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Co-evolutionary hot and cold spots of selective pressure move in space and time
- Smith, DL (author)
-
- Ericson, Lars (author)
- Umeå universitet,Institutionen för ekologi, miljö och geovetenskap
- Burdon, JJ (author)
- (creator_code:org_t)
- 2011-01-19
- 2011
- English.
- In: Journal of Ecology. - : Wiley. - 0022-0477 .- 1365-2745. ; 99, s. 634-641
- Journal article (peer-reviewed)
Abstract
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- 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.
Keyword
- co-evolution
- disease
- epidemiology
- longitudinal study
- metapopulation
- plantpathogen
- spatial pattern
Publication and Content Type
- ref (subject category)
- art (subject category)
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