Matches in DBpedia 2016-04 for { <http://dbpedia.org/resource/Extinction_event> ?p ?o }
- Extinction_event abstract "An extinction event (also known as a mass extinction or biotic crisis) is a widespread and rapid decrease in the amount of life on Earth. Such an event is identified by a sharp change in the diversity and abundance of multicellular organisms. It occurs when the rate of extinction increases with respect to the rate of speciation. Because the majority of diversity and biomass on Earth is microbial, and thus difficult to measure, recorded extinction events affect the easily observed, biologically complex component of the biosphere rather than the total diversity and abundance of life.Extinction occurs at an uneven rate. Based on the fossil record, the background rate of extinctions on Earth is about two to five taxonomic families of marine animals every million years.Marine fossils are mostly used to measure extinction rates because of their superior fossil record and stratigraphic range compared to land organisms.The Great Oxygenation Event was probably the first major extinction event. Since the Cambrian explosion five further major mass extinctions have significantly exceeded the background extinction rate. The most recent and debatably best-known, the Cretaceous–Paleogene extinction event, which occurred approximately 66 million years ago (Ma), was a large-scale mass extinction of animal and plant species in a geologically short period of time. In addition to the five major mass extinctions, there are numerous minor ones as well and the ongoing mass-extinction caused by human activity is sometimes called the sixth extinction. Mass extinctions seem to be a mainly Phanerozoic phenomenon, with extinction rates low before large complex organisms arose.Estimates of the number of major mass extinctions in the last 540 million years range from as few as five to more than twenty. These differences stem from the threshold chosen for describing an extinction event as \"major\", and the data chosen to measure past diversity.".
- Extinction_event thumbnail KT_boundary_054.jpg?width=300.
- Extinction_event wikiPageExternalLink lbl-nem.htm.
- Extinction_event wikiPageExternalLink jack.
- Extinction_event wikiPageExternalLink impacteffects.
- Extinction_event wikiPageExternalLink 050503_mass_extinctions.html.
- Extinction_event wikiPageExternalLink www.speciesalliance.com.
- Extinction_event wikiPageExternalLink cowen1a.html.
- Extinction_event wikiPageExternalLink sixthextinction.html.
- Extinction_event wikiPageID "9813".
- Extinction_event wikiPageLength "65218".
- Extinction_event wikiPageOutDegree "248".
- Extinction_event wikiPageRevisionID "707511809".
- Extinction_event wikiPageWikiLink Acid_rain.
- Extinction_event wikiPageWikiLink Amphibian.
- Extinction_event wikiPageWikiLink Anoxic_event.
- Extinction_event wikiPageWikiLink Aptian_extinction.
- Extinction_event wikiPageWikiLink Archosaur.
- Extinction_event wikiPageWikiLink Attribution_of_recent_climate_change.
- Extinction_event wikiPageWikiLink Background_extinction_rate.
- Extinction_event wikiPageWikiLink Bioavailability.
- Extinction_event wikiPageWikiLink Biodiversity.
- Extinction_event wikiPageWikiLink Bioevent.
- Extinction_event wikiPageWikiLink Biomass_(ecology).
- Extinction_event wikiPageWikiLink Biosphere.
- Extinction_event wikiPageWikiLink Bird.
- Extinction_event wikiPageWikiLink Cambrian.
- Extinction_event wikiPageWikiLink Cambrian_explosion.
- Extinction_event wikiPageWikiLink Cambrian–Ordovician_extinction_event.
- Extinction_event wikiPageWikiLink Carbon_dioxide.
- Extinction_event wikiPageWikiLink Carboniferous.
- Extinction_event wikiPageWikiLink Carnian_Pluvial_Event.
- Extinction_event wikiPageWikiLink Category:Climate_history.
- Extinction_event wikiPageWikiLink Category:Evolutionary_biology.
- Extinction_event wikiPageWikiLink Category:Extinction_events.
- Extinction_event wikiPageWikiLink Category:Hypothetical_impact_events.
- Extinction_event wikiPageWikiLink Chicxulub_impactor.
- Extinction_event wikiPageWikiLink Clade.
