EUNIS habitat classification 2012 > X - Habitat complexes > X20 - Treeline ecotones

Treeline ecotones

English name: Treeline ecotones

Description (English)

Formations of the timberline of mountains, in which subalpine forests give way to alpine or boreal heaths and scrubs, or to alpine grasslands; they are characterised by a scattering of stunted, gnarled trees punctuating an alpine shrub or grassland environment, by a macromosaic of alpine shrub and grass formations with scattered islands of forest, or by open or clear forest with an undergrowth composed of alpine elements such as ericaceous shrubs. They occupy a narrow belt, varying in altitudinal location according to latitude, exposure and other climatic or edaphic conditions. Component habitats include those of F2 and E4.

Source: EUNIS habitat classification

Quick facts

EUNIS habitat type code X20

Vegetation types

Relation to vegetation types (syntaxa)

Not available

Species mentioned in habitat description

Not available

Other classifications

Classification Code Habitat type name Relationship type
Palaearctic Habitat Classification 200112 95 Treeline ecotones same
CORINE Land Cover 3.2.4. Transitional woodland shrub n/a
Milieux Naturels de Suisse 1998 X COMPLEXE n/a
For relation to plant communities (syntaxa), see Vegetation types

History

Classification Code Habitat type name Relationship type
EUNIS Habitat Classification 200410 X20 Treeline ecotones same
EUNIS Habitat Classification 200308 X20 Treeline ecotones same
EUNIS Habitat Classification 200202 X20 Treeline ecotones same
EUNIS Habitat Classification 199910 X20 Treeline ecotones same
EUNIS Habitat Classification 199811 X21 Treeline ecotones same
EUNIS Habitat Classification 199712 X14 Treeline ecotones same
Palaearctic Habitat Classification 199905 95 Treeline ecotones same
Palaearctic Habitat Classification 1997 95 Treeline ecotones same
Palaearctic Habitat Classification 1996 95   same
Palaearctic Habitat Classification 1993 95   same
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