THE ECOLOGICAL GENETICS OF INTRODUCED POPULATIONS OF THE GIANT TOAD BUFO MARINUS. II. EFFECTIVE POPULATION SIZE | Zendy

Simon Easteal | Zendy

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THE ECOLOGICAL GENETICS OF INTRODUCED POPULATIONS OF THE GIANT TOAD BUFO MARINUS. II. EFFECTIVE POPULATION SIZE

Author(s) -

Simon Easteal

Publication year - 1985

Publication title -

genetics

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 2.792

H-Index - 246

eISSN - 1943-2631

pISSN - 0016-6731

DOI - 10.1093/genetics/110.1.107

Subject(s) - biology , bufo marinus , bufo , toad , population genetics , allele frequency , ecology , allele , homogeneous , effective population size , population , evolutionary biology , ecological genetics , population size , zoology , genetics , genetic variation , demography , gene , statistical physics , sociology , physics

The allele frequencies are described at ten polymorphic enzyme loci (of a total of 22 loci sampled) in 15 populations of the neotropical giant toad, Bufo marinus, introduced to Hawaii and Australia in the 1930s. The history of establishment of the ten populations is described and used as a framework for the analysis of allele frequency variances. The variances are used to determine the effective sizes of the populations. The estimates obtained (390 and 346) are reasonably precise, homogeneous between localities and much smaller than estimates of neighborhood size obtained previously using ecological methods. This discrepancy is discussed, and it is concluded that the estimates obtained here using genetic methods are the more reliable.

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