Question: Does limiting similarity apply for co-existence maintained by disturbance in a metapopulation? Methods: In contrast to patch occupancy modelling, we follow both local- and meta-population-scale dynamics explicitly. The theory of structured metapopulations is used for this purpose. Adaptive dynamics is employed to study evolution. Key assumptions: Local catastrophes at a given rate. Fixed dispersal rate, trade-off between fecundity and local competitiveness. Results: Co-existence of a few (up to 5) but not more species is observed. They are distinctly different along the trade-off variable and partition the patch-age axis. A series of evolutionary branchings leads to an evolutionarily stable coalition. Conclusions: The usual niche theoretical picture of decreased competition with increased differentiation applies. The patch age is the proper niche axis. Niche differentiation along this axis is the requirement of co-existence. Constraints of co-existence are overlooked in patch occupancy models.
|Number of pages||16|
|Journal||Evolutionary Ecology Research|
|Publication status||Published - May 1 2009|
ASJC Scopus subject areas
- Ecology, Evolution, Behavior and Systematics