Home›Natural Phenomena›All Natural PhenomenaBrowse ByAll Natural PhenomenaReference and ClassificationDevelopingNatural phenomena are the events and processes nature produces, rather than the living things or places that host them: migrations, blooms, and geological or weather events with a natural history dimension. This category excludes phenomena that belong to Earth or Space as a discipline unless nature carries a distinct biological or ecological facet those atlases do not.All Natural PhenomenaSourcesComments (0)Reader Challenges (0)All Natural PhenomenaFilter Results356 entriesBiomeAllAbyssal Zone (1)Alpine (1)Bathyal Zone (1)Boreal Forest (1)Chaparral (2)Cold Seep (1)Desert (8)Estuary (1)Fen (1)Freshwater (1)Freshwater Marsh (1)Grassland (5)Hadal Zone (1)Hydrothermal Vent (1)Ice Sheet (1)Lake (1)Marine (3)Neritic Zone (1)Paramo (1)Polar Desert (1)Puna (1)Riparian Zone (1)Savanna (2)Seagrass Meadow (2)Steppe (1)Temperate Forest (2)Temperate Rainforest (1)Tropical and Subtropical Coniferous Forest (1)Tropical Dry Forest (1)Tropical Rainforest (1)Tundra (4)Vernal Pool (1)Wetlands (2)Xeric Shrubland (1)PeriodicityAllAbout 13 or 14 times per century (1)Annual breeding seasons in many amphibians (1)Annual, May through July, not every year (1)Autumn or early winter, usually seen in the early morning (1)Forms on cold, clear nights (1)Life cycle of some 30 to 60 years per circle (1)Occur in all the world's oceans many times each day (1)Occurs when conditions turn cold (1)Perigean spring tides occur three or four times a year (1)Rare, because moonlight is far dimmer than sunlight (1)Seasonal, stronger in winter (1)Varies with the 11-year solar cycle (1)ScaleAllAtmosphere is 21 percent oxygen, roughly 3.4x10^19 mol of O2 (1)Circles more than 15 metres in diameter observed (1)Diameters from 30 cm to 3 m, thickness up to 10 cm (1)From a few centimetres to over 5 metres long (1)Landscape, total species diversity (1)Layer depth from about 20 to 30 m up to 300 m (1)Local scale, mean species diversity within a site (1)Perhaps 40 percent of described species are parasitic (1)Short-lived, seldom lasting longer than 10 minutes (1)Widespread in insects, less so in vertebrates (1)Show ResultsBrowseCompareSelect all 100Abiotic stressEcological ProcessesAbundance (ecology)Ecological ProcessesAcclimatizationAnimal Behavior and AdaptationAdaptive RadiationEvolutionary ProcessesAlgal BloomBiological and Seasonal PhenomenaAllee effectEcological ProcessesAllelopathyEcological ProcessesAllochronic speciationEvolutionary ProcessesAllopatric speciationEvolutionary ProcessesAlpha diversityEcological ProcessesAltruism (biology)Animal Behavior and AdaptationAmensalismEcological ProcessesAnabatic WindClimate and Weather PatternsAnagenesisEvolutionary ProcessesAnt Nuptial FlightAnimal Behavior and AdaptationAnting (behavior)Animal Behavior and AdaptationApitoxinAnimal Behavior and AdaptationAposematismAnimal Behavior and AdaptationArctic ice packOcean and Marine PhenomenaArctic Tern MigrationAnimal Behavior and AdaptationArribadaAnimal Behavior and AdaptationAssortative matingEvolutionary ProcessesAtmospheric ElectricityGeological and Atmospheric PhenomenaAuroraGeological and Atmospheric PhenomenaAuroral chorusGeological and Atmospheric PhenomenaAutotomyAnimal Behavior and AdaptationAvalancheGeological EventsBackground selectionEvolutionary ProcessesBait BallBiological and Seasonal PhenomenaBall LightningAtmospheric OpticsBatesian mimicryAnimal Behavior and AdaptationBateson-Dobzhansky-Muller modelEvolutionary ProcessesBee broodAnimal Behavior and AdaptationBee stingAnimal Behavior and AdaptationBee SwarmingAnimal Behavior and AdaptationBelt of VenusGeological and Atmospheric PhenomenaBeta diversityEcological ProcessesBioaccumulationEcological ProcessesBiodiversityEcological ProcessesBiodiversity hotspotEcological