EUNIS habitat classification 2012 amended 2019 > D - Mires, bogs and fens > D2 - Valley mires, poor fens and transition mires > D2.3 - Transition mires and quaking bogs

Transition mires and quaking bogs

English name: Transition mires and quaking bogs

Description (English)

Incompletely terrestrialized wetlands occupied by peat-forming vegetation with acid groundwater or (for vegetation rafts) acid underlying pool or lake water. Characteristic species are Calla palustris, Carex chordorrhiza, Carex diandra, Carex heleonastes, Carex lasiocarpa, Carex limosa, Carex rostrata, Menyanthes trifoliata, Potentilla palustris, Rhynchospora alba, Scheuchzeria palustris. Included are rafts of Sphagnum and Eriophorum (D2.38) and quaking rafts of Molinia caerulea (D2.3D). Excluded are stands of vegetation fringing water bodies (C3.2) unless the vegetation raft is sufficiently extensive to count as a habitat in its own right.

Source:
EUNIS habitat classification
Interpretation Manual of the habitats targeted by Resolution No. 4

Quick facts

EUNIS habitat type	code D2.3
Bern Convention	Resolution 4 habitat type (used for designation of Emerald sites)
Relation to	Annex I habitat types (EU Habitats Directive)

Legal status

Mentioned in the following international legal instruments and agreements

Legal text	Annex	More information
Convention on the conservation of European wildlife and natural habitats (Bern Convention)	Revised Annex I of Resolution 4 (1996) of the Bern Convention on endangered natural habitats types using the EUNIS habitat classification (year of revision 2014)	https://wcd.coe.int/ViewDoc....ckColorLogged=FDC864 Resolution No. 4 (1996) of the Bern Convention lists endangered natural habitats requiring specific conservation measures [and the designation of Areas of Special Conservation Interest (ASCIs) forming the Emerald network]

Relation to other habitat types mentioned in legal instruments

Legal text	Annex	Name in legal text	Code in legal text	Habitat type relationship	More information
Council Directive 92/43/EEC of 21 May 1992 on the conservation of natural habitats and of wild fauna and flora - consolidated version 01/01/2007	Annex I: natural habitat types of community interest whose conservation requires the designation of special areas of conservation	Transition mires and quaking bogs	7140	Wider	http://ec.europa.eu/environm...rective/index_en.htm
Council Directive 92/43/EEC of 21 May 1992 on the conservation of natural habitats and of wild fauna and flora - consolidated version 01/01/2007	Annex I: natural habitat types of community interest whose conservation requires the designation of special areas of conservation	Depressions on peat substrates of the Rhynchosporion	7150	Wider

Vegetation types

Relation to vegetation types (syntaxa)

Name	Definition	Other names	Reference
Sphagno-Caricion canescentis Passarge (1964) 1978	Vegetation of most acidic, lime-poor minerotropic transitional mires of Europe	Sphagnion aniblyphylli Segal 1968; Sphagnion palustris Segal 1966; Sphagnion recurvi Succow 1974; Sphagnion teres (Segal 1968) Succow 1974; Subsecundo-Apiculation Du Rietz 1954 (orig. form)	Schaminee et al, 2012
Caricion lasiocarpae Vanden Berghen in Lebrun et al. 1949	Mesotrophic sedge fens of wet sites on peat and mineral soils of Europe	Acrocladio-Caricion Succow 1974; Caricion diandrae Palczynski 1975; Eriophorion gracilis Preising in Oberd. 1957; Junco acutiflori-Caricion lasiocarpae Julve 1993; Junco subnodulosi-Caricion lasiocarpae Julve 1993; Stygio-Caricion limosae Nordhagen 1943 p.p.; Caricion chordorrhizo-lasiocarpae (Vanden Berghen in Lebrun et al. 1949) Julve 1993; Meeseo-Caricion limosae (Preising in Oberd. 1957) Passarge 1978; Carici lasiocarpae-Eriophorion vaginati Voroiov et al. 1997	Schaminee et al, 2012
Sphagnion cuspidati Krajina 1934	Vegetation of stagnant, acid, dystrophic waters in pools of bogs on deep peats of Europe	Caricion rotundatae Kalliola 1939; Droserion intermediae Succow 1974; Molinio caeruleae-Rhynchosporion albae (Koch 1926) de Foucault 1984; Leuko-Scheuchzerion palustris Nordhagen 1943; Rhynchosporion albae sensu auct., non Koch 1926; Scheuchzerio-Rhynchosporion albae Duvigneaud 1949; Scheuchzerion palustris Nordhagen 1936; Scheuchzerion palustris Nordhagen 1937; Scheuchzerion palustris Nordhagen ex Tx. 1937; Sphagnion cuspidati Krajina 1933; Stygio-Caricion limosae Nordhagen 1943; Scheuchzerio-Rhynchosporion albae (Koch 1926) Succow 1974	Schaminee et al, 2012
Caricion fuscae Koch 1926	Fen meadows with dominating sedges and forbs on non-calcareous soils of temperate Europe and high-altitudes of Mediterranean	Caricion canescenti-fuscae Nordhagen 1936 nom. mut. propos.; Agrostio caninae-Caricion curtae Julve 1993; Anagallido tenellae-Juncion bulbosi Br.-Bl. 1967; Calamagrostion neglectae Palczynski 1975; Carici-Nardion V. Randelovic 1998; Carici-Narthecion scardici Horvat 1936; Caricion canescenti-fuscae Nordhagen ex Tx. 1937; Caricion canescenti-goodenowii Nordhagen 1936; Caricion canescenti-goodenowii Nordhagen 1937; Caricion nigrae Koch 1926 nom. mut. propos.; Comaro palustris-Juncion effusi Passarge 1999; Drepanocladion exannulati Krajina 1933; Drepanocladion exannulati Krajina 1934; Eriophorion scheuchzeri Hadac 1939; Narthecion scardici Horvat 1936; Narthecion scardici Horvat 1960; Narthecion scardici Horvat ex Lakušic 1968; Narthecion scardici Horvat ex Lakušic 1970; Ranunculo-Caricion fuscae Passarge 1978; Rhynchosporion albae Koch 1926 nom. dubium propos.; Sphagnion teretis Succow 1974; Caricion canescenti-nigrae Nordhagen ex Tx. 1937 nom. mut. propos.; Anagallido tenellae-Juncion acutiflori Br.-Bl. 1967 nom. corr. propos.; Caricion curto-nigrae (Koch 1926) Westhoff et Den Held 1969; Parvocaricion canescentis-fuscae Duvigneaud et Vanden Berghen 1945; Caricion canescenti-nigrae Nordhagen 1936 nom. mut. propos.	Schaminee et al, 2012

