Ontologia

HydroBASINS lev08 watershed · #7080608140

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 2 administrative regions : Navajo, San Juan

14% lakePfafstetter: 77260103

Sub-basin area

1 842,5km²

Upstream area

63 839,9km²

Discharge

93,98m³/s

Mean elev.

1 565m

Administrative coverage

Hydrographic chain

▼ Drains into

Bassin de San Juan River299 km²

▲ Receives from 2 basins

2 dept-equivalent regions (GADM L2)

1 intersecting protected areas

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

Species present

416 distinct species · 3 366 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

3 366 obs · 46 cellules
Obs. / cellule
≥ 957
149–956
32–148
17–31
< 17

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

Ecological tissue

Sample of 56 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 : 38 espèces dont 2 patrimoniales (LR IUCN CR/EN/VU) reliées par 87 interactions GloBI sur 4 types (connectance 5.6%, filtre Serrano α=0.2). 18 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
56
Interactions affichées
87
Connectance
0.057
Patrimoniales
2
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°

12,9°C

Annual rain

181mm

Moisture idx (CMI)

-0,86

Runoff

15mm/an

PET

1 295mm

AET

156mm

Mean slope

8,2°

Water table

1 022cm

Forest

1%

Crops

1%

Urban

0%

Protected

3%

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