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Population structure in the small ermine moth Yponomeuta padelus : an estimate of male dispersal
Author(s) -
BROOKES MARTIN I.,
BUTLIN ROGER K.
Publication year - 1994
Publication title -
ecological entomology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.865
H-Index - 81
eISSN - 1365-2311
pISSN - 0307-6946
DOI - 10.1111/j.1365-2311.1994.tb00398.x
Subject(s) - biology , biological dispersal , population , lepidoptera genitalia , ecology , zoology , demography , sociology
Abstract.1 An extensive investigation was carried out into the structure of a large, effectively continuous population of Yponomeuta padellus Latreille, feeding on hawthorn, Crataegus monogyna , and blackthorn, Prunus spinosa.2 Mark—recapture studies were used to obtain direct estimates of the male dispersal rate, σ, in two successive years. 3 Dispersal was found to be extremely localized with respect to the total area of the study population. Estimates of u ranged from a minimum of 2.47 m to a maximum of 12.5 m. 4 Limited dispersal could be an important factor governing the genetic differentiation of Y.padellus populations, and its implications for the supposed existence of host races in this species are discussed.