Climate change may lead to phenological mismatches, where the timing of critical events
between interacting species becomes desynchronized, with potential negative …

Nest building is a taxonomically widespread and diverse trait that allows animals to alter
local environments to create optimal conditions for offspring development. However, there is …

Individual animals differ in the way they cope with challenges in their environment,
comparable with variation in human personalities. The proximate basis of variation in …

Timing of reproduction has major fitness consequences, which can only be understood
when the phenology of the food for the offspring is quantified. For insectivorous birds, like …

Populations are shifting their phenology in response to climate change, but these shifts are
often asynchronous among interacting species. Resulting phenological mismatches can …

Large-scale climatic indices such as the North Atlantic Oscillation are associated with
population dynamics, variation in demographic rates and values of phenotypic traits, in …

1. We analysed the effect of prey density and size on the foraging performance of great and
blue tit (Parus major L., P. caeruleus L.) parents, and its consequences for the growth and …

Growth rate is a life-history trait often linked to various fitness components, including
survival, age of first reproduction, and fecundity. Here we present an analysis of growth-rate …

Organisms are expected to balance energy allocation in such a way that fitness is
maximized. While much research has focussed on allocation strategies of reproducing …

We studied the nestling diet and the foraging performance of Great Tits in relation to prey
abundance in the field. Numerous experimental studies present data on foraging decisions …