HydroBASINS lev08 watershed · #7080414720
Bassin de la Motte Passage
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 2 administrative regions : Clinton, Grand Isle
Sub-basin area
35,7km²
Upstream area
20 077,9km²
Discharge
390,95m³/s
Mean elev.
34m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Alburg Passage213 km²
- Bassin de Alburg Passage29 km²
2 dept-equivalent regions (GADM L2)
- 35.7 km²99.8% of basin
- ClintonNew York · United States0.1 km²0.2% of basin
2 intersecting protected areas
Alburg Dunes
IUCN VState Park
1.02 km² overlap
Reserve Program
0.38 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
1 018 distinct species · 20 737 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 44 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 Motte Passage : 31 espèces dont 2 patrimoniales (LR IUCN CR/EN/VU) reliées par 116 interactions GloBI sur 4 types (connectance 11.7%, 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°
6,7°C
Annual rain
841mm
Moisture idx (CMI)
-0,04
Runoff
573mm/an
PET
872mm
AET
656mm
Mean slope
0,7°
Water table
50cm
Forest
60%
Crops
25%
Urban
0%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)