TY  - JOUR
A1  - Mazza, Valeria
A1  - Dammhahn, Melanie
A1  - Eccard, Jana
A1  - Palme, Rupert
A1  - Zaccaroni, Marco
A1  - Jacob, Jens
T1  - Coping with style: individual differences in responses to environmental variation
JF  - Behavioral ecology and sociobiology
N2  - Between-individual differences in coping with stress encompass neurophysiological, cognitive and behavioural reactions. The coping style model proposes two alternative response patterns to challenges that integrate these types of reactions. The “proactive strategy” combines a general fight-or-flight response and inflexibility in learning with a relatively low HPA (hypothalamic–pituitary–adrenal) response. The “reactive strategy” includes risk aversion, flexibility in learning and an enhanced HPA response. Although numerous studies have investigated the possible covariance of cognitive, behavioural and physiological responses, findings are still mixed. In the present study, we tested the predictions of the coping style model in an unselected population of bank voles (Myodes glareolus) (N = 70). We measured the voles’ boldness, activity, speed and flexibility in learning and faecal corticosterone metabolite levels under three conditions (holding in indoor cages, in outdoor enclosures and during open field test). Individuals were moderately consistent in their HPA response across situations. Proactive voles had significantly lower corticosterone levels than reactive conspecifics in indoor and outdoor conditions. However, we could not find any co-variation between cognitive and behavioural traits and corticosterone levels in the open field test. Our results partially support the original coping style model but suggest a more complex relationship between cognitive, behavioural and endocrine responses than was initially proposed.
KW  - Coping styles
KW  - Faecal glucocorticoid metabolites
KW  - Learning
KW  - Stress
KW  - Personality
KW  - Rodent
Y1  - 2019
U6  - https://doi.org/10.1007/s00265-019-2760-2
SN  - 0340-5443
SN  - 1432-0762
VL  - 73
IS  - 10
PB  - Springer
CY  - New York
ER  - 
TY  - JOUR
A1  - Montiglio, Pierre-Olivier
A1  - Dammhahn, Melanie
A1  - Messier, Gabrielle Dubuc
A1  - Reale, Denis
T1  - The pace-of-life syndrome revisited
BT  - the role of ecological conditions and natural history on the slow-fast continuum
JF  - Behavioral ecology and sociobiology
N2  - The pace-of-life syndrome (i.e., POLS) hypothesis posits that behavioral and physiological traits mediate the trade-off between current and future reproduction. This hypothesis predicts that life history, behavioral, and physiological traits will covary under clearly defined conditions. Empirical tests are equivocal and suggest that the conditions necessary for the POLS to emerge are not always met. We nuance and expand the POLS hypothesis to consider alternative relationships among behavior, physiology, and life history. These relationships will vary with the nature of predation risk, the challenges posed by resource acquisition, and the energy management strategies of organisms. We also discuss how the plastic response of behavior, physiology, and life history to changes in ecological conditions and variation in resource acquisition among individuals determine our ability to detect a fast-slow pace of life in the first place or associations among these traits. Future empirical studies will provide most insights on the coevolution among behavior, physiology, and life history by investigating these traits both at the genetic and phenotypic levels in varying types of predation regimes and levels of resource abundance.
KW  - Behavior
KW  - Immunity
KW  - Life history strategies
KW  - Metabolism
KW  - Personality
KW  - Trait interaction
Y1  - 2018
U6  - https://doi.org/10.1007/s00265-018-2526-2
SN  - 0340-5443
SN  - 1432-0762
VL  - 72
IS  - 7
PB  - Springer
CY  - New York
ER  -