HydroBASINS lev08 watershed · #7080038570
Bassin de Machias 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 : Hancock, Washington
Sub-basin area
2 051,1km²
Upstream area
2 051,1km²
Discharge
47,46m³/s
Mean elev.
79m
Administrative coverage
2 dept-equivalent regions (GADM L2)
- Washington1930.5 km²93.9% of basin
- Hancock122.0 km²5.9% of basin
13 intersecting protected areas
Machias River
IUCN Not AssignedConservation Easement
86.93 km² overlap
Duck Lake
IUCN VEcological Reserve
15.59 km² overlap
Rocky Lake
IUCN VEcological Reserve
6.27 km² overlap
Machias River
IUCN VPCL
3.70 km² overlap
Lake
0.47 km² overlap
Middle River
IUCN VPCL
0.44 km² overlap
Beaver Dam Stream
IUCN VPCL
0.42 km² overlap
PCL
0.37 km² overlap
Private Conservation
0.29 km² overlap
4 more protected areassorted by overlap area
Private Conservation
0.09 km² overlap
Machias River
IUCN Not AssignedConservation Easement
0.09 km² overlap
Private Conservation
0.04 km² overlap
Gaddis
IUCN IIIPool
0.01 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
1 560 distinct species · 41 821 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 Machias River : 26 espèces reliées par 83 interactions GloBI sur 4 types (connectance 12.5%, 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°
5,9°C
Annual rain
1 186mm
Moisture idx (CMI)
0,29
Runoff
800mm/an
PET
837mm
AET
687mm
Mean slope
2,0°
Water table
133cm
Forest
89%
Crops
3%
Urban
0%
Protected
2%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)