ProcessesBioluminescenceAnimal Behavior and AdaptationBiomagnificationEcological ProcessesBiotic homogenizationEcological ProcessesBlack drop effectGeological and Atmospheric PhenomenaBlizzardSevere Weather and StormsBlood MoonAstronomical PhenomenaBlue jetGeological and Atmospheric PhenomenaBlue MoonAstronomical PhenomenaBora (Wind)Climate and Weather PatternsBrine rejectionOcean and Marine PhenomenaBrinicleCryospheric and Ice PhenomenaBrocken SpectreAtmospheric OpticsBrood parasitismAnimal Behavior and AdaptationBrumationAnimal Behavior and AdaptationCalcium CycleBiogeochemical CyclesCamouflageAnimal Behavior and AdaptationCarbon CycleBiogeochemical CyclesCaribou MigrationAnimal Behavior and AdaptationCharacter displacementEvolutionary ProcessesChemosensory speciationEvolutionary ProcessesChemosynthesisEcological ProcessesChinook WindClimate and Weather PatternsChristmas Island Red Crab MigrationAnimal Behavior and AdaptationCicada Emergence (Periodical Cicadas)Biological and Seasonal PhenomenaCircadian RhythmAnimal Behavior and AdaptationClosed ecological systemEcological ProcessesCoevolutionEvolutionary ProcessesColonisation (biology)Ecological ProcessesCommensalismEcological ProcessesCompact intracloud dischargeGeological and Atmospheric PhenomenaCompilospeciesEvolutionary ProcessesCondensation cloudGeological and Atmospheric PhenomenaConvectionGeological and Atmospheric PhenomenaConvergent EvolutionEvolutionary ProcessesCoral BleachingOcean and Marine PhenomenaCosmopolitan distributionEcological ProcessesCospeciationEvolutionary ProcessesCountershadingAnimal Behavior and AdaptationCrepuscular RaysAtmospheric OpticsCryptic species complexEvolutionary ProcessesCultural keystone speciesEcological ProcessesDawnClimate and Weather PatternsDecompositionEcological ProcessesDefaunationEcological ProcessesDensity DependenceEcological ProcessesDeposition (phase transition)Geological and Atmospheric PhenomenaDerechoSevere Weather and StormsDesertificationClimate and Weather PatternsDiamond DustCryospheric and Ice PhenomenaDiapauseAnimal Behavior and AdaptationDiel vertical migrationOcean and Marine PhenomenaDiploidizationEvolutionary ProcessesDivergent evolutionEvolutionary ProcessesDiversity-function debateEcological ProcessesDouble sunsetGeological and Atmospheric PhenomenaDownburstSevere Weather and StormsDroughtSevere Weather and StormsDust DevilSevere Weather and StormsDust StormSevere Weather and StormsEarthquakeGeological Events1234Next →SourcesNational Oceanic and Atmospheric Administrationtier 1National Oceanic and Atmospheric AdministrationContains: AuroraContains: MonsoonContains: TidesContains: Ocean CurrentsView the SourceEncyclopaedia Britannicatier 1Encyclopaedia Britannica, Inc.Contains: WildfireView the SourceWhat Is Ecological Succession? (University of Chicago News)University of Chicago NewsContains: SuccessionView the SourceTrophic Cascade (Wikipedia)tier 2WikipediaContains: Trophic CascadeView the SourceCamouflage (Wikipedia)tier 2WikipediaContains: CamouflageView the SourceEstivation (Wikipedia)tier 2WikipediaContains: EstivationView the SourceCoral Bleaching (NOAA Ocean Service)National Oceanic and Atmospheric AdministrationContains: Coral BleachingView the SourceConvergent Evolution (Wikipedia)tier 2WikipediaContains: Convergent EvolutionView the SourceDefining Desertification (NASA Earth Observatory)NASA Earth ObservatoryContains: DesertificationView the SourcePhosphorus Cycle (Wikipedia)tier 2WikipediaContains: Phosphorus CycleView the SourceOcean Acidification (NOAA Ocean Service)National Oceanic and Atmospheric AdministrationContains: Ocean AcidificationView the SourceComments (0)No comments yet. Be the first to share a thought.Sign in to join the discussion.Reader Challenges (0)No disputes yet. 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