Allozyme and Mitochondrial Dna Variation in the Tailed Frog (Anura: Ascaphus): The Influence of Geography and Gene Flow

Nielson, Marilyn; Lohman, Kirk; Daugherty, Charles H.; Allendorf, Fred W.; Knudsen, Kathy L.; Sullivan, Jack; Ellis, David; Firth, Bruce T.; Belan, Ingrid

doi:10.1655/0018-0831(2006)62[235:aamdvi]2.0.co;2

Cited by 23 publications

(38 citation statements)

References 49 publications

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“…Arid intervening habitat has persisted through the Holocene. The separation of Ascaphus into two species (truei and montanus) was confirmed by allozyme and further cytb analyses, which also indicated recent gene flow among Coastal range populations of A. truei and a discrete Olympic mountains clade of this species (Nielson et al, 2006). …”

Section: North Temperate Zone: North America and Europementioning

confidence: 65%

Amphibian phylogeography: a model for understanding historical aspects of species distributions

2008

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Phylogeographic analysis has become a major tool for investigating historical aspects of biogeography and population genetic structure. Anuran amphibians are particularly informative subjects for phylogeographic research on account of their global distribution, high degree of population genetic structure and ease of sampling. Studies on all the world's inhabited continents have demonstrated the nature and locations of refugia, including the Gulf Coast in North America and the Mediterranean peninsulas in Europe during the Pleistocene glaciations; the importance of vicariance events such as the uplift of the Andes in shaping modern distributions; and colonization routes in temperate zones during postglacial climatic amelioration. Features identified as important to amphibian biogeography, notably mountain ranges, large rivers such as the Amazon and climatic fluctuations, are common to many other taxa. New analytical methods based on coalescent, Bayesian and likelihood approaches permit more rigorous hypothesis testing than has hitherto been possible and offer the prospect of even more detailed insights into species and population history in future work.

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Section: North Temperate Zone: North America and Europementioning

confidence: 65%

Amphibian phylogeography: a model for understanding historical aspects of species distributions

2008

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“…Although these two clades were well-supported, mean sequence divergence between them was only 0.74%, suggesting relatively recent divergence. These clades formed north-south phylogeographic breaks (albeit shallow breaks) as seen in many other species in the Cascade Range (Miller et al, 2005(Miller et al, , 2006aNielson et al, 2006;Steele and Storfer, 2006), although exact locations of these breaks vary. Interestingly, the Columbia River does not act as a barrier in R. pretiosa.…”

Section: Phylogeographic Breaksmentioning

confidence: 88%

“…The effect of the Columbia River as a barrier appears to vary among species. In some, it corresponds with a genetic break (Monsen and Blouin, 2003), but in many it does not (Funk et al, 2008;Nielson et al, 2006;Recuero et al, 2006).…”

Section: Phylogeographic Breaksmentioning

confidence: 99%

Range-wide phylogeographic analysis of the spotted frog complex (Rana luteiventris and Rana pretiosa) in northwestern North America

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Draheim

et al. 2008

Molecular Phylogenetics and Evolution

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“…Because of the degree of isolation between these disjunct regions, conspecific populations from coastal and inland habitats have received much attention [33,34], with studies demonstrating that the system harbours substantial cryptic diversity (e.g. [35], reviewed in [36]). …”

Section: Materials and Methods (A) Two Disjunct Biomes As Models (I) Tmentioning

confidence: 99%

Identifying cryptic diversity with predictive phylogeography

et al. 2016

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Identifying units of biological diversity is a major goal of organismal biology. An increasing literature has focused on the importance of cryptic diversity, defined as the presence of deeply diverged lineages within a single species. While most discoveries of cryptic lineages proceed on a taxon-by-taxon basis, rapid assessments of biodiversity are needed to inform conservation policy and decision-making. Here, we introduce a predictive framework for phylogeography that allows rapidly identifying cryptic diversity. Our approach proceeds by collecting environmental, taxonomic and genetic data from codistributed taxa with known phylogeographic histories. We define these taxa as a reference set, and categorize them as either harbouring or lacking cryptic diversity. We then build a random forest classifier that allows us to predict which other taxa endemic to the same biome are likely to contain cryptic diversity. We apply this framework to data from two sets of disjunct ecosystems known to harbour taxa with cryptic diversity: the mesic temperate forests of the Pacific Northwest of North America and the arid lands of Southwestern North America. The predictive approach presented here is accurate, with prediction accuracies placed between 65% and 98.79% depending of the ecosystem. This seems to indicate that our method can be successfully used to address ecosystemlevel questions about cryptic diversity. Further, our application for the prediction of the cryptic/non-cryptic nature of unknown species is easily applicable and provides results that agree with recent discoveries from those systems. Our results demonstrate that the transition of phylogeography from a descriptive to a predictive discipline is possible and effective.

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Allozyme and Mitochondrial Dna Variation in the Tailed Frog (Anura: Ascaphus): The Influence of Geography and Gene Flow

Cited by 23 publications

References 49 publications

Amphibian phylogeography: a model for understanding historical aspects of species distributions

Amphibian phylogeography: a model for understanding historical aspects of species distributions

Range-wide phylogeographic analysis of the spotted frog complex (Rana luteiventris and Rana pretiosa) in northwestern North America

Identifying cryptic diversity with predictive phylogeography

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