Iroise
IUCN Not ReportedMarine Protected Area (OSPAR) · 2007
3 431 km²
Region · fra
Bretagne
France
CfbTemperate, no dry season, warm summer(100 %)
Species observed
19 605
Observations
6 321 053
Area
27 632,5km²
Ecological tissue
Sample of 37 species (selected proportionally per kingdom among those with at least one documented interaction here) to keep the graph readable. Hover for details, click to explore the full ecosystem of a species.
ℹ️ The territory contains many more species than displayed and all their documented interactions: the graph is intentionally the structural skeleton (top-N species by composite local score, edges filtered by Serrano 2009 disparity filter α=0.2).
RègnesAnimalPlanteChampignonBacterie
RelationsPredationParasitismeSymbiosePollinisation
StatutEn dangerVulnérableProtégéeEndémique
Indicateurs du tissu écologique
Tissu écologique de Bretagne : 24 espèces dont 2 patrimoniales (LR IUCN CR/EN/VU) reliées par 104 interactions GloBI sur 5 types (connectance 15.6%, filtre Serrano α=0.2). 13 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).
Espèces affichées
37
Interactions affichées
104
Connectance
0.156
Patrimoniales
2
Plus dense que (national)0 %(top 100%)
Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).
Species present
19 605 distinct species · 6 321 053 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Climate
Mean T°
11,4°C
Annual rain
950mm
Warmest m°
21,0°C
Coldest m°
3,4°C
Elevation: 97 m on average (min -74 m, max 323 m)
Bioclimatic details19 BIO + Köppen full + altitude statsExpert
Annual mean temp.
11,4°C
Annual rain
950mm
Warmest month
21,0°C
Coldest month
3,4°C
Mean alt.
97m
Min
-74m
Max
323m
Std. dev.
60m
Köppen-Geiger (dominant)
CfbTemperate, no dry season, warm summer(100 %)Temperate
CHELSA BIO 1-19 v2.1 · ETOPO DEM 60s · Köppen-Geiger 1991-2020 (Beck et al. 2018)
Soil & lithology
pH H₂O
5,9
Org. C
40,5g/kg
Clay
21,2%
Sand
24,6%
Silt
54,3%
Average over 0-30 cm. Per-depth details in expert panel.
3 soil depths detailed0-5cm / 5-15cm / 15-30cm × 5 propsExpert
0–5 cm
pH H₂O
5,9
Org. C
61,8g/kg
Clay
20,4%
Sand
24,9%
Silt
54,7%
5–15 cm
pH H₂O
5,9
Org. C
35,5g/kg
Clay
20,9%
Sand
24,5%
Silt
54,6%
15–30 cm
pH H₂O
5,9
Org. C
24,4g/kg
Clay
22,2%
Sand
24,3%
Silt
53,5%
SoilGrids 250m (ISRIC, 2017) · GLiM v1.0 (Hartmann & Moosdorf 2012)
Land cover
Forest21.1%
Crops43.9%
Built-up1.4%
Bare soil0.5%
Other (grassland, water…)33.0%
Copernicus Global Land Cover 100m (Buchhorn et al. 2020)
Hydrology42 basins · 50 lakes · 100 rivers
Hydrology metrics for this exact territory
Stream length here
3 912,2km
Lake surface here
44,73km²
Basins crossed
42
Max stream order
6
Max drainage
10 459km²
Discharge in basins
850,6m³/s
Mean precip.
