Regional Nature Park · fra
Grands Causses
- Area
- 3 807 km²
- IUCN cat.
- V
- Year
- 1995
Overview
- Designation
- Regional Nature Park
- IUCN category
- V · Paysage protégé
Paysage façonné par l'humain digne de conservation
- Established
- 1995
- Managing authority
- French Ministry in charge of the environment. In march 2012, name, acronym and address as follows : Ministère de l'Écologie, du Développement durable, des Transports et du Logement (MEDDTL) 92055 La Défense Cedex France. For regional parks network,
Source : WDPA (UNEP-WCMC, World Database on Protected Areas).
Species present
10 640 distinct species · 744 650 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 39 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).
Indicateurs du tissu écologique
Tissu écologique de Grands Causses : 36 espèces + 3 bulles famille, 62 interactions GloBI documentées sur 7 types (connectance 8.4%, filtre Serrano α=0.2). Les 3 bulles regroupent des espèces visuellement absorbées par famille (≥3 espèces visibles).
Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).
Hydrology18 basins · 2 lakes · 100 rivers
Hydrology metrics for this exact territory
Stream length here
972,3km
Lake surface here
2,01km²
Basins crossed
18
Max stream order
5
Max drainage
5 254km²
Discharge in basins
173,5m³/s
Mean precip.
766mm/an
Mean T°
11,4°C
Moisture idx
-0,19
Max snow
12%
Mean runoff
556mm/an
Mean elev. (basins)
607m
Watersheds crossing here
- Bassin du Dourdousub-area805,8 km²overlap766.64 km²20%
- Bassin du Tarnsub-area683,4 km²overlap636.78 km²17%
- Bassin de l'Héraultsub-area2 621,2 km²overlap575.93 km²15%
- Bassin de la Dourbiesub-area664,3 km²overlap448.28 km²12%
- Bassin du Rancesub-area435,7 km²overlap396.53 km²10%
- Bassin de l'Aveyronsub-area1 527,6 km²overlap259.37 km²7%
- Bassin du Tarnsub-area240,4 km²overlap236.44 km²6%
- Bassin du Viaursub-area1 540,8 km²overlap181.78 km²5%
- Bassin du Tarnsub-area218,7 km²overlap131.12 km²3%
9 more basinssorted by overlap
- Bassin de l'Orbsub-area1 805,6 km²overlap71.50 km²2%
- Bassin du Lotsub-area1 033,3 km²overlap56.05 km²1%
- Bassin de la Jontesub-area220,1 km²overlap37.23 km²1%
- Bassin du Tarnsub-area948,2 km²overlap5.82 km²0%
- Basin #04700sub-area77,8 km²overlap1.51 km²0%
- Bassin du Gijousub-area214,3 km²overlap1.00 km²0%
- Bassin du Dadousub-area841 km²overlap0.92 km²0%
- Bassin du Tarnsub-area1 038,5 km²overlap0.23 km²0%
- Bassin de l'Agoûtsub-area513,5 km²overlap0.00 km²0%
Lakes (2, top by area)
Rivers / streams (100, ord ≥ 4)
- Le Tarnord 6len here105.12 km29%total364 km
- La Dourbieord 3len here73.26 km73%total101 km
- Le Ranceord 3len here57.40 km96%total60 km
- Le Dourdouord 4len here31.69 km100%total32 km
- Le Gosord 2len here30.57 km100%total31 km
- La Sorguesord 3len here29.25 km100%total29 km
- La Nuéjoulsord 2len here24.96 km100%total25 km
- Le Lenord 4len here21.74 km100%total22 km
- Le Cernonord 2len here21.43 km100%total21 km
- La Muzeord 2len here20.02 km100%total20 km
- L'Aveyronord 5len here19.87 km8%total236 km
- Le Dourdou de Camaresord 3len here18.70 km100%total19 km
88 more river segmentssorted by Strahler order + length
- Ruisseau de Serreord 2len here18.54 km63%total29 km
- Ruisseau de Sorbsord 2len here16.21 km100%total16 km
- La Visord 4len here16.02 km26%total61 km
- La Lergueord 3len here14.71 km71%total21 km
- La Virenqueord 3len here14.10 km49%total29 km
- Le Liamouord 2len here14.10 km100%total14 km
- Le Durzonord 2len here14.01 km100%total14 km
- Ruisseau de Cansacord 2len here13.76 km90%total15 km
- Ruisseau de Varayrousord 2len here13.37 km100%total13 km
- L'Annouord 2len here12.80 km100%total13 km
- Le Lotord 5len here12.22 km3%total398 km
- Le Sanctusord 2len here12.11 km92%total13 km
- Ruisseau du Matasord 2len here10.84 km100%total11 km
- Le Lumensonesqueord 2len here10.80 km100%total11 km
- Le Toudoureord 1len here9.90 km100%total10 km
- L'Aubayguesord 3len here9.71 km100%total10 km
- Ruisseau de Tantayrouord 2len here9.61 km100%total10 km
- Ruisseau de Mousseord 1len here9.35 km100%total9 km
