@article{fdi:010049735,
  title = {{C}ompetition and species coexistence in a metapopulation model : can fast asymmetric migration reverse the outcome of competition in a homogeneous environment ?},
  author = {{N}guyen {N}goc, {D}oanh and {B}ravo de la {P}arra, {R}afael and {Z}avala, {M}. {A}. and {A}uger, {P}ierre},
  editor = {},
  language = {{ENG}},
  abstract = {{W}e investigate whether asymmetric fast migration can modify the predictions of classical competition theory and, in particular revert species dominance. {W}e consider a model of two species competing for an implicit resource on a habitat divided into two patches. {B}oth patches are connected through constant migration rates and in each patch local dynamics are driven by a {L}otka-{V}olterra competition system. {L}ocal competition is asymmetric with the same superior competitor in both patches. {M}igration is asymmetric, species dependent and fast in comparison to local competitive interactions. {T}he species and patches are taken to be otherwise similar: in both patches we assume the same carrying capacities for both species, and the same growth rates and pair-wise competition coefficients for each species. {W}e show that global dynamics can be described by a classical {L}otka-{V}olterra competition model. {W}e found that by modifying the ratio of intraspecific migration rates for both species all possible combinations of global species relative dominance can be achieved. {W}e find specific conditions for which the local superior competitor is globally excluded. {T}his is to our knowledge the first study showing that fast asymmetric migration can lead to inferior competitor dominance in a homogeneous environment. {W}e conclude that disparity of temporal scales between migration and local dynamics may have important consequences for the maintenance of biodiversity in spatially structured populations.},
  keywords = {{M}igration-competition trade-off ; {D}ominance reversal ; {T}ime scales ; {A}ggregation methods},
  booktitle = {},
  journal = {{J}ournal of {T}heoretical {B}iology},
  volume = {266},
  numero = {2},
  pages = {256--263},
  ISSN = {0022-5193},
  year = {2010},
  DOI = {10.1016/j.jtbi.2010.06.020},
  URL = {https://www.documentation.ird.fr/hor/fdi:010049735},
}