HydroBASINS lev08 watershed · #7080075190

Bassin de Sand 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 : Lassen, Modoc, Washoe

Endorheic 74% lakePfafstetter: 77360101

Sub-basin area

1 525,3km²

Upstream area

1 525,5km²

Discharge

2,53m³/s

Mean elev.

1 654m

Administrative coverage

3 dept-equivalent regions (GADM L2)

Modoc
California · United States
928.1 km²
60.8% of basin
Washoe
Nevada · United States
469.9 km²
30.8% of basin
Lassen
California · United States
129.4 km²
8.5% of basin

8 intersecting protected areas

South Warner
IUCN Ib
Wilderness
141.52 km² overlap
Raider Basin
IUCN Ia
Research Natural Area
25.01 km² overlap
South Warner Contiguous
IUCN Ib
Wilderness Study Area
17.53 km² overlap
Silver Creek
IUCN V
Wildlife Area
7.89 km² overlap
Wetlands Reserve Program (WRP), Modoc, CA
IUCN V
Reserve Program
4.08 km² overlap
Wetlands Reserve Program (WRP), Washoe, NV
IUCN Not Assigned
Reserve Program
3.54 km² overlap
Wetlands Reserve Program (WRP)
IUCN Not Assigned
Reserve Program
2.47 km² overlap
Surprise Valley
IUCN V
Wildlife Area
1.88 km² overlap

Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.

Species present

1 836 distinct species · 31 440 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Ecological tissue

Sample of 37 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).

RègnesAnimalPlanteChampignonBacterie

RelationsPredationParasitismeSymbiosePollinisation

StatutEn dangerVulnérableProtégéeEndémique

RègnesAnimalPlanteChampignonBacterie

RelationsPredationParasitismeSymbiosePollinisation

StatutEn dangerVulnérableProtégéeEndémique

Indicateurs du tissu écologique

Tissu écologique de Bassin de Sand Creek : 26 espèces reliées par 100 interactions GloBI sur 4 types (connectance 15.0%, filtre Serrano α=0.2). 11 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées

Interactions affichées

100

Connectance

0.150

Patrimoniales

Plus dense que (national)0 %(top 100%)

Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).

Hydroclimate (BasinATLAS lev08)

Mean T°

7,5°C

Annual rain

369mm

Moisture idx (CMI)

-0,65

Runoff

93mm/an

PET

1 087mm

AET

317mm

Mean slope

7,3°

Water table

375cm

Forest

42%

Crops

Urban

Protected

10%

HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)