Ontologia

HydroBASINS lev08 watershed · #7080517780

Bassin de Pit River

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 2 administrative regions : Lassen, Modoc

10% lakePfafstetter: 77449930

Sub-basin area

547,6km²

Upstream area

9 257,3km²

Discharge

0m³/s

Mean elev.

1 475m

Administrative coverage

Hydrographic chain

▼ Drains into

Bassin de Beaver Creek562 km²

▲ Receives from 2 basins

2 dept-equivalent regions (GADM L2)

2 intersecting protected areas

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

Species present

627 distinct species · 5 645 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

5 645 obs · 16 cellules
Obs. / cellule
≥ 1 394
1 292–1 393
491–1 291
149–490
< 149

Source : GBIF — observations agrégées par hexagones 0.027° × 0.027° (~22km), filtre précision coordonnée < 10 km. Fond carte : OpenFreeMap · © OpenStreetMap.

Ecological tissue

Sample of 32 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

Indicateurs du tissu écologique

Tissu écologique de Bassin de Pit River : 19 espèces reliées par 114 interactions GloBI sur 4 types (connectance 20.3%, filtre Serrano α=0.2). 15 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
34
Interactions affichées
114
Connectance
0.203
Patrimoniales
0
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°

7,6°C

Annual rain

520mm

Moisture idx (CMI)

-0,53

Runoff

167mm/an

PET

1 123mm

AET

441mm

Mean slope

5,3°

Water table

298cm

Forest

73%

Crops

7%

Urban

0%

Protected

0%

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