HydroBASINS lev08 watershed · #7080319640
Bassin de Rivière Marquis
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 1 administrative regions : Vallée-de-l'Or
Sub-basin area
2 257,5km²
Upstream area
2 257,5km²
Discharge
37,09m³/s
Mean elev.
344m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
1 dept-equivalent regions (GADM L2)
- 2264.2 km²100.0% of basin
10 intersecting protected areas
Biodiversity reserve
26.33 km² overlap
08451R040 Biological Refuge
IUCN IVBiological refuge
6.48 km² overlap
08451R049 Biological Refuge
IUCN IVBiological refuge
3.94 km² overlap
08451R047 Biological Refuge
IUCN IVBiological refuge
3.23 km² overlap
08351R067 Biological Refuge
IUCN IVBiological refuge
2.81 km² overlap
08351R016 Biological Refuge
IUCN IVBiological refuge
1.99 km² overlap
08451R025 Biological Refuge
IUCN IVBiological refuge
1.49 km² overlap
08451R022 Biological Refuge
IUCN IVBiological refuge
1.43 km² overlap
08451R052 Biological Refuge
IUCN IVBiological refuge
1.30 km² overlap
1 more protected areassorted by overlap area
08351R105 Biological Refuge
IUCN IVBiological refuge
1.10 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
618 distinct species · 8 210 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 34 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 Rivière Marquis : 22 espèces reliées par 117 interactions GloBI sur 3 types (connectance 20.9%, filtre Serrano α=0.2). 12 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°
1,0°C
Annual rain
952mm
Moisture idx (CMI)
0,27
Runoff
521mm/an
PET
693mm
AET
582mm
Mean slope
1,6°
Water table
42cm
Forest
82%
Crops
0%
Urban
0%
Protected
2%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)