Silvertown, Jonathan
(2004).
| DOI (Digital Object Identifier) Link: | http://dx.doi.org/doi:10.1111/j.1365-2745.2004.00853.x |
|---|---|
| Google Scholar: | Look up in Google Scholar |
Abstract
1 Large endemic plant taxa found on oceanic archipelagos are frequently monophyletic, indicating that they originate from a single colonization event. 2 Colonization is a two-stage process requiring both dispersal and establishment to be successful. Accordingly, once-only colonization may be explained either by dispersal barriers limiting colonization, or by the first successful colonization of an island inhibiting the establishment of later arrivals through niche pre-emption and interspecific competition. 3 Using the endemic flora of the Canaries and Macaronesia as a test case, I argue that barriers to dispersal are low and that niche pre-emption is therefore the more likely explanation for the monophyly of large endemic groups in these islands.
| Item Type: | Journal Article |
|---|---|
| ISSN: | 1365-2745 |
| Extra Information: | Visit the author's website at:
http://www.open.ac.uk/science/biosci/personalpages/j.silvertown/index.htm |
| Keywords: | Canary Islands; colonization; endemism; interspecific competition; Macaronesia; niche pre-emption; phylogeny; plants; speciation; nuclear ribosomal dna; internal transcribed spacers; olea-europaea l.; canary-islands; molecular phylogeny; sequence data; macaronesian islands; tolpis asteraceae; field experiments; evolution |
| Academic Unit/Department: | Science > Environment, Earth and Ecosystems |
| Interdisciplinary Research Centre: | Centre for Earth, Planetary, Space and Astronomical Research (CEPSAR) |
| Item ID: | 2300 |
| Depositing User: | Jonathan Silvertown |
| Date Deposited: | 14 Nov 2006 |
| Last Modified: | 21 Oct 2011 08:26 |
| URI: | http://oro.open.ac.uk/id/eprint/2300 |
Actions (login may be required)
| View Item | |
| Report issue / request change |