Contents 1 Characteristics 2 Detection 3 Examples 4 See also 5 Notes 6 External links

Characteristics[edit] Thresholds can be characterized as points or as zones. Zone-type thresholds imply a gradual shift or transition from one state to another rather than an abrupt change at a specific point.[2] Ecological thresholds have caught attention because many cases of catastrophic worsening of conditions have proved to be difficult or nearly impossible to remedy (also known as points of no return). Ecological extinction is an example of a definitive point of no return. Ecological thresholds are often characterized by hysteresis, which means the dependence of the state of a system on the history of its state. Even when the change is not irreversible, the return path from altered to original state can be drastically different from the development leading to the altered state. Another related concept is panarchy. Panarchy views coupled human-natural systems as a cross-scale set of adaptive cycles that reflect the dynamic nature of human and natural structures across time and space. Sudden shifts in ecosystem state can induce changes in human understanding of the way the systems need to be managed. These changes, in turn, may alter the institutions that carry out that management and as a result, some new changes occur in ecosystems.

Detection[edit] There are many different types of thresholds and detecting the occurrence of a threshold is not always straightforward. One approach is to process time series which are thought to display a shift in order to identify a possible jump. Methods have been developed to enhance and localize the jumps.[3]

Examples[edit] Some examples of ecological thresholds, such as clear lakes turning into turbid ones, are well documented but many more are probable to exist. The thresholds database [4] by Resilience Alliance and Santa Fe Institute includes over one hundred examples.

See also[edit] Carrying capacity Catastrophe theory Dual-phase evolution suggests a mechanism underlying ecological thresholds and zones. Inflection point Tipping point (climatology)

Notes[edit] ^ Groffman, P., Baron, J., Blett, T., Gold, A., Goodman, I., Gunderson, L., Levinson, B., Palmer, M., Paerl, H., Peterson, G., LeRoy Poff, N., Rejeski, D., Reynolds, J., Turner, M., Weathers, K., & Wiens, J. 2006. Ecological thresholds: the key to successful environmental management or an important concept with no practical application? Ecosystems 9(1):1–13. pdf ^ Huggett, A. 2005. The concept and utility of "ecological thresholds" in biodiversity conservation. Biological Conservation 124(3):301–310 ^ Thresholds enhancer Archived 2011-07-20 at the Wayback Machine. ^ Thresholds database

