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Rall Rall, Ballou Ballou, Brownell Brownell (1983)
Genetic diversity in California sea otters: theoretical considerations and management implicationsConservation Biology, 25
P. Hedrick (1995)
Gene Flow and Genetic Restoration: The Florida Panther as a Case Study.Conservation biology : the journal of the Society for Conservation Biology, 9 5
C. Cockerham (1973)
Analyses of gene frequencies.Genetics, 74 4
S. Wright (1943)
Isolation by Distance.Genetics, 28 2
A. Robertson (1962)
Selection for heterozygotes in small populations.Genetics, 47
R. Lacy (1987)
Loss of Genetic Diversity from Managed Populations: Interacting Effects of Drift, Mutation, Immigration, Selection, and Population SubdivisionConservation Biology, 1
Ronald Chesser, O. Rhodes, Derrick Sugg, Andrew Schnabel (1993)
Effective sizes for subdivided populations.Genetics, 135 4
M. Whitlock, N. Barton (1997)
The effective size of a subdivided population.Genetics, 146 1
M. Slatkin (1985)
Gene Flow in Natural PopulationsAnnual Review of Ecology, Evolution, and Systematics, 16
K. Ralls, J. Ballou, R. Brownell (1983)
Genetic diversity in California sea otters: Theoretical considerations and management implicationsBiological Conservation, 25
Frankham Frankham (1995b)
Effective population‐size adult‐population size ratios in wildlife: a reviewGenetical Research, 66
(1938)
Size of population and breeding structure in relation to evolution
D. Couvet (2002)
Deleterious Effects of Restricted Gene Flow in Fragmented PopulationsConservation Biology, 16
Jinliang Wang, A. Caballero (1999)
Developments in predicting the effective size of subdivided populationsHeredity, 82
D. Ebert, C. Haag, M. Kirkpatrick, M. Riek, J. Hottinger, V. Pajunen (2002)
A Selective Advantage to Immigrant Genes in a Daphnia MetapopulationScience, 295
J. Endler (1977)
Geographic variation, speciation, and clines.Monographs in population biology, 10
S. Wright (1931)
Evolution in Mendelian Populations.Genetics, 16 2
P. Ingvarsson, M. Whitlock (2000)
Heterosis increases the effective migration rateProceedings of the Royal Society of London. Series B: Biological Sciences, 267
S. Varvio, R. Chakraborty, M. Nei (1986)
Genetic variation in subdivided populations and conservation geneticsHeredity, 57
E. Bryant, V. Backus, M. Clark, D. Reed (1999)
Experimental Tests of Captive Breeding for Endangered SpeciesConservation Biology, 13
D. Johnson (1977)
Inbreeding in populations with overlapping generations.Genetics, 87 3
D. Spielman, R. Frankham (1992)
Modeling problems in conservation genetics using captive Drosophila populations: Improvement of reproductive fitness due to immigration of one individual into small partially inbred populationsZoo Biology, 11
P. Greenwood (1980)
Mating systems, philopatry and dispersal in birds and mammalsAnimal Behaviour, 28
J. Vucetich, T. Waite (2000)
Is one migrant per generation sufficient for the genetic management of fluctuating populations?Animal Conservation, 3
M. Whitlock, D. Mccauley (1999)
Indirect measures of gene flow and migration: FST≠1/(4Nm+1)Heredity, 82
Jinliang Wang (1997)
Effective size and F-statistics of subdivided populations. II. Dioecious species.Genetics, 146 4
M. Whitlock (1992)
TEMPORAL FLUCTUATIONS IN DEMOGRAPHIC PARAMETERS AND THE GENETIC VARIANCE AMONG POPULATIONSEvolution, 46
L. Mills, F. Allendorf (1996)
The One‐Migrant‐per‐Generation Rule in Conservation and ManagementConservation Biology, 10
A. Caballero (1994)
Developments in the prediction of effective population sizeHeredity, 73
S. Margan, R. Nurthen, M. Montgomery, L. Woodworth, Edwin Lowe, D. Briscoe, R. Frankham (1998)
Single large or several small? Population fragmentation in the captive management of endangered speciesZoo Biology, 17
P. Hedrick, D. Levin (1984)
Kin-Founding and the Fixation of Chromosomal VariantsThe American Naturalist, 124
Geoffrey Smith, J. Iverson (2002)
Sex Ratio of Common Musk Turtles (Sternotherus odoratus) in aNorth-Central Indiana Lake: a Long-Term Study, 148
Derrick Sugg, Ronald Chesser (1994)
Effective population sizes with multiple paternity.Genetics, 137 4
J. Crow, M. Kimura (1971)
An introduction to population genetics theory
B. Latter (1973)
The island model of population differentiation: a general solution.Genetics, 73 1
C. Cockerham (1969)
VARIANCE OF GENE FREQUENCIESEvolution, 23
L. Mills, Peter Smouse (1994)
Demographic Consequences of Inbreeding in Remnant PopulationsThe American Naturalist, 144
Frankham Frankham (1995a)
Conservation geneticsAnnual Review of Genetics, 29
W. Ewens (1999)
Genetics and analysis of quantitative traitsAmerican Journal of Human Biology, 11
M. Kimura, G. Weiss (1964)
The Stepping Stone Model of Population Structure and the Decrease of Genetic Correlation with Distance.Genetics, 49 4
J. Crow, Kenichi AOKIt (1984)
Group selection for a polygenic behavioral trait: estimating the degree of population subdivision.Proceedings of the National Academy of Sciences of the United States of America, 81 19
I. Stout, O. Frankel, M. Soulé (1983)
Conservation and EvolutionJournal of Wildlife Management, 47
Dara Newman, D. Tallmon (2001)
Experimental Evidence for Beneficial Fitness Effects of Gene Flow in Recently Isolated PopulationsConservation Biology, 15
N. Takahata, M. Nei (1984)
FST and GST statistics in the finite island modelGenetics, 107
I. Saccheri, P. Brakefield (2002)
Rapid spread of immigrant genomes into inbred populationsProceedings of the Royal Society of London. Series B: Biological Sciences, 269
Ronald Chesser (1991)
Influence of gene flow and breeding tactics on gene diversity within populations.Genetics, 129 2
D. Levin (1988)
Consequences of Stochastic Elements in Plant MigrationThe American Naturalist, 132
Ronald Chesser (1991)
Gene diversity and female philopatry.Genetics, 127 2
Abstract: Endangered species are commonly found in several (partially) isolated populations dispersed on different fragments of a habitat, natural reserve, or zoo. A certain level of connectivity among such populations is essential for maintaining genetic variation within and between populations to allow local and global adaptation and for preventing inbreeding depression. A rule of thumb widely accepted by the conservation community is that one migrant per generation (OMPG) into a population is the appropriate level of gene flow. This rule is based on Wright's study of his island model under a long list of simplifying assumptions. I examined the robustness of the OMPG rule to the violation of each of the many assumptions, quantifying the effect with population genetics theory. I showed that, when interpreted as one effective migrant per generation, OMPG is generally valid for real populations departing from the ideal model in the discrepancies of actual ( N) and effective ( Ne ) population sizes and actual (m) and effective (me ) migration rates. I also addressed the issue of converting the effective number of migrants ( Me= Neme ) into the actual number of migrants (M = Nm ) of a certain age and sex. In particular, Ne< N, a case common for natural populations, did not necessarily require M > Meto maintain a certain level of differentiation among populations. Rather, translating the elusive Meinto the manageable M depends on the specific causes (e.g., biased sex ratio, reproductive skew) that lead to Ne< N.
Conservation Biology – Wiley
Published: Apr 1, 2004
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