Concepts
16 concepts
phenological mismatch
When organisms dependent on synchronized milestones adapt to environmental changes at different rates, causing their reproductive, feeding, and/or migration patterns to become asynchronous
snow cover duration
Number of days from autumn snow onset to spring snowmelt, providing temperature stabilization and protection for overwintering organisms
growing degree days
Temperature accumulation metric calculated using averaging method with base temperature, used to predict insect phenology and plant development
frost damage
Direct damage to plant buds and flowers from freezing temperatures occurring during vulnerable developmental stages
phylogenetic signal
The tendency for related species to resemble each other more than expected by chance, measured by Blomberg's K and Pagel's lambda
seed viability
The measure of seed quality based on embryonic development and potential for successful germination
synchrony
The degree to which individuals in a population exhibit coordinated timing of nesting activity
ideal free distribution
Theory that animals distribute themselves among habitat patches in proportion to resource availability, with high-quality patches becoming occupied first and animals moving to lower-quality patches as...
Julian day
Day of year from 1-365 used to measure timing of biological events
floral size-seed correlation
The hypothesis that larger flowers produce more seeds due to greater resource allocation or pollinator attraction
flowering curve
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
herbarium specimen collection bias
Systematic tendency for historical plant collectors to preferentially collect rare or uncommon species while avoiding common, dominant species
monocarpic perennial life history
Plants that live for multiple years but flower only once before dying
phenological overlap
The number of weeks during a growing season when both pollinators and their floral resources are active and available
precipitation variability
Variation in rainfall patterns between years affecting plant growth and flower production