From the Field to the Lab: Physiological and Behavioural Consequences of Environmental Salinity in a Coastal Frog

• DOI: 10.3389/fphys.2022.919165
• Publication Date: 2022-06-02T08:36:32Z
• Authors: Léa Lorrain-Soligon; Coraline Bichet; Frédéric Robin; François Brischoux
• Keywords: 0106 biological sciences; Physiology; Pelophylax sp.; salinization; locomotor performances; 15. Life on land; 01 natural sciences; coastal ecosystems; 13. Climate action; immunological changes; [SDE]Environmental Sciences; QP1-981; 14. Life underwater; osmolality

Environmental salinization is recognized as a global threat affecting biodiversity, particularly in coastal ecosystems (affected by sea level rise and increased frequency severity of storms), the consequent osmoregulatory challenges can negatively affect wildlife. In order to assess whether species respond changes environmental salinity, it remains essential investigate consequences exposure salinity an environmentally-relevant context. this study, we assessed frogs ( Pelophylax sp., N = 156) both field experimentally, using comprehensive combination markers physiology, behaviour ecology. Exposure affected physiological parameters (osmolality, monocytes eosinophils counts), well body condition locomotor performance, influenced size- sex-specific habitat selection. Further, demonstrated controlled experiment that short-term strongly (salt influxes, water effluxes, immunity-related stress markers) performance. Most these effects were transient (water salt fluxes, performance) once optimal conditions resumed (i.e., freshwater). Taken together, our results highlight need ultimately individual fitness population persistence across taxa.