Bassin du Drugeon: Pontarlier-Frasne

IBA Criteria

Year of most recent IBA criteria assessment: 2000

Populations of IBA trigger species
Species Current IUCN Red List Category Season Year(s) of estimate Population estimate IBA Criteria Triggered
Hazel Grouse Bonasa bonasia LC breeding 1991 20-50 breeding pairs C6
Corncrake Crex crex LC breeding 1992 2 breeding pairs C6
Spotted Crake Porzana porzana LC breeding 1991 2-5 breeding pairs C6
European Honey-buzzard Pernis apivorus LC breeding 1991 1 breeding pairs C6
Milvus migrans NR breeding 1991 40-50 breeding pairs C6

Note: This table presents the IBA criteria triggered and the species that triggered then at the time of assessment, the current IUCN Red List category may vary from that which was in place at that time.

For more information about the IBA assessment process and criteria please click here

IBA Protection

Protected Area Designation Area (ha) Relationship with IBA Overlap with IBA (ha)
Tourbières de Frasne-Bouverans Réserve naturelle régionale 293 protected area contained by site 0
Seigne des Barbouillons Réserve naturelle régionale 35 protected area contained by site 0
FR097 Private Reserve 160 protected area contained by site 160
Bassin du Drugeon du Doubs Arrêté de protection de biotope 2,935 protected area contained by site 0
Bassin du Drugeon Site of Community Importance (Habitats Directive) 6,704 protected area overlaps with site 6,704
Bassin du Drugeon Ramsar Site, Wetland of International Importance 5,906 protected area contained by site 5,988
Bassin du Drugeon Special Protection Area (Birds Directive) 6,520 protected area contained by site 6,520


IUCN Habitat Habitat detail Extent (% of site)
Forest Broadleaved deciduous woodland, Native coniferous woodland -
Grassland Humid grasslands -
Wetlands (inland) Standing freshwater, Raised bogs, Water fringe vegetation -
For further information about the habitat classification please click here.

Land use

Land-use Extent (% of site)
agriculture -
fisheries/aquaculture -
forestry -
hunting -
tourism/recreation -
urban/industrial/transport -
For further information about the land use classification please click here.

Recommended citation
BirdLife International (2022) Important Bird Areas factsheet: Bassin du Drugeon: Pontarlier-Frasne. Downloaded from on 08/12/2022.