Check out my profile on Research Gate and on Google Scholar or explore my full publication list below. Most papers are available online through the public repository at HAL CNRS
2024
Alexis Rutschmann; Constant Perry; Jean-François Le Galliard; Andréaz Dupoué; Olivier Lourdais; Michaël Guillon; George Brusch IV; Julien Cote; Murielle Richard; Jean Clobert; Donald B. Miles
Ecological responses of squamate reptiles to nocturnal warming Journal Article
In: Biological Reviews, vol. 99, no. 2, pp. 598–621, 2024, ISSN: 1469-185X, (_eprint: https://onlinelibrary.wiley.com/doi/pdf/10.1111/brv.13037).
Abstract | Links | BibTeX | Tags: ectotherms, energy-balance model, global warming, minimum temperature, squamates, thermal performance curve
@article{rutschmann_ecological_2024,
title = {Ecological responses of squamate reptiles to nocturnal warming},
author = {Alexis Rutschmann and Constant Perry and Jean-François Le Galliard and Andréaz Dupoué and Olivier Lourdais and Michaël Guillon and George Brusch IV and Julien Cote and Murielle Richard and Jean Clobert and Donald B. Miles},
url = {https://onlinelibrary.wiley.com/doi/abs/10.1111/brv.13037},
doi = {10.1111/brv.13037},
issn = {1469-185X},
year = {2024},
date = {2024-01-01},
urldate = {2024-01-17},
journal = {Biological Reviews},
volume = {99},
number = {2},
pages = {598–621},
abstract = {Nocturnal temperatures are increasing at a pace exceeding diurnal temperatures in most parts of the world. The role of warmer nocturnal temperatures in animal ecology has received scant attention and most studies focus on diurnal or daily descriptors of thermal environments' temporal trends. Yet, available evidence from plant and insect studies suggests that organisms can exhibit contrasting physiological responses to diurnal and nocturnal warming. Limiting studies to diurnal trends can thus result in incomplete and misleading interpretations of the ability of species to cope with global warming. Although they are expected to be impacted by warmer nocturnal temperatures, insufficient data are available regarding the night-time ecology of vertebrate ectotherms. Here, we illustrate the complex effects of nocturnal warming on squamate reptiles, a keystone group of vertebrate ectotherms. Our review includes discussion of diurnal and nocturnal ectotherms, but we mainly focus on diurnal species for which nocturnal warming affects a period dedicated to physiological recovery, and thus may perturb activity patterns and energy balance. We first summarise the physical consequences of nocturnal warming on habitats used by squamate reptiles. Second, we describe how such changes can alter the energy balance of diurnal species. We illustrate this with empirical data from the asp viper (Vipera aspis) and common wall lizard (Podarcis muralis), two diurnal species found throughout western Europe. Third, we make use of a mechanistic approach based on an energy-balance model to draw general conclusions about the effects of nocturnal temperatures. Fourth, we examine how warmer nights may affect squamates over their lifetime, with potential consequences on individual fitness and population dynamics. We review quantitative evidence for such lifetime effects using recent data derived from a range of studies on the European common lizard (Zootoca vivipara). Finally, we consider the broader eco-evolutionary ramifications of nocturnal warming and highlight several research questions that require future attention. Our work emphasises the importance of considering the joint influence of diurnal and nocturnal warming on the responses of vertebrate ectotherms to climate warming.},
note = {_eprint: https://onlinelibrary.wiley.com/doi/pdf/10.1111/brv.13037},
keywords = {ectotherms, energy-balance model, global warming, minimum temperature, squamates, thermal performance curve},
pubstate = {published},
tppubtype = {article}
}
2021
Alexis Rutschmann; Andréaz Dupoué; Donald B. Miles; Megía R. Palma; C Lauden; Murielle Richard; Arnaud Badiane; David Rozen‐Rechels; Mathieu Brevet; Pauline Blaimont; Sandrine Meylan; Jean Clobert; Jean-François Le Galliard
Intense nocturnal warming alters growth strategies, coloration, and parasite load in a diurnal lizard Journal Article
In: Journal of Animal Ecology, vol. 90, no. 8, pp. 1864-1877, 2021, ISSN: 1365-2656.