881mm/an
Mean T°
11,0°C
Moisture idx
0,16
Max snow
9%
Mean runoff
678mm/an
Mean elev. (basins)
96m
Watersheds crossing here
- Bassin de l'Élornsub-area3 063,8 km²overlap2941.59 km²11%
- Bassin du Blavetsub-area2 054,1 km²overlap2060.17 km²7%
- Bassin de l'Aulnesub-area1 789,2 km²overlap1789.86 km²6%
- Bassin du Loc'hsub-area1 838,5 km²overlap1715.28 km²6%
- Bassin de la Vilainesub-area1 598,5 km²overlap1503.16 km²5%
- Bassin du Gouëtsub-area1 409,4 km²overlap1364.30 km²5%
- Bassin du Donsub-area2 420,8 km²overlap1194.42 km²4%
- Bassin de la Rancesub-area1 026,2 km²overlap1029.23 km²4%
- Bassin du Goyensub-area1 077,9 km²overlap1009.51 km²4%
33 more basinssorted by overlap
- Bassin de l'Isolesub-area1 001,9 km²overlap1004.26 km²4%
- Bassin du Couesnonsub-area1 112,1 km²overlap949.47 km²3%
- Bassin du Trieuxsub-area841,3 km²overlap843.88 km²3%
- Bassin du Meusub-area813,4 km²overlap815.86 km²3%
- Bassin de la Seichesub-area817,2 km²overlap787.79 km²3%
- Bassin de l'Affsub-area736,9 km²overlap739.04 km²3%
- Bassin de l'Odetsub-area718 km²overlap720.06 km²3%
- Bassin du Niniansub-area714 km²overlap716.10 km²3%
- Bassin du Jaudysub-area668,4 km²overlap619.48 km²2%
- Bassin de l'Arguenonsub-area596,9 km²overlap598.59 km²2%
- Bassin du Guyoultsub-area627,3 km²overlap591.12 km²2%
- Bassin du Léguersub-area487,3 km²overlap488.64 km²2%
- Bassin du Liésub-area475,2 km²overlap476.63 km²2%
- Bassin de l'Oustsub-area428,9 km²overlap430.19 km²2%
- Bassin du Scorffsub-area404,1 km²overlap405.30 km²1%
- Bassin de la Vilainesub-area383,8 km²overlap379.61 km²1%
- Bassin de la Claiesub-area353 km²overlap354.02 km²1%
- Bassin de l'Arzsub-area350 km²overlap350.94 km²1%
- Bassin du Valsub-area270,9 km²overlap253.14 km²1%
- Bassin de Canal de Nantes à Brest - L'Oust Canalisésub-area245,1 km²overlap245.84 km²1%
- Bassin de Canal de Nantes à Brest - L'Oust Canalisésub-area220,3 km²overlap220.98 km²1%
- Bassin de l'Avensub-area208,6 km²overlap208.25 km²1%
- Bassin du Frémursub-area201,7 km²overlap186.23 km²1%
- Bassin de la Sélunesub-area1 046 km²overlap167.73 km²1%
- Bassin du Bélonsub-area149,7 km²overlap145.06 km²1%
- Bassin du Tersub-area120,6 km²overlap109.51 km²0%
- Bassin de Canal de Nantes à Brest - L'Oust Canalisésub-area73,9 km²overlap74.16 km²0%
- Bassin du Brivetsub-area1 137,7 km²overlap51.51 km²0%
- Bassin de la Vilainesub-area25,7 km²overlap25.73 km²0%
- Bassin de Ruisseau du Plessissub-area21,7 km²overlap20.84 km²0%
- Bassin de la Vilainesub-area77,8 km²overlap20.42 km²0%
- Bassin de l'Oudonsub-area1 489 km²overlap16.18 km²0%
- Bassin de l'Isacsub-area724,5 km²overlap7.40 km²0%
Lakes (50, top by area)
- Lake #13932area27,5 km²avg depth21.1 m
- Lac de Brennilisarea3,8 km²avg depth3.6 m
- Lake #68610area2,9 km²avg depth6.0 m
- Lac de Guerlédanarea2,6 km²avg depth19.3 m
- La Cantachearea1,6 km²avg depth5.8 m
- Étang au Ducarea1,6 km²avg depth3.9 m
- Retenue de la Chèzearea1,2 km²avg depth4.4 m
- Étang de Bouletarea1 km²avg depth3.4 m
- Lac 1347018area1 km²avg depth6.5 m
41 more lakes
- Lac 1345968area1 km²avg depth5.7 m
- Lac 1346663area0,9 km²avg depth3.4 m
- Lac 1345508area0,7 km²avg depth6.7 m
- Lac 1345215area0,6 km²avg depth2.5 m
- Lac 1347831area0,6 km²avg depth3.3 m
- Lac 1347318area0,6 km²avg depth4.9 m
