HydroBASINS lev08 watershed · #7080041790
Bassin de Mattaponi 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 7 administrative regions : Caroline, Essex, Gloucester, King William, King and Queen +2
Sub-basin area
2 337,5km²
Upstream area
2 337,5km²
Discharge
30,37m³/s
Mean elev.
59m
Administrative coverage
7 dept-equivalent regions (GADM L2)
- Caroline929.0 km²39.7% of basin
- 560.2 km²24.0% of basin
- 539.8 km²23.1% of basin
- 291.6 km²12.5% of basin
- Orange11.9 km²0.5% of basin
- Essex5.7 km²0.2% of basin
- Gloucester0.5 km²0.0% of basin
10 intersecting protected areas
Chesapeake Bay Estuarine Complex
IUCN Not ReportedWetland of International Importance (Ramsar Site)
142.14 km² overlap
Oakley Forest
IUCN VWildlife Management Area
18.02 km² overlap
The Nature Conservancy
IUCN VEasement
12.19 km² overlap
Mattaponi
IUCN VWildlife Management Area
10.32 km² overlap
Cln-Vof-03986
IUCN Not AssignedConservation Easement
1.60 km² overlap
Catherines Meadow
IUCN VLocal Conservation Area
1.21 km² overlap
Mattaponi River Megasite
IUCN VEasement
0.45 km² overlap
Reserve Program
0.39 km² overlap
Reserve Program
0.15 km² overlap
1 more protected areassorted by overlap area
Mattaponi River Megasite
IUCN VPrivate Conservation Land
0.10 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
2 357 distinct species · 148 057 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 36 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 Mattaponi River : 26 espèces reliées par 77 interactions GloBI sur 4 types (connectance 11.6%, filtre Serrano α=0.2). 11 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°
13,6°C
Annual rain
1 083mm
Moisture idx (CMI)
-0,09
Runoff
416mm/an
PET
1 190mm
AET
876mm
Mean slope
1,3°
Water table
71cm
Forest
99%
Crops
13%
Urban
1%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)