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UKBI - Spring Index
Published date 2024-12-10Last updated: 2024Latest data available: 2023IntroductionThis is a context indicator and is not assessed; it is shown to highlight a biological response to climate change and a potential pressure on b...
Chief Executive
Published date 2025-05-20The main responsibilities of this post are to:Manage JNCC on a day-to-day basis and oversee the delivery of its work.Act as Accounting Officer for JNCC, with responsibility for the efficient and effec...
Alpine and subalpine calcareous grasslands
Published dateNatural and semi-natural grassland formations Description and ecological characteristics This habitat occurs on lime-rich soils and consists of short, often grazed, species-rich mixtures of mountain a...
Spartina swards (Spartinion maritimae)
Published dateMarine, coastal and halophytic habitats Description and ecological characteristics Cord-grass Spartina spp. colonises a wide range of substrates, from very soft muds to shingle, in areas sheltered fro...
Perennial vegetation of stony banks
Published dateMarine, coastal and halophytic habitats Description and ecological characteristics Shingle structures develop when a sequence of foreshore beaches is deposited at the limit of high tide. More permanen...
IR.FIR.SG.CrSpAsAn Anemones, including Corynactis viridis, crustose sponges and colonial ascidians on very exposed or wave surged vertical infralittoral rock
Published date 2015-03Vertical very exposed and exposed bedrock gullies, tunnels and cave entrances subject to wave-surge dominated by sponge crusts such as Clathrina coriacea, Myxilla incrustans, Pachymatisma johnstonia a...
IR.HIR.KSed.ProtAhn Polyides rotunda, Ahnfeltia plicata and Chondrus crispus on sand-covered infralittoral rock
Published date 2015-03Low-lying rock surrounded by mobile sand and often subject to burying by the sand, with a turf of resilient red seaweeds Chondrus crispus, Polyides rotunda and Ahnfeltia plicata typically protruding t...
LR.FLR.CvOv Littoral caves and overhangs
Published date 2015-03Where caves and overhangs occur on rocky shores, the shaded nature of the habitat diminishes the amount of desiccation suffered by biota during periods of low tides which allows certain species to pro...
IR.MIR.KR.Ldig.Ldig Laminaria digitata on moderately exposed sublittoral fringe bedrock
Published date 2015-03Exposed to sheltered sublittoral fringe bedrock dominated by a dense canopy of Laminaria digitata, often with a wide range of filamentous and foliose red seaweeds beneath. The most frequently occurrin...
SS.SSa.CFiSa Circalittoral fine sand
Published date 2015-03Clean fine sands with less than 5% silt/clay in deeper water, either on the open coast or in tide-swept channels of marine inlets in depths of over 15-20 m. The habitat may also extend offshore and is...