Abstract | Links | BibTeX | Tags: ectotherms, energetic balance, nocturnal temperatures, oxidative stress
@article{rutschmann_intense_2021,
title = {Intense nocturnal warming alters growth strategies, coloration, and parasite load in a diurnal lizard},
author = {Alexis Rutschmann and Andréaz Dupoué and Donald B. Miles and Megía R. Palma and C Lauden and Murielle Richard and Arnaud Badiane and David Rozen‐Rechels and Mathieu Brevet and Pauline Blaimont and Sandrine Meylan and Jean Clobert and Jean-François Le Galliard},
url = {https://besjournals.onlinelibrary.wiley.com/doi/abs/10.1111/1365-2656.13502},
doi = {https://doi.org/10.1111/1365-2656.13502},
issn = {1365-2656},
year = {2021},
date = {2021-01-01},
urldate = {2021-01-01},
journal = {Journal of Animal Ecology},
volume = {90},
number = {8},
pages = {1864-1877},
abstract = {1. In the past decades, nocturnal temperatures have been playing a disproportionate role in the global warming of the planet. Yet, they remain a neglected factor in studies assessing the impact of global warming on natural populations. 2. Here, we question whether an intense augmentation of nocturnal temperatures is beneficial or deleterious to ectotherms. Physiological performance is influenced by thermal conditions in ectotherms and an increase in temperature by only 2°C is sufficient to induce a disproportionate increase in metabolic expenditure. Warmer nights may expand ectotherms’ species thermal niche and open new opportunities for prolonged activities and improve foraging efficiency. However, increased activity may also have deleterious effects on energy balance if exposure to warmer nights reduces resting periods and elevates resting metabolic rate. 3. We assessed whether warmer nights affected an individual’s growth, dorsal skin colouration, thermoregulation behaviour, oxidative stress status and parasite load by exposing yearling common lizards (Zootoca vivipara) from four populations to either ambient or high nocturnal temperatures for approximately five weeks. 4. Warmer nocturnal temperatures increased the prevalence of ectoparasitic infestation and altered allocation of resources toward structural growth rather than storage. We found no change in markers for oxidative stress. The thermal treatment did not influence thermal preferences, but influenced dorsal skin brightness and luminance, in line with a predicted acclimation response in colder environments to enhance heat gain from solar radiation. 5. Altogether, our results highlight the importance of considering nocturnal warming as an independent factor affecting ectotherms life-history in the context of global climate change.},
keywords = {ectotherms, energetic balance, nocturnal temperatures, oxidative stress},
pubstate = {published},
tppubtype = {article}
}
J. -F. Le Galliard; Chloé Chabaud; Denis Otávio Vieira de Andrade; Franc cois Brischoux; Miguel A. Carretero; Andréaz Dupoué; Rodrigo S. B. Gavira; Olivier Lourdais; Marco Sannolo; Tom J. M. Van Dooren
A worldwide and annotated database of evaporative water loss rates in squamate reptiles Journal Article
In: Global Ecology and Biogeography, vol. 30, no. 10, pp. 1938–1950, 2021, ISSN: 1466-8238, (_eprint: https://onlinelibrary.wiley.com/doi/pdf/10.1111/geb.13355).
Abstract | Links | BibTeX | Tags: ectotherms, evaporative water loss, functional traits, homeostasis, hydroregulation, lizards, macrophysiology, snakes, water loss
@article{le_galliard_worldwide_2021,
title = {A worldwide and annotated database of evaporative water loss rates in squamate reptiles},
author = {J. -F. Le Galliard and Chloé Chabaud and Denis Otávio Vieira de Andrade and Franc cois Brischoux and Miguel A. Carretero and Andréaz Dupoué and Rodrigo S. B. Gavira and Olivier Lourdais and Marco Sannolo and Tom J. M. Van Dooren},
url = {https://onlinelibrary.wiley.com/doi/abs/10.1111/geb.13355},
doi = {10.1111/geb.13355},
issn = {1466-8238},
year = {2021},
date = {2021-01-01},
urldate = {2021-01-01},
journal = {Global Ecology and Biogeography},
volume = {30},
number = {10},
pages = {1938--1950},
abstract = {Motivation The understanding of physiological adaptations, of evolutionary radiations and of ecological responses to global change urges for global, comprehensive databases of the functional traits of extant organisms. The ability to maintain an adequate water balance is a critical functional property influencing the resilience of animal species to climate variation. In terrestrial or semi-terrestrial organisms, total water loss includes a significant contribution from evaporative water loss (EWL). The analysis of geographic and phylogenetic variation in EWL rates must however account for differences in methods and potential confounding factors, which influence standard measures of whole-organism water loss. We compiled the global and standardized SquamEWL database of total, respiratory and cutaneous EWL for 325 species and subspecies of squamate reptiles (793 samples and 2,536 estimates) from across the globe. An extensive set of companion data and annotations associated with the EWL measurements of potential value for future investigation, including metabolic rate data, is provided. We present preliminary descriptive statistics for the compiled data, discuss gaps and biases, and identify promising avenues to update, expand and explore this database. Main types of variables contained Standard water loss rates, geographic data, metabolic rates. Spatial location Global. Time period Data were obtained from extant species and were collected between 1945 and 2020. Major taxa Reptilia, Squamata including lizards, snakes and amphisbaenians. Level of measurements Individual samples of animals from the same species, locality, age class and sex category. Software format csv.},
note = {_eprint: https://onlinelibrary.wiley.com/doi/pdf/10.1111/geb.13355},
keywords = {ectotherms, evaporative water loss, functional traits, homeostasis, hydroregulation, lizards, macrophysiology, snakes, water loss},
pubstate = {published},
tppubtype = {article}
}
2020
Andréaz Dupoué; Pauline Blaimont; David Rozen‐Rechels; Murielle Richard; Sandrine Meylan; Jean Clobert; Donald B Miles; Rémi Martin; Beatriz Decencière; Simon Agostini; Jean‐François Le Galliard
Water availability and temperature induce changes in oxidative status during pregnancy in a viviparous lizard Journal Article
In: Functional Ecology, vol. 34, no. 2, pp. 475-485, 2020, ISSN: 0269-8463, 1365-2435.
Links | BibTeX | Tags: antioxidant capacity, ectotherms, oxidative stress, performance, temperature
@article{dupoue_water_2020,
title = {Water availability and temperature induce changes in oxidative status during pregnancy in a viviparous lizard},
author = {Andréaz Dupoué and Pauline Blaimont and David Rozen‐Rechels and Murielle Richard and Sandrine Meylan and Jean Clobert and Donald B Miles and Rémi Martin and Beatriz Decencière and Simon Agostini and Jean‐François Le Galliard},
editor = {David Costantini},
url = {https://onlinelibrary.wiley.com/doi/abs/10.1111/1365-2435.13481},
doi = {10.1111/1365-2435.13481},
issn = {0269-8463, 1365-2435},
year = {2020},
date = {2020-02-01},
urldate = {2020-02-11},
journal = {Functional Ecology},
volume = {34},
number = {2},
pages = {475-485},
keywords = {antioxidant capacity, ectotherms, oxidative stress, performance, temperature},
pubstate = {published},
tppubtype = {article}
}