The Contribution of Phenotypic Plasticity to Adaptation in Lacerta Vivipara

Lorenzon, Pauline; Clobert, Jean; Massot, M.

doi:10.1554/0014-3820(2001)055[0392:tcoppt]2.0.co;2

Cited by 51 publications

(81 citation statements)

References 55 publications

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“…We also confirmed previously demonstrated effects such as the increase of viable clutch size with female length, as well as the influence of year conditions on the reproductive success of this ectotherm species (e.g. Sorci & Clobert 1999;Lorenzon et al 2001). Interestingly, we found that strategy influenced the probability of late reproductive failures, i.e.…”

Section: Discussionsupporting

confidence: 92%

Condition dependence of reproductive strategy and the benefits of polyandry in a viviparous lizard

et al. 2006

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Species in which males do not contribute to reproduction beyond the provision of sperm offer good opportunities to study the potential genetic benefits that females can obtain from polyandry. Here, we report the results of a study examining the relationships between polyandry and components of female fitness in the common lizard (Lacerta vivipara). We found that polyandrous females produce larger clutches than monandrous females. Polyandrous females also lose fewer offspring during the later stages of gestation and at birth, but we did not find any relationship between polyandry and physical characteristics of viable neonates. Our results were consistent with the predictions of the intrinsic male quality hypothesis, while inbreeding avoidance and genetic incompatibility avoidance might also explain some part of the variation observed in clutch size. Moreover, the benefits of polyandry appeared to depend on female characteristics, as revealed by an interaction between reproductive strategy and female length on reproductive success. Thus, all females did not benefit equally from mating with multiple males, which could explain why polyandry and monandry coexist.

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Section: Discussionsupporting

confidence: 92%

Condition dependence of reproductive strategy and the benefits of polyandry in a viviparous lizard

et al. 2006

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“…in predictive models (Huey et al, 2012;McCluney et al, 2012;McKechnie and Wolf, 2010). Although our results suggest that reproductively active individuals may be particularly impacted by dehydration, as demonstrated for other vertebrates (Hirschhorn et al, 1969;Rittenhouse et al, 2009), parental effects may influence offspring physiology and behavior (Lorenzon et al, 1999(Lorenzon et al, , 2001Marquis et al, 2008). Future work could specifically investigate the potential role for parental effects in mediating the impacts of adverse hydric conditions on offspring fitness.…”

Section: Discussionmentioning

confidence: 62%

Water deprivation increases maternal corticosterone levels and enhances offspring growth in the snake Vipera aspis

Dupoué

Angelier

Brischoux

et al. 2016

Journal of Experimental Biology

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Circulating glucocorticoid (GC) levels may increase as a result of reproductive effort or in response to unpredictable events. However, GC secretion can vary with the availability of vital trophic resources such as energy. While water represents another critical resource, the impact of water deprivation on GC secretion during reproduction has not yet been thoroughly investigated. Here, we examined the effects of water deprivation on plasma corticosterone (CORT) concentrations of female aspic vipers (Vipera aspis), and determined the impacts of water deprivation on offspring traits. We exposed both pregnant and non-reproductive females to a 20-day water deprivation and compared their pre-and post-deprivation CORT levels with those of control females. At the end of the treatment, only water-deprived pregnant females showed a significant increase in CORT levels. In pregnant females, changes in baseline CORT level were correlated with changes in female hydration state. Changes in baseline CORT levels were also negatively influenced by maternal reproductive effort in pregnant control females, while such a relationship was not apparent in pregnant water-deprived females. Finally, we found that offspring from water-deprived females had higher growth rates than offspring from control females. Offspring growth was also positively correlated with changes in both maternal osmolality and baseline CORT levels. Together, our results suggest that dehydration increases maternal CORT levels, which may subsequently influence offspring development. Further long-term field studies are therefore required to assess whether there is an adaptive significance of this response.

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“…В ряде работ показано, что скорость роста пресмыкающихся обусловлена количеством и доступностью пищи, флуктуацией погодных ус-ловий и влажностью среды (Khodadoost et al, 1987;Adolph, Porter, 1996;Madsen, Shine, 2000;Lorenzo et al, 2001). В Кузнецком Алатау высот-ная поясность определяет резкое различие эко-логических условий.…”

Section: Z Vivipara Z Viviparaunclassified

Age, Body Sizes and Growth of Zootoca Vivipara (Sauria: Lacertidae) From Its Mountain Populations in the Kuznetsk Alatau (Southeast of the Western Siberia)

Kuranova¹,

Yartsev²,

Absalyamova³

2016

CSH

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The Contribution of Phenotypic Plasticity to Adaptation in Lacerta Vivipara

Cited by 51 publications

References 55 publications

Condition dependence of reproductive strategy and the benefits of polyandry in a viviparous lizard

Condition dependence of reproductive strategy and the benefits of polyandry in a viviparous lizard

Water deprivation increases maternal corticosterone levels and enhances offspring growth in the snake Vipera aspis

Age, Body Sizes and Growth of Zootoca Vivipara (Sauria: Lacertidae) From Its Mountain Populations in the Kuznetsk Alatau (Southeast of the Western Siberia)

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