@article{PAR00002539, title = {{B}eta diversity in spatially implicit neutral models : a new way to assess species migration}, author = {{M}unoz, {F}. and {C}outeron, {P}ierre and {R}amesh, {B}. {R}.}, editor = {}, language = {{ENG}}, abstract = {{T}he spatially implicit neutral model ({SINM}) of {S}. {P}. {H}ubbell predicts species' abundance distributions at two levels: local communities where extinction balances immigration, characterized by the immigration number {I}, and the metacommunity, a source pool of migrants where speciation balances extinction. {P}reviously, a plot's {I} was estimated from its species abundance distribution. {H}ere, we relate neutral theory to the additive partitioning of species diversity and calculate the immigration rate into different plots from the variation in species composition among them. {W}e revisit the {G}({ST}) statistic of population genetics to introduce a new version, {G}({ST})(k), conditional on each community sample k. {W}e derive an analytical expectation of {G}({ST})(k) as a function of the local immigration number, {I}(k), under a generalized version of the {SINM}, which allows the pool of migrants to deviate from the large-scale speciation-extinction balance. {S}imulations and field data suggest that {G}({ST})(k) provides reasonable estimates of immigration numbers, which were compared with the results from alternative likelihood-based estimations.}, keywords = {{D}iversity partitioning ; {G}(st) ; {I}mmigration rate ; {S}ampling ; {S}patially implicit neutral model ; {S}imilarity estimators}, booktitle = {}, journal = {{A}merican {N}aturalist}, volume = {172}, numero = {1}, pages = {116--127}, ISSN = {0003-0147}, year = {2008}, DOI = {10.1086/587842}, URL = {https://www.documentation.ird.fr/hor/{PAR}00002539}, }