HydroBASINS lev08 watershed · #7080039530
Bassin de Ponaganset 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 : Kent, Providence, Washington
Sub-basin area
1 013,9km²
Upstream area
1 013,9km²
Discharge
0,16m³/s
Mean elev.
65m
Administrative coverage
3 dept-equivalent regions (GADM L2)
- 342.0 km²33.7% of basin
- Washington321.8 km²31.7% of basin
- Kent316.7 km²31.2% of basin
30 intersecting protected areas
Trustom Pond
IUCN IVNational Wildlife Refuge
3.39 km² overlap
Ninigret
IUCN IVNational Wildlife Refuge
3.25 km² overlap
Marine Protected Area
3.25 km² overlap
Marine Protected Area
3.23 km² overlap
George B Parker Woodland
IUCN VPark
2.61 km² overlap
John H. Chafee
IUCN IVNational Wildlife Refuge
2.29 km² overlap
Marine Protected Area
2.23 km² overlap
Unknown
IUCN VPark
1.70 km² overlap
Easement
1.65 km² overlap
21 more protected areassorted by overlap area
Maxwell Mays Property
IUCN VPrivate Conservation
1.13 km² overlap
Viall
IUCN Not AssignedConservation Easement
0.87 km² overlap
Winnapaug
IUCN VPond
0.75 km² overlap
Money Swamp Pond Fee
IUCN VPond
0.71 km² overlap
Steere Hill
IUCN VPrivate Conservation
0.62 km² overlap
Cardi Swamp
IUCN VWildlife Refuge
0.60 km² overlap
Belleville
IUCN VPond
0.58 km² overlap
Unknown
IUCN VPark
0.54 km² overlap
Private Conservation Land
0.53 km² overlap
Lathrop
IUCN Not AssignedConservation Easement
0.52 km² overlap
Marine Protected Area
0.52 km² overlap
Block Island
IUCN IVNational Wildlife Refuge
0.52 km² overlap
Gilbert Stuart Road
IUCN VPrivate Conservation
0.51 km² overlap
Brightman Farms
IUCN VWatershed Protection Area
0.49 km² overlap
Comm O H Perry Highway
IUCN VPrivate Conservation
0.48 km² overlap
Lewis-Dickens Farm
IUCN VPrivate Conservation
0.48 km² overlap
Unknown
IUCN VPark
0.46 km² overlap
Stook Hill
IUCN VPrivate Conservation
0.45 km² overlap
Watershed Protection
0.43 km² overlap
Hopkins Mill
IUCN VPond
0.43 km² overlap
Unknown
IUCN VPark
0.41 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
5 138 distinct species · 1 179 331 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 Ponaganset River : 25 espèces reliées par 69 interactions GloBI sur 3 types (connectance 12.3%, filtre Serrano α=0.2). 9 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°
9,5°C
Annual rain
1 196mm
Moisture idx (CMI)
0,22
Runoff
791mm/an
PET
932mm
AET
758mm
Mean slope
1,8°
Water table
233cm
Forest
89%
Crops
3%
Urban
27%
Protected
5%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)