Article Dans Une Revue Ecotoxicology and Environmental Safety Année : 2025

Mercury contamination in the European green toad Bufotes viridis in Vienna, Austria.

Résumé

Mercury (Hg) contamination affects all ecosystems worldwide. Its deleterious effects on wildlife and humans encompass a diversity of impacts from individual to population levels. In the present study, we quantified Hg concentration across various tissues (blood, brain, muscle, and toe) of green toads (Bufotes viridis) and investigated the use of toe clips as a proxy of Hg concentration in internal tissues, including the brain. Our results show distinct patterns of Hg contamination across tissues, with the highest Hg concentration in the blood with 1.496 ± 0.772 µg.g−1 dry weight (dw), followed by muscle tissue with 0.687 ± 0.376 µg.g−1 dw, brain tissue with 0.542 ± 0.319 µg.g−1 dw, and toes with 0.229 ± 0.143 µg.g−1 dw. A strong relationship has been found between toe and brain Hg concentrations (R2 = 0.857, p < 0.001). These results emphasize the potential of toe clipping as a reliable, non-lethal method for predicting brain Hg concentrations in the green toad. Further, results open the possibility of assessing the potential association between Hg contamination and the cognitive performance of amphibians.

Fichier principal
Vignette du fichier
Lemaire et al 2025 EES.pdf (3.59 Mo) Télécharger le fichier
Origine Publication financée par une institution
Licence

Dates et versions

hal-05007642 , version 1 (26-03-2025)

Licence

Identifiants

Citer

Jérémy Lemaire, Rosanna Mangione, Magdalena Spießberger, Stephan Burgstaller, Martina Staufer, et al.. Mercury contamination in the European green toad Bufotes viridis in Vienna, Austria.. Ecotoxicology and Environmental Safety, 2025, 292, pp.117957. ⟨10.1016/j.ecoenv.2025.117957⟩. ⟨hal-05007642⟩
69 Consultations
125 Téléchargements

Altmetric

Partager

  • More