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Exposure to radiation is a natural part of our environment. Yet, due to nuclear accidents such as at Chernobyl, some organisms are exposed to significantly elevated dose rates. Our understanding of the effects of radiation in the environment is limited, confounded by substantial interspecific differences in radio‐sensitivity and conflicting findings.
Here we study radiation impacts on bumblebees...
Evolutionary ecologists frequently argue that parasite defence is costly because resources must be reallocated from other life‐history traits to fuel the immune response. However, this hypothesis is rarely explicitly tested. An alternative possibility is that immune responses impair an organism's ability to acquire the resources it needs to support metabolism. Here, we disentangle these opposing hypotheses...
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