A living guide to Kauaʻi
Ecosystems of Kauaʻi
Explore the island’s native and introduced species, habitats, watersheds and conservation work. Each record connects its description, images and sources with the interactive Atlas.
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Coastal dry shrubland & grassland
Not applicable
Dry, wind- and salt-exposed coastal vegetation system above active shorelines.
Lowland dry forest & shrubland
Not applicable
Low-elevation dry woody system structured by water limitation and disturbance.
Lowland mesic forest & shrubland
Not applicable
Intermediate-moisture lowland woody system bridging dry and wet Kauaʻi landscapes.
Lowland wet forest & shrubland
Not applicable
High-rainfall lowland forest/shrubland tightly coupled to perennial streams and riparian systems.
Montane mesic forest & shrubland
Not applicable
Upland mesic forest/shrubland including koa–ʻōhiʻa communities documented on Kauaʻi.
Montane wet forest & shrubland
Not applicable
High-rainfall upland forest/shrubland forming a major headwater and endemic-biodiversity system.
Montane bog & dwarf wet shrubland
Not applicable
Waterlogged upland bog/dwarf wet-shrub system characteristic of the Alakaʻi.
Sea-cliff & wet-cliff ecosystem
Not applicable
Steep cliff system with strong exposure/seepage gradients and specialized biota.
Perennial stream ecosystem
Not applicable
Continuously flowing freshwater system linking headwaters to estuaries and the sea.
Intermittent stream ecosystem
Not applicable
Intermittent/ephemeral channels providing event-driven terrestrial–freshwater–coastal connectivity.
Riparian corridor ecosystem
Not applicable
Vegetated stream-edge/floodplain corridor regulating shade, banks, organic inputs and habitat connectivity.
Freshwater marsh & palustrine wetland
Not applicable
Shallow freshwater wetland with emergent vegetation, open-water patches and saturated soils.
Forested wetland & swamp ecosystem
Not applicable
Woody freshwater wetland/swamp in saturated lowlands or floodplains.
Spring & seep groundwater-dependent ecosystem
Not applicable
Spring/seep ecosystem where aquifer discharge sustains surface/coastal biota and connects subsurface hydrology to living systems.
Estuary / muliwai ecosystem
Not applicable
Brackish river-mouth/lower-channel system where stream, groundwater and marine waters mix.
Brackish coastal wetland & lagoon ecosystem
Not applicable
Shallow coastal wetland/lagoon with brackish conditions created by marine, groundwater, rain and/or stream inputs.
Sandy beach & dune ecosystem
Not applicable
Dynamic sand-sharing beach/dune system buffering the coast and supporting specialized coastal biota.
Rocky intertidal & tidepool ecosystem
Not applicable
Rocky shoreline/tidepool system alternately submerged and exposed by tides and waves.
Coral reef & colonized hardbottom ecosystem
Not applicable
Coral reef/hardbottom system structured by substrate, depth, exposure and water quality.
Reef flat, backreef & lagoon mosaic
Not applicable
Shallow reef-flat/backreef/lagoon mosaic of hardbottom, sand, rubble and vegetation.
Nearshore soft-bottom sand & mud ecosystem
Not applicable
Unconsolidated nearshore sand/mud system supporting infauna, benthic feeders and sediment exchange.
Macroalgal-dominated submerged vegetation ecosystem
Not applicable
Nearshore system where macroalgae form dominant cover/canopy and distinct habitat/food-web structure.
Seagrass & rooted submerged-vegetation ecosystem
Not applicable
Rooted submerged-vegetation system recognized in Hawaiʻi benthic classifications; Kauaʻi extent is conservatively unresolved.
Nearshore pelagic coastal-water ecosystem
Not applicable
Nearshore water-column system connecting benthic habitats, estuaries, reefs and open ocean.
Limestone cave & subterranean karst ecosystem
Not applicable
Limestone cave/karst system with darkness, buffered microclimate, groundwater/seep interfaces and specialized cave biota.
Offshore islet coastal & seabird ecosystem
Not applicable
Small-islet system where coastal vegetation, seabird colonies, invertebrates and adjacent marine waters are tightly coupled.
Loʻi kalo wetland agroecosystem
Not applicable
Managed wetland agroecosystem built around loʻi kalo, ʻauwai and associated wetland/riparian habitat.
Managed conservation wetland ecosystem
Not applicable
Wetland whose hydroperiod, vegetation and/or predator regime are actively managed for conservation.
Agricultural & pasture mosaic ecosystem
Not applicable
Human-modified mosaic of pasture, crops, orchards, fallow fields, hedgerows and remnant vegetation affecting conservation pathways.
Reservoir, ditch & canal aquatic system
Not applicable
Engineered standing/flowing-water network redistributing water and sometimes functioning as habitat/pathway.
