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Metabolic constraints on the evolution of life history strategies

The range of life history strategies open for animals is ultimately set by the amount of energy an individual can expend on survival and reproduction. This level of energy expenditure depends on the difference between the rate of energy acquisition from the environment and the cost of running the basal activities of the body (BMR). The relation between maximal sustainable daily energy expenditure (DEE) and BMR as well as costs and benefits of increasing or decreasing DEE and BMR will potentially shape components of the life history such as start of egg laying and investment in clutch size, incubation, chick feeding and moulting as well as over winter survival.

Hungry nestling

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Nesting bird

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Jan-Åke Nilsson
Evolutionary ecology

Telephone: +46 46-222 45 69
E-mail: Jan-Ake [dot] Nilsson [at] biol [dot] lu [dot] se