- Extinction_event wikiPageWikiLink Clathrate_compound.
- Extinction_event wikiPageWikiLink Continental_shelf.
- Extinction_event wikiPageWikiLink Cretaceous.
- Extinction_event wikiPageWikiLink Cretaceous–Paleogene_extinction_event.
- Extinction_event wikiPageWikiLink Crurotarsi.
- Extinction_event wikiPageWikiLink Danian.
- Extinction_event wikiPageWikiLink David_M._Raup.
- Extinction_event wikiPageWikiLink Dead_clade_walking.
- Extinction_event wikiPageWikiLink Deposition_(geology).
- Extinction_event wikiPageWikiLink Devonian.
- Extinction_event wikiPageWikiLink Diapsid.
- Extinction_event wikiPageWikiLink Dinosaur.
- Extinction_event wikiPageWikiLink Disease.
- Extinction_event wikiPageWikiLink Dresbachian.
- Extinction_event wikiPageWikiLink Earth.
- Extinction_event wikiPageWikiLink Earthquake.
- Extinction_event wikiPageWikiLink Earths_magnetic_field.
- Extinction_event wikiPageWikiLink Ecological_niche.
- Extinction_event wikiPageWikiLink Elvis_taxon.
- Extinction_event wikiPageWikiLink End-Botomian_mass_extinction.
- Extinction_event wikiPageWikiLink End-Ediacaran_extinction.
- Extinction_event wikiPageWikiLink Endangered_species.
- Extinction_event wikiPageWikiLink Eocene–Oligocene_extinction_event.
- Extinction_event wikiPageWikiLink Equator.
- Extinction_event wikiPageWikiLink Escalation_hypothesis.
- Extinction_event wikiPageWikiLink Essential_(biology).
- Extinction_event wikiPageWikiLink Extinction.
- Extinction_event wikiPageWikiLink Family_(biology).
- Extinction_event wikiPageWikiLink Flood_basalt.
- Extinction_event wikiPageWikiLink Food_chain.
- Extinction_event wikiPageWikiLink Fossil.
- Extinction_event wikiPageWikiLink Frasnian.
- Extinction_event wikiPageWikiLink Gamma-ray_burst.
- Extinction_event wikiPageWikiLink Genus.
- Extinction_event wikiPageWikiLink Geologic_time_scale.
- Extinction_event wikiPageWikiLink Geomagnetic_reversal.
- Extinction_event wikiPageWikiLink Glacial_period.
- Extinction_event wikiPageWikiLink Global_catastrophic_risk.
- Extinction_event wikiPageWikiLink Global_warming.
- Extinction_event wikiPageWikiLink Great_American_Interchange.
- Extinction_event wikiPageWikiLink Great_Oxygenation_Event.
- Extinction_event wikiPageWikiLink Greenhouse_effect.
- Extinction_event wikiPageWikiLink Holocene.
- Extinction_event wikiPageWikiLink Holocene_extinction.
- Extinction_event wikiPageWikiLink Human_impact_on_the_environment.
- Extinction_event wikiPageWikiLink Hydrogen_sulfide.
- Extinction_event wikiPageWikiLink Ice_age.
- Extinction_event wikiPageWikiLink Impact_event.
- Extinction_event wikiPageWikiLink Insect.
- Extinction_event wikiPageWikiLink Ireviken_event.
- Extinction_event wikiPageWikiLink Isotope_analysis.
- Extinction_event wikiPageWikiLink Jack_Sepkoski.
- Extinction_event wikiPageWikiLink Jurassic.
- Extinction_event wikiPageWikiLink Kačák_Event.
- Extinction_event wikiPageWikiLink Koolasuchus.
- Extinction_event wikiPageWikiLink Large_igneous_province.
- Extinction_event wikiPageWikiLink Late_Devonian_extinction.
- Extinction_event wikiPageWikiLink Lau_event.
- Extinction_event wikiPageWikiLink Lazarus_taxon.
- Extinction_event wikiPageWikiLink Lethality.
- Extinction_event wikiPageWikiLink Life.
- Extinction_event wikiPageWikiLink Light-year.