The molecular phylogenetics of endangerment: cryptic variation and historical phylogeography of the California tiger salamander, Ambystoma californiense

Molecular Ecology
H B ShafferPeter C Trenham

Abstract

A primary goal of conservation genetics is the discovery, delimitation and protection of phylogenetic lineages within sensitive or endangered taxa. Given the importance of lineage protection, a combination of phylogeography, historical geology and molecular clock analyses can provide an important historical context for overall species conservation. We present the results of a range-wide survey of genetic variation in the California tiger salamander, Ambystoma californiense, as well as a summary of the past several million years of inundation and isolation of the Great Central Valley and surrounding uplands that constitute its limited range. A combination of population genetic and phylogenetic analyses of mitochondrial DNA variation among 696 samples from 84 populations revealed six well-supported genetic units that are geographically discrete and characterized by nonoverlapping haplotype distributions. Populations from Santa Barbara and Sonoma Counties are particularly well differentiated and geographically isolated from all others. The remaining units in the Southern San Joaquin Valley, Central Coast Range, Central Valley and Bay Area are separated by geological features, ecological zone boundaries, or both. The geological his...Continue Reading

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Citations

Jul 28, 2009·BMC Evolutionary Biology·Benjamin M FitzpatrickS Randal Voss
Jan 13, 2006·Proceedings of the National Academy of Sciences of the United States of America·Catherine C FernandezJohn N Thompson
Sep 22, 2007·Proceedings of the National Academy of Sciences of the United States of America·Benjamin M Fitzpatrick, H Bradley Shaffer
May 11, 2007·Ecological Applications : a Publication of the Ecological Society of America·Benjamin M Fitzpatrick, H Bradley Shaffer
Oct 6, 2015·Molecular Ecology·Evan McCartney-Melstad, H Bradley Shaffer
Sep 5, 2007·Evolution; International Journal of Organic Evolution·Stylianos Chatzimanolis, Michael S Caterino
Jul 12, 2008·Conservation Biology : the Journal of the Society for Conservation Biology·Christopher A Searcy, H Bradley Shaffer
Jan 13, 2015·Annual Review of Animal Biosciences·H Bradley ShafferErin M Toffelmier
Apr 12, 2016·Molecular Ecology·Robert K Wayne, H Bradley Shaffer
Dec 11, 2007·Systematic Biology·H Bradley Shaffer, Robert C Thomson
Nov 9, 2010·Molecular Ecology·Leslie J Rissler, Walter H Smith
Jun 9, 2019·International Journal of Molecular Sciences·Maria M RomeirasMónica Moura
Jan 11, 2017·Annals of Botany·Kristina A Schierenbeck
Jul 11, 2018·Ecology and Evolution·Dana LinRauri C K Bowie
Dec 16, 2018·Scientific Reports·Melissa C KeinathJeramiah J Smith
Apr 24, 2021·Proceedings of the National Academy of Sciences of the United States of America·Kathryn M EversonDavid W Weisrock
Mar 1, 2016·Molecular Ecology·Christine Ewers-SaucedoJohn P Wares

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