HydroBASINS lev08 watershed · #7080629000
Bassin de Upper Castor River
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 : New Madrid, Pemiscot, Stoddard
Sub-basin area
876,4km²
Upstream area
1 931,8km²
Discharge
37,32m³/s
Mean elev.
85m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Upper Castor River616 km²
- Bassin de Little River439 km²
3 dept-equivalent regions (GADM L2)
- 431.6 km²49.2% of basin
- 408.4 km²46.6% of basin
- 36.7 km²4.2% of basin
2 intersecting protected areas
Reserve Program
0.41 km² overlap
National Wildlife Refuge
0.05 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
310 distinct species · 906 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 40 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 Upper Castor River : 28 espèces reliées par 108 interactions GloBI sur 4 types (connectance 12.5%, filtre Serrano α=0.2). 14 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°
14,6°C
Annual rain
1 214mm
Moisture idx (CMI)
-0,02
Runoff
636mm/an
PET
1 235mm
AET
921mm
Mean slope
0,0°
Water table
3cm
Forest
15%
Crops
94%
Urban
0%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)