Deleterious effects of thermal and water stresses on life history and physiology: a case study on woodlouse
Résumé
We tested independently the influences of increasing temperature and decreasing mois- ture on life history and physiological traits in the arthropod Armadillidium vulgare. Both increasing temperature and decreasing moisture led reproductive success to decrease. While the density of immune cells decreased and the β-galactosidase activity increased with increasing temperature and decreasing moisture, which suggests a negative im- pact of these stressors on individual performance, increased temperature and decreased moisture affected differently the other biomarkers conjuring different underlying mech- anisms depending on the stress applied. Our findings demonstrate overall a negative impact of high temperature and low moisture on woodlouse welfare. Changing temper- ature or moisture had slightly different effects, illustrating the need to test further the respective role of each of these key components of climate change on organisms to predict more reliably the future of our ecosystems.
Domaines
Sciences de l'environnement
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