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- Cascade_effect_(ecology) abstract "An ecological cascade effect is a series of secondary extinctions that is triggered by the primary extinction of a key species in an ecosystem. Secondary extinctions are likely to occur when the threatened species are: dependent on a few specific food sources, mutualistic (dependent on the key species in some way), or forced to coexist with an invasive species that is introduced to the ecosystem. Species introductions to a foreign ecosystem can often devastate entire communities, and even entire ecosystems. These exotic species monopolize the ecosystem’s resources, and since they have no natural predators to decrease their growth, they are able to increase indefinitely. Olsen et al. showed that exotic species have caused lake and estuary ecosystems to go through cascade effects due to loss of algae, crayfish, mollusks, fish, amphibians, and birds. However, the principal cause of cascade effects is the loss of top predators as the key species. As a result of this loss, a dramatic increase (ecological release) of prey species occurs. The prey is then able to overexploit its own food resources, until the population numbers decrease in abundance, which can lead to extinction. When the prey’s food resources disappear, they starve and may go extinct as well. If the prey species is herbivorous, then their initial release and exploitation of the plants may result in a loss of plant biodiversity in the area. If other organisms in the ecosystem also depend upon these plants as food resources, then these species may go extinct as well. An example of the cascade effect caused by the loss of a top predator is apparent in tropical forests. When hunters cause local extinctions of top predators, the predators’ prey's population numbers increase, causing an overexploitation of a food resource and a cascade effect of species loss.".
- Cascade_effect_(ecology) wikiPageID "11128986".
- Cascade_effect_(ecology) wikiPageLength "4771".
- Cascade_effect_(ecology) wikiPageOutDegree "34".
- Cascade_effect_(ecology) wikiPageRevisionID "644473702".
- Cascade_effect_(ecology) wikiPageWikiLink Alga.
- Cascade_effect_(ecology) wikiPageWikiLink Algae.
- Cascade_effect_(ecology) wikiPageWikiLink Amphibian.
- Cascade_effect_(ecology) wikiPageWikiLink Biodiversity.
- Cascade_effect_(ecology) wikiPageWikiLink Category:Doomsday_scenarios.
- Cascade_effect_(ecology) wikiPageWikiLink Category:Ecology_terminology.
- Cascade_effect_(ecology) wikiPageWikiLink Competition_(biology).
- Cascade_effect_(ecology) wikiPageWikiLink Crayfish.
- Cascade_effect_(ecology) wikiPageWikiLink Ecological_release.
- Cascade_effect_(ecology) wikiPageWikiLink Ecosystem.
- Cascade_effect_(ecology) wikiPageWikiLink Estuary.
- Cascade_effect_(ecology) wikiPageWikiLink Extinction.
- Cascade_effect_(ecology) wikiPageWikiLink Generalist_and_specialist_species.
- Cascade_effect_(ecology) wikiPageWikiLink Greenpeace.
- Cascade_effect_(ecology) wikiPageWikiLink Herbivore.
- Cascade_effect_(ecology) wikiPageWikiLink Herbivorous.
- Cascade_effect_(ecology) wikiPageWikiLink IUCN.
- Cascade_effect_(ecology) wikiPageWikiLink International_Union_for_Conservation_of_Nature.
- Cascade_effect_(ecology) wikiPageWikiLink Invasive_species.
- Cascade_effect_(ecology) wikiPageWikiLink Kelp.
- Cascade_effect_(ecology) wikiPageWikiLink Kelp_forest.
- Cascade_effect_(ecology) wikiPageWikiLink Mollusca.
- Cascade_effect_(ecology) wikiPageWikiLink Mollusk.
- Cascade_effect_(ecology) wikiPageWikiLink Mutualism_(biology).
- Cascade_effect_(ecology) wikiPageWikiLink Organism.
- Cascade_effect_(ecology) wikiPageWikiLink Overexploit.
- Cascade_effect_(ecology) wikiPageWikiLink Overexploitation.
- Cascade_effect_(ecology) wikiPageWikiLink Overexploited.
- Cascade_effect_(ecology) wikiPageWikiLink Predation.
- Cascade_effect_(ecology) wikiPageWikiLink Predator.
- Cascade_effect_(ecology) wikiPageWikiLink Prey.
- Cascade_effect_(ecology) wikiPageWikiLink Sea_otter.
- Cascade_effect_(ecology) wikiPageWikiLink Sea_otters.
- Cascade_effect_(ecology) wikiPageWikiLink Sea_urchin.
- Cascade_effect_(ecology) wikiPageWikiLink Species.
- Cascade_effect_(ecology) wikiPageWikiLink Trophic_cascade.
- Cascade_effect_(ecology) wikiPageWikiLink Tropical_and_subtropical_moist_broadleaf_forests.
- Cascade_effect_(ecology) wikiPageWikiLink Tropical_forests.
- Cascade_effect_(ecology) wikiPageWikiLink World_Wide_Fund_for_Nature.
- Cascade_effect_(ecology) wikiPageWikiLinkText "Cascade effect (ecology)".
- Cascade_effect_(ecology) wikiPageWikiLinkText "Cascade effect".
- Cascade_effect_(ecology) wikiPageWikiLinkText "Knock-on effects".
- Cascade_effect_(ecology) wikiPageWikiLinkText "cascade effects".
- Cascade_effect_(ecology) wikiPageWikiLinkText "ecological definition of cascade effects".
- Cascade_effect_(ecology) hasPhotoCollection Cascade_effect_(ecology).
- Cascade_effect_(ecology) wikiPageUsesTemplate Template:Aquatic_ecosystem_topics.
- Cascade_effect_(ecology) wikiPageUsesTemplate Template:Modelling_ecosystems.
- Cascade_effect_(ecology) wikiPageUsesTemplate Template:Portal.
- Cascade_effect_(ecology) wikiPageUsesTemplate Template:Reflist.
- Cascade_effect_(ecology) subject Category:Doomsday_scenarios.
- Cascade_effect_(ecology) subject Category:Ecology_terminology.
- Cascade_effect_(ecology) hypernym Series.
- Cascade_effect_(ecology) type TelevisionShow.
- Cascade_effect_(ecology) comment "An ecological cascade effect is a series of secondary extinctions that is triggered by the primary extinction of a key species in an ecosystem. Secondary extinctions are likely to occur when the threatened species are: dependent on a few specific food sources, mutualistic (dependent on the key species in some way), or forced to coexist with an invasive species that is introduced to the ecosystem.".
- Cascade_effect_(ecology) label "Cascade effect (ecology)".
- Cascade_effect_(ecology) sameAs Ahelväljasuremine.
- Cascade_effect_(ecology) sameAs m.02r0_gj.
- Cascade_effect_(ecology) sameAs Каскадний_ефект_(екологія).
- Cascade_effect_(ecology) sameAs Q5048184.
- Cascade_effect_(ecology) sameAs Q5048184.
- Cascade_effect_(ecology) wasDerivedFrom Cascade_effect_(ecology)?oldid=644473702.
- Cascade_effect_(ecology) isPrimaryTopicOf Cascade_effect_(ecology).