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DISPERSAL IN THE WOOD FROG ( RANA SYLVATICA ): IMPLICATIONS FOR GENETIC POPULATION STRUCTURE
Author(s) -
Berven Keith A.,
Grudzien Thaddeus A.
Publication year - 1990
Publication title -
evolution
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.84
H-Index - 199
eISSN - 1558-5646
pISSN - 0014-3820
DOI - 10.1111/j.1558-5646.1990.tb04310.x
Subject(s) - biology , biological dispersal , population , gene flow , genetic structure , ecology , breed , effective population size , juvenile , mating , mark and recapture , zoology , genetic variation , demography , genetics , sociology , gene
Recapture of marked juvenile and adult wood frogs in five Appalachian Mountain ponds showed adults to be 100% faithful to the ponds in which they first bred, but approximately 18% of the juveniles dispersed to breed in ponds other than the one of origin. Effective population sizes were generally smaller than the population censuses and genetic neighborhoods had an average radius of 1,126 meters. Values of standardized genetic variance based on effective population size and mating success were relatively small. Genetic population structure estimated from the dispersal data suggested that ponds within about a 1,000 meter radius should show little genetic differentiation; ponds separated by a distance greater than 1,000 meters should experience little gene flow and show higher genetic differentiation. Wood frogs in these ponds do not show a meta‐population structure as suggested for newts.