HydroBASINS lev08 watershed · #7080450880
Bassin de Johnson Creek
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 : Lake Ontario, Niagara, Orleans
Sub-basin area
449,8km²
Upstream area
449,8km²
Discharge
6,36m³/s
Mean elev.
107m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
3 dept-equivalent regions (GADM L2)
- Lake OntarioNew York · United States172.0 km²38.2% of basin
- OrleansNew York · United States162.2 km²36.0% of basin
- NiagaraNew York · United States116.4 km²25.8% of basin
4 intersecting protected areas
Hartland Swamp
IUCN VWildlife Management Area
1.00 km² overlap
Reserve Program
0.83 km² overlap
Unknown
IUCN VState Conservation Area
0.11 km² overlap
Niagara County Lands
IUCN VLocal Conservation Area
0.03 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
1 739 distinct species · 34 566 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 Johnson Creek : 25 espèces reliées par 69 interactions GloBI sur 3 types (connectance 11.6%, filtre Serrano α=0.2). 10 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°
8,4°C
Annual rain
823mm
Moisture idx (CMI)
-0,08
Runoff
446mm/an
PET
890mm
AET
651mm
Mean slope
0,4°
Water table
10cm
Forest
16%
Crops
35%
Urban
0%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)