Projects per year
Abstract / Description of output
Little is known about the stability of trophic relationships in complex natural communities over evolutionary timescales. Here, we use sequence data from 18 nuclear loci to reconstruct and compare the intraspecific histories of major Pleistocene refugial populations in the Middle East, the Balkans and Iberia in a guild of four Chalcid parasitoids (Cecidostiba fungosa, Cecidostiba semifascia, Hobbya stenonota and Mesopolobus amaenus) all attacking Cynipid oak galls. We develop a likelihood method to numerically estimate models of divergence between three populations from multilocus data. We investigate the power of this framework on simulated data, andusing triplet alignments of intronic lociquantify the support for all possible divergence relationships between refugial populations in the four parasitoids. Although an East to West order of population divergence has highest support in all but one species, we cannot rule out alternative population tree topologies. Comparing the estimated times of population splits between species, we find that one species, M.similar to amaenus, has a significantly older history than the rest of the guild and must have arrived in central Europe at least one glacial cycle prior to other guild members. This suggests that although all four species may share a common origin in the East, they expanded westwards into Europe at different times.
Original language | English |
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Pages (from-to) | 4605-4617 |
Number of pages | 13 |
Journal | Molecular Ecology |
Volume | 21 |
Issue number | 18 |
DOIs | |
Publication status | Published - Sept 2012 |
Keywords / Materials (for Non-textual outputs)
- community assembly
- comparative phylogeography
- maximum likelihood
- population divergence
Fingerprint
Dive into the research topics of 'A likelihood-based comparison of population histories in a parasitoid guild'. Together they form a unique fingerprint.Projects
- 5 Finished
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CLIMAFO: Climate change and management of forest biodiversity: predicting the impacts of climate matching strategies
1/01/10 → 31/12/12
Project: Research
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Using multispecies evolutionary history to test hypotheses of community assembly
14/12/07 → 13/06/11
Project: Research
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Phylogenetic analyses of community structure: Oak gallwasps as a model system
30/09/05 → 30/09/05
Project: Research
Activities
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ESEB/SSE Meeting 2012
Graham Stone (Keynote/plenary speaker)
6 Jul 2012Activity: Participating in or organising an event types › Participation in conference
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International Workshop on Population Genomics
Graham Stone (Speaker)
3 Jun 2012 → 7 Jun 2012Activity: Consultancy types › Contribution to the work of national or international committees and working groups