Articles, books and book chapters

@article{josserand_chronic_2020,

title = {Chronic elevation of glucorticoids late in life generates long lasting changes in physiological state without a life history switch},

author = {Rémy Josserand and Claudy Haussy and Simon Agostini and Beatriz Decencière and Jean-François Le Galliard and Sandrine Meylan},

url = {http://www.sciencedirect.com/science/article/pii/S0016648019300929},

doi = {10.1016/j.ygcen.2019.113288},

issn = {0016-6480},

year  = {2020},

date = {2020-01-01},

urldate = {2019-09-26},

journal = {General and Comparative Endocrinology},

volume = {285},

pages = {113288},

abstract = {Chronic stressors have profound impacts on phenotypes and life history strategies on the short term, but delayed effects of stress experienced late in life remain poorly investigated in wild populations. Here, we used a combined laboratory and field experiment to test if chronic stress late in life has immediate and delayed effects on physiological and demographic traits in the common lizard, Zootoca vivipara. We increased plasma corticosterone levels in adults and yearlings during three weeks of the post-reproductive season. We quantified immediate responses in the laboratory, delayed intra-generational effects in field enclosures one month and one year later during the next reproductive season, and delayed inter-generational effects in the first generation of offspring. Our phenotypic assays included metabolism, immune capacities, lipid metabolism and oxidative stress. Relative to placebos, lizards treated with corticosterone had higher body condition and lower oxidative damages but an increased skin swelling response directly after the manipulation. Delayed responses in field enclosures were of three types. First, we found catch-up growth for body mass such the placebos had similar body conditions one month after the laboratory manipulation. Second, we found persistent differences in oxidative damages during one month but not one year later. Third, during the next reproductive season, corticosterone-treated females had higher levels of plasma triglycerides, whereas corticosterone-treated individuals had a higher skin swelling response. We found no delayed inter-generational effects on demographic traits of offspring. Our study demonstrates the potential for long-lasting physiological consequences of chronic corticosterone enhancement despite no obvious changes in life history.},

keywords = {immunity, maternal effect, metabolism, oxidative stress, stress, triglycerides},

pubstate = {published},

tppubtype = {article}

}

@article{marquis_intergenerational_2008,

title = {Intergenerational effects of climate generate cohort variation in lizard reproductive performance},

author = {Olivier Marquis and Manuel Massot and Jean-François Le Galliard},

url = {https://esajournals.onlinelibrary.wiley.com/doi/10.1890/07-1211.1},

doi = {https://doi.org/10.1890/07-1211.1},

year  = {2008},

date = {2008-01-01},

journal = {Ecology},

volume = {89},

number = {9},

pages = {2575--2583},

abstract = {An evaluation of the link between climate and population dynamics requires 

understanding of climate effects both within and across generations. In ectothermic 

vertebrates, demographic responses to climate changes should crucially depend on balancing 

needs for heat and water. Here, we studied how temperature and rainfall regimes experienced 

before and during adulthood influenced reproductive performances (litter size, offspring size, 

and survival) in a natural population of the live-bearing common lizard, Lacerta vivipara, 

monitored continuously from 1989 to 2004. Rainfall regime, but not temperature, had both 

immediate and delayed effects on these reproductive performances. Rainfall during the first 

month of life was positively correlated with juvenile survival. Females experiencing more 

rainfall during gestation produced smaller neonates that showed greater survival when 

controlling for the positive effect of body size on survival. Furthermore, females that 

experienced heavier rainfall when in utero produced fewer but longer neonates during 

adulthood. These demographic effects of rainfall on adult reproductive traits may come from 

maternal effects of climate conditions andtextbackslashor from delayed effects of rainfall on the 

environment experienced early in life. Irrespective of the precise mechanism, however, this 

study provides evidence of intergenerational climate effects in natural populations of an 

ectothermic vertebrate.},

keywords = {climate change, intergenerational effect, life history, maternal effect, phenotypic plasticity, Zootoca vivipara},

pubstate = {published},

tppubtype = {article}

}

@article{le_galliard_ontogenic_2006-1,

title = {Ontogenic sources of variation in sexual size dimorphism in a viviparous lizard},

author = {Jean-François Le Galliard and Manuel Massot and Meta M Landys and Sandrine Meylan and Jean Clobert},

year  = {2006},

date = {2006-01-01},

journal = {Journal of Evolutionary Biology},

volume = {19},

number = {3},

pages = {690--704},

keywords = {body size, maternal effect, phenotypic plasticity, sexual size dimorphism, viviparity, Zootoca vivipara},

pubstate = {published},

tppubtype = {article}

}