@article{aguilee_ecological_2011,
Author = {Aguilée, R. and Lambert, A. and Claessen, D.},
Title = {Ecological speciation in dynamic landscapes},
Journal = {Journal of Evolutionary Biology},
Volume = {24},
Number = {12},
Pages = {2663--2677},
abstract = {Although verbal theories of speciation consider
landscape changes, ecological speciation is usually
modelled in a fixed geographical arrangement. Yet
landscape changes occur, at different spatio-temporal
scales, due to geological, climatic or ecological
processes, and these changes result in repeated
divisions and reconnections of populations. We examine
the effect of such landscape dynamics on speciation. We
use a stochastic, sexual population model with
polygenic inheritance, embedded in a landscape dynamics
model (allopatry-sympatry oscillations). We show that,
under stabilizing selection, allopatry easily generates
diversity, but species coexistence is evolutionarily
unsustainable. Allopatry produces refuges whose
persistence depends on the characteristic time scales
of the landscape dynamics. Under disruptive selection,
assuming that sympatric speciation is impossible due to
Mendelian inheritance, allopatry is necessary for
ecological differentiation. The completion of
reproductive isolation, by reinforcement, then requires
several sympatric phases. These results demonstrate
that the succession of past, current and future
geographical arrangements considerably influence the
speciation process.},
doi = {10.1111/j.1420-9101.2011.02392.x},
issn = {1420-9101},
language = {eng},
month = dec,
pmid = {21954829},
year = 2011
}