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Concepts

All (16)Explore Concept Graph

16 concepts

phenomenon

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

climate202 papers
measurement

snow cover duration

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

climate68 papers
measurement

growing degree days

Temperature accumulation metric calculated using averaging method with base temperature, used to predict insect phenology and plant development

climate22 papers
process

frost damage

Direct damage to plant buds and flowers from freezing temperatures occurring during vulnerable developmental stages

climate17 papers
measurement

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

evolution16 papers
measurement

seed viability

The measure of seed quality based on embryonic development and potential for successful germination

population ecology9 papers
measurement

synchrony

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

population ecology5 papers
theory

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...

population ecology4 papers
measurement

Julian day

Day of year from 1-365 used to measure timing of biological events

methodological2 papers
hypothesis

floral size-seed correlation

The hypothesis that larger flowers produce more seeds due to greater resource allocation or pollinator attraction

population ecology2 papers
measurement

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

general ecology2 papers
phenomenon

herbarium specimen collection bias

Systematic tendency for historical plant collectors to preferentially collect rare or uncommon species while avoiding common, dominant species

methodological2 papers
phenomenon

monocarpic perennial life history

Plants that live for multiple years but flower only once before dying

population ecology2 papers
measurement

phenological overlap

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

population ecology2 papers
phenomenon

precipitation variability

Variation in rainfall patterns between years affecting plant growth and flower production

climate2 papers
measurement

green chromatic coordinate

methodological1 paper