Subarctic volcanic field

Description (English)

This habitat comprises sparsely vegetated volcanic features such as active volcanos, recently formed lava streams, and older lava fields and rocks, as well as volcanic slopes and plains in the subarctic and arctic regions of Europe, mostly on Iceland and parts of Jan Mayen. The rock surfaces and volcanic soils are only slowly colonised, are nutrient-poor and subject to continuing effects of wind erosion and desiccation. Vascular plants and few and cryptogams are generally sparse but accumulating soil and deptressions benefiting from snow-lie may sustain more extensive vegetation

Source: EUNIS habitat classification

Quick facts

EUNIS habitat type code U61

Vegetation types

Relation to vegetation types (syntaxa)

Not available

Indicator species

Diagnostic species
Constant species
Dominant species
Flowering Plants Salix herbacea
Flowering Plants Galium normanii
Flowering Plants Sagina nivalis
Flowering Plants Saxifraga cespitosa
Flowering Plants Saxifraga oppositifolia
Flowering Plants Salix lanata
Flowering Plants Oxyria digyna
Flowering Plants Koenigia islandica

Diagnostic species occur concentrated in the habitat in question, but are absent or rare in other habitats. They are good positive indicators of the habitat, but they do not need to occur in every location of the habitat.

Species scientific name English common name Species group
Salix herbacea Flowering Plants
Galium normanii Flowering Plants
Sagina nivalis Flowering Plants
Saxifraga cespitosa Flowering Plants
Saxifraga oppositifolia Flowering Plants
Salix lanata Flowering Plants
Oxyria digyna Flowering Plants
Koenigia islandica Flowering Plants
Flowering Plants Salix herbacea
Flowering Plants Saxifraga oppositifolia
Flowering Plants Poa alpina
Flowering Plants Oxyria digyna
Flowering Plants Carex bigelowii
Flowering Plants Thymus serpyllum
Flowering Plants Silene uniflora
Flowering Plants Saxifraga cespitosa
Flowering Plants Sagina nivalis
Flowering Plants Galium normanii
Flowering Plants Festuca vivipara
Flowering Plants Empetrum nigrum
Flowering Plants Betula pubescens
Flowering Plants Arctostaphylos uva-ursi
Flowering Plants Alchemilla alpina

Constant species occur frequently in the habitat, but they may include generalist species that are also frequent in other habitats.

Species scientific name English common name Species group
Salix herbacea Flowering Plants
Saxifraga oppositifolia Flowering Plants
Poa alpina Flowering Plants
Oxyria digyna Flowering Plants
Carex bigelowii Flowering Plants
Thymus serpyllum Flowering Plants
Silene uniflora Flowering Plants
Saxifraga cespitosa Flowering Plants
Sagina nivalis Flowering Plants
Galium normanii Flowering Plants
Festuca vivipara Flowering Plants
Empetrum nigrum Flowering Plants
Betula pubescens Flowering Plants
Arctostaphylos uva-ursi Flowering Plants
Alchemilla alpina Flowering Plants

Dominant species are those that often reach high cover in the habitat, thus determining the habitat physiognomy.

Species scientific name English common name Species group

History

Classification Code Habitat type name Relationship type Comment
EUNIS Habitat Classification 200410 H6.2 Inactive recent volcanic features same
EUNIS Habitat Classification 200410 H6.1 Active volcanic features same
EUNIS Habitat Classification 200308 H6.1 Active volcanic features same
EUNIS Habitat Classification 200308 H6.2 Inactive recent volcanic features same
EUNIS Habitat Classification 200202 H6.2 Inactive recent volcanic features same
EUNIS Habitat Classification 200202 H6.1 Active volcanic features same
EUNIS Habitat Classification 199910 H6.2 Unvegetated lava and ash fields same
EUNIS Habitat Classification 199910 H6.3 Fumaroles, solfataras and mofettes same
EUNIS Habitat Classification 199811 H6.2 Unvegetated lava and ash fields same
EUNIS Habitat Classification 199811 H6.3 Fumaroles, solfataras and mofettes same
EUNIS Habitat Classification 199712 H6.2 Unvegetated lava and ash fields same
EUNIS Habitat Classification 199712 H6.3 Fumaroles, solfataras and mofettes same
Palaearctic Habitat Classification 199905 66.6 Fumaroles, solfataras and mofettes same
Palaearctic Habitat Classification 1997 66.6 Fumaroles, solfataras and mofettes same
Palaearctic Habitat Classification 1996 66.6   same
Palaearctic Habitat Classification 1993 66.6   same
CORINE Biotopes Classification 1991 66.6   same
European Environment Agency (EEA)
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