a (11) | b (24) | c (19) | d (14) | e (15) | f (13) | g (2) | h (8) | i (7) | l (16) | m (11) | n (25) | o (6) | p (5) | r (21) | s (57) | t (8) | u (10) | v (6) | w (19) | y (1)
Titlesort descending Summary Tags
seepage This wide ranging assemblage occupies a range of seepage types from shaded seepages to open calcareous seepages. SAT
Seepage fidelity score - acid-neutral Seepage fidelity score for species associated with acid-neutral seepages quality index
Seepage fidelity score - calcareous Seepage fidelity score for species associated with calcareous seepages quality index
Seepage fidelity score - slumping cliff Seepage fidelity score for species associated with slumping cliff seepages quality index
Seepage fidelity score - stable cliff Seepage fidelity score for species associated with stable cliff seepages quality index
Seepage fidelity score - woodland Seepage fidelity score for species associated with woodland seepages quality index
seepages A seepage is a moist or wet place where water, usually groundwater, reaches the ground surface from an underground aquifer. resource
shaded seepage Shaded seepages are found under alder or willow (sallow) woodland in valley bottoms, and under birch or sometimes alder-ash woodland on hillsides. The soil is constantly saturated and usually contains a large proportion of organic matter giving rise to deep ooze. resource
shaded woodland floor Found in closed canopy woodland and scrub, where it is separated vertically rather than horizontally from arboreal assemblage types. It is associated with low levels of disturbance. habitat
shadiness Description of the amount of shade required within a woodland, currently classed as light or heavy habitat
shallow freshwater pond A pond (generally up to 2ha in area) is a body of standing water, either natural or man-made, that is usually smaller than a lake . Freshwater ponds are those that are not affected by a high salinity. resource
shallow water Standing water that tends to be just a few centimetres deep. As such it is often a lot warmer, favouring plant growth as well augmenting animal activity. resource
shingle Rocky substrates larger than sand, and formed of pebbles and stones. Often found on beaches. Note - different from riparian shingle that is found next to rivers. resource
shingle banks This assemblage is dependent on repeated turnover of coarse grained sediment by spates and so is sensitive to management of river channels, river catchments and changes in rainfall patterns. SAT
short sward & bare ground In lowland habitats where disturbance removes vegetation to create areas of bare or sparsely vegetated ground. habitat
slow flow Water flow that does not have the energy to scour away vegetation, often leaving fringing vegetation. Silt deposition is common. Associated with canals and sluggish rivers. resource
slow-flowing rivers The assemblage type is found in slow-flowing rivers on silty substrata, generally in lower and middle catchments. SAT
snail shells Empty snail shells utilised by non-molluscan invertebrates. resource
snow bed An area of late-lying or near permanent snow and ice packs that cover the higher mountain slopes throughout the year. resource
soft rock cliff seepage Slumping cliff areas can sometimes expose groundwater sources which then form seepages down the cliff face. These vary from little more than constantly damp ground surfaces, to more significant streamlets with plant communities which can include Phragmites and Juncus. resource
soil & roots Species living deep within the soil. They may be free living, or directly associated with the roots of plants. resource
soil humidity Categorises species associated with different levels of soil humidity: dry, damp or wet (or variable). subheading
soil type Contains sand, windblown sand, clay, ball clay, calcareous, chalk and limestone clay soil types. subheading
solitary wasp nests Species that are associated with solitary wasp nests within dead wood (not including the solitary wasps themselves). The wasp nests are often within pre-existing beetle bore-holes. resource
Species Quality Indices A measure of the number of rare species in a sample, divided by the total number of species in the sample. general glossary
Spermatophytina A grouping of plants that includes all the seed-bearing species, as opposed to the 'cryptogams' such as mosses and ferns that reproduce via spores. general glossary
Sphagnum bog An assemblage type associated with Sphagnum bogs, usually in acidic conditions and largely restricted to rain-fed (ombrotrophic) or spring-fed (soligenous) mires. SAT
sphagnum/moss lawn Carpets of moss (often Sphagnum) found in permanently, often very acidic, wet habitats. These may be formed into hummocks, or semi-submerged at the edge of a waterbody. resource
springs & caves Fully subterranean and surface transition zones with flowing water. Species in this zone are often flushed out from the aquifer onto the surface near the source. resource
SQS Species quality score general glossary
stones, boulders, shingle and scree Larger sized boulders, rocks and bare stone screes, frequently associated with mountain slopes and strong erosive forces, but offering a sheltered matrix. resource
stored food products Synanthropic species associated with stored food products. label
stream & river margin The assemblage is found along rivers and streams passing though floodplains with sand as a major component, and appears to be restricted to the west and north of Britain. SAT
stumps Tree stumps left within the ground. resource
sub decay Species associated with subterranean tree roots that have been affected by some form of decay. resource
sub live Species associated with living subterranean tree roots. resource