@article{fdi:010040751,
  title = {{S}elf-organization in a simple consumer-resource system, the example of earthworms},
  author = {{B}arot, {S}{\'e}bastien and {R}ossi, {J}. {P}. and {L}avelle, {P}atrick},
  editor = {},
  language = {{ENG}},
  abstract = {{C}lassical predator-prey or host-parasitoid models often lead to spatial self-organization due to local interactions and limited dispersal ability of the resource (prey or host) and consumers (predator or parasitoid). {W}e hypothesized that self-organization may also arise in soil organisms when the resource is passive and has a constant renewal rate. {E}arthworm density is correlated with soil properties, but soil heterogeneity only explains a small proportion of spatial variations in earthworm densities. {W}e hypothesized that this could be partially due to self-organization. {T}hese two hypotheses were tested with an original model parameterized for a savannah earthworm population. {T}he model simulates an earthworm population divided in 1 m(2) cells. {I}t is based on the assumption that fine soil aggregates constitute the only limiting resource influencing mortality, fecundity and dispersal and that this resource is renewed according to a constant rate independent of earthworm dynamics. {S}imulations lead to aggregated spatial distributions when the sensitivity of mortality or fecundity to the availability of the limiting resource is high, and when earthworm mobility is low. {S}uch parameters values are consistent with what is known about earthworm biology. {A}pplicability to different ecological systems and resulting population dynamical properties are discussed.},
  keywords = {earthworm ; self organization ; spatial distribution ; soil structure ; spatial demography},
  booktitle = {},
  journal = {{S}oil {B}iology and {B}iochemistry},
  volume = {39},
  numero = {9},
  pages = {2230--2240},
  ISSN = {0038-0717},
  year = {2007},
  DOI = {10.1016/j.soilbio.2007.03.021},
  URL = {https://www.documentation.ird.fr/hor/fdi:010040751},
}