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Habitat types key navigation

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You can use the 'key navigation' function to identify a specific habitat by answering a set of questions. Starting from first question to next questions you select one of the possible answers. Here are samples of possible answers:
  • No ( 002 ) - Leading to question named '002'
  • Yes [ G ] - Leading to another questions subset of level G
  • No Factsheet icon[ E6 ] - Links directly to factsheet for E6
Additionally the diagram may be used for reference.


Category : (D )Mires, bogs and fens
Diagram : Diagram icon


Question i :   Source of water
   The criterion separates habitats on the basis of the source of their water supply: completely or primarily ombrogenous (<strong> rainwater only</strong>) from <strong>other</strong> sources which are combinations of ombrogenous, soligenous (run-off) and topogenous (groundwater) but where the ombrogenous water supply is of less importance.
Answers:
rainwater only Factsheet icon [ This answer goes to category D1 D1 ] other (Question ii )


Question ii :   Frost or ice dependent?
   Mires whose formation and maintenance is completely dependent on the action of frost or ice are separated (path = <strong>Yes</strong>).
Answers:
Yes Factsheet icon [ This answer goes to category D3 D3 ] No (Question iii )


Question iii :   Peat formation at water surface?
   Transition mires in which the water table is at or near the surface and peat forms a floating raft at the water surface are distinguished (path = <strong>Yes</strong>).
Answers:
Yes Factsheet icon [ This answer goes to category D2 D2 ] No (Question iv )


Question iv :   Acid?
   Mires in which the peat formation occurs in waterlogged ground are separated if they have a predominantly acid water supply (path = <strong>Yes</strong>).
Answers:
Yes Factsheet icon [ This answer goes to category D2 D2 ] No (Question v )


Question v :   Saline or brackish?
   Marshes and reedbeds with a saline or brackish water supply (> 0.5 parts per thousand salt) (path = <strong>Yes</strong>) are distinguished from freshwater habitats (path = <strong>No</strong>).
Answers:
Yes Factsheet icon [ This answer goes to category D6 D6 ] No (Question vi )


Question vi :   Dominated by few species of tall helophytes?
   Separates topogenous and soligenous habitats dominated by few species of tall helophytes (plants rooted below the water table but with emergent aerial shoots), typically species-poor extensive sedge and reed beds (path = <strong>Yes</strong>), from habitats dominated by low-growing vegetation on shallow organic or mineral substrates, which is typically species-rich vegetation of fens (path = <strong>No</strong>). Note: reed and sedge beds of the littoral zone (usually less than 5 m wide) rooted in open water with associated aquatic species are categorised under C3.
Answers:
Yes Factsheet icon [ This answer goes to category D5 D5 ] No Factsheet icon [ This answer goes to category D4 D4 ]

EUNIS

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European Environment Agency, Kongens Nytorv 6, DK - 1050 Copenhagen K, Denmark - Phone: +45 3336 7100
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