External links[edit] Resilience Alliance A multidisciplinary research group that explores the dynamics of complex adaptive systems Thresholds of environmental sustainability A research project focusing on ecological thresholds v t e Ecology: Modelling ecosystems: Trophic components General Abiotic component Abiotic stress Behaviour Biogeochemical cycle Biomass Biotic component Biotic stress Carrying capacity Competition Ecosystem Ecosystem ecology Ecosystem model Keystone species List of feeding behaviours Metabolic theory of ecology Productivity Resource Producers Autotrophs Chemosynthesis Chemotrophs Foundation species Mixotrophs Myco-heterotrophy Mycotroph Organotrophs Photoheterotrophs Photosynthesis Photosynthetic efficiency Phototrophs Primary nutritional groups Primary production Consumers Apex predator Bacterivore Carnivores Chemoorganotroph Foraging Generalist and specialist species Intraguild predation Herbivores Heterotroph Heterotrophic nutrition Insectivore Mesopredators Mesopredator release hypothesis Omnivores Optimal foraging theory Predation Prey switching Decomposers Chemoorganoheterotrophy Decomposition Detritivores Detritus Microorganisms Archaea Bacteriophage Environmental microbiology Lithoautotroph Lithotrophy Microbial cooperation Microbial ecology Microbial food web Microbial intelligence Microbial loop Microbial mat Microbial metabolism Phage ecology Food webs Biomagnification Ecological efficiency Ecological pyramid Energy flow Food chain Trophic level Example webs Cold seeps Hydrothermal vents Intertidal Kelp forests Lakes North Pacific Subtropical Gyre Rivers San Francisco Estuary Soil Tide pool Processes Ascendency Bioaccumulation Cascade effect Climax community Competitive exclusion principle Consumer-resource systems Copiotrophs Dominance Ecological network Ecological succession Energy quality Energy Systems Language f-ratio Feed conversion ratio Feeding frenzy Mesotrophic soil Nutrient cycle Oligotroph Paradox of the plankton Trophic cascade Trophic mutualism Trophic state index Defense, counter Animal coloration Antipredator adaptations Camouflage Deimatic behaviour Herbivore adaptations to plant defense Mimicry Plant defense against herbivory Predator avoidance in schooling fish v t e Ecology: Modelling ecosystems: Other components Population ecology Abundance Allee effect Depensation Ecological yield Effective population size Intraspecific competition Logistic function Malthusian growth model Maximum sustainable yield Overpopulation in wild animals Overexploitation Population cycle Population dynamics Population modeling Population size Predator–prey (Lotka–Volterra) equations Recruitment Resilience Small population size Stability Species Biodiversity Density-dependent inhibition Ecological effects of biodiversity Ecological extinction Endemic species Flagship species Gradient analysis Indicator species Introduced species Invasive species Latitudinal gradients in species diversity Minimum viable population Neutral theory Occupancy–abundance relationship Population viability analysis Priority effect Rapoport's rule Relative abundance distribution Relative species abundance Species diversity Species homogeneity Species richness Species distribution Species-area curve Umbrella species Species interaction Antibiosis Biological interaction Commensalism Community ecology Ecological facilitation Interspecific competition Mutualism Storage effect Spatial ecology Biogeography Cross-boundary subsidy Ecocline Ecotone Ecotype Disturbance Edge effects Foster's rule Habitat fragmentation Ideal free distribution Intermediate Disturbance Hypothesis Island biogeography Landscape ecology Landscape epidemiology Landscape limnology Metapopulation Patch dynamics r/K selection theory Resource selection function Source–sink dynamics Niche Ecological niche Ecological trap Ecosystem engineer Environmental niche modelling Guild Habitat Marine habitats Limiting similarity Niche apportionment models Niche construction Niche differentiation Other networks Assembly rules Bateman's principle Bioluminescence Ecological collapse Ecological debt Ecological deficit Ecological energetics Ecological indicator Ecological threshold Ecosystem diversity Emergence Extinction debt Kleiber's law Liebig's law of the minimum Marginal value theorem Thorson's rule Xerosere Other Allometry Alternative stable state Balance of nature Biological data visualization Ecocline Ecological economics Ecological footprint Ecological forecasting Ecological humanities Ecological stoichiometry Ecopath Ecosystem based fisheries Endolith Evolutionary ecology Functional ecology Industrial ecology Macroecology Microecosystem Natural environment Regime shift Systems ecology Urban ecology Theoretical ecology List of ecology topics Retrieved from "" Categories: Ecological economicsEcology terminologyHidden categories: Webarchive template wayback links

