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 100Mass Coral SpawningBiological and Seasonal PhenomenaMelt pondOcean and Marine PhenomenaMercury CycleBiogeochemical CyclesMesopredator release hypothesisEcological ProcessesMetamorphosisAnimal Behavior and AdaptationMetapopulationEcological ProcessesMeteor ShowerAstronomical PhenomenaMeteorite ImpactGeological EventsMeteotsunamiOcean and Marine PhenomenaMicroburstSevere Weather and StormsMidnight SunClimate and Weather PatternsMigrationAnimal Behavior and AdaptationMilky Seas EffectOcean and Marine PhenomenaMimicryAnimal Behavior and AdaptationMirageAtmospheric OpticsMistralClimate and Weather PatternsMonarch Butterfly MigrationAnimal Behavior and AdaptationMonotypic TaxonEvolutionary ProcessesMonsoonClimate and Weather PatternsMoonbowAtmospheric OpticsMud Volcano EruptionGeological EventsMüllerian mimicryAnimal Behavior and AdaptationMurmurationAnimal Behavior and AdaptationMutualismEcological ProcessesNacreous CloudsAtmospheric OpticsNasonov pheromoneAnimal Behavior and AdaptationNatural SelectionEvolutionary ProcessesNaturalisation (biology)Ecological ProcessesNectar sourceEcological ProcessesNiche apportionment modelsEcological ProcessesNitrogen CycleBiogeochemical CyclesNoctilucent CloudsAtmospheric OpticsNocturnalityAnimal Behavior and AdaptationNonadaptive radiationEvolutionary ProcessesNonecological speciationEvolutionary ProcessesNorth Atlantic OscillationClimate and Weather PatternsNuptial giftAnimal Behavior and AdaptationOccupancy-abundance relationshipEcological ProcessesOcean AcidificationOcean and Marine PhenomenaOcean CurrentsOcean and Marine PhenomenaOceanic dispersalEcological ProcessesOrbital sunriseGeological and Atmospheric PhenomenaOsmoregulationAnimal Behavior and AdaptationOverabundant SpeciesEcological ProcessesOxygen CycleBiogeochemical CyclesPaleopolyploidyEvolutionary ProcessesPancake IceCryospheric and Ice PhenomenaParallel evolutionEvolutionary ProcessesParallel speciationEvolutionary ProcessesParapatric speciationEvolutionary ProcessesParasitismEcological ProcessesPellet (ornithology)Animal Behavior and AdaptationPenitentesCryospheric and Ice PhenomenaPeripatric speciationEvolutionary ProcessesPhenotypic disparityEvolutionary ProcessesPhilopatryAnimal Behavior and AdaptationPhosphorus CycleBiogeochemical CyclesPhotoperiodismAnimal Behavior and AdaptationPhotosynthesisEcological ProcessesPhylogenetic niche conservatismEvolutionary ProcessesPhylogenetic signalEvolutionary ProcessesPlasma fountainGeological and Atmospheric PhenomenaPlate TectonicsGeological and Atmospheric PhenomenaPolar NightClimate and Weather PatternsPolar Vortex OutbreakSevere Weather and StormsPollinationEcological ProcessesPolymorphism (biology)Evolutionary ProcessesPolynyaOcean and Marine PhenomenaPolyploidyEvolutionary ProcessesPopulation bottleneckEvolutionary ProcessesPredationEcological ProcessesPunctuated EquilibriumEvolutionary ProcessesPyroclastic FlowGeological and Atmospheric PhenomenaQueen mandibular pheromoneAnimal Behavior and AdaptationRadio atmospheric signalGeological and Atmospheric PhenomenaRainbowAtmospheric OpticsRank abundance curveEcological ProcessesRarefaction (ecology)Ecological ProcessesRed Tide (Harmful Algal Bloom)Biological and Seasonal PhenomenaReinforcement (speciation)Evolutionary ProcessesRelative species abundanceEcological ProcessesReverse waterfallGeological and Atmospheric PhenomenaRing speciesEvolutionary ProcessesRip CurrentOcean and Marine PhenomenaRiver barrier hypothesisEvolutionary ProcessesRogue WaveGeological EventsSalmon RunBiological and Seasonal PhenomenaSaltation (biology)Evolutionary ProcessesSanta Ana WindsClimate and Weather PatternsSardine RunAnimal Behavior and AdaptationSea Turtle Nesting MigrationAnimal Behavior and AdaptationSecondary contactEvolutionary ProcessesSeicheOcean and Marine PhenomenaSexual SelectionEvolutionary ProcessesShelf CloudAtmospheric OpticsShuga (ice)Ocean and Marine PhenomenaSinging sandGeological and Atmospheric PhenomenaSinkhole CollapseGeological EventsSiroccoClimate and Weather PatternsSnow RollerCryospheric and Ice Phenomena← Previous1234Next →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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