@article{fdi:010060592,
  title = {{D}o spatially-implicit estimates of neutral migration comply with seed dispersal data in tropical forests ?},
  author = {{M}unoz, {F}. and {B}eeravolu, {C}. {R}. and {P}{\'e}lissier, {R}apha{\¨e}l and {C}outeron, {P}ierre},
  editor = {},
  language = {{ENG}},
  abstract = {{N}eutral community models have shown that limited migration can have a pervasive influence on the taxonomic composition of local communities even when all individuals are assumed of equivalent ecological fitness. {N}otably, the spatially implicit neutral theory yields a single parameter / for the immigration-drift equilibrium in a local community. {I}n the case of plants, seed dispersal is considered as a defining moment of the immigration process and has attracted empirical and theoretical work. {I}n this paper, we consider a version of the immigration parameter / depending on dispersal limitation from the neighbourhood of a community. {S}eed dispersal distance is alternatively modelled using a distribution that decreases quickly in the tails (thin-tailed {G}aussian kernel) and another that enhances the chance of dispersal events over very long distances (heavily fat-tailed {C}auchy kernel). {O}ur analysis highlights two contrasting situations, where / is either mainly sensitive to community size (related to ecological drift) under the heavily fat-tailed kernel or mainly sensitive to dispersal distance under the thin-tailed kernel. {W}e review dispersal distances of rainforest trees from field studies and assess the consistency between published estimates of / based on spatially-implicit models and the predictions of the kernel-based model in tropical forest plots. {M}ost estimates of / were derived from large plots (10-50 ha) and were too large to be accounted for by a {C}auchy kernel. {C}onversely, a fraction of the estimates based on multiple smaller plots (1 ha) appeared too small to be consistent with reported ranges of dispersal distances in tropical forests. {V}ery large estimates may reflect within-plot habitat heterogeneity or estimation problems, while the smallest estimates likely imply other factors inhibiting migration beyond dispersal limitation. {O}ur study underscores the need for interpreting / as an integrative index of migration limitation which, besides the limited seed dispersal, possibly includes habitat filtering or fragmentation.},
  keywords = {{ZONE} {TROPICALE}},
  booktitle = {},
  journal = {{P}lo{S} {O}ne},
  volume = {8},
  numero = {8},
  pages = {art. e72497},
  ISSN = {1932-6203},
  year = {2013},
  DOI = {10.1371/journal.pone.0072497},
  URL = {https://www.documentation.ird.fr/hor/fdi:010060592},
}