---
res:
bibo_abstract:
- This paper derives the long-term effective size, Ne, for a general model of population
subdivision, allowing for differential deme fitness, variable emigration and immigration
rates, extinction, colonization, and correlations across generations in these
processes. We show that various long-term measures of Ne are equivalent. The effective
size of a metapopulation can be expressed in a variety of ways. At a demographic
equilibrium, Ne can be derived from the demography by combining information about
the ultimate contribution of each deme to the future genetic make-up of the population
and Wright's FST's. The effective size is given by Ne = 1/(1 + var (upsilon) ((1
- FST)/Nin), where n is the number of demes, theta i is the eventual contribution
of individuals in deme i to the whole population (scaled such that sigma theta
i = n), and < > denotes an average weighted by theta i. This formula is
applied to a catastrophic extinction model (where sites are either empty or at
carrying capacity) and to a metapopulation model with explicit dynamics, where
extinction is caused by demographic stochasticity and by chaos. Contrary to the
expectation from the standard island model, the usual effect of population subdivision
is to decrease the effective size relative to a panmictic population living on
the same resource.@eng
bibo_authorlist:
- foaf_Person:
foaf_givenName: Michael
foaf_name: Whitlock, Michael
foaf_surname: Whitlock
- foaf_Person:
foaf_givenName: Nicholas H
foaf_name: Nicholas Barton
foaf_surname: Barton
foaf_workInfoHomepage: http://www.librecat.org/personId=4880FE40-F248-11E8-B48F-1D18A9856A87
orcid: 0000-0002-8548-5240
bibo_issue: '1'
bibo_volume: 146
dct_date: 1997^xs_gYear
dct_publisher: Genetics Society of America@
dct_title: The effective size of a subdivided population@
...