Ontologia

HydroBASINS lev08 watershed · #7080604400

Bassin de San Juan 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 : San Juan

Pfafstetter: 77260107

Sub-basin area

568,5km²

Upstream area

60 288km²

Discharge

92,08m³/s

Mean elev.

1 669m

Administrative coverage

Hydrographic chain

▼ Drains into

Bassin de San Juan River81 km²

▲ Receives from 2 basins

1 dept-equivalent regions (GADM L2)

2 intersecting protected areas

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

Species present

564 distinct species · 8 098 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

8 098 obs · 13 cellules
Obs. / cellule
≥ 2 054
1 561–2 053
1 203–1 560
194–1 202
< 194

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

Ecological tissue

Sample of 48 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 San Juan River : 27 espèces dont 3 patrimoniales (LR IUCN CR/EN/VU) reliées par 132 interactions GloBI sur 4 types (connectance 10.8%, filtre Serrano α=0.2). 23 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
50
Interactions affichées
132
Connectance
0.108
Patrimoniales
3
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°

11,9°C

Annual rain

227mm

Moisture idx (CMI)

-0,82

Runoff

15mm/an

PET

1 268mm

AET

195mm

Mean slope

9,1°

Water table

1 213cm

Forest

3%

Crops

3%

Urban

0%

Protected

15%

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