HydroBASINS lev08 watershed · #7080039200
Bassin de Ipswich 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 : Essex, Middlesex
Sub-basin area
396,6km²
Upstream area
396,8km²
Discharge
9,82m³/s
Mean elev.
34m
Administrative coverage
2 dept-equivalent regions (GADM L2)
- 320.0 km²80.5% of basin
- 76.3 km²19.2% of basin
30 intersecting protected areas
Willowdale
IUCN VIState Forest
8.57 km² overlap
Boxford
IUCN VIState Forest
4.02 km² overlap
Ipswich River
IUCN VAccess
3.19 km² overlap
Coolidge Farm CR/APR
IUCN Not AssignedConservation Easement
1.91 km² overlap
Cedar Swamp
IUCN VLocal Conservation Area
1.74 km² overlap
Middleton
IUCN VPond
1.60 km² overlap
J. C. Phillips
IUCN VSanctuary
1.53 km² overlap
PCL
1.51 km² overlap
Ward
IUCN VReservation
1.26 km² overlap
21 more protected areassorted by overlap area
Wenham Swamp
IUCN VPrivate Conservation
1.15 km² overlap
Greenbelt
1.11 km² overlap
Appleton Farms
IUCN VPCL
0.97 km² overlap
Ipswich River
IUCN VWildlife Sanctuary
0.79 km² overlap
Gravelly Pond Watershed
IUCN Not AssignedWatershed
0.69 km² overlap
Windrush Farm CR
IUCN Not AssignedConservation Easement
0.65 km² overlap
Cedar Pond Area
IUCN VPond
0.65 km² overlap
Moraine Farm CR
IUCN Not AssignedConservation Easement
0.65 km² overlap
Windrush Farm Cr
IUCN VLocal Conservation Area
0.60 km² overlap
Reservation
0.60 km² overlap
Pingree
IUCN VPCL
0.57 km² overlap
Wunnegen
IUCN VConservation Area
0.56 km² overlap
Greenwood Farm
IUCN VPCL
0.53 km² overlap
Heartbreak Hill
IUCN VReservation
0.52 km² overlap
Barett
IUCN VReservation
0.51 km² overlap
Means
IUCN Not AssignedConservation Easement
0.50 km² overlap
Long Hill
IUCN VPCL
0.49 km² overlap
Bear Meadow
IUCN VConservation Area
0.48 km² overlap
Harvard
IUCN VForest
0.46 km² overlap
Winthrop CR
IUCN Not AssignedConservation Easement
0.45 km² overlap
Ipswich River
IUCN VPrivate Conservation
0.43 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
3 985 distinct species · 811 272 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 35 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 Ipswich River : 23 espèces reliées par 79 interactions GloBI sur 4 types (connectance 13.3%, 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°
9,3°C
Annual rain
1 139mm
Moisture idx (CMI)
0,16
Runoff
800mm/an
PET
954mm
AET
750mm
Mean slope
1,6°
Water table
73cm
Forest
80%
Crops
4%
Urban
33%
Protected
6%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)