Navigation menu Personal tools Not logged inTalkContributionsCreate accountLog in Namespaces ArticleTalk Variants Views ReadEditView history More Search Navigation Main pageContentsFeatured contentCurrent eventsRandom articleDonate to WikipediaWikipedia store Interaction HelpAbout WikipediaCommunity portalRecent changesContact page Tools What links hereRelated changesUpload fileSpecial pagesPermanent linkPage informationWikidata itemCite this page Print/export Create a bookDownload as PDFPrintable version Languages Suomi Edit links This page was last edited on 26 January 2018, at 09:12. Text is available under the Creative Commons Attribution-ShareAlike License; additional terms may apply. By using this site, you agree to the Terms of Use and Privacy Policy. Wikipedia® is a registered trademark of the Wikimedia Foundation, Inc., a non-profit organization. Privacy policy About Wikipedia Disclaimers Contact Wikipedia Developers Cookie statement Mobile view (window.RLQ=window.RLQ||[]).push(function(){mw.config.set({"wgPageParseReport":{"limitreport":{"cputime":"0.076","walltime":"0.093","ppvisitednodes":{"value":327,"limit":1000000},"ppgeneratednodes":{"value":0,"limit":1500000},"postexpandincludesize":{"value":39866,"limit":2097152},"templateargumentsize":{"value":89,"limit":2097152},"expansiondepth":{"value":7,"limit":40},"expensivefunctioncount":{"value":0,"limit":500},"unstrip-depth":{"value":0,"limit":20},"unstrip-size":{"value":1964,"limit":5000000},"entityaccesscount":{"value":0,"limit":400},"timingprofile":["100.00% 49.427 1 -total"," 59.73% 29.521 1 Template:Reflist"," 40.12% 19.831 1 Template:Modelling_ecosystems"," 38.03% 18.796 1 Template:Webarchive"," 33.81% 16.713 2 Template:Navbox"," 3.18% 1.574 1 Template:Main_other"]},"scribunto":{"limitreport-timeusage":{"value":"0.016","limit":"10.000"},"limitreport-memusage":{"value":1042290,"limit":52428800}},"cachereport":{"origin":"mw1319","timestamp":"20180314012850","ttl":1900800,"transientcontent":false}}});});(window.RLQ=window.RLQ||[]).push(function(){mw.config.set({"wgBackendResponseTime":69,"wgHostname":"mw1326"});});

