Phenology, recurring seasonal life-history events such as animal emergence/migration and plant foliation/flowering, is one of the most fundamental features of environmental adaptation by organisms in nature. While phenology of individual organisms piles up to determine population dynamics, population-level phenological attributes (e.g., timing and duration) and their seasonal shifts (potentially driven by climate change) can have profound effects on species interactions. However, our understanding of the community context of phenological species interactions is still limited to a few tightly interacting species (e.g., the match/mismatch hypothesis).

This symposium aims to explore the emergent property of the diversity of phenology within and among species on landscape scales. We present studies using conceptual, empirical, and/or mathematical approaches to examine (1) how phenological diversity of flowering or emergences of arthropods can synergistically determine temporal features of resource availability for generalist consumers, and (2) what are ecological consequences of collective dynamics of the phenological resources on consumer dynamics, species co-existence/evolution, and ecosystem-linkage dynamics. Throughout the symposium, we will discuss how studying the community context of phenological species interactions will help us better understand impacts of climate changes on community dynamics within and across ecosystems.