Phylogeography and evolution of the Red Salamander (Pseudotriton ruber)

Folt, Brian; Garrison, Nicole L.; Guyer, Craig; Rodríguez, Juanita; Bond, Jason E.

doi:10.1016/j.ympev.2016.01.016

Cited by 10 publications

(11 citation statements)

References 48 publications

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“…Our SDMs suggested that in the period between the LIG and LGM, suitable habitat Wyeomyia smithii, initially dispersed from the Gulf Coast northward along the East Coast, and subsequently moved southward into the southern Appalachians (Merz et al, 2013). Similarly, the red salamander, Pseudotriton ruber, persisted in the Coastal Plain in the early Pliocene, and then expanded its range toward Appalachian upland habitat as cooling trends started in the early Pleistocene (Folt, Garrison, Guyer, Rodriguez, & Bond, 2016 LGM is plausible owing to localized warm areas in close proximity to glaciers (Bennett & Provan, 2008;Jackson et al, 2000;Magni et al, 2005;McLachlan et al, 2005;Rowe, Heske, Brown, & Paige, 2004;Williams et al, 2002).…”

Section: Climate Change As a Driver Of Distributional Shifts And Gementioning

confidence: 80%

“…Our inferences about the long‐term population history of R. flavipes are not dissimilar from reconstructions of glacial‐interglacial colonization routes followed by many plant and animal species in the eastern U.S. For example, the pitcher‐plant mosquito, Wyeomyia smithii , initially dispersed from the Gulf Coast northward along the East Coast, and subsequently moved southward into the southern Appalachians (Merz et al, ). Similarly, the red salamander, Pseudotriton ruber , persisted in the Coastal Plain in the early Pliocene, and then expanded its range toward Appalachian upland habitat as cooling trends started in the early Pleistocene (Folt, Garrison, Guyer, Rodriguez, & Bond, ). Thus, despite different life history traits, at least a few forest‐dependent organisms may have responded similarly to climatic fluctuations in the past.…”

Section: Discussionmentioning

confidence: 99%

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The role of glacial‐interglacial climate change in shaping the genetic structure of eastern subterranean termites in the southern Appalachian Mountains, USA

Hyseni

Garrick

2019

Ecology and Evolution

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The eastern subterranean termite, Reticulitermes flavipes , currently inhabits previously glaciated regions of the northeastern U.S., as well as the unglaciated southern Appalachian Mountains and surrounding areas. We hypothesized that Pleistocene climatic fluctuations have influenced the distribution of R. flavipes , and thus the evolutionary history of the species. We estimated contemporary and historical geographic distributions of R. flavipes by constructing Species Distribution Models (SDM). We also inferred the evolutionary and demographic history of the species using mitochondrial (cytochrome oxidase I and II) and nuclear (endo‐beta‐1,4‐glucanase) DNA sequence data. To do this, genetic populations were delineated using Bayesian spatial‐genetic clustering, competing hypotheses about population divergence were assessed using approximate Bayesian computation (ABC), and changes in population size were estimated using Bayesian skyline plots. SDMs identified areas in the north with suitable habitat during the transition from the Last Interglacial to the Last Glacial Maximum, as well as an expanding distribution from the mid‐Holocene to the present. Genetic analyses identified three geographically cohesive populations, corresponding with northern, central, and southern portions of the study region. Based on ABC analyses, divergence between the Northern and Southern populations was the oldest, estimated to have occurred 64.80 thousand years ago (kya), which corresponds with the timing of available habitat in the north. The Central and Northern populations diverged in the mid‐Holocene, 8.63 kya, after which the Central population continued to expand. Accordingly, phylogeographic patterns of R. flavipes in the southern Appalachians appear to have been strongly influenced by glacial‐interglacial climate change. OPEN RESEARCH BADGES This article has been awarded Open Materials, Open Data Badges. All materials and data are publicly accessible via the Open Science Framework at https://doi.org/10.5061/dryad.5hr7f31 .

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Section: Climate Change As a Driver Of Distributional Shifts And Gementioning

confidence: 80%

Section: Discussionmentioning

confidence: 99%

The role of glacial‐interglacial climate change in shaping the genetic structure of eastern subterranean termites in the southern Appalachian Mountains, USA

Hyseni

Garrick

2019

Ecology and Evolution

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“…Given these and other limitations, a customary practice in phylogenetic studies is to use both mitochondrial and nuclear loci and to describe phylogenetic patterns inferred from these two components of the genome separately (e.g., [24,31–33]). This practice can help identify situations for which phylogenetic hypotheses generated from mtDNA (1) are incongruent with hypotheses from the nuclear genome and that (2) might be erroneously assumed to accurately depict the species tree.…”

Section: Methodsmentioning

confidence: 99%

Phylogenetic, population genetic, and morphological analyses reveal evidence for one species of Eastern Indigo Snake (Drymarchon couperi)