Ecological_threshold - Photos and All Basic Informations

Ecological_threshold More Links

Disturbance (ecology)EcosystemEcological ResilienceEcosystem HealthCritical LoadTipping Point (climatology)Regime ShiftEcological ExtinctionHysteresisPanarchyCarrying CapacityCatastrophe TheoryDual-phase EvolutionInflection PointTipping Point (climatology)Wayback MachineTemplate:Modelling EcosystemsTemplate Talk:Modelling EcosystemsEcologyEcosystem ModelTrophic LevelAbiotic ComponentAbiotic StressBehavioral EcologyBiogeochemical CycleBiomass (ecology)Biotic ComponentBiotic StressCarrying CapacityCompetition (biology)EcosystemEcosystem EcologyEcosystem ModelKeystone SpeciesList Of Feeding BehavioursMetabolic Theory Of EcologyProductivity (ecology)Resource (biology)Primary ProducersAutotrophChemosynthesisChemotrophFoundation SpeciesMixotrophMyco-heterotrophyMycotrophOrganotrophPhotoheterotrophPhotosynthesisPhotosynthetic EfficiencyPhototrophPrimary Nutritional GroupsPrimary ProductionConsumers (food Chain)Apex PredatorBacterivoreCarnivoreChemoorganotrophForagingGeneralist And Specialist SpeciesIntraguild PredationHerbivoreHeterotrophHeterotrophic NutritionInsectivoreMesopredatorMesopredator Release HypothesisOmnivoreOptimal Foraging TheoryPredationPrey SwitchingDecomposerChemoorganoheterotrophyDecompositionDetritivoreDetritusMicroorganismArchaeaBacteriophageEnvironmental MicrobiologyLithoautotrophLithotrophMicrobial CooperationMicrobial EcologyMicrobial Food WebMicrobial IntelligenceMicrobial LoopMicrobial MatMicrobial MetabolismPhage EcologyFood WebBiomagnificationEcological EfficiencyEcological PyramidEnergy Flow (ecology)Food ChainTrophic LevelCold SeepHydrothermal VentIntertidal EcologyKelp ForestLake EcosystemNorth Pacific Subtropical GyreRiver EcosystemEcology Of The San Francisco EstuarySoil Food WebTide PoolAscendencyBioaccumulationCascade Effect (ecology)Climax CommunityCompetitive Exclusion PrincipleConsumer-resource SystemsCopiotrophDominance (ecology)Ecological NetworkEcological SuccessionEnergy QualityEnergy Systems LanguageF-ratioFeed Conversion RatioFeeding FrenzyMesotrophic SoilNutrient CycleOligotrophParadox Of The PlanktonTrophic CascadeTrophic MutualismTrophic State IndexAnimal ColorationAntipredator AdaptationCamouflageDeimatic BehaviourHerbivore Adaptations To Plant DefenseMimicryPlant Defense Against HerbivoryShoaling And SchoolingTemplate:Modelling EcosystemsTemplate Talk:Modelling EcosystemsEcologyEcosystem ModelPopulation EcologyAbundance (ecology)Allee EffectDepensationEcological YieldEffective Population SizeIntraspecific CompetitionLogistic FunctionMalthusian Growth ModelMaximum Sustainable YieldOverpopulation In Wild AnimalsOverexploitationPopulation CyclePopulation DynamicsPopulation ModelingPopulation SizeLotka–Volterra EquationsRecruitment (biology)Resilience (ecology)Small Population SizeEcological StabilityBiodiversityDensity DependenceEcological Effects Of BiodiversityEcological ExtinctionEndemic SpeciesFlagship SpeciesGradient AnalysisIndicator SpeciesIntroduced SpeciesInvasive SpeciesLatitudinal Gradients In Species DiversityMinimum Viable PopulationUnified Neutral Theory Of BiodiversityOccupancy–abundance RelationshipPopulation Viability AnalysisPriority EffectRapoport's RuleRelative Abundance DistributionRelative Species AbundanceSpecies DiversitySpecies HomogeneitySpecies RichnessSpecies DistributionSpecies-area CurveUmbrella SpeciesAntibiosisBiological InteractionCommensalismCommunity EcologyEcological FacilitationInterspecific CompetitionMutualism (biology)Storage EffectSpatial EcologyBiogeographyCross-boundary SubsidyEcoclineEcotoneEcotypeDisturbance (ecology)Edge EffectsFoster's RuleHabitat FragmentationIdeal Free DistributionIntermediate Disturbance HypothesisIsland BiogeographyLandscape EcologyLandscape EpidemiologyLandscape LimnologyMetapopulationPatch DynamicsR/K Selection TheoryResource Selection FunctionSource–sink DynamicsEcological NicheEcological NicheEcological TrapEcosystem EngineerEnvironmental Niche ModellingGuild (ecology)HabitatMarine HabitatsLimiting SimilarityNiche Apportionment ModelsNiche ConstructionNiche DifferentiationNon-trophic NetworksAssembly RulesBateman's PrincipleBioluminescenceEcological CollapseEcological DebtEcological DeficitEcological EnergeticsEcological IndicatorEcosystem DiversityEmergenceExtinction DebtKleiber's LawLiebig's Law Of The MinimumMarginal Value TheoremThorson's RuleXerosereAllometryAlternative Stable StateBalance Of NatureBiological Data VisualizationCline (biology)Ecological EconomicsEcological FootprintEcological ForecastingEcological HumanitiesEcological StoichiometryEcopathEcosystem Based FisheriesEndolithEvolutionary EcologyFunctional EcologyIndustrial EcologyMacroecologyMicroecosystemNatural EnvironmentRegime ShiftSystems EcologyUrban EcologyTheoretical EcologyList Of Ecology TopicsHelp:CategoryCategory:Ecological EconomicsCategory:Ecology TerminologyCategory:Webarchive Template Wayback LinksDiscussion About Edits From This IP Address [n]A List Of Edits Made From This IP Address [y]View The Content Page [c]Discussion About The Content Page [t]Edit This Page [e]Visit The Main Page [z]Guides To Browsing WikipediaFeatured Content – The Best Of WikipediaFind Background Information On Current EventsLoad A Random Article [x]Guidance On How To Use And Edit WikipediaFind Out About WikipediaAbout The Project, What You Can Do, Where To Find ThingsA List Of Recent Changes In The Wiki [r]List Of All English Wikipedia Pages Containing Links To This Page [j]Recent Changes In Pages Linked From This Page [k]Upload Files [u]A List Of All Special Pages [q]Wikipedia:AboutWikipedia:General Disclaimer

view link view link view link view link view link