Ontologia

HydroBASINS lev08 watershed · #7080710580

Bassin de San Cristobal Wash

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 : Pima, Yuma

Pfafstetter: 77221204

Sub-basin area

833,7km²

Upstream area

833,7km²

Discharge

0,13m³/s

Mean elev.

249m

Administrative coverage

Hydrographic chain

▼ Drains into

Bassin de San Cristobal Wash212 km²

▲ Receives from 0 basins

Source / headwater (no upstream basin)

2 dept-equivalent regions (GADM L2)

2 intersecting protected areas

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

Species present

244 distinct species · 933 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

933 obs · 15 cellules
Obs. / cellule
≥ 341
222–340
39–221
28–38
< 28

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

Ecological tissue

Sample of 53 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 Cristobal Wash : 36 espèces dont 2 patrimoniales (LR IUCN CR/EN/VU) reliées par 110 interactions GloBI sur 3 types (connectance 8.0%, filtre Serrano α=0.2). 17 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
53
Interactions affichées
110
Connectance
0.080
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°

22,6°C

Annual rain

131mm

Moisture idx (CMI)

-0,92

Runoff

5mm/an

PET

1 704mm

AET

109mm

Mean slope

2,5°

Water table

426cm

Forest

0%

Crops

0%

Urban

0%

Protected

75%

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