Genetic Differentiation among Long-Toed Salamander (<i>Ambystoma macrodactylum</i>) Populations

Tallmon, David A.; Funk, W. Chris; Dunlap, William W.; Allendorf, Fred W.

doi:10.1643/0045-8511(2000)2000[0027:gdalts]2.0.co;2

Cited by 49 publications

(65 citation statements)

References 7 publications

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“…This life history trait is perhaps crucial for the Chinese wood frog to maintain a low to moderate population differentiation with the presence of major mountain ridges. Mountain ridges have significant impact on pond breeder population structure, which is well established by numerous studies [6][7][8][9][10][11]. Nevertheless, whether the same impact occurs on stream breeders is still an open question.…”

Section: Discussionmentioning

confidence: 99%

“…Sampling sites were selected from both sides of the Tsinling Mountains and the Daba Mountains (Figure 1). Five sites (1)(2)(3)(4)(5) are located at the northern side of the Tsinling; four sites (6)(7)(8)(9) are located at the southern side of the Tsingling, which is also the northern side of the Daba; three sites (10)(11)(12) are located at the southern side of the Daba. Of the 12 sites, 11 and 12 are located at the periphery of the species' distribution, while the others are relatively central.…”

Section: )mentioning

confidence: 99%

“…Genetic differentiation among amphibian populations appears to be relatively high for populations separated by mountain ridges [6][7][8][9][10][11]. Using microsatellite DNA loci, Funk et al's (2005) study of the Columbian spotted frog (Rana luteiventris) highlighted the impact of mountain ridges on amphibian population structure [10].…”

Section: Introductionmentioning

confidence: 99%

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Big mountains but small barriers: Population genetic structure of the Chinese wood frog (Rana chensinensis) in the Tsinling and Daba Mountain region of northern China

Zhan

2009

BMC Genet

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Background: Amphibians in general are poor dispersers and highly philopatric, and landscape features often have important impacts on their population genetic structure and dispersal patterns. Numerous studies have suggested that genetic differentiation among amphibian populations are particularly pronounced for populations separated by mountain ridges. The Tsinling Mountain range of northern China is a major mountain chain that forms the boundary between the Oriental and Palearctic zoogeographic realms. We studied the population structure of the Chinese wood frog (Rana chensinensis) to test whether the Tsinling Mountains and the nearby Daba Mountains impose major barriers to gene flow.

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Section: Discussionmentioning

confidence: 99%

Section: )mentioning

confidence: 99%

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Big mountains but small barriers: Population genetic structure of the Chinese wood frog (Rana chensinensis) in the Tsinling and Daba Mountain region of northern China

Zhan

2009

BMC Genet

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“…Amphibians are often described as highly site-philopatric and demonstrate poor dispersal capabilities, even in natural environments [79][80][81][82][83]. This is commonly explained by a dependence on moist habitats and slow terrestrial movement capabilities [84,85].…”

Section: Low Dispersal Ratesmentioning

confidence: 99%

Global Amphibian Declines, Loss of Genetic Diversity and Fitness: A Review

Allentoft

O’Brien²

2010

Diversity

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Abstract:It is well established that a decrease in genetic variation can lead to reduced fitness and lack of adaptability to a changing environment. Amphibians are declining on a global scale, and we present a four-point argument as to why this taxonomic group seems especially prone to such genetic processes. We elaborate on the extent of recent fragmentation of amphibian gene pools and we propose the term dissociated populations to describe the residual population structure. To put their well-documented loss of genetic diversity into context, we provide an overview of 34 studies (covering 17 amphibian species) that address a link between genetic variation and >20 different fitness traits in amphibians. Although not all results are unequivocal, clear genetic-fitness-correlations (GFCs) are documented in the majority of the published investigations. In light of the threats faced by amphibians, it is of particular concern that the negative effects of various pollutants, pathogens and increased UV-B radiation are magnified in individuals with little genetic variability. Indeed, ongoing loss of genetic variation might be an important underlying factor in global amphibian declines.

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“…Em anfíbios, a maioria dos trabalhos com marcadores microssatélite tem por objetivo o acesso à estrutura populacional (SHAFFER et al, 2000;TALLMON et al, 2000;ZEISSET;BEEBEE, 2003;BURNS et al, 2004;LESBARRÈRES et al, 2005).…”

Section: ________ Introdução 13unclassified

Avaliação da organização da variabilidade genética em populações de anfíbios de hábitats antropizados por meio marcadores microssatélites

Arruda¹

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Genetic Differentiation among Long-Toed Salamander (Ambystoma macrodactylum) Populations

Cited by 49 publications

References 7 publications

Big mountains but small barriers: Population genetic structure of the Chinese wood frog (Rana chensinensis) in the Tsinling and Daba Mountain region of northern China

Big mountains but small barriers: Population genetic structure of the Chinese wood frog (Rana chensinensis) in the Tsinling and Daba Mountain region of northern China

Global Amphibian Declines, Loss of Genetic Diversity and Fitness: A Review

Avaliação da organização da variabilidade genética em populações de anfíbios de hábitats antropizados por meio marcadores microssatélites

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