Is gene dispersion normal?

Bateman, A. J.

doi:10.1038/hdy.1950.27

Cited by 73 publications

(50 citation statements)

References 9 publications

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“…This was due to heterogeneity of the dispersal movements of the flies. Bateman (1950) has also shown that different forms of gene dispersal tend to show leptokurtic distributions. The histograms of figs.…”

Section: Size Of Coloniesmentioning

confidence: 99%

A possible case of genetic drift in colonies of the land snail Theba pisana

Hickson

1972

Heredity

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Section: Size Of Coloniesmentioning

confidence: 99%

A possible case of genetic drift in colonies of the land snail Theba pisana

Hickson

1972

Heredity

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“…In many species of plants and animals dispersal is leptokurtic (Bateman, 1950;Aikman & Hewitt, 1972;Endler, 1977;Lidicker & Patton, 1987;Waser & Elliot, 1991). Hence, relative to the distances expected if dispersals are normally distributed, many individuals disperse short distances, few intermediate distances and more long distances.…”

Section: Introductionmentioning

confidence: 99%

Spatial patterns of genetic variation generated by different forms of dispersal during range expansion

1996

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We examined the impact of three forms of dispersal, stepping-stone, normal and leptokurtic, on spatial genetic structure of expanding populations using computer simulations. When dispersal beyond neighbouring demes is allowed, rare long-distance migration leads to the establishment of pocket populations in advance of the main invasion front and results in spatial clustering of genotypes which persists for hundreds of generations. Patchiness is more pronounced when dispersal is leptokurtic as is the case in many animal and plant species. These results are of particular interest because population genetic parameters such as gene flow and effective population size are commonly estimated using gene frequency divergence information assuming equilibrium conditions and island models. We show how the three forms of dispersal during colonization bring about contrasting population genetic structures and how this affects estimates of gene flow. The implications for experimental studies of the spatial dimension of population genetic structure are discussed.

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“…Forsman and others (1984), Gutigrrez and others (1984), Sisco and Gutigrrez (1984) and demonstrate a significant association of the owls with old-growth forests. Solis' work is particularly useful in that it describes not only an affinity for old growth, but also describes the forest structure in detail.…”

Section: Habitatmentioning

confidence: 99%

“…Earhart and Johnson (1970) suggest that spotted owls are more insectivorous than current data indicate. Forsman and others (1984) and Sisco 3 / believe that flying squirrels may predominate in the diet of owls living in mesic habitats and woodrats may predominate in more xeric environments. Habitat structure or food availability within these habitats may influence which prey species is most abundant.…”

Section: Home Range and Movementsmentioning

confidence: 99%