- Lac 1347907area0,5 km²avg depth4.0 m
- Lac 1346532area0,5 km²avg depth3.5 m
- Lac 1349447area0,5 km²avg depth3.2 m
- Lac 1347168area0,5 km²avg depth3.3 m
- Lac 1349058area0,5 km²avg depth2.0 m
- Lac 1348201area0,4 km²avg depth3.6 m
- Lac 1346352area0,4 km²avg depth2.7 m
- Lac 1345339area0,4 km²avg depth2.2 m
- Lac 1347529area0,4 km²avg depth3.5 m
- Lac 1347445area0,3 km²avg depth2.8 m
- Lac 1345410area0,3 km²avg depth3.6 m
- Lac 1348448area0,3 km²avg depth3.3 m
- Lac 1348996area0,3 km²avg depth3.2 m
- Lac 1348169area0,3 km²avg depth3.1 m
- Lac 1347251area0,3 km²avg depth3.6 m
- Lac 1347699area0,3 km²avg depth3.4 m
- Lac 1349087area0,3 km²avg depth1.5 m
- Lac 1346690area0,3 km²avg depth3.9 m
- Lac 1349431area0,3 km²avg depth2.5 m
- Lac 1347290area0,3 km²avg depth2.0 m
- Lac 1347623area0,3 km²avg depth3.5 m
- Lac 1345087area0,3 km²avg depth3.8 m
- Lac 1349520area0,3 km²avg depth4.0 m
- Lac 1349463area0,3 km²avg depth3.4 m
- Lac 1347627area0,3 km²avg depth2.8 m
- Lac 1347375area0,2 km²avg depth3.0 m
- Lac 1345907area0,2 km²avg depth4.5 m
- Lac 1346866area0,2 km²avg depth3.4 m
- Lac 1346172area0,2 km²avg depth4.2 m
- Lac 1349007area0,2 km²avg depth2.9 m
- Lac 1344741area0,2 km²avg depth2.2 m
- Lac 1345763area0,2 km²avg depth3.4 m
- Lac 1345413area0,2 km²avg depth4.1 m
- Lac 1349615area0,2 km²avg depth3.9 m
- Lac 1345919area0,2 km²avg depth4.5 m
Rivers / streams (100, ord ≥ 4)
- La Vilaineord 6len here191.16 km86%total223 km
- Le Blavetord 4len here186.31 km100%total186 km
- L'Aulneord 5len here150.13 km100%total150 km
- Le Trieuxord 4len here88.18 km100%total88 km
- Le Liéord 3len here87.00 km100%total87 km
- La Ranceord 4len here80.63 km100%total81 km
- La Seicheord 4len here79.39 km96%total83 km
- La Claieord 3len here77.55 km100%total77 km
- L'Oustord 5len here76.44 km100%total76 km
- Le Scorfford 3len here76.13 km100%total76 km
- Le Léguerord 3len here68.94 km99%total69 km
- Canal de Nantes à Brest - L'Oust Canaliséord 5len here68.17 km100%total68 km
88 more river segmentssorted by Strahler order + length
- Le Couesnonord 4len here64.54 km72%total89 km
- Le Canutord 2len here64.48 km100%total64 km
- L'Isoleord 3len here60.81 km100%total61 km
- L'Arguenonord 3len here59.78 km100%total60 km
- Le Meuord 3len here58.37 km100%total58 km
- L'Afford 4len here57.88 km100%total58 km
- L'Odetord 4len here57.59 km100%total58 km
- L'Hyèresord 4len here57.15 km100%total57 km
- L'Élornord 3len here55.14 km97%total57 km
- Le Ninianord 4len here54.55 km100%total54 km
- L'Arzord 3len here53.51 km100%total53 km
- Le Jaudyord 3len here53.33 km100%total53 km
- L'Elléord 4len here51.02 km100%total51 km
- L'Yvelord 3len here48.74 km100%total49 km
- Le Lefford 3len here47.69 km100%total48 km
- L'Évelord 3len here43.74 km100%total44 km
- L'Inamord 3len here43.18 km100%total43 km
- Le Semnonord 3len here40.78 km80%total51 km
- L'Avenord 3len here40.04 km96%total42 km
- Le Loc'hord 2len here39.50 km100%total39 km
- La Sarreord 2len here38.45 km100%total38 km
- La Cantacheord 2len here38.13 km100%total38 km
- Canal de Nantes à Brestord 3len here37.38 km100%total37 km
- L'Illeord 3len here36.75 km100%total37 km
- Canal de Nantes à Brestord 5len here36.55 km100%total36 km
- Le Garunord 3len here36.39 km100%total36 km
