Warming climate advances breeding and improves synchrony of food demand and food availability in a boreal passerine

Global climate change affects ecosystems via several trophic levels. We investigated changes in the timing of breeding in the willow tit ( Poecile montanus ) and timing of its caterpillar food resource in relation to warming springs in a boreal forest. We used generalized linear mixed effect models to study the importance of synchrony between the timing of breeding in willow tits and the caterpillar food availability on the breeding success,...