uu.seUppsala University Publications
Change search
ReferencesLink to record
Permanent link

Direct link
Pollen transfer from invasive Carpobrotus spp. to natives - a study of pollinator behaviour and reproduction success
Uppsala University, Disciplinary Domain of Science and Technology, Biology, Department of Ecology and Evolution, Ecological Botany.
2008 (English)In: Biological Conservation, ISSN 0006-3207, Vol. 141, no 1, 136-145 p.Article in journal (Refereed) Published
Abstract [en]

The influence of invasive plant species on native community composition is well-documented, but less is known about underlying mechanisms. Especially scarce is knowledge about effects on biotic interactions such as relationships between native plants and their pollinators. In this study we investigate if pollen transfer from the invasive and highly pollen productive Carpobrotus spp. affects seed production and/or seed quality in three native species. We monitored pollinator movements and pollen loads on pollinators and native stigmas, and in a field pollination experiment we investigated the effect of invasive pollen on reproduction. Invasive pollen adhered to pollinators, pollinators switched from Carpobrotus spp. to natives, invasive pollen was transferred to native stigmas, and it affected seed production in one species. Although all possible steps for interference with seed production were found to be qualitatively taken, invasive pollen has probably little impact on the native community because the frequency of invasive pollen transfer to natives was low. However, pollination interactions may change with plant abundance and our study provides evidence that pollen transfer from Carpobrotus spp. to natives does occur and have the potential to affect seed production. We found the species identity of shared pollinators to be of importance, higher flower constancy and lower capacity of pollen adherence are likely to result in less invasive pollen transfer.

Place, publisher, year, edition, pages
2008. Vol. 141, no 1, 136-145 p.
Keyword [en]
Invasive plant, Pollen limitation, Pollen load, Pollen transfer, Stigma clogging
National Category
Research subject
Ecological Botany
URN: urn:nbn:se:uu:diva-104887DOI: 10.1016/j.biocon.2007.09.005ISI: 000252206900015OAI: oai:DiVA.org:uu-104887DiVA: diva2:220228
Available from: 2009-05-30 Created: 2009-05-30 Last updated: 2010-01-15Bibliographically approved

Open Access in DiVA

No full text

Other links

Publisher's full text
By organisation
Ecological Botany
In the same journal
Biological Conservation

Search outside of DiVA

GoogleGoogle Scholar
The number of downloads is the sum of all downloads of full texts. It may include eg previous versions that are now no longer available

Altmetric score

Total: 171 hits
ReferencesLink to record
Permanent link

Direct link