- Le Gouëtord 3len here36.39 km100%total37 km
- Le Saint-Éloiord 3len here34.86 km100%total35 km
- Le Goyenord 3len here34.05 km96%total36 km
- La Penzéord 3len here32.42 km98%total33 km
- La Veuvreord 3len here32.38 km100%total32 km
- L'Evronord 3len here31.77 km100%total32 km
- Le Queffleuthord 3len here30.99 km100%total31 km
- Le Guindyord 2len here30.31 km100%total30 km
- La Douffineord 3len here30.20 km100%total30 km
- Le Guicord 3len here29.92 km100%total30 km
- Le Jetord 3len here29.61 km100%total30 km
- Le Gouessantord 4len here28.67 km100%total29 km
- Le Langelinord 3len here28.03 km100%total28 km
- Le Douronord 2len here25.60 km98%total26 km
- Le Guyoultord 2len here25.37 km100%total25 km
- L'Aber Wrac'hord 3len here25.29 km91%total28 km
- Ruisseau de Pont Melinord 2len here25.19 km100%total25 km
- Canal d'Ille-et-Ranceord 3len here25.03 km100%total25 km
- La Vaunoiseord 3len here24.66 km100%total25 km
- Le Bélonord 2len here24.42 km96%total25 km
- La Loisanceord 2len here23.78 km100%total24 km
- Le Tarunord 2len here23.42 km100%total23 km
- L'Aërord 2len here23.13 km100%total23 km
- Le Quillimadecord 3len here22.84 km100%total23 km
- La Flumeord 2len here22.83 km100%total23 km
- Le Sulonord 3len here22.45 km100%total22 km
- L'Oyonord 2len here22.34 km100%total22 km
- Ster Gozord 3len here22.13 km100%total22 km
- Canal d'Ille-et-Ranceord 4len here22.06 km100%total22 km
- Rivière de Kersaultord 2len here21.99 km100%total22 km
- L'Aber Benoîtord 3len here21.83 km82%total27 km
- Ellezord 2len here21.48 km100%total21 km
- La Rosetteord 3len here21.03 km100%total21 km
- Rivière de Pont-l'Abbéord 3len here20.99 km100%total21 km
- Le Camfroutord 2len here20.89 km96%total22 km
- Le Jarlotord 3len here20.75 km100%total21 km
- Le Combsord 2len here19.87 km100%total20 km
- Le Guillecord 2len here19.73 km100%total20 km
- La Valièreord 3len here19.62 km96%total20 km
- Le Steirord 3len here19.59 km100%total20 km
- L'Iseord 2len here19.42 km100%total19 km
- Le Daoulasord 2len here19.31 km100%total19 km
- Le Tertre Guyord 1len here19.13 km100%total19 km
- Le Sereinord 2len here18.92 km100%total19 km
- L'Hornord 2len here18.45 km100%total18 km
- Coat Toulzac'hord 2len here18.38 km100%total18 km
- Le Linonord 3len here18.27 km100%total18 km
- L'Illetord 2len here17.98 km100%total18 km
- Le Blosneord 4len here17.71 km100%total18 km
- Le Yarord 2len here17.63 km99%total18 km
- Le Salord 3len here17.32 km98%total18 km
- Le Frémurord 1len here17.30 km97%total18 km
- Stêr Goanesord 3len here17.29 km100%total17 km
- La Chèzeord 1len here17.16 km100%total17 km
- Le Rahunord 3len here17.15 km100%total17 km
- La Penfeldord 2len here17.05 km100%total17 km
- Ruisseau du Toulduord 2len here17.00 km100%total17 km
- L'Urneord 2len here16.83 km100%total17 km
- La Belle Chèreord 1len here16.67 km100%total17 km
- La Quincampoixord 3len here16.66 km100%total17 km
- Le Roudouhirord 2len here16.59 km100%total17 km
- Le Frémeurord 2len here16.54 km100%total17 km
Live spatial overlap (cached after first hit) · HydroBASINS lev08 × HydroLAKES × HydroRIVERS v10
Human pressure
Pop. density
1hab/km²
Night light
0,4nW
Built-up
140,5%
Pesticides
46,0kg/km²
GHSL POP/Built 2020 · VIIRS lumière nocturne · PEST-CHEMGRIDS 2020 (Maggi et al.)
