title: Identifying ozone-sensitive communities of (semi-)natural vegetation suitable for mapping exceedance of critical levels.
abstract: Using published data on the responses of individual species to ozone, 54 EUNIS (European Nature Information System) level 4 communities with six or more ozone-sensitive species (%OS) and c. 20% or more species tested for ozone sensitivity, were identified as potentially ozone-sensitive. The largest number of these communities (23) was associated with Grasslands, with Heathland, scrub and tundra, and Mires, bogs and fens having the next highest representation at 11 and 8 level 4 communities each respectively. Within the grasslands classification, E4 (Alpine and sub-alpine grasslands), E5 (Woodland fringes and clearings) and E1 (Dry grasslands) were the most sensitive with 68.1, 51.6 and 48.6%OS respectively. It is feasible to map the land-cover for these and other communities at level 2, but it may not be currently possible to map the land-cover for all communities identified to be ozone-sensitive at levels 3 and 4.
authors.affiliation: Centre for Ecology and Hydrology, Deiniol Road, Bangor LL57 2UP, UK. gmi@ceh.ac.uk
authors.forename: G
authors.initials: G
authors.lastname: Mills
authors.forename: F
authors.initials: F
authors.lastname: Hayes
authors.forename: M L M
authors.initials: ML
authors.lastname: Jones
authors.forename: S
authors.initials: S
authors.lastname: Cinderby
mesh_terms: D000531:Altitude; D044822:Biodiversity; D002980:Climate; D017753:Ecosystem; D004781:Environmental Exposure / Q000009:adverse effects; D004784:Environmental Monitoring / Q000379:methods; D005060:Europe; D006863:Hydrogen-Ion Concentration; D010083:Oxidants, Photochemical / Q000633:toxicity*; D010126:Ozone / Q000633:toxicity*; D010944:Plants / Q000187:drug effects*; D006109:Poaceae / Q000187:drug effects; D018570:Risk Assessment / Q000379:methods; D012987:Soil; D014197:Trees / Q000187:drug effects; D014867:Water; D053833:Wetlands
chemical_list: D010083:Oxidants, Photochemical; D012987:Soil; D014867:Water; D010126:Ozone