Intraspecific variation in clutch size and maternal investment in pueriparous and larviparous Salamandra salamandra females

Velo‐Antón, Guillermo; Santos, Xavier; Sanmartín‐Villar, Iago; Cordero‐Rivera, Adolfo; Buckley, David

doi:10.1007/s10682-014-9720-0

Cited by 30 publications

(46 citation statements)

References 39 publications

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“…Salamandra salamandra is characterized by a larviparous reproductive mode (along most of its distribution range) in which an aquatic larval stage (up to ca. 90 larvae; Velo-Ant on, Santos, Sanmart ın-Villar, Cordero-Rivera, & Buckley, 2015) is followed by metamorphosis into a terrestrial adult.…”

Section: Salamandra Salamandra Populations Likely Inhabited the Nw Ibmentioning

confidence: 99%

“…Salamandra salamandra is characterized by a larviparous reproductive mode (along most of its distribution range) in which an aquatic larval stage (up to ca. 90 larvae; Velo‐Antón, Santos, Sanmartín‐Villar, Cordero‐Rivera, & Buckley, ) is followed by metamorphosis into a terrestrial adult. This confers an almost complete independence from water bodies, because females move to ponds or rivers only to deliver the larvae.…”

Section: Introductionmentioning

confidence: 99%

“…Furthermore, S. salamandra evolved to viviparity (live‐bearing) in these islands, delivering ca. 1–35 fully metamorphosed terrestrial juveniles (Velo‐Antón et al., , ), further increasing their independence from water. Conversely, L. boscai females are oviparous, laying ca.…”

Section: Introductionmentioning

confidence: 99%

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Role of colonization history and species‐specific traits on contemporary genetic variation of two salamander species in a Holocene island‐mainland system

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Sequeira

Buckley

et al. 2018

Journal of Biogeography

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Aim Investigate the role of colonization history and life history traits on contemporary patterns of genetic variation in two salamander species in a Holocene island‐mainland system. Location Rías Baixas, north‐western Spain. Methods We analysed mitochondrial and species‐specific nuclear markers (eight microsatellite markers) in 16 populations of Salamandra salamandra and Lissotriton boscai. Contemporary gene flow patterns between mainland and island populations were evaluated by migration analyses, whereas approximate Bayesian computation (ABC) was used to assess colonization history of insular populations of both species. Results Land bridge populations of both species exhibited reduced genetic diversity and increased genetic structure compared to mainland populations. ABC analysis showed that insular populations of both species were established by vicariance rather than by colonization via dispersal. We did not find evidence for contemporary gene flow, though the L. boscai insular population of Sálvora showed genetic admixture with mainland populations. Main conclusions This study supports the role of genetic drift in driving contemporary genetic variation of small and isolated populations. Other interplaying factors (e.g. island size, bathymetry) seemed to influence genetic variation, highlighting the importance of integrative studies to better understand the evolutionary dynamics of land bridge populations of amphibians.

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Section: Salamandra Salamandra Populations Likely Inhabited the Nw Ibmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Role of colonization history and species‐specific traits on contemporary genetic variation of two salamander species in a Holocene island‐mainland system

Lourenço

Sequeira

Buckley

et al. 2018

Journal of Biogeography

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“…This remarkable reproductive shift entails greater independence from surface water as the aquatic larval stage is removed (Velo‐Antón et al . ), allowing S. salamandra to cope with the harsh conditions of an urban environment. We sampled 12 populations within Oviedo and four outside the city to fulfil three main objectives: (i) to estimate and compare patterns of genetic diversity and genetic structure in urban and rural populations; (ii) to estimate historical and contemporary N e of urban populations; and (iii) to quantify the contributions of population‐specific traits, including demographic history, time since isolation and patch attributes to genetic differentiation and diversity.…”

Section: Introductionmentioning

confidence: 99%

Trapped within the city: integrating demography, time since isolation and population‐specific traits to assess the genetic effects of urbanization

et al. 2017

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Urbanization is a severe form of habitat fragmentation that can cause many species to be locally extirpated and many others to become trapped and isolated within an urban matrix. The role of drift in reducing genetic diversity and increasing genetic differentiation is well recognized in urban populations. However, explicit incorporation and analysis of the demographic and temporal factors promoting drift in urban environments are poorly studied. Here, we genotyped 15 microsatellites in 320 fire salamanders from the historical city of Oviedo (Est. 8th century) to assess the effects of time since isolation, demographic history (historical effective population size; N ) and patch size on genetic diversity, population structure and contemporary N . Our results indicate that urban populations of fire salamanders are highly differentiated, most likely due to the recent N declines, as calculated in coalescence analyses, concomitant with the urban development of Oviedo. However, urbanization only caused a small loss of genetic diversity. Regression modelling showed that patch size was positively associated with contemporary N , while we found only moderate support for the effects of demographic history when excluding populations with unresolved history. This highlights the interplay between different factors in determining current genetic diversity and structure. Overall, the results of our study on urban populations of fire salamanders provide some of the very first insights into the mechanisms affecting changes in genetic diversity and population differentiation via drift in urban environments, a crucial subject in a world where increasing urbanization is forecasted.

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“…It exhibits high colour and morphological polymorphism resulting in the identification of several subspecies (Thiesmeier & Grossenbacher 2004;Beukema et al 2016), and it shows remarkable variation in reproductive mode (Buckley et al 2007;Velo-Ant on et al 2015).…”

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confidence: 99%

The complete mitochondrial genome of Salamandra salamandra (Amphibia: Urodela: Salamandridae)

Mulder

Lourenço

Carneiro

et al. 2016

Mitochondrial DNA Part B

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The complete mitochondrial genome of Salamandra salamandra was reconstructed using bycatch sequences from an RNAseq library generated from muscle tissue. This study shows the potential of using data originally produced for transcriptome assembly to additionally generate complete mitochondrial genomes. The resulting mitogenome was circular, consisted of 16,331 bp and followed the standard vertebrate gene order. Subsequent analysis of the current mitochondrial genome sequence for the species as listed on GenBank highlighted a species misidentification.

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Intraspecific variation in clutch size and maternal investment in pueriparous and larviparous Salamandra salamandra females

Cited by 30 publications

References 39 publications

Role of colonization history and species‐specific traits on contemporary genetic variation of two salamander species in a Holocene island‐mainland system

Role of colonization history and species‐specific traits on contemporary genetic variation of two salamander species in a Holocene island‐mainland system

Trapped within the city: integrating demography, time since isolation and population‐specific traits to assess the genetic effects of urbanization

The complete mitochondrial genome of Salamandra salamandra (Amphibia: Urodela: Salamandridae)

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