Co-evolutionary hot and cold spots of selective pressure move in space and time
Article first published online: 19 JAN 2011
© 2011 CSIRO. Journal of Ecology © 2011 British Ecological Society
Journal of Ecology
Volume 99, Issue 2, pages 634–641, March 2011
How to Cite
Smith, D. L., Ericson, L. and Burdon, J. J. (2011), Co-evolutionary hot and cold spots of selective pressure move in space and time. Journal of Ecology, 99: 634–641. doi: 10.1111/j.1365-2745.2010.01788.x
- Issue published online: 15 FEB 2011
- Article first published online: 19 JAN 2011
- Received 13 June 2010; accepted 3 December 2010 Handling Editor: Jonathan Newman
- longitudinal study;
- spatial pattern
1. A long-term study (19 years) of a host–pathogen metapopulation involving 133–220 separate populations of the wild plant Filipendula ulmaria and its rust pathogen Triphragmium ulmariae shows marked changes in the occurrence (32–55% demes) and severity of disease and rates of extinction and re-establishment of individual populations (0.006–0.174 and 0.030–0.195 per annum, respectively) over time.
2. Modelling of the spatio-temporal dynamics of disease demonstrated year-to-year changes associated with a range of different environmental features, but also more consistent, longer-term patterns influenced by a complex suite of factors.
3. Both the level of disease and its spatial location varied through time and generated a changing pattern of selective pressure across the metapopulation.
4. Synthesis. Our results suggest that co-evolutionary hot spots and cold spots can be highly dynamic within metapopulations, thereby fuelling the co-evolutionary process even more than previously suspected.