HydroBASINS lev08 watershed · #7080701210
Bassin de Holdout 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 1 administrative regions : Graham
Sub-basin area
286,5km²
Upstream area
286,5km²
Discharge
0,12m³/s
Mean elev.
1 305m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
1 dept-equivalent regions (GADM L2)
- Graham286.3 km²100.0% of basin
2 intersecting protected areas
Santa Teresa
IUCN IbWilderness
88.19 km² overlap
North Santa Teresa
IUCN IbWilderness Area
23.46 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
559 distinct species · 1 191 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 20 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 Holdout Creek : 17 espèces reliées par 22 interactions GloBI sur 3 types (connectance 11.6%, filtre Serrano α=0.2). 3 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°
15,6°C
Annual rain
403mm
Moisture idx (CMI)
-0,73
Runoff
12mm/an
PET
1 520mm
AET
339mm
Mean slope
9,1°
Water table
666cm
Forest
45%
Crops
1%
Urban
0%
Protected
39%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)