whereas Hardenbergia comptoniana strongly differed in colour. Orchid pollination success was not directly affected by the number of model flowers, but the pollination rate was enhanced by increased numbers of Hardenbergia flowers. Pollination success of the orchid decreased with higher density of conspecifics, but did not exhibit a significant relationship with Trichocolletes occurrence, possibly because of the contribution of sub-optimal pollinator species. Fruit set of the orchid was greater in larger habitat remnants. Overall, pollination success of D. magnifica is affected by ecological factors related to the effectiveness of mimicry, numbers of co-flowering plants and anthropogenic landscape alteration.

dc.titleEcological factors driving pollination success in an orchid that mimics a range of Fabaceae
dc.typeJournal Article
dcterms.source.titleBotanical Journal of the Linnean Society
curtin.departmentSchool of Molecular and Life Sciences (MLS)
curtin.accessStatusFulltext not available
curtin.facultyFaculty of Science and Engineering
curtin.contributor.orcidScaccabarozzi, Daniela [0000-0003-2446-8794]
curtin.contributor.orcidDixon, Kingsley [0000-0001-5989-2929]

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