HydroBASINS lev08 watershed · #7080013440
Bassin de Newark Slough
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 1 administrative regions : Alameda
Sub-basin area
72,8km²
Upstream area
72,8km²
Discharge
0,4m³/s
Mean elev.
2m
Administrative coverage
1 dept-equivalent regions (GADM L2)
- 68.2 km²93.6% of basin
3 intersecting protected areas
Marine Protected Area
30.66 km² overlap
National Wildlife Refuge
28.74 km² overlap
Eden Landing
IUCN VEcological Reserve
1.83 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
1 646 distinct species · 568 554 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 31 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 Newark Slough : 19 espèces reliées par 68 interactions GloBI sur 3 types (connectance 13.7%, filtre Serrano α=0.2). 13 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°
14,8°C
Annual rain
388mm
Moisture idx (CMI)
-0,65
Runoff
208mm/an
PET
1 105mm
AET
333mm
Mean slope
0,2°
Water table
13cm
Forest
14%
Crops
0%
Urban
39%
Protected
47%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)