Ontologia

HydroBASINS lev08 watershed · #7080479500

Bassin de Williamson 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 1 administrative regions : Klamath

25% lakePfafstetter: 77480709

Sub-basin area

99,7km²

Upstream area

7 755,3km²

Discharge

36,92m³/s

Mean elev.

1 388m

Administrative coverage

Hydrographic chain

Drains into

Receives from 2 basins

1 dept-equivalent regions (GADM L2)

3 intersecting protected areas

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

Species present

430 distinct species · 7 377 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

7 377 obs · 3 cellules
Obs. / cellule
≥ 3 412
3 412–3 411
3 412–3 411
2 514–3 411
< 2 514

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

Ecological tissue

Sample of 38 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 Williamson River : 28 espèces reliées par 110 interactions GloBI sur 4 types (connectance 15.6%, filtre Serrano α=0.2). 10 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
38
Interactions affichées
110
Connectance
0.157
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°

6,8°C

Annual rain

542mm

Moisture idx (CMI)

-0,48

Runoff

258mm/an

PET

1 045mm

AET

455mm

Mean slope

4,0°

Water table

371cm

Forest

70%

Crops

10%

Urban

0%

Protected

11%

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