HydroBASINS lev08 watershed · #7080440630
Bassin de Swift 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 2 administrative regions : Carroll, Grafton
Sub-basin area
273,5km²
Upstream area
273,5km²
Discharge
9,72m³/s
Mean elev.
494m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
2 dept-equivalent regions (GADM L2)
- Carroll197.6 km²72.1% of basin
- 76.4 km²27.9% of basin
10 intersecting protected areas
Sandwich Range
IUCN IbWilderness
35.41 km² overlap
Albany
IUCN VTown Forest
1.22 km² overlap
Madison Boulder Woods
IUCN VPreserve
0.87 km² overlap
Stuart Mudd Memorial
IUCN VNature Preserve
0.43 km² overlap
Whitton
IUCN VPond
0.24 km² overlap
Whitton
IUCN VPond
0.17 km² overlap
The Bowl
IUCN IaResearch Natural Area
0.10 km² overlap
Lovejoy
IUCN VWildlife Preserve
0.09 km² overlap
Reserve Program
0.09 km² overlap
1 more protected areassorted by overlap area
Madison Boulder
IUCN VNatural Area
0.07 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
1 765 distinct species · 61 942 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 41 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 Swift River : 25 espèces reliées par 126 interactions GloBI sur 4 types (connectance 13.3%, filtre Serrano α=0.2). 19 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°
4,7°C
Annual rain
1 322mm
Moisture idx (CMI)
0,35
Runoff
1 120mm/an
PET
847mm
AET
739mm
Mean slope
10,0°
Water table
359cm
Forest
98%
Crops
1%
Urban
0%
Protected
31%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)