Title

Comparative Analyses Of Effective Population Size Within And Among Species: Ranid Frogs As A Case Study

Keywords

Amphibians; Conservation genetics; Genetic diversity; Population genetics; Ranidae

Abstract

It has recently become practicable to estimate the effective sizes (N e) of multiple populations within species. Such efforts are valuable for estimating N e in evolutionary modeling and conservation planning. We used microsatellite loci to estimate N e of 90 populations of four ranid frog species (20-26 populations per species, mean n per population = 29). Our objectives were to determine typical values of N e for populations of each species, compare N e estimates among the species, and test for correlations between several geographic variables and N e within species. We used single-sample linkage disequilibrium (LD), approximate Bayesian computation (ABC), and sibship assignment (SA) methods to estimate contemporary N e for each population. Three of the species-Rana pretiosa, R. luteiventris, and R. cascadae- have consistently small effective population sizes (<50). N e in Lithobates pipiens spans a wider range, with some values in the hundreds or thousands. There is a strong east-to-west trend of decreasing N e in L. pipiens. The smaller effective sizes of western populations of this species may be related to habitat fragmentation and population bottlenecking. © 2011 The Author(s). Evolution © 2011 The Society for the Study of Evolution.

Publication Date

10-1-2011

Publication Title

Evolution

Volume

65

Issue

10

Number of Pages

2927-2945

Document Type

Article

Personal Identifier

scopus

DOI Link

https://doi.org/10.1111/j.1558-5646.2011.01356.x

Socpus ID

80053450461 (Scopus)

Source API URL

https://api.elsevier.com/content/abstract/scopus_id/80053450461

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