Articles, books and book chapters

@article{bodineau_microhabitat_2024c,

title = {Microhabitat humidity rather than food availability drives thermo-hydroregulation responses to drought in a lizard},

author = {Théo Bodineau and Chloé Chabaud and Beatriz Decencière and Simon Agostini and Olivier Lourdais and Sandrine Meylan and Jean-François Le Galliard},

url = {https://onlinelibrary.wiley.com/doi/abs/10.1111/oik.10535},

doi = {10.1111/oik.10535},

issn = {1600-0706},

year  = {2024},

date = {2024-01-01},

urldate = {2024-05-13},

journal = {Oikos},

volume = {2024},

number = {6},

pages = {e10535},

abstract = {The regulation of energy, water and thermal balance involves integrated processes that should drive ecological responses of ectotherms to climate change. Functional tradeoffs between thermoregulation and hydroregulation are exacerbated during hot or dry spells, but how microhabitat hydric properties and trophic resource availability influence these tradeoffs remains unknown. Here, we investigated the effects of microhabitat humidity and food availability on thermo-hydroregulation strategies in the ground-dwelling common lizard Zootoca vivipara during a simulated hot and dry spell event. We exposed lizards to a five-day long acute water restriction in hot conditions in the laboratory and manipulated hydric quality of the retreat site (wet or dry shelter) as well as food availability (ad libitum food or food deprivation). Water restriction and food deprivation caused physiological responses such as muscle catabolism and mobilization of caudal energy reserves. Lizards also developed behavioural strategies to conserve water or energy via decreased thermoregulation effort, higher shelter use and increased eye closure behaviours through time. These physiological and behavioural changes were importantly buffered by the presence of a wet shelter but not by food availability. A wet retreat site reduced the behavioural conflicts between thermoregulation and hydroregulation, allowed lizards to maintain a better condition and reduced physiological dehydration. Instead, food intake did not play a major role in the regulation of hydration state and increased behavioural conflicts between thermoregulation and hydroregulation. A better consideration of thermo-hydroregulation behaviours and microhabitat hydric quality is required to address ectotherm responses to future climate change.},

note = {_eprint: https://onlinelibrary.wiley.com/doi/pdf/10.1111/oik.10535},

keywords = {behaviour, food, microhabitat, shelter, thermo-hydroregulation, tradeoff, water},

pubstate = {published},

tppubtype = {article}

}

@article{remy_food_2013,

title = {Food distribution influences social organization and population growth in a small rodent},

author = {Alice Rémy and Morten Odden and Murielle Richard and Marius Tyr Stene and Jean-François Le Galliard and Harry P Andreassen},

url = {https://academic.oup.com/beheco/article/24/4/832/220344},

doi = {https://doi.org/10.1093/beheco/art029},

issn = {1045-2249},

year  = {2013},

date = {2013-01-01},

journal = {Behavioral Ecology},

volume = {24},

number = {4},

pages = {832--841},

abstract = {In polygynous mammals, the spatial clumping and predictability of food should influence spacing behavior of females whose reproductive success depends to a great extent on food availability, which would in turn affect male spacing behavior. Changes in the social and mating systems can then influence individual fitness and population dynamics. To test these hypotheses, we manipulated food distribution and predictability in enclosed populations of bank voles (Myodes glareolus) and monitored spacing behavior, survival, and reproduction of adult females and males over 3 months. Food was either spread out (dispersed treatment), spatially clumped and highly predictable (clumped treatment) or spatially clumped but less predictable (variable treatment). We found that females in the clumped treatment were more aggregated and had more overlapping home ranges compared with females in the dispersed and variable treatments. Male spacing behavior followed the same patterns. Despite different social organizations between treatments, no differences in home range size and mating systems were found in females and males. In addition, we found that females in the clumped food treatment had a higher probability of successfully producing weaned offspring, likely due to lower infanticide rates. This led to higher population growth compared with the other 2 treatments. These results suggest a tight relationship between the spatiotemporal distribution of food, social organization, and population dynamics.},

keywords = {density, food, kinship, mammals, space use},

pubstate = {published},

tppubtype = {article}

}

@article{hoset_demographic_2009,

title = {Demographic responses to a mild winter in enclosed vole populations},

author = {Katrine Hoset and Jean-François Le Galliard and Gry Gundersen},

url = {http:ws.isiknowledge.comcpsøpenurlservice?url_ver=Z39.88-2004&rft_id=info:ut000264328900007},

doi = {DOI: 10.1007/s10144-008-0130-4},

issn = {1438-3896},

year  = {2009},

date = {2009-01-01},

journal = {Population Ecology},

volume = {51},

number = {2},

pages = {279--288},

abstract = {Mild winter weather causing snow to melt and ice to accumulate on the ground has been proposed to cause the decreased survival of individuals, and less pronounced cyclicity, of small rodent populations in Fennoscandia. However, detailed data linking ice accumulation to decreased winter survival is lacking. We live-trapped and monitored with passive integrated transponders enclosed populations of root voles (Microtus oeconomus) exposed to different amounts of ice accumulation through a mild winter. We studied how social behaviour and survival responded to snow melt and ice accumulation. Voles avoided ground ice by moving their home ranges, thus increasing home range overlap in enclosed populations experiencing more extensive ice cover. Winter survival was not affected by the amount of ice accumulation, and was only slightly reduced during ice formation in early winter. The lowest survival rates were found at the onset of snow melt in early spring. These results suggest that ice accumulation does not cause lower survival during mild winters, probably because plastic social behaviour enables root voles to reduce the negative effects of varying winter weather on survival. The mechanisms for lower survival during mild winters may operate during spring and be related to spring floods or increased susceptibility to predators.},

keywords = {behaviour, climate change, food, Microtus oeconomus, small mammals, small mammals, small mammals, small mammals, space use, survival},

pubstate = {published},

tppubtype = {article}

}