Ontologia

HydroBASINS lev08 watershed · #7080074340

Bassin de South Twin 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 : Lander, Nye

EndorheicPfafstetter: 77340301

Sub-basin area

3 408,4km²

Upstream area

3 408,6km²

Discharge

3,67m³/s

Mean elev.

2 064m

Administrative coverage

2 dept-equivalent regions (GADM L2)

6 intersecting protected areas

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

Species present

1 454 distinct species · 19 704 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

19 704 obs · 90 cellules
Obs. / cellule
≥ 1 958
816–1 957
135–815
57–134
< 57

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

Ecological tissue

Sample of 47 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 South Twin River : 33 espèces reliées par 110 interactions GloBI sur 4 types (connectance 10.2%, filtre Serrano α=0.2). 14 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
47
Interactions affichées
110
Connectance
0.102
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°

7,4°C

Annual rain

260mm

Moisture idx (CMI)

-0,76

Runoff

48mm/an

PET

1 139mm

AET

227mm

Mean slope

8,3°

Water table

612cm

Forest

27%

Crops

1%

Urban

0%

Protected

8%

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