- Title
- Speciation, adaptation and interspecific competition
- Creator
- Walter, Grenville H, Hulley, Patrick E, Craig, Adrian J F K
- Subject
- To be catalogued
- Date
- 1984
- Type
- article
- Identifier
- http://hdl.handle.net/10962/465486
- Identifier
- vital:76613
- Identifier
- https://doi.org/10.2307/3544775
- Description
- The species concept and current ideas on speciation are relevant to the debate on the significance of competition theory in community ecology. The speciation event and the subsequent post-speciation history of a species must be distinguished when applying competition theory. For post-speciation events we draw the important distinction between local and species-wide adaptations attributed to the action of competition. These ideas have the following consequences for community ecology. (1) Competition may have a limited evolutionary role at speciation. It is one of the possible factors that influence adaptation in the small isolated populations that are the major, or only, source of new species. This would occur where competition is sustained because of a consistent limiting resource such as space for sessile animals. (2) Once a new species comes under stabilising selection and expands, competition can produce only local and relatively minor adaptations. The acquisition of species-wide characteristics because of competition requires an improbable set of conditions. (3) The concept of an "organised" community, particularly if it carries evolutionary connotations, is unrealistic.
- Format
- 2 pages, pdf
- Language
- English
- Relation
- Oikos, Walter, G.H., Hulley, P.E. and Craig, A.J.F.K., 1984. Speciation, adaptation and interspecific competition. Oikos, pp.246-248, Oikos volume 1984 number 246 248 1984 1600-0706
- Rights
- Publisher
- Rights
- Use of this resource is governed by the terms and conditions of the Wiley Library Online Terms of Use Statement (https://onlinelibrary.wiley.com/terms-and-conditions)
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Collections
Craig, Adrian JFK (Prof)
Hulley, Patrick Elliot (Assoc Prof Emeritus)
SDG 15. Life On Land
RU Department of Zoology and Entomology
| Thumbnail | File | Description | Size | Format | |||
|---|---|---|---|---|---|---|---|
| View Details | SOURCE1 | Speciation, Adaptation and Interspecific Competition.pdf | 632 KB | Adobe Acrobat PDF | View Details |