RDB K |
Red Data Book category K (RDB K) - Insufficiently Known |
status |
RE |
Extinct in Great Britain |
status |
RE (European) |
Extinct in Europe |
status |
red rot |
Fungal rot that does not destroy lignin, leaving a crumbly red-brown material. |
resource |
reed-fen & pools |
This assemblage type is mainly restricted to topogenous mires and fens. |
SAT |
Reported condition |
Reported condition (favourable or unfavourable) of the assemblage, with level of confidence determined by ISIS compliance |
general glossary |
Resources |
The third level of the Pantheon hierarchy, showing resources (such as structural features and food sources) considered important for species to complete their life cycles. |
general glossary |
rich flower resource |
This is a resource-based assemblage type that is expressed across a large range of habitats. |
SAT |
riparian sand |
The assemblage type is found on soft, bare or sparsely vegetated exposed riverine sediments ranging from fine sand mixed with silt to coarse sand mixed with cobbles. |
SAT |
riparian sand |
Soft, bare or sparsely vegetated exposed riverine sediments ranging from fine sand mixed with silt to coarse sand mixed with cobbles. |
resource |
riparian shingle |
Exposed coarse-grained riverine sediments ranging from gravel to cobbles and small boulders.
|
resource |
rocky ground |
Associated with rocky ground under trees. |
resource |
rocky shore |
A habitat defined as the solid mineral interface between the land and the sea. It includes rock pools, crevices, vertical cliffs and barnacles under tidal influence and is subject to severe weathering by the sea. |
habitat |
roots & underground wood |
Associated with decaying roots and in the bases of decaying trunks or stumps, or with up-ended root plates. |
resource |
rot hole detritus |
Species associated with decaying organic matter within rot holes. |
resource |
rot holes |
Cavities within the heartwood, often created where lateral branches have died and broken off. |
resource |
running water |
Habitats along stretches of rivers, streams and stronger spring-fed seepages where water action removes or retards vegetation, scours sediment to reveal bedrock or boulders or deposits fresh shingle, sand or silt. |
habitat |
S41 Priority Species |
Priority species listed under Section 41 (S41) of the 2006 Natural Environment and Rural Communities (NERC) Act. |
status |
saline lagoon |
A relatively rare aquatic habitat heavily influenced by sea water but not wave action. Subjected to evaporation or precipitation makes them vary between hyper-saline and weakly saline throughout the season. |
habitat |
saline silt |
Silts in coastal situations that are strongly influenced by saline water. |
resource |
saltmarsh |
A habitat dominated by plants and covered by saltwater at high tide. They are restricted to less exposed shorelines, characterised by net deposition of fine sediment. However, they are still defined by levels of salinity and tidal disturbance. |
habitat |
saltmarsh & transitional brackish marsh |
The assemblage type is mainly found in areas that are inundated by spring tides or storm surges. |
SAT |
saltmarsh vegetation |
Terrestrial plants including reeds, grasses, herbs and rushes that tend to form dense stands, stand tall and root in wet soil and/or water. |
resource |
sand |
A granular material consisted of finely divided rock particles often found underlying heathland, dunes and some grassland systems and can be interspersed with larger rocks and cobbles. |
resource |
sandy beach |
A habitat which includes the drift line and immediate upper intertidal and supralittoral zones of seashore dominated by sand and, to a lesser extent, shingle. The habitat is saline and subject to tidal disturbance, augmented by storm surges at irregular intervals. |
habitat |
sandy beaches |
The assemblage type is found on sandy shores subject to tidal disturbance. |
SAT |
sandy river |
An in-channel, submerged habitat with a sandy river bed. |
resource |
sap runs (adult) |
Species that feed on sap as adults. |
resource |
sapwood & bark decay |
Species associated with the outer layers of decaying wood in various situations, on both young and old trees. |
resource |
scorched wood |
A small number of species are only known from fire-damaged wood, or are most regularly found in this situation. Others are associated with bonfire sites. |
resource |
scrub |
A sub-woodland tree resource, formed of either young tree species, or those forming woodland understory in woodland, either as woodland edge or as an invading resource into other habitats. It has value in offering shelter, micro-climates, and additional structure to invertebrates, but can diminish other resources if unchecked. |
resource |
scrub at wood edge/glade |
Species only associated with scrub and understorey at the wood edge or within a glade where there is direct sunlight but the conditions are sheltered. |
resource |
scrub edge |
The assemblage type is found where scrub or woodland grades into or is interspersed with open areas of grassland, heathland or early successional vegetation types. |
SAT |
scrub-heath & moorland |
The assemblage type is found on nutrient-poor, acid soils where herbaceous or dwarf shrub vegetation is dominant, although trees and taller shrubs can be an important component of the overall habitat. |
SAT |
sea cliff |
Hard rocks forming vertical and near vertical cliff faces at the coast, supporting invertebrates that utilise rock crevices and bare ground, as well as associated thin soils and open vegetation at the cliff top. |
habitat |
seeds |
Species feeding on the seeds of the plant. |
resource |