HydroBASINS lev08 watershed · #6080037380
Bassin de Río Ewan Sur
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 : Rió Grande
Sub-basin area
1 352,8km²
Upstream area
1 353,1km²
Discharge
9,75m³/s
Mean elev.
145m
Administrative coverage
1 dept-equivalent regions (GADM L2)
- 1358.7 km²100.0% of basin
4 intersecting protected areas
Corazon de la Isla
IUCN VIMultiple Use Provincial Reserve
24.48 km² overlap
Reserva Costa Atlantica de Tierra del Fuego
IUCN Not ReportedWetland of International Importance (Ramsar Site)
15.19 km² overlap
Hemispheric Shorebird Reserve
11.85 km² overlap
Laguna Negra
IUCN VIMultiple Use Provincial Reserve
0.38 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
436 distinct species · 22 714 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 43 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).
Indicateurs du tissu écologique
Tissu écologique de Bassin de Río Ewan Sur : 32 espèces reliées par 56 interactions GloBI sur 6 types (connectance 5.4%, filtre Serrano α=0.2). 14 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).
Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).
Hydroclimate (BasinATLAS lev08)
Mean T°
4,9°C
Annual rain
392mm
Moisture idx (CMI)
-0,31
Runoff
245mm/an
PET
572mm
AET
353mm
Mean slope
3,7°
Water table
354cm
Forest
79%
Crops
0%
Urban
0%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)