The term 'life-history theory'(LHT) is increasingly often invoked in psychology, as a
framework for integrating understanding of psychological traits into a broader evolutionary …

Immunosenescence, the decline in immune defense with age, is an important mortality
source in elderly humans but little is known of immunosenescence in wild animals. We …

The term 'life-history theory'is a familiar label in several disciplines. Life-history theory has its
roots in evolutionary models of the fitness consequences of allocating energy to …

There is a growing interest in social behavior change with age, 1, 2, 3, 4, 5 and the impacts
of sociality on longevity, 6, 7, 8 but current knowledge is broadly limited to primates …

Reproduction in wild animals can divert limited resources away from immune defense,
resulting in increased parasite burdens. A long-standing prediction of life-history theory …

A trade‐off between reproduction and immune function has been suggested to potentially
underpin between‐individual and genetic variation in reproductive strategy, immunity and …

The benefits of dominance may not come without costs, particularly for males. For example,
the “immunocompetence handicap hypothesis” states that males with enhanced mating …

Theory suggests females should optimize resource allocation across reproductive bouts to
maximize lifetime reproduction, balancing current and future reproductive efforts according …

Environmental and biological context play significant roles in modulating physiological
stress responses of individuals in wildlife populations yet are often overlooked when …

Changing environments result in alterations at all levels of biological organization, from
genetics to physiology to demography. The increasing frequency of droughts worldwide is …