- Le Grauzouord 1len here9.33 km100%total9 km
- Ruisseau de la Barbadeord 2len here8.84 km100%total9 km
- Le Merdansord 1len here8.70 km100%total9 km
- Ruisseau de Coudolsord 2len here8.15 km53%total15 km
- Le Soulzonord 2len here7.96 km100%total8 km
- Le Maroord 1len here7.82 km100%total8 km
- L'Orbord 4len here7.22 km7%total102 km
- Ruisseau d'Estacheord 2len here7.18 km47%total15 km
- Ruisseau de Rivernousord 3len here7.11 km98%total7 km
- La Catarenqueord 1len here7.02 km100%total7 km
- Le Galatraveord 1len here6.90 km100%total7 km
- Ruisseau de Cantillerguesord 3len here6.87 km100%total7 km
- Ruisseau Des Moulièresord 2len here6.78 km100%total7 km
- La Soulondresord 2len here6.64 km100%total7 km
- Ravin Des Toursord 1len here6.20 km100%total6 km
- Le Cabotord 1len here5.88 km100%total6 km
- Ruisseau des Pradinesord 1len here5.87 km100%total6 km
- Le Lavencouord 1len here5.80 km100%total6 km
- Ruisseau Prat Longord 1len here5.78 km100%total6 km
- Le Baurasord 1len here5.66 km100%total6 km
- Ruisseau d'Avèneord 1len here5.65 km100%total6 km
- Ruisseau de Font d'Amansord 1len here5.40 km100%total5 km
- La Jonteord 2len here5.37 km20%total27 km
- Ruisseau de Lévezacord 2len here4.90 km100%total5 km
- Le Giffouord 2len here4.89 km16%total30 km
- Ruisseau de la Fagetteord 1len here4.71 km100%total5 km
- Ruisseau de Monnarguesord 3len here4.64 km100%total5 km
- La Vèrèneord 1len here4.34 km100%total4 km
- Ruisseau de Pourcaresseord 2len here4.31 km100%total4 km
- Ruisseau de Vernobreord 1len here4.15 km100%total4 km
- Rivière de Primelleord 2len here3.83 km100%total4 km
- Le Verlenqueord 1len here3.79 km100%total4 km
- Ruisseau de l'Homme Mortord 2len here3.73 km100%total4 km
- Ruisseau de Trébansord 1len here3.66 km100%total4 km
- Le Merdansonord 1len here3.65 km100%total4 km
- Ravin du Fournelord 3len here3.65 km49%total8 km
- Pont-canalord 3len here3.63 km100%total4 km
- Ruisseau de Garèneord 1len here3.62 km30%total12 km
- La Margueriteord 3len here3.54 km97%total4 km
- Ruisseau de Brèvesord 1len here3.49 km100%total3 km
- Ruisseau du Pouxord 1len here3.48 km100%total3 km
- Le Trèvezelord 2len here3.47 km19%total19 km
- Rieu Secord 1len here2.99 km100%total3 km
- La Fousetteord 1len here2.87 km100%total3 km
- Le Salagouord 2len here2.82 km25%total11 km
- Ruisseau de Rebouissesord 4len here2.71 km100%total3 km
- Le Viaurord 4len here2.71 km3%total85 km
- Ravin de Vallongueord 1len here2.67 km100%total3 km
- Ruisseau de Bourjacord 4len here2.51 km100%total3 km
- Ruisseau de Truansord 1len here2.31 km100%total2 km
- Riou Frechord 2len here2.25 km100%total2 km
- Le Bouzouord 1len here2.19 km100%total2 km
- Canal du Moulin de Raspaillacord 2len here2.18 km100%total2 km
- Ruisseau du Plan de l'Olmord 1len here2.16 km71%total3 km
- Le Vioulouord 3len here2.08 km9%total22 km
- Ruisseau de Nozeranord 4len here2.02 km38%total5 km
- Ruisseau de l'Avenetteord 2len here1.94 km17%total12 km
- Ruisseau de Pinetord 4len here1.90 km100%total2 km
- Le Vernobreord 1len here1.73 km100%total2 km
- Ruisseau de Lavaurord 1len here1.62 km100%total2 km
- Devreord 1len here1.43 km100%total1 km
- Ruisseau des Avertesord 1len here1.32 km100%total1 km
- Ruisseau du Moulinord 4len here1.26 km21%total6 km
- Le Pas du Loupord 1len here1.16 km100%total1 km
- Le Laurounnetord 3len here1.14 km100%total1 km
- Lambeyranord 1len here1.08 km101%total1 km
- Ruisseau du Bruelord 2len here0.90 km101%total1 km
- Le Berlieresord 1len here0.86 km100%total1 km
- Ravin des Bastidesord 2len here0.84 km10%total9 km
- Les Douzesord 1len here0.80 km57%total1 km
Live spatial overlap (cached after first hit) · HydroBASINS lev08 × HydroLAKES × HydroRIVERS v10
Location
Fond cartographique : OpenFreeMap · © OpenStreetMap contributors · Géométrie : nos sources (GADM/HydroBASINS/HydroLAKES/HydroRIVERS/WDPA)
- Centroid
- 44.06740, 3.02577
- Open in maps
- OpenStreetMap → · Satellite →
Species observed (Phase 2)
Listing species observed within this protected area requires the GBIF v2 partition × WDPA spatial overlay matview. Computing infrastructure pending.