HydroBASINS lev08 watershed · #6080975370
Bassin de Río Milna
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 across 2 countries : Antártica Chilena, Rió Grande, Tierra del Fuego, Ushuaia
Sub-basin area
1 336,7km²
Upstream area
1 336,7km²
Discharge
13,54m³/s
Mean elev.
313m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
4 dept-equivalent regions (GADM L2)
- 1320.3 km²98.4% of basin
- 19.3 km²1.4% of basin
- 1.4 km²0.1% of basin
- 0.7 km²0.1% of basin
4 intersecting protected areas
Rio Valdez
IUCN VIMultiple Use Provincial Reserve
27.36 km² overlap
Yendegaia
IUCN Not ReportedNational Park
20.65 km² overlap
Cabo de Hornos (RB)
IUCN Not ApplicableUNESCO-MAB Biosphere Reserve
5.81 km² overlap
Corazon de la Isla
IUCN VIMultiple Use Provincial Reserve
0.07 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
577 distinct species · 6 200 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 36 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 Milna : 27 espèces reliées par 41 interactions GloBI sur 4 types (connectance 6.2%, filtre Serrano α=0.2). 10 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°
4,1°C
Annual rain
507mm
Moisture idx (CMI)
-0,06
Runoff
328mm/an
PET
541mm
AET
404mm
Mean slope
10,6°
Water table
378cm
Forest
44%
Crops
0%
Urban
0%
Protected
12%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)