EUNIS habitat type hierarchical view (marine version 2022 & terrestrial version 2021)
The EUNIS habitat classification review is on-going. Four groups are pending review: Inland waters, Wetlands, Constructed, industrial and other artificial habitats and Complexes.-
M : Marine benthic habitats (MA-MG)
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MH : Pelagic water column
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MJ : Ice-associated marine habitats
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N : Coastal habitats
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R : Grasslands and lands dominated by forbs, mosses or lichens
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S : Heathland, scrub and tundra
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T : Forest and other wooded land
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U : Inland habitats with no or little soil and mostly with sparse vegetation
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U1 : Terrestrial underground caves, cave systems, passages and waterbodies
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U2 : Screes
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U3 : Inland cliffs, rock pavements and outcrops
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U31 : Boreal and arctic siliceous inland cliff
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U32 : Temperate high-mountain siliceous inland cliff
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U33 : Temperate, lowland to montane siliceous inland cliff
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U331 : Middle European lowland to montane siliceous cliffs
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U332 : Helleno-Carpatho-Balkanic Silene siliceous cliffs
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U3321 : Southern Carpathian campion siliceous cliffs
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U3322 : Carpatho-Balkano-Rhodopide campion siliceous cliffs
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U3323 : Pelagonide campion siliceous cliffs