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Not just fuel: energy stores are correlated with immune function and oxidative damage in a long-distance migrant

Current Zoology 2020年第1期66卷 21-28页

作者： Cas EIKENAAR Arne HEGEMANN Florian PACKMOR Iris KLEUDGEN Caroline ISAKSSON Institute of Avian Research 26386 WilhelmshavenGermany Department of Biology Lund UniversityLundSE-22362Sweden School of Natural Sciences Bangor UniversityDeiniol RoadBangorLL572DGUK

In many animals,catabolic and anabolic periods are temporally *** birds alternate energy expenditure during flight with energy accumulation during *** size of the energy stores at stopover affects the decision to resume migration and thus the temporal organization of *** now provide data suggesting that it is not only the size of the energy stores per se that may influence migration scheduling,but also the physiological consequences of *** two subspecies of the northern wheatear Oenanthe oenanthe,a long-distance migrant,estimated energy stores at a stopover during autumn migration were positively related with both constitutive innate and acquired immune function,and negatively related with oxidative damage to *** other words,migrants'physiological condition was associated with their energetic *** time spent at stopover before sampling may have contributed to this relationship,our results suggest that migrants have to trade-off the depletion of energy stores during flight with incurring physiological *** will affect migrants'decisions when to start and when to terminate a migratory *** physiological costs associated with the depletion of energy stores may also help explaining why migrants often arrive at and depart from stopover sites with larger energy stores than *** propose that studies on the role of energy stores as drivers of the temporal organization of(avian)migration need to consider physiological condition,such as immunological and oxidative states.

关键词： migration oxidative stress eco-immunology immunity fat stores physiology

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