Protected areas100
IUCN Not Reported · 84IUCN IV · 11IUCN V · 5🌊 Marine · 84
Iroise
IUCN VMarine Nature Park · 2007
3 431 km²
Armorique
IUCN VRegional Nature Park · 1969
1 259 km²
Tregor Goëlo
IUCN Not ReportedSpecial Protection Area (Birds Directive) · 2019
913 km²
Trégor Goëlo
IUCN Not ReportedMarine Protected Area (OSPAR) · 2012
912 km²
Tregor Goëlo
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive) · 2016
910 km²
Complete list100 protected areas
- IroiseMarine Protected Area (OSPAR)IUCN Not Reported20073 431 km²
- IroiseMarine Nature ParkIUCN V20073 431 km²
- ArmoriqueRegional Nature ParkIUCN V19691 259 km²
- Tregor GoëloSpecial Protection Area (Birds Directive)IUCN Not Reported2019913 km²
- Trégor GoëloMarine Protected Area (OSPAR)IUCN Not Reported2012912 km²
- Tregor GoëloSpecial Areas of Conservation (Habitats Directive)IUCN Not Reported2016910 km²
- Trégor GoëloMarine Protected Area (OSPAR)IUCN Not Reported2012910 km²
- Vallée de la Rance - Côte d\'EmeraudeRegional Nature ParkIUCN V2024893 km²
- ChauseySpecial Protection Area (Birds Directive)IUCN Not Reported2005823 km²
- Ouessant-MolèneSpecial Protection Area (Birds Directive)IUCN Not Reported2019772 km²
- Ouessant-MolèneSpecial Areas of Conservation (Habitats Directive)IUCN Not Reported2014772 km²
- Golfe Du MorbihanRegional Nature ParkIUCN V2014736 km²
- Côte de Granit rose-Sept-IlesSpecial Areas of Conservation (Habitats Directive)IUCN Not Reported2017721 km²
- Côte de Granit rose - Sept-ÎlesMarine Protected Area (OSPAR)IUCN Not Reported2012721 km²
- Cote de Granit Rose-Sept IlesSpecial Protection Area (Birds Directive)IUCN Not Reported2019695 km²
- Côte de Granit rose - Sept-IlesMarine Protected Area (OSPAR)IUCN Not Reported2012695 km²
- Archipel de GlenanSpecial Protection Area (Birds Directive)IUCN Not Reported2019588 km²
- Archipel des GlénanSpecial Areas of Conservation (Habitats Directive)IUCN Not Reported2017587 km²
- Archipel des GlénanMarine Protected Area (OSPAR)IUCN Not Reported2012587 km²
- BrièreRegional Nature ParkIUCN V1970566 km²
- Cap d'Erquy-Cap FréhelSpecial Areas of Conservation (Habitats Directive)IUCN Not Reported2016558 km²
- Baie du Mont Saint-MichelSpecial Protection Area (Birds Directive)IUCN Not Reported2006471 km²
- Baie du Mont Saint-MichelWetland of International Importance (Ramsar Site)IUCN Not Reported1994459 km²
- Roches de PenmarchMarine Protected Area (OSPAR)IUCN Not Reported2012458 km²
- Roches de PenmarchSpecial Areas of Conservation (Habitats Directive)IUCN Not Reported2014458 km²
- Roches de Penmarc'hSpecial Protection Area (Birds Directive)IUCN Not Reported2019458 km²
- Chaussée de SeinSpecial Areas of Conservation (Habitats Directive)IUCN Not Reported2014415 km²
- Cap d'Erquy-Cap FréhelSpecial Protection Area (Birds Directive)IUCN Not Reported2019404 km²
- Baie du Mont Saint-MichelSpecial Areas of Conservation (Habitats Directive)IUCN Not Reported2016395 km²
- Ile de GroixMarine Protected Area (OSPAR)IUCN Not Reported2012284 km²
