@article{fdi:010055930,
  title = {{E}ffects of fast density dependent dispersal on pre-emptive competition dynamics},
  author = {{D}oanh, {N}. {N}. and {N}guyen-{H}uu, {T}ri and {A}uger, {P}ierre},
  editor = {},
  language = {{ENG}},
  abstract = {{T}he aim of this work is to investigate the effect of density-dependent dispersal on the outcome of competition in a heterogeneous environment. {W}e present a classical spatial interspecific competition model with two patches connected by fast dispersal. {W}e assume local pre-emptive competition, i.e. on each isolated patch, the species having the largest initial density would exclude the other one. {W}e assume that individuals of species 1 disperse at constant dispersal rates, while species 2 dispersal is density dependent. {S}pecies 2 individuals are more likely to disperse when there are many species 1 competitors in a patch. {W}e investigate if a dispersal strategy that aims at avoiding its competitor can be beneficial. {D}ispersal between patches is assumed to be faster than local population dynamics on each patch. {W}e take advantage of these time scales in order to reduce the complete model into an aggregated model governing total densities of both species at a slow time scale. {T}he analysis of this global model shows that using a density dependent strategy for dispersal is beneficial for species 2 in the sense that it prevents its own extinction and even it allows species 2 to exclude species 1 under some conditions.},
  keywords = {{C}ompetition model ; {A}ggregation of variables ; {T}ime scales ; {D}ensity-dependent dispersal ; {E}mergence},
  booktitle = {},
  journal = {{E}cological {C}omplexity},
  volume = {10},
  numero = {{SI}},
  pages = {26--33},
  ISSN = {1476-945{X}},
  year = {2012},
  DOI = {10.1016/j.ecocom.2011.12.003},
  URL = {https://www.documentation.ird.fr/hor/fdi:010055930},
}