Home›Species›Ecosystem›LlanosEcosystemLlanosSavanna and GrasslandReference and ClassificationVerifiedA tropical grassland plain of about 375,786 square kilometers spanning Colombia and Venezuela east of the Andes, bounded by the Venezuelan Coastal Range to the north and the Guiana Highlands to the southeast. Fed by the Orinoco River system, the Llanos alternates a wet season running April to November with a sharp dry season, producing seasonal wetlands within open grassland and gallery forest. Capybaras, jaguars, giant otters, the endemic Llanos long-nosed armadillo and around 70 species of water birds depend on the flood pulse. Decades of cattle ranching, rice and maize cultivation, introduced grasses, deliberate burning and oil and gas development have reshaped the ecoregion, of which about 28 percent lies within protected areas. This description is adapted from Wikipedia contributors under CC BY-SA 4.0; changes were made. https://creativecommons.org/licenses/by-sa/4.0/FactsLlanosConnectionsIn the Other AtlasesSourcesTake a Related QuizComments (0)Reader Challenges (0)FactsClassificationBiogeographic RealmWell-attestedNeotropic 1Area (sq km)Well-attested375,786 1LlanosFilter Results9 entriesCommon GroupAllCrocodilians (2)Herons, Egrets And Allies (1)TaxonomyAllArtiodactyla (1)Caiman (1)Crocodylus (1)Herpailurus (1)Leopardus (1)Procyonidae (1)Puma (1)Rodentia (1)Threskiornithidae (1)HabitatAllBog (1)Desert (1)Freshwater (1)Grassland (1)Lake (1)Mangrove Forest (2)River (3)Tropical Rainforest (2)Conservation StatusAllCritically Endangered (1)Least Concern (7)Near Threatened (1)Everyday GroupAllCrocodilians (2)Herons, Egrets And Allies (1)DietAllCarnivore (5)Herbivore (2)Insectivore (1)Piscivore (1)Population TrendAllDecreasing (1)Stable (1)System (Realm)AllFreshwater (4)Terrestrial (8)ThreatsAllBiological Resource Use (1)Relationship to PeopleAllAgricultural or Structural Pest (2)Hunted or Fished (5)Invasive or Introduced Species (1)Kept as Pets (1)Living or ExtinctAllYes (8)Where It LivesAllArgentina (3)Belgium (4)Belize (3)Bolivia (4)Brazil (6)Canada (3)Chile (1)Colombia (9)Costa Rica (3)Croatia (1)Cuba (2)Czechia (1)Ecuador (7)El Salvador (3)Finland (1)Germany (1)Guatemala (3)Guyana (5)Honduras (3)Jamaica (1)Mexico (5)Netherlands (1)Nicaragua (3)North America (6)Norway (3)Panama (3)Paraguay (2)Peru (3)Poland (2)Russia (1)Saint Kitts and Nevis (1)Serbia (1)South Africa (1)South America (9)Spain (1)Suriname (4)Sweden (1)Thailand (1)Trinidad and Tobago (1)United Arab Emirates (1)United Kingdom (1)United States (6)Uruguay (3)Venezuela (9)Show ResultsBrowseCompareSelect all 9CapybaraLlanosCougarLlanosCrab-eating RaccoonLlanosJaguarundiLlanosOcelotLlanosOrinoco CrocodileLlanosScarlet Ibis (Eudocimus ruber)LlanosSpectacled CaimanLlanosWhite-tailed DeerLlanosConnectionsDemonstratesWater Cycle, Natural Phenomena Well-attested Source Encyclopaedia Britannicatier 1HostsCapybara, Species Well-attested Source World Wildlife FundCougar, Species Well-attested Source Cougar (Wikipedia)tier 2Crab-eating Raccoon, Species Well-attested Source Animal Diversity Web, University of Michigan Museum of Zoology: Procyon cancrivorus (Animal Diversity Web)Jaguarundi, Species Well-attested Source Wikipedia: JaguarundiOcelot, Species Well-attested Source Ocelot (Wikipedia)tier 2Orinoco Crocodile, Species Well-attested Source Wikipedia: Orinoco Crocodiletier 2Scarlet Ibis (Eudocimus ruber), Species Well-attested Source Wikidata: Spectacled