Watts, S., Ovalle, D. H., Herrera, M. M. and Ollerton, J. (2012) Pollinator effectiveness of native and non-native flower visitors to an apparently generalist Andean shrub, Duranta mandonii (Verbenaceae). Plant Species Biology. 27(2), pp. 147-158. 0913-557x.
| Item Type: | Article |
|---|---|
| Abstract: | Not all visitors to flowers are pollinators and pollinating taxa can vary greatly in their effectiveness. Using a combination of observations and experiments we compared the effectiveness of introduced honeybees with that of hummingbirds, native bees and moths on both the male and female components of fitness of the Andean shrub Duranta mandonii (Verbenaceae). Our results demonstrated significant variation among flower visitors in rates of visitation, pollen removal ability and contribution to fruit set. This variation was not always correlated; that is, taxa that regularly visited flowers did not remove the most pollen or contribute to fruit set. Despite the taxonomic diversity of visitors, the main natural pollinators of this shrub are large native bees, such as Bombus spp. Introduced honeybees were found to be as effective as native bees at pollinating this species. Duranta mandonii has high apparent generalization, but low realized generalization and can be considered to be a moderate ecological generalist (a number of species of large bees provide pollination services), but a functional specialist (most pollinators belong to a single functional group). The present study has highlighted the importance of measuring efficiency components when documenting plant–pollinator interactions, and has also demonstrated that visitation rates may give little insight into the relative importance of flower visitors |
| Uncontrolled Keywords: | Breeding system, Duranta mandonii, flower visitation rate, pollen removal, pollinator effectiveness |
| Subjects: |
Q Science > QK Botany > QK926 Pollination Q Science > QH Natural history > QH540 Ecology > QH549.5 Animal-plant relationships |
| Creators: | Watts, Stella, Ovalle, David Huaman, Herrera, Marcela Moreno and Ollerton, Jeff |
| Funders or Sponsors: | British Ecological Society, The Biodiversity Trust, The Anglo Peruvian Society, IdeaWild, The Leslie |
| Publisher: | The Society for the Study of Species Biology |
| Faculties, Divisions and Institutes: | Faculties > Faculty of Arts, Science & Technology > Environmental Science |
| Date: | May 2012 |
| Date Type: | Publication |
| Page Range: | pp. 147-158 |
| Journal or Publication Title: | Plant Species Biology |
| Volume: | 27 |
| Number: | 2 |
| Language: | English |
| DOI: | https://doi.org/10.1111/j.1442-1984.2011.00337.x |
| ISSN: | 0913-557x |
| Status: | Published / Disseminated |
| Refereed: | Yes |
| Related URLs: | |
| URI: | http://nectar.northampton.ac.uk/id/eprint/3857 |
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