HydroBASINS lev08 watershed · #7080538190
Bassin de Perkiomen 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 5 administrative regions : Berks, Bucks, Chester, Lehigh, Montgomery
Sub-basin area
936,7km²
Upstream area
936,8km²
Discharge
19,39m³/s
Mean elev.
133m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
5 dept-equivalent regions (GADM L2)
- Montgomery560.9 km²59.8% of basin
- 196.5 km²21.0% of basin
- 114.8 km²12.2% of basin
- 65.2 km²7.0% of basin
- 0.4 km²0.0% of basin
22 intersecting protected areas
Evansburg
IUCN IIIState Park
13.41 km² overlap
Musser Scout
IUCN Not AssignedReservation
4.83 km² overlap
Fulshaw Craeg
IUCN VPreserve
1.30 km² overlap
Audubon
IUCN VWildlife Sanctuary
0.63 km² overlap
Camp Unami Acquisitions/Snyder
IUCN Not AssignedEasement
0.59 km² overlap
Kaufman
IUCN Not AssignedConservation Easement
0.33 km² overlap
Private Conservation
0.33 km² overlap
Valley Forge
IUCN IIINational Historical Park
0.25 km² overlap
Underkoffler
IUCN Not AssignedConservation Easement
0.22 km² overlap
13 more protected areassorted by overlap area
Williams Property Acquisition
IUCN Not AssignedConservation Easement
0.21 km² overlap
Oley Hills: Jones, Kriebel and Morning Properties
IUCN Not AssignedConservation Easement
0.14 km² overlap
Brandywine Conservancy
IUCN Not AssignedEasement
0.11 km² overlap
Reserve Program
0.10 km² overlap
Private Conservation
0.06 km² overlap
Stone Hills
IUCN VPreserve
0.05 km² overlap
Private Conservation
0.04 km² overlap
Environmental System
0.04 km² overlap
Klaber
IUCN VPreserve
0.04 km² overlap
Reserve Program
0.03 km² overlap
Drescher-Lehman
IUCN Not AssignedConservation Easement
0.03 km² overlap
Lyons
IUCN Not AssignedConservation Easement
0.02 km² overlap
Fellowship Farm
IUCN Not AssignedConservation Easement
0.01 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
4 628 distinct species · 1 377 694 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 39 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 Perkiomen Creek : 28 espèces reliées par 87 interactions GloBI sur 4 types (connectance 11.7%, 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°
10,7°C
Annual rain
1 139mm
Moisture idx (CMI)
0,09
Runoff
652mm/an
PET
1 039mm
AET
836mm
Mean slope
2,7°
Water table
195cm
Forest
79%
Crops
20%
Urban
26%
Protected
2%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)