|Endangered in Great Britain
|Endangered in Europe
|This assemblage type is found on the surface of trunks and branches of trees and shrubs. It includes grazers of epiphytes such as algae, lichens and mosses, as well as their predators and parasites. Some epiphyte feeders are also found on epiphytes growing on rocks and boulders.
|Plants and lichens that grow upon trees.
|Chalk and chalk covered by a thin layer of moss and / or lichen, but with the substrate being particularly obvious.
|Clay and clay covered by a thin layer of moss and / or lichen, but with the substrate being particularly obvious.
|exposed riverine sediments
|Exposed riverine sediments (ERS) are present in the shoals, bars and spits present in river channels which are periodically exposed during periods of normal or lower than average flow. The sediments range in size from cobbles and boulders to sand and fine silts.
|Exposed riverine sediments fidelity score - Coleoptera
|Exposed riverine sediments fidelity score for beetles (Coleoptera)
|Exposed riverine sediments fidelity score - Diptera
|Exposed riverine sediments fidelity score for flies (Diptera)
|Sand and sand covered by a thin layer of moss and / or lichen, but with the substrate being particularly obvious.
|A feature of coastal situations where wind and salt blast on rocky coastal cliffs combine with shallow freely-draining soils to restrict establishment of plants along exposed cliff edges.
|species fomerly existing as native populations but now considered extinct
|Listed as Red Data Book Appendix (RDB app.) - Extinct