Folt

Bauder

Spear

et al. 2018

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30Accurate species delimitation and description are necessary to guide effective conservation 31 management of imperiled species. The Eastern Indigo Snake (Drymarchon couperi) is a large 32 species in North America that is federally-protected as Threatened under the Endangered Species 33 Act. Recently, two associated studies hypothesized that Drymarchon couperi is two species. 34 Here, we use diverse approaches to test the two-species hypothesis for D. couperi. Our analyses 35 reveal that (1) phylogenetic reconstruction in previous studies was based entirely on variance of 36 mitochondrial DNA sequence data, (2) microsatellite data demonstrate significant population 37 admixture and nuclear gene flow between mitochondrial lineages, and (3) morphological 38 analyses recover a single diagnosable species. Our results are inconsistent with the two-species 39 hypothesis, thus we reject it and formally place Drymarchon kolpobasileus into synonymy with 40 D. couperi. We suggest inconsistent patterns between mitochondrial and nuclear DNA may be 41 driven by high dispersal of males relative to females. We caution against species delimitation 42 exercises when one or few loci are used without evaluation of contemporary gene flow, 43 particularly species with strong sex-biased dispersal (e.g., squamates) and/or when results have 44 implications for ongoing conservation efforts. 45 46 65 Mississippi, Alabama, and the Florida panhandle [13]. 66 Current conservation management plans for D. couperi were developed under the 67 hypothesis that D. couperi represents a single species. However, this hypothesis was recently 68 challenged by Krysko et al. [15], who used DNA sequence analyses to describe two genetic 69 lineages of D. couperi -an Atlantic lineage, including populations in southeastern Georgia and 70 eastern peninsular Florida, and a Gulf lineage of populations in western and southern peninsular 71Florida and the Florida panhandle. This phylogeographic study was followed by a second paper 72 [16] that analyzed morphological variation between the Atlantic and Gulf lineages and provided 73 4 an official description of the Gulf lineage as a purported novel species, the Gulf Coast Indigo 74 Snake (Drymarchon kolpobasileus). 75 Given the conservation status of D. couperi (sensu lato), these results have potentially 76 important consequences for the conservation of Eastern Indigo Snakes. First, division of D. 77 couperi (sensu lato) into two smaller-ranged species results in two species with substantially 78 smaller population sizes that are, therefore, at greater risk of extinction (sensu [2]; e.g., [17]). 79 Second, conservation and recovery of two rare species requires more time and funds than one, 80 and both resources are in short supply. Finally, as noted by Krysko et al. [15], active 81 conservation management plans for D. couperi (sensu lato) include population repatriation 82 projects in Alabama and the Florida panhandle, where populations attributed to the Gulf lineage 83 presumably were...

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“…Similarly, the red salamander, Pseudotriton ruber, persisted in the Coastal Plain in the early Pliocene, and then expanded its range toward Appalachian upland habitat as cooling trends started in the early Pleistocene (Folt et al 2016). Thus, despite different life history traits, at least a few forest-dependent organisms may have responded similarly to climatic fluctuations in the past.…”

Section: Climate Change As a Driver Of Distributional Shifts And Genementioning

confidence: 99%

The Role of Glacial-Interglacial Climate Change in Shaping the Genetic Structure of Eastern Subterranean Termites in the Southern Appalachian Mountains, USA

Hyseni

Garrick

2019

Preprint

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The eastern subterranean termite, Reticulitermes flavipes, currently inhabits previously glaciated regions of the northeastern U.S., as well as the unglaciated southern Appalachian Mountains and surrounding areas. We hypothesized that Pleistocene climatic fluctuations have influenced the distribution of R. flavipes, and thus the evolutionary history of the species. We estimated contemporary and historical geographic distributions of R. flavipes by constructing Species Distribution Models (SDM). We also inferred the evolutionary and demographic history of the species using mitochondrial (cytochrome oxidase I and II) and nuclear (endo-beta-1,4-glucanase) DNA sequence data. To do this, genetic populations were delineated using Bayesian spatial genetic clustering, competing hypotheses about population divergence were assessed using approximate Bayesian computation (ABC), and changes in population size were estimated using Bayesian skyline plots. SDMs identified areas in the north with suitable habitat during the transition from the Last Interglacial to the Last Glacial Maximum, as well as an expanding distribution from the mid-Holocene to the present. Genetic analyses identified three geographically cohesive populations, corresponding with northern, central, and southern portions of the study region. Based on ABC analyses, divergence between the Northern and Southern populations was the oldest, estimated to have occurred 64.80 thousand years ago (kya), which corresponds with the timing of available habitat in the north. The Central and Northern populations diverged in the mid-Holocene, 8.63 kya, after which the Central population continued to expand. Accordingly, phylogeographic patterns of R. flavipes in the southern Appalachians appear to have been strongly influenced by glacial-interglacial climate change.

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Phylogeography and evolution of the Red Salamander (Pseudotriton ruber)

Cited by 10 publications

References 48 publications

The role of glacial‐interglacial climate change in shaping the genetic structure of eastern subterranean termites in the southern Appalachian Mountains, USA

The role of glacial‐interglacial climate change in shaping the genetic structure of eastern subterranean termites in the southern Appalachian Mountains, USA

Phylogenetic, population genetic, and morphological analyses reveal evidence for one species of Eastern Indigo Snake (Drymarchon couperi)

The Role of Glacial-Interglacial Climate Change in Shaping the Genetic Structure of Eastern Subterranean Termites in the Southern Appalachian Mountains, USA

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