The University of Dublin | Trinity College -- Ollscoil Átha Cliath | Coláiste na Tríonóide
Trinity's Access to Research Archive
Home :: Log In :: Submit :: Alerts ::

TARA >
School of Natural Science >
Botany >
Botany (Scholarly Publications) >

Please use this identifier to cite or link to this item: http://hdl.handle.net/2262/15238

Title: Pollination ecology and seed production of Rhododendron ponticum in native and exotic habitats
Author: PARNELL, JOHN ADRIAN NAICKER
STOUT, JANE CATHERINE
Sponsor: Enterprise Ireland
Author's Homepage: http://people.tcd.ie/stoutj
http://people.tcd.ie/jparnell
Keywords: Exotic plants
Generalism
Invasive plants
Maternal reproductive success
Mutualism
Relict plants
Rhododendron ponticum
Issue Date: 2006
Publisher: Springer
Citation: Stout, J.C. and Parnell, J.A.N. and Arroyo, J. and Crowe, T.P. 'Pollination ecology and seed production of Rhododendron ponticum in native and exotic habitats' in Biodiversity and Conservation, 15, (2), 2006, pp. 755 - 777.
Series/Report no.: 15
2
Biodiversity and Conservation
Abstract: Alien plants may be reproductively limited in exotic habitats because of a lack of mutualistic pollinators. However, if plants are adequately served by generalist pollinators, successful reproduction, naturalisation and expansion into exotic habitats may occur. Rhododendron ponticum is very successful, ecologically damaging invasive plant in Britain and Ireland, but is in decline in its native Iberian habitat. It spreads locally by sending out lateral branches, but for longer distance dispersal it relies on sexually produced seeds. Little is known about R. ponticum’s pollination ecology and breeding biology in invaded habitats. We examined the flower-visiting communities and maternal reproductive success of R. ponticum in native populations in southern Spain and in exotic ones in Ireland. R. ponticum in flowers are visited by various generalist (polylectic) pollinator species in both native and exotic habitats. Although different species visited flowers in Ireland and Spain, the flower visitation rate was not significantly different. Insects foraging on R. ponticum in Spain carried less R. ponticum pollen than their Irish counterparts, and carried fewer pollen types. Fruit production per inflorescence varied greatly within all populations but was significantly correlated with visitation at the population level. Nectar was significantly depleted by insects in some exotic populations, suggesting that this invasive species is providing a floral resource for native insects in some parts of Ireland. The generality of the pollination system may be factor contributing to R. ponticum’s success in exotic habitats.
Description: PUBLISHED
URI: http://www.springerlink.com/content/n8767j81k0372056/fulltext.pdf
http://www.springerlink.com/content/n8767j81k0372056/fulltext.pdf
http://hdl.handle.net/2262/15238
Appears in Collections:Botany (Scholarly Publications)

Files in This Item:

File Description SizeFormat
stout et al 2006 biodiv conserv pre publisher branding.pdfpostprint269.58 kBAdobe PDFView/Open


This item is protected by original copyright


Please note: There is a known bug in some browsers that causes an error when a user tries to view large pdf file within the browser window. If you receive the message "The file is damaged and could not be repaired", please try one of the solutions linked below based on the browser you are using.

Items in TARA are protected by copyright, with all rights reserved, unless otherwise indicated.

 

Valid XHTML 1.0! DSpace Software Copyright © 2002-2010  Duraspace - Feedback