Migratory flight imposes oxidative stress in bats
作者机构：UMR 7221 CNRS/MNHN Museum National d'Histoire Naturelle Sorbonne Universites 7 rue Cuvier Paris 75005 France Department of Biology University of Antwerp Universiteitsplein 1 Antwerp 2610 Belgium Department of Evolutionary Ecology Leibniz Institute for Zoo and Wildlife Research Alfred-Kowalke-StraBe 17 Berlin 10315Germany lnstitute of Biology Freie Universitat Berlin Takustr. 6 Berlin 14195 Germany Faculty of Veterinary Medicine Latvia University of Life Sciences and Technologies K. Helmaqa & Jelgava LV 3004 Latvia
出 版 物：《Current Zoology》 (动物学报（英文版）)
年 卷 期：2019年第65卷第2期
页 面：147-153页
核心收录：
学科分类：0710[理学-生物学] 07[理学] 09[农学]
基 金：D.C. was supported by the Alexander-von-Humboldt-Foundation O.L. was supported by the Berlin Funding for Graduates (Elsa-Neumann-Stipendium)
主 题：antioxidants mammals oxidative damage stopover stress
摘 要：Many animal species migrate over long distances, but the physiological challenges of migration are poorly understood. It has recently been suggested that increased molecular oxidative damage might be one important challenge for migratory animals. We tested the hypothesis that autumn migration imposes an oxidative challenge to bats by comparing values of 4 blood-based markers of oxidative status (oxidative damage and both enzymatic and nonenzymatic antioxidants) between Nathusius bats Pipistrellus nathusii that were caught during migration flights with those measured in conspecifics after resting for 18 or 24 h. Experiments were carried out at Pape Ornithological Station in Pape (Latvia) in 2016 and 2017. Our results show that flying bats have a blood oxidative status different from that of resting bats due to higher oxidative damage and different expression of both non enzymatic and enzymatic antioxidants (glutathione peroxidase). The differences in oxidative status markers varied betwee n sampli ng years and were in depende nt from in dividual body con dition or sex. Our work provides evidence that migratory flight might impose acute oxidative stress to bats and that resting helps animals to recover from oxidative damage accrued en route. Our data suggest that migrating bats and birds might share similar strategies of mitigating and recovering from oxidative stress.
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