- Ile de GroixSpecial Areas of Conservation (Habitats Directive)IUCN Not Reported2014284 km²
- Baie de MorlaixSpecial Protection Area (Birds Directive)IUCN Not Reported2019273 km²
- Baie de MorlaixSpecial Areas of Conservation (Habitats Directive)IUCN Not Reported2016266 km²
- Baie de MorlaixMarine Protected Area (OSPAR)IUCN Not Reported2012266 km²
- Abers - Côte des légendesSpecial Areas of Conservation (Habitats Directive)IUCN Not Reported2016227 km²
- Abers - côtes des LégendesMarine Protected Area (OSPAR)IUCN Not Reported2012227 km²
- Golfe du Morbihan, côte ouest de RhuysSpecial Areas of Conservation (Habitats Directive)IUCN Not Reported2007206 km²
- Golfe du Morbihan, côte Ouest de RhuysMarine Protected Area (OSPAR)IUCN Not Reported2012206 km²
- Sept-IlesNational Nature ReserveIUCN IV1976197 km²
- Golfe du MorbihanWetland of International Importance (Ramsar Site)IUCN Not Reported1991190 km²
- Iles Houat-HoedicSpecial Areas of Conservation (Habitats Directive)IUCN Not Reported2016178 km²
- Belle Ile en merSpecial Areas of Conservation (Habitats Directive)IUCN Not Reported2014174 km²
- Belle Île en merMarine Protected Area (OSPAR)IUCN Not Reported2012174 km²
- Iles Houat-HoedicSpecial Protection Area (Birds Directive)IUCN Not Reported2019173 km²
- Baie de Saint-Brieuc - EstSpecial Areas of Conservation (Habitats Directive)IUCN Not Reported2014144 km²
- Baie de Saint-Brieuc - EstSpecial Protection Area (Birds Directive)IUCN Not Reported2019135 km²
- Marais de VilaineSpecial Areas of Conservation (Habitats Directive)IUCN Not Reported2016109 km²
- Monts d'Arrée centre et estSpecial Areas of Conservation (Habitats Directive)IUCN Not Reported2007109 km²
- Côtes de CrozonSpecial Areas of Conservation (Habitats Directive)IUCN Not Reported2014102 km²
- Dunes et côtes de TrévignonSpecial Areas of Conservation (Habitats Directive)IUCN Not Reported201799 km²
- Dunes et côtes de TrévignonSpecial Protection Area (Birds Directive)IUCN Not Reported201999 km²
- Golfe du MorbihanSpecial Protection Area (Birds Directive)IUCN Not Reported201995 km²
- Rade de Brest, estuaire de l'AulneSpecial Areas of Conservation (Habitats Directive)IUCN Not Reported201492 km²
- Rade de Brest : Baie de Daoulas, Anse de PoulmicSpecial Protection Area (Birds Directive)IUCN Not Reported201981 km²
- Golfe Du MorbihanNational Hunting and Wildlife ReserveIUCN IV200874 km²
- Baie de VilaineSpecial Protection Area (Birds Directive)IUCN Not Reported201968 km²
- Massif dunaire Gavres-Quiberon et zones humides associéesMarine Protected Area (OSPAR)IUCN Not Reported201268 km²
- Massif dunaire Gâvres-Quiberon et zones humides associéesSpecial Areas of Conservation (Habitats Directive)IUCN Not Reported202168 km²
- Baie de Lancieux, Baie de l'Arguenon, Archipel de Saint Malo et DinardSpecial Areas of Conservation (Habitats Directive)IUCN Not Reported201451 km²
- Marais salants de Guérande et du MésWetland of International Importance (Ramsar Site)IUCN Not Reported199550 km²
+ 40 protected areas (top 60 shown)
WDPA (World Database on Protected Areas) — UNEP-WCMC & IUCN