Ontologia

HydroBASINS lev08 watershed · #6080018450

Bassin de Arroyo Napostá Grande

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 4 administrative regions : Bahía Blanca, Coronel de Marina Leonardo Rosal, Tornquist, Villarino

Coastal basin 3% lakePfafstetter: 65190500

Sub-basin area

832,8km²

Upstream area

832,8km²

Discharge

0,07m³/s

Mean elev.

78m

Administrative coverage

4 dept-equivalent regions (GADM L2)

2 intersecting protected areas

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

Species present

653 distinct species · 7 781 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

7 781 obs · 28 cellules
Obs. / cellule
≥ 2 167
714–2 166
237–713
36–236
< 36

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

Ecological tissue

Sample of 35 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 Arroyo Napostá Grande : 24 espèces reliées par 52 interactions GloBI sur 4 types (connectance 8.7%, filtre Serrano α=0.2). 11 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
35
Interactions affichées
52
Connectance
0.087
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°

15,1°C

Annual rain

618mm

Moisture idx (CMI)

-0,51

Runoff

94mm/an

PET

1 268mm

AET

526mm

Mean slope

0,4°

Water table

68cm

Forest

0%

Crops

35%

Urban

10%

Protected

0%

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