Species mentioned in habitat description

Flowering Plants Calla palustris

Flowering Plants Carex chordorrhiza

Flowering Plants Carex diandra

Flowering Plants Carex heleonastes

Flowering Plants Carex lasiocarpa

Flowering Plants Carex limosa

Flowering Plants Carex rostrata

Flowering Plants Menyanthes trifoliata

Flowering Plants Molinia caerulea

Flowering Plants Potentilla palustris

Flowering Plants Rhynchospora alba

Flowering Plants Scheuchzeria palustris

Species scientific name	English common name	Species group
Calla palustris		Flowering Plants
Carex chordorrhiza		Flowering Plants
Carex diandra		Flowering Plants
Carex heleonastes		Flowering Plants
Carex lasiocarpa		Flowering Plants
Carex limosa		Flowering Plants
Carex rostrata		Flowering Plants
Menyanthes trifoliata		Flowering Plants
Molinia caerulea		Flowering Plants
Potentilla palustris		Flowering Plants
Rhynchospora alba		Flowering Plants
Scheuchzeria palustris		Flowering Plants

Other classifications

Classification	Code	Habitat type name	Relationship type
Palaearctic Habitat Classification 200112	54.5	Transition mires	narrower
CORINE Land Cover	4.1.1.	Inland marshes	n/a
Phase 1 habitat classification (UK) 1993	E33B	Fen: flood plain, basic	not defined
Phase 1 habitat classification (UK) 1993	E32	Fen: basin mire	overlap
Phase 1 habitat classification (UK) 1993	E33	Fen: flood plain	not defined
Phase 1 habitat classification (UK) 1993	E4	Bare peat	narrower
Phase 1 habitat classification (UK) 1993	E32B	Fen: basin mire, basic	overlap
Milieux Naturels de Suisse 1998	2.2.4	Cariçaie de transition	narrower
Biotopes of the Czech Republic 2001	R2.2	NEVÁPNITÁ MECHOVÁ SLATINIŠTĚ (Acidic moss-rich fens)	wider
Biotopes of the Czech Republic 2001	R2.3	PŘECHODOVÁ RAŠELINIŠTĚ (Transitional mires)	wider
Biotopes of Slovakia 1996	8263000	Prechodné rašeliniská	n/a
Biotopes of Slovakia 1996	8263200	Prechodné rašeliniská oligotrofných ekotopov	n/a

For relation to plant communities (syntaxa), see Vegetation types

History

Classification	Code	Habitat type name	Relationship type
EUNIS Habitat Classification 200410	D2.3	Transition mires and quaking bogs	same
EUNIS Habitat Classification 200308	D2.3	Transition mires and quaking bogs	same
EUNIS Habitat Classification 200202	D2.3	Transition mires and quaking bogs	same
EUNIS Habitat Classification 199910	D2.3	Transition mires and quaking bogs	same
EUNIS Habitat Classification 199811	D2.3	Transition mires and quaking bogs	same
EUNIS Habitat Classification 199712	D3.1	Transition mires	same
Palaearctic Habitat Classification 199905	54.5	Transition mires	narrower
Palaearctic Habitat Classification 1997	54.5	Transition mires	narrower
Palaearctic Habitat Classification 1996	54.5		narrower
Palaearctic Habitat Classification 1993	54.5		narrower
CORINE Biotopes Classification 1991	54.5		narrower
CORINE Biotopes Classification 1989	54.5		narrower

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