HydroBASINS lev08 watershed · #2080572110
Bassin de la Tinée
A watershed (drainage basin) is not a body of water — it is the land area where rainfall converges towards a single river that eventually reaches the sea (or an endorheic basin). Boundaries follow ridgelines.
Crosses 3 administrative regions across 2 countries : Alpes-Maritimes, Alpes-de-Haute-Provence, Cuneo
Sub-basin area
744km²
Upstream area
744km²
Discharge
16,5m³/s
Mean elev.
1 704m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
3 dept-equivalent regions (GADM L2)
- 740.8 km²99.4% of basin
- 2.6 km²0.3% of basin
- 2.1 km²0.3% of basin
29 communes (GADM L5)Available for FRA, RWA
- Saint-Étienne-de-Tinée172.78 km²93% commune
- Isola99.21 km²98% commune
- Valdeblore81.55 km²87% commune
- Saint-Dalmas-le-Selvage79.04 km²99% commune
- Roure38.41 km²100% commune
- Ilonse37.77 km²92% commune
- Clans37.51 km²99% commune
- La Tour35.99 km²100% commune
- Saint-Sauveur-sur-Tinée32.56 km²100% commune
- Roubion26.88 km²99% commune
- Rimplas24.64 km²100% commune
- Beuil21.96 km²29% commune
- Marie14.54 km²100% commune
- Bairols13.59 km²92% commune
- Utelle12.31 km²18% commune
- Tournefort6.07 km²62% commune
- Péone4.85 km²10% commune
- Jausiers1.04 km²1% commune
- Larche0.99 km²1% commune
- Entraunes0.54 km²1% commune
- Venanson0.15 km²1% commune
- Villars-sur-Var0.12 km²0% commune
- Lieuche0.10 km²1% commune
- Pierlas0.10 km²0% commune
- Uvernet-Fours0.10 km²0% commune
- Saint-Martin-Vésubie0.06 km²0% commune
- Thiéry0.04 km²0% commune
- Massoins0.00 km²0% commune
- Châteauneuf-d'Entraunes0.00 km²0% commune
16 intersecting protected areas
Mercantour
IUCN IINational Park - Core Area
239.31 km² overlap
Le Mercantour
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
239.29 km² overlap
Le Mercantour
IUCN Not ReportedSpecial Protection Area (Birds Directive)
239.27 km² overlap
National Park - Buffer zone/Area of adhesion
114.64 km² overlap
Special Areas of Conservation (Habitats Directive)
64.60 km² overlap
Sites à chauves souris de la Haute Tinée
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
17.88 km² overlap
Brec d'Utelle
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
13.84 km² overlap
Alte Valli Stura e Maira
IUCN Not ReportedSpecial Protection Area (Birds Directive)
4.85 km² overlap
auron
IUCN IVLand acquired by a regional conservatory of natural areas
3.65 km² overlap
7 more protected areassorted by overlap area
Adret de Pra Gaze
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
1.08 km² overlap
Colle e Lago della Maddalena, Val Puriac
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
0.71 km² overlap
Regional/Provincial Nature Park
0.65 km² overlap
Gruppo del Tenibres
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
0.60 km² overlap
Alpi Marittime
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
0.56 km² overlap
Alpi Marittime
IUCN Not ReportedSpecial Protection Area (Birds Directive)
0.56 km² overlap
Vallone di Orgials - Colle della Lombarda
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
0.24 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
11 468 distinct species · 515 733 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 22 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 Bassin de la Tinée : 11 espèces reliées par 94 interactions GloBI sur 6 types (connectance 34.1%, filtre Serrano α=0.2). 13 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).
Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).
Hydroclimate (BasinATLAS lev08)
Mean T°
5,6°C
Annual rain
1 105mm
Moisture idx (CMI)
0,39
Runoff
623mm/an
PET
633mm
AET
560mm
Mean slope
25,9°
Water table
872cm
Forest
62%
Crops
4%
Urban
0%
Protected
78%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)