Only males care about their environment: sex-biased dispersal in the asp viper (<i>Vipera aspis</i>)

Zwahlen, Valérie; Nanni-Geser, Silvia; Kaiser, Laura; Golay, Joaquim; Dubey, Sylvain; Ursenbacher, Sylvain

doi:10.1093/biolinnean/blaa177

Cited by 7 publications

(9 citation statements)

References 61 publications

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“…mucrosquamatus snakes exhibit female‐biased dispersal. This result differs from previous studies on sex‐biased dispersal in snakes (e.g., Stegonotus cucullatus , Drymarchon couperi , Thermophis baileyi , Rhinoplocephalus nigrescens , Aipysurus laevis , Coronella austriaca , and Vipera aspis ) (Dubey et al, 2008 ; Folt et al, 2019 ; Hofmann et al, 2012 ; Keogh et al, 2007 ; Lukoschek et al, 2008 ; Pernetta et al, 2011 ; Zwahlen et al, 2021 ). However, most indices representing sex‐biased dispersal did not differ significantly, which may be the result of incomplete sampling.…”

Section: Discussioncontrasting

confidence: 94%

“…Based on our total dataset, females had higher F is , H s , and vAIc values, but lower F st , r, and mAIc values than males (Tables 4 and 5), suggesting that P. mucrosquamatus snakes exhibit female-biased dispersal. This result differs from previous studies on sex-biased dispersal in snakes (e.g., Stegonotus cucullatus, Drymarchon couperi, Thermophis baileyi, Rhinoplocephalus nigrescens, Aipysurus laevis, Coronella austriaca, and Vipera aspis) (Dubey et al, 2008;Folt et al, 2019;Hofmann et al, 2012;Keogh et al, 2007;Lukoschek et al, 2008;Pernetta et al, 2011;Zwahlen et al, 2021).…”

Section: Sex-biased Dispersalcontrasting

confidence: 99%

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Genetic diversity and sex‐biased dispersal in the brown spotted pitviper (Protobothrops mucrosquamatus): Evidence from microsatellite markers

Liu

et al. 2022

Ecology and Evolution

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Dispersal plays a vital role in the geographical distribution, population genetic structure, quantity dynamics, and evolution of a species. Sex‐biased dispersal is common among vertebrates and many studies have documented a tendency toward male‐biased dispersal in mammals and female‐biased dispersal in birds. However, dispersal patterns in reptiles remain poorly understood. In this study, we explored the genetic diversity and dispersal patterns of the widely distributed Asian pitviper Protobothrops mucrosquamatus . In total, 16 polymorphic microsatellite loci were screened in 150 snakes (48 males, 44 females, 58 samples without sex information) covering most of their distribution. Microsatellite analysis revealed high genetic diversity in P . mucrosquamatus . Bayesian clustering of population assignment identified two major clusters for all populations, somewhat inconsistent with the mitochondrial DNA phylogeny of P . mucrosquamatus reported in previous research. Analyses based on 92 sex‐determined and 37 samples of P . mucrosquamatus from three small sites in Sichuan, China (Mingshan, Yibin, and Zizhong) consistently suggested female‐biased dispersal in P . mucrosquamatus , which is the first example of this pattern in snakes. The female‐biased dispersal patterns in P . mucrosquamatus may be explained by local resource competition.

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Section: Discussioncontrasting

confidence: 94%

Section: Sex-biased Dispersalcontrasting

confidence: 99%

Genetic diversity and sex‐biased dispersal in the brown spotted pitviper (Protobothrops mucrosquamatus): Evidence from microsatellite markers

Liu

et al. 2022

Ecology and Evolution

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“…There has been less generalization about potential causes and direction of sex‐biased dispersal in non‐avian reptiles despite a plethora of studies investigating and documenting its existence. All of the studies testing for sex‐biased dispersal found male‐biased dispersal (snakes: Dubey et al, 2008 ; Folt et al, 2019 ; Francois et al, 2021 ; Hofmann et al, 2012 ; Keogh et al, 2007 ; Rivera et al, 2006 ; Zhong et al, 2017 ; Zwahlen et al, 2021 ; lizards: Dubey & Shine, 2010 ; Johansson et al, 2008 ; Olsson & Shine, 2003 ; Stow et al, 2001 ; crocodiles: Tucker et al, 1998 ; turtles: Casale et al, 2002 ; Chaloupka & Limpus, 2002 ; FitzSimmons et al, 1997 ; Lee et al, 2007 ; Moore et al, 2020 ; Paquette et al, 2010 ; Sheridan et al, 2010 ) with the exception of one species of lizard (Chapple & Keogh, 2005 ). Our understanding of which sex is more likely to disperse during sex‐biased dispersal in birds and mammals can provide insight into the causation underlying the general pattern of male‐biased dispersal in non‐avian reptiles.…”

