HydroBASINS lev08 watershed · #7080535990
Bassin de Swatara 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 4 administrative regions : Berks, Dauphin, Lebanon, Schuylkill
Sub-basin area
1 464,5km²
Upstream area
1 464,8km²
Discharge
24,12m³/s
Mean elev.
202m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
4 dept-equivalent regions (GADM L2)
- 633.7 km²43.2% of basin
- 352.6 km²24.0% of basin
- 325.3 km²22.2% of basin
- 154.7 km²10.5% of basin
8 intersecting protected areas
Swatara
IUCN IIIState Park
14.59 km² overlap
Memorial Lake
IUCN IIIState Park
0.89 km² overlap
Reserve Program
0.50 km² overlap
Manada Conservancy
IUCN VEasement
0.35 km² overlap
Private Conservation
0.21 km² overlap
Agricultural Conservation Easement Program - Wetland Reserve Easements (ACEP-WRE), Schuylkill, PA
IUCN Not AssignedConservation Easement
0.11 km² overlap
Conservation Easement
0.11 km² overlap
Nature Park
0.05 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
4 230 distinct species · 825 164 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 Swatara Creek : 24 espèces reliées par 74 interactions GloBI sur 3 types (connectance 11.7%, filtre Serrano α=0.2). 12 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°
10,3°C
Annual rain
1 082mm
Moisture idx (CMI)
0,04
Runoff
516mm/an
PET
1 033mm
AET
814mm
Mean slope
3,9°
Water table
260cm
Forest
81%
Crops
37%
Urban
12%
Protected
1%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)