HydroBASINS lev08 watershed · #7080041710
Bassin de Dragon Run
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 4 administrative regions : Essex, Gloucester, King and Queen, Middlesex
Sub-basin area
438,3km²
Upstream area
438,4km²
Discharge
5,84m³/s
Mean elev.
33m
Administrative coverage
4 dept-equivalent regions (GADM L2)
- 175.7 km²40.1% of basin
- Middlesex113.1 km²25.8% of basin
- Gloucester79.8 km²18.2% of basin
- Essex65.9 km²15.0% of basin
7 intersecting protected areas
The Nature Conservancy
IUCN VEasement
46.20 km² overlap
Knq-Vof-4022
IUCN Not AssignedConservation Easement
3.11 km² overlap
Dragon Run
IUCN VPrivate Conservation Land
2.77 km² overlap
Dragon Run
IUCN VEasement
1.88 km² overlap
Dragon Run
IUCN VConservation Easement
0.78 km² overlap
Dragon Run VIMS Tract
IUCN Not AssignedState Other or Unknown
0.49 km² overlap
Revere / Haynes Property
IUCN VPrivate Conservation
0.03 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
1 403 distinct species · 46 940 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 50 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 Dragon Run : 42 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 93 interactions GloBI sur 4 types (connectance 7.6%, filtre Serrano α=0.2). 8 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°
14,2°C
Annual rain
1 101mm
Moisture idx (CMI)
-0,06
Runoff
406mm/an
PET
1 174mm
AET
881mm
Mean slope
1,1°
Water table
48cm
Forest
97%
Crops
15%
Urban
0%
Protected
1%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)