Concepts

Number of days from autumn snow onset to spring snowmelt, providing temperature stabilization and protection for overwintering organisms

The degree to which individuals in a population exhibit coordinated timing of nesting activity

Climatic index reflecting atmospheric pressure differences between Iceland and Azores

The number of flowering individuals of the same species in the local area during an individual's peak bloom

Graph showing the number of open flowers over time, describing temporal distribution of flower openings with properties like start date, end date, mean date, breadth, and skewness

The number of weeks during a growing season when both pollinators and their floral resources are active and available