Water deprivation compromises maternal physiology and reproductive success in a cold and wet adapted snake Vipera berus .

Autor:	Dezetter M; Sorbonne University, CNRS, IRD, INRA, Institut d'Écologie et des Sciences de l'Environnement (iEES Paris), 4 Place Jussieu, 75252 Paris Cedex 5, France.; Centre d'Études Biologiques de Chizé CNRS, UMR 7372, 79360 Villiers en Bois, France., Le Galliard JF; Sorbonne University, CNRS, IRD, INRA, Institut d'Écologie et des Sciences de l'Environnement (iEES Paris), 4 Place Jussieu, 75252 Paris Cedex 5, France.; Ecole Normale Supérieure, PSL University, Département de Biologie, CNRS, UMS 3194, Centre de Recherche en Écologie Expérimentale et Prédictive (CEREEP-Ecotron IleDeFrance), 11 Chemin de Busseau, 77140 Saint-Pierre lès-Nemours, France., Guiller G; Le Grand Momesson, 44130 Bouvron, France., Guillon M; Centre d'Études Biologiques de Chizé CNRS, UMR 7372, 79360 Villiers en Bois, France., Leroux-Coyau M; Sorbonne University, CNRS, IRD, INRA, Institut d'Écologie et des Sciences de l'Environnement (iEES Paris), 4 Place Jussieu, 75252 Paris Cedex 5, France., Meylan S; Sorbonne University, CNRS, IRD, INRA, Institut d'Écologie et des Sciences de l'Environnement (iEES Paris), 4 Place Jussieu, 75252 Paris Cedex 5, France.; INSPE de Paris, Université Sorbonne, 10 rue Molitor, 75016 Paris, France., Brischoux F; Centre d'Études Biologiques de Chizé CNRS, UMR 7372, 79360 Villiers en Bois, France., Angelier F; Centre d'Études Biologiques de Chizé CNRS, UMR 7372, 79360 Villiers en Bois, France., Lourdais O; Centre d'Études Biologiques de Chizé CNRS, UMR 7372, 79360 Villiers en Bois, France.; School of Life Sciences, Arizona State University, Tempe, AZ 85287-4501, USA.
Jazyk:	angličtina
Zdroj:	Conservation physiology [Conserv Physiol] 2021 Sep 03; Vol. 9 (1), pp. coab071. Date of Electronic Publication: 2021 Sep 03 (Print Publication: 2021).
DOI:	10.1093/conphys/coab071
Abstrakt:	Droughts are becoming more intense and frequent with climate change. These extreme weather events can lead to mass mortality and reproduction failure, and therefore cause population declines. Understanding how the reproductive physiology of organisms is affected by water shortages will help clarify whether females can adjust their reproductive strategy to dry conditions or may fail to reproduce and survive. In this study, we investigated the consequences of a short period of water deprivation (2 weeks) during early pregnancy on the physiology and behaviour of a cold- and wet-adapted ectotherm ( Vipera berus ). We also examined water allocation to developing embryos and embryonic survival. Water-deprived females exhibited significant dehydration, physiological stress and loss of muscle mass. These effects of water deprivation on water balance and muscle loss were correlated with the number of developing embryos. While water-deprived females maintained water transfer to embryos at the expense of their own maintenance, water deprivation also led to embryonic mortality. Overall, water deprivation amplifies the reproductive costs of water allocation to support embryonic development. The deleterious impacts of water deprivation on female current reproductive performance and on potential survival and future reproduction could lead to severe population declines in this species. (© The Author(s) 2021. Published by Oxford University Press and the Society for Experimental Biology.)
Databáze:	MEDLINE
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