phenology
Studying nature's calendar
Phenology is the study of cyclical natural phenomena—when plants bloom, when birds migrate, when insects emerge—and how these events relate to climate and seasonal change.
The field tracks timing: Cherry blossom phenology has shifted earlier over the past century.
Climate researchers use phenological records to document environmental change.
Producing reproductive structures
- buddingDeveloping from an outgrowth
- germinationSeed's initial growth phase
- bloomingProducing flowers now
- leafingCasually turning pages
senescence · fruiting · pollination · first bloom · ripening · harvest · dormancy · bolting
Sustained temperature increases over time
- mismatchIncompatible combination
- photoperiodDuration of daily light
- frost datesSeasonal freezing benchmarks
- citizen scienceNonprofessionals contributing to studies
Recoiling metal spiral
- autumnPost-summer cooling period
- winterYear's coldest quarter
- summerYear's warmest season
- vernalRelating to spring
autumnal · equinox · solstice · frost · thaw · first frost · last frost · growing season
Movement to new territory
- hibernationProlonged winter dormancy
- nestingMaking a dwelling
- spawningReleasing eggs to reproduce
- moltingPeriodic shedding of covering
breeding · calving · fledging · emergence · egg-laying · metamorphosis · diapause · torpor
Temporal coordination
- life cycleOrganism's full developmental sequence
- adaptationFitting to new conditions
- interdependenceReciprocal reliance between entities
flowering
Producing reproductive structures
- buddingDeveloping from an outgrowth
- germinationSeed's initial growth phase
- bloomingProducing flowers now
leafing · senescence · fruiting · pollination · first bloom · ripening · harvest · dormancy · bolting · abscission
warming trends
Sustained temperature increases over time
- mismatchIncompatible combination
- photoperiodDuration of daily light
- frost datesSeasonal freezing benchmarks
spring
Recoiling metal spiral
vernal · autumnal · equinox · solstice · frost · thaw · first frost · last frost · growing season · leaf-out
migration
Movement to new territory
- hibernationProlonged winter dormancy
- nestingMaking a dwelling
- spawningReleasing eggs to reproduce
molting · breeding · calving · fledging · emergence · egg-laying · metamorphosis · diapause · torpor · rutting
synchrony
Temporal coordination
- life cycleOrganism's full developmental sequence
- adaptationFitting to new conditions
- interdependenceReciprocal reliance between entities
phenologymeteorology
Study of atmospheric phenomena
climatology · geology · geophysics · physical geography · hydrology