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Trade-offs among locomotor performance, reproduction, and immunity in lizards [Functional Ecology]

Keywords : endurance, exercise, Growth, life history

par Frédéric Magné - publié le

1.Life history theory predicts that investment of acquired energetic resources to a particular trait denies those same resources from being allocated to a different trait, resulting in life-history trade-offs. Dynamic, whole-organism performance traits, including locomotor capacity, are key to fitness and fit within this framework. Such performance traits are typically energetically expensive, but are seldom integrated into life-history studies.
2.We manipulated diet and allocation of resources to performance, via exercise training, to examine trade-offs among endurance capacity, growth, immune function, and current reproductive investment. Captive green anole lizards were assigned to one of four treatment combinations across two factors (diet restricted or not and endurance trained or not) over the course of nine weeks.(...)

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