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Co-evolutionary hot and cold spots of selective pressure move in space and time
Umeå University, Faculty of Science and Technology, Department of Ecology and Environmental Sciences.
2011 (English)In: Journal of Ecology, ISSN 0022-0477, E-ISSN 1365-2745, Vol. 99, 634-641 p.Article in journal (Refereed) Published
Abstract [en]

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.

Place, publisher, year, edition, pages
2011. Vol. 99, 634-641 p.
Keyword [en]
co-evolution, disease, epidemiology, longitudinal study, metapopulation, plantpathogen, spatial pattern
URN: urn:nbn:se:umu:diva-39555DOI: 10.1111/j.1365-2745.2010.01788.xOAI: diva2:393779
Article first published online: 19 JAN 2011.Available from: 2011-02-01 Created: 2011-02-01 Last updated: 2011-02-10Bibliographically approved

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