CaimanAdditional Source Llanos (Wikipedia)Article texttier 2Spectacled Caiman, Species Well-attested Source Wikidata: Spectacled CaimanAdditional Source Llanos (Wikipedia)Article texttier 2White-tailed Deer, Species Well-attested Source White-tailed Deer (Wikipedia)tier 2In BiomeFlooded Grassland and Savanna, Biomes Well-attested Source World Wildlife FundIn the Other AtlasesFound InColombiaAlso in Geography Atlas: where this subject is found.VenezuelaAlso in Geography Atlas: where this subject is found.Sources1. Llanos (Wikipedia)tier 2WikipediaEconomy sectionDecades of extensive cattle raising has altered the ecology of the Llanos. Grasslands and savannas are frequently burned to make them more suitable for grazing and eliminate trees and shrubs.Biogeographic realm: neotropic (derived from location stated in entity description)Hosts: Scarlet Ibis (Eudocimus ruber), Article textThe wetlands support around 70 species of water birds, including the scarlet ibis.Hosts: Spectacled Caiman, Article textNative reptiles include the Orinoco crocodile (Crocodylus intermedius), spectacled caiman (Caiman crocodilus), Green anaconda (Eunectes murinus), and Arrau turtle (Podocnemis expansa).View the SourceWorld Wildlife FundWorld Wildlife FundIn Biome: Flooded Grassland and SavannaHosts: CapybaraView the SourceEncyclopaedia Britannicatier 1Encyclopaedia Britannica, Inc.Demonstrates: Water CycleView the SourceWhite-tailed Deer (Wikipedia)tier 2Wikimedia FoundationHosts: White-tailed Deer, Wikipedia intro: "inhabit many different ecosystems, from arid grasslands to the Amazon and Orinoco basins; from the Llanos to the high-elevation terrain of the Andes."View the SourceCougar (Wikipedia)tier 2Wikimedia FoundationHosts: Cougar, Distribution and habitatQuote, Hosts: Cougar, Distribution and habitatIn Colombia, it was recorded in a palm oil plantation close to a riparian forest in the Llanos Basin, and close to water bodies in the Magdalena River Valley.View the SourceOcelot (Wikipedia)tier 2Wikimedia FoundationHosts: Ocelot, In TexasQuote, Hosts: Ocelot, In TexasIn Texas and northeastern Mexico, ocelot populations have reduced drastically; as of 2014, the population in Texas was estimated to be 50-80 individuals.View the SourceWikipedia: Orinoco Crocodiletier 2WikipediaHosts: Orinoco Crocodile, CharacteristicsQuote, Hosts: Orinoco Crocodile, CharacteristicsThe Orinoco crocodile can be recognised by its relatively long snout, which is narrower than that of the somewhat similar-looking American crocodile.View the SourceWikipedia: JaguarundiHosts: Jaguarundi, Behavior and ecologyQuote, Hosts: Jaguarundi, Behavior and ecologyPopulation densities are typically low, around 0.01 to 0.05/km2 (0.026 to 0.129/sq mi) in Brazil, though Tamaulipas (Mexico) and the Llanos in Costa Rica and Venezuela have recorded figures as high as 0.2/km2 (0.52/sq mi).View the SourceAnimal Diversity Web, University of Michigan Museum of Zoology: Procyon cancrivorus (Animal Diversity Web)Animal Diversity Web, University of Michigan Museum of ZoologyHosts: Crab-eating Raccoon, Geographic RangeQuote, Hosts: Crab-eating Raccoon, Geographic RangeProcyon cancrivorus makes use of habitats ranging from the forest of Ilanos, to the xeric chaco vegetation, and even the Amazon rainforests.View the SourceTake a Related QuizWetlands, Reefs and Deltas: New EcosystemsCovers this kind of entry.Comments (0)No comments yet. 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