Section: Introductionmentioning

confidence: 99%

(Not) far from home: No sex bias in dispersal, but limited genetic patch size, in an endangered species, the Spotted Turtle (Clemmys guttata)

Liebgold

Dickey

Lamb

et al. 2023

Ecology and Evolution

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Sex‐biased dispersal is common in many animals, with male‐biased dispersal often found in studies of mammals and reptiles, including interpretations of spatial genetic structure, ostensibly as a result of male–male competition and a lack of male parental care. Few studies of sex‐biased dispersal have been conducted in turtles, but a handful of studies, in saltwater turtles and in terrestrial turtles, have detected male‐biased dispersal as expected. We tested for sex‐biased dispersal in the endangered freshwater turtle, the spotted turtle ( Clemmys guttata ) by investigating fine‐scale genetic spatial structure of males and females. We found significant spatial genetic structure in both sexes, but the patterns mimicked each other. Both males and females typically had higher than expected relatedness at distances <25 km, and in many distance classes greater than 25 km, less than expected relatedness. Similar patterns were apparent whether we used only loci in Hardy–Weinberg equilibrium ( n = 7) or also included loci with potential null alleles ( n = 5). We conclude that, contrary to expectations, sex‐biased dispersal is not occurring in this species, possibly related to the reverse sexual dimorphism in this species, with females having brighter colors. We did, however, detect significant spatial genetic structure in males and females, separate and combined, showing philopatry within a genetic patch size of <25 km in C. guttata , which is concerning for an endangered species whose populations are often separated by distances greater than the genetic patch size.

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“…These situations can result in populations where the original mtDNA remains in place but occurs in a nuclear genetic background that has been massively swamped by the invading species (as recently proposed for Iberian hares by Seixas et al, 2018). Studies of sex‐biased dispersal in Viperidae are rare but Clark et al (2008, Crotalus horridus ), Zwahlen et al (2021, Vipera aspis ) and François et al (2021, V . berus ) reported male‐biased dispersal.…”

Section: Discussionmentioning

confidence: 99%

Conflicting relationships of Vipera walser inferred from nuclear genes sequences and mitochondrial DNA

Doniol-Valcroze

Ursenbacher

Mebert³

et al. 2021

J Zool Syst Evol Res

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The description of Vipera walser from the Northern Italian Alps as a new species (Ghielmi et al., 2016, Journal of Zoological Systematics and Evolutionary Research, 54, 161) was one of the most unexpected surprises of European herpetology in the 21st century. In mitochondrial (mt) DNA, it is closely related to a group of vipers only present in the Caucasus region and Northeastern Anatolia. However, its morphology is similar to the V. berus populations that inhabit nearby mountains in the Swiss‐Italian Alps, which raises questions on its relationships and status. We thus sequenced five nuclear (nu) genes to determine the position of V. walser relative to V. berus and to the Caucasian/Northeastern Anatolian vipers in nuDNA. We also reanalyzed five previously sequenced mtDNA fragments. NuDNA markers recovered V. walser as closely related to Italian populations of V. berus and not to the Caucasian/Anatolian species, thus contradicting the mtDNA phylogeny. We checked that each of the five mtDNA fragments independently amplified by Ghielmi et al. (2016, Journal of Zoological Systematics and Evolutionary Research, 54, 161) produced individual gene trees compatible with the concatenated mtDNA phylogeny, thus excluding the hypothesis that NUMTs sequencing generated the mtDNA relationships reported by Ghielmi et al. (2016, Journal of Zoological Systematics and Evolutionary Research, 54, 161). Given the low level of nuclear differentiation between V. walser and the Italian population of V. berus, we argue that ancient admixture between V. berus and the ancestral population of V. walser is the most likely explanation for this case of cyto‐nuclear discordance and we discuss the consequences of these results on the systematic status of V. walser.

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Only males care about their environment: sex-biased dispersal in the asp viper (Vipera aspis)

Cited by 7 publications

References 61 publications

Genetic diversity and sex‐biased dispersal in the brown spotted pitviper (Protobothrops mucrosquamatus): Evidence from microsatellite markers

Genetic diversity and sex‐biased dispersal in the brown spotted pitviper (Protobothrops mucrosquamatus): Evidence from microsatellite markers

(Not) far from home: No sex bias in dispersal, but limited genetic patch size, in an endangered species, the Spotted Turtle (Clemmys guttata)

Conflicting relationships of Vipera walser inferred from nuclear genes sequences and mitochondrial DNA

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