Articles, books and book chapters

@article{badiane_environmental_2022,

title = {Environmental conditions and male quality traits simultaneously explain variation of multiple colour signals in male lizards},

author = {Arnaud Badiane and Andréaz Dupoué and Pauline Blaimont and Donald B. Miles and Anthony L. Gilbert and Mathieu Leroux-Coyau and Anna Kawamoto and David Rozen-Rechels and Sandrine Meylan and Jean Clobert and Jean-François Le Galliard},

url = {https://onlinelibrary.wiley.com/doi/abs/10.1111/1365-2656.13773},

doi = {10.1111/1365-2656.13773},

issn = {1365-2656},

year  = {2022},

date = {2022-01-01},

urldate = {2022-08-01},

journal = {Journal of Animal Ecology},

volume = {n/a},

number = {n/a},

abstract = {Male lizards often display multiple pigment-based and structural colour signals which may reflect various quality traits (e.g. performance, parasitism), with testosterone (T) often mediating these relationships. Furthermore, environmental conditions can explain colour signal variation by affecting processes such as signal efficacy, thermoregulation, and camouflage. The relationships between colour signals, male quality traits, and environmental factors have often been analysed in isolation, but simultaneous analyses are rare. Thus, the response of multiple colour signals to variation in all these factors in an integrative analysis remains to be investigated. Here, we investigated how multiple colour signals relate to their information content, examined the role of T as a potential mediator of these relationships, and how environmental factors explain colour signal variation. We performed an integrative study to examine the covariation between three colour signals (melanin-based black, carotenoid-based yellow-orange, and structural UV), physiological performance, parasitism, T levels, and environmental factors (microclimate, forest cover) in male common lizards (Zootoca vivipara) from 13 populations. We found that the three colour signals conveyed information on different aspects of male condition, supporting a multiple message hypothesis. T influenced only parasitism, suggesting that T does not directly mediate the relationships between colour signals and their information content. Moreover, colour signals became more saturated in forested habitats, suggesting an adaptation to degraded light conditions, and became generally brighter in mesic conditions, in contradiction with the thermal melanism hypothesis. We show that distinct individual quality traits and environmental factors simultaneously explain variations of multiple colour signals with different production modes. Our study therefore highlights the complexity of colour signal evolution, involving various sets of selective pressures acting at the same time, but in different ways depending on colour production mechanism.},

note = {_eprint: https://onlinelibrary.wiley.com/doi/pdf/10.1111/1365-2656.13773},

keywords = {Animal communication, Coloration, Parasitism, performance, Reptile, Testosterone, Ultraviolet, Zootoca vivipara},

pubstate = {published},

tppubtype = {article}

}

@article{artacho_quantification_2015,

title = {Quantification of correlational selection on thermal physiology, thermoregulatory behavior, and energy metabolism in lizards},

author = {Paulina Artacho and Julia Saravia and Beatriz Decencière Ferrandière and Samuel Perret and Jean-François Le Galliard},

url = {https://onlinelibrary.wiley.com/doi/full/10.1002/ece3.1548},

doi = {https://doi.org/10.1002/ece3.1548},

issn = {2045-7758},

year  = {2015},

date = {2015-01-01},

journal = {Ecology and Evolution},

volume = {5},

number = {17},

pages = {3600--3609},

abstract = {Phenotypic selection is widely accepted as the primary cause of adaptive evolution in natural populations, but selection on complex functional properties linking physiology, behavior, and morphology has been rarely quantified. In ectotherms, correlational selection on thermal physiology, thermoregulatory behavior, and energy metabolism is of special interest because of their potential coadaptation. We quantified phenotypic selection on thermal sensitivity of locomotor performance (sprint speed), thermal preferences, and resting metabolic rate in captive populations of an ectothermic vertebrate, the common lizard, Zootoca vivipara. No correlational selection between thermal sensitivity of performance, thermoregulatory behavior, and energy metabolism was found. A combination of high body mass and resting metabolic rate was positively correlated with survival and negatively correlated with fecundity. Thus, different mechanisms underlie selection on metabolism in lizards with small body mass than in lizards with high body mass. In addition, lizards that selected the near average preferred body temperature grew faster that their congeners. This is one of the few studies that quantifies significant correlational selection on a proxy of energy expenditure and stabilizing selection on thermoregulatory behavior.},

keywords = {metabolism, natural selection, performance, squamate reptiles, thermal coadaptation},

pubstate = {published},

tppubtype = {article}

}

@article{artacho_interindividual_2013,

title = {Interindividual variation in thermal sensitivity of maximal sprint speed, thermal behavior, and resting metabolic rate in a lizard},

author = {Paulina Artacho and Isabelle Jouanneau and Jean-François Le Galliard},

url = {https://www.journals.uchicago.edu/doi/abs/10.1086/671376},

doi = {https://doi.org/10.1086/671376},

issn = {1522-2152},

year  = {2013},

date = {2013-01-01},

journal = {Physiological and Biochemical Zoology},

volume = {86},

number = {4},

pages = {458--469},

abstract = {Studies of the relationship of performance and behavioral traits with environmental factors have tended to neglect interindividual variation even though quantification of this variation is fundamental to understanding how phenotypic traits can evolve. In ectotherms, functional integration of locomotor performance, thermal behavior, and energy metabolism is of special interest because of the potential for coadaptation among these traits. For this reason, we analyzed interindividual variation, covariation, and repeatability of the thermal sensitivity of maximal sprint speed, preferred body temperature, thermal precision, and resting metabolic rate measured in ca. 200 common lizards (Zootoca vivipara) that varied by sex, age, and body size. We found significant interindividual variation in selected body temperatures and in the thermal performance curve of maximal sprint speed for both the intercept (expected trait value at the average temperature) and the slope (measure of thermal sensitivity). Interindividual differences in maximal sprint speed across temperatures, preferred body temperature, and thermal precision were significantly repeatable. A positive relationship existed between preferred body temperature and thermal precision, implying that individuals selecting higher temperatures were more precise. The resting metabolic rate was highly variable but was not related to thermal sensitivity of maximal sprint speed or thermal behavior. Thus, locomotor performance, thermal behavior, and energy metabolism were not directly functionally linked in the common lizard.},

keywords = {lizard, metabolism, performance, thermal sensitivity, Zootoca vivipara},

pubstate = {published},

tppubtype = {article}

}

@article{le_galliard_personality_2013,

title = {Personality and the pace-of-life syndrome: variation and selection on activity, metabolism and locomotor performances},

author = {Jean-François Le Galliard and Mathieu Paquet and Matthieu Cisel and Laeticia Montes-Poloni},

url = {https://besjournals.onlinelibrary.wiley.com/doi/full/10.1111/1365-2435.12017},

doi = {https://doi.org/10.1111/1365-2435.12017},

year  = {2013},

date = {2013-01-01},

journal = {Functional Ecology},

volume = {27},

number = {1},

pages = {136--144},

keywords = {activity, boldness, pace of life, performance, personality, Zootoca vivipara},

pubstate = {published},

tppubtype = {article}

}