Subcuenca del Cotahuasi
IUCN VLandscape Reserve · 2005
4 903 km²
Province · PER
La Unión
Peru
ETPolar, tundra(81 %)
Species observed
292
Observations
2 416
Area
4 893,6km²
Ecological tissue
Sample of 27 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 La Unión : 19 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 29 interactions GloBI sur 4 types (connectance 8.3%, filtre Serrano α=0.2). 8 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).
Espèces affichées
27
Interactions affichées
29
Connectance
0.083
Patrimoniales
1
Plus dense que (national)0 %(top 100%)
Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).
Species present
292 distinct species · 2 416 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Climate
Mean T°
4,0°C
Annual rain
1 399mm
Warmest m°
11,5°C
Coldest m°
-3,8°C
Elevation: 4 301 m on average (min 1 105 m, max 5 705 m)
Bioclimatic details19 BIO + Köppen full + altitude statsExpert
Annual mean temp.
4,0°C
Annual rain
1 399mm
Warmest month
11,5°C
Coldest month
-3,8°C
Mean alt.
4 301m
Min
1 105m
Max
5 705m
Std. dev.
870m
Köppen-Geiger (dominant)
ETPolar, tundra(81 %)Polar
CHELSA BIO 1-19 v2.1 · ETOPO DEM 60s · Köppen-Geiger 1991-2020 (Beck et al. 2018)
Soil & lithology
pH H₂O
6,6
Org. C
38,8g/kg
Clay
21,0%
Sand
49,1%
Silt
29,9%
Average over 0-30 cm. Per-depth details in expert panel.
Dominant lithology: suGLiM
3 soil depths detailed0-5cm / 5-15cm / 15-30cm × 5 propsExpert
0–5 cm
pH H₂O
6,6
Org. C
50,9g/kg
Clay
20,2%
Sand
49,6%
Silt
30,1%
5–15 cm
pH H₂O
6,6
Org. C
39,1g/kg
Clay
20,7%
Sand
49,4%
Silt
29,9%
15–30 cm
pH H₂O
6,7
Org. C
26,4g/kg
Clay
22,1%
Sand
48,2%
Silt
29,7%
SoilGrids 250m (ISRIC, 2017) · GLiM v1.0 (Hartmann & Moosdorf 2012)
Land cover
Forest0.9%
Crops1.8%
Built-up0.0%
Bare soil39.1%
Other (grassland, water…)58.2%
Copernicus Global Land Cover 100m (Buchhorn et al. 2020)
Hydrology21 basins · 15 lakes · 4 rivers
Hydrology metrics for this exact territory
Stream length here
332,6km
Lake surface here
12,14km²
Basins crossed
21
Max stream order
5
Max drainage
10 736km²
Discharge in basins
195,2m³/s
Mean precip.
639mm/an
Mean T°
4,7°C
Moisture idx
-0,38
Max snow
4%
Mean runoff
311mm/an
Mean elev. (basins)
4 287m
Watersheds crossing here
- Bassin de Cotahuasi Canyonsub-area1 143,6 km²overlap1130.99 km²23%
- Bassin de Río Samanasub-area816,6 km²overlap803.94 km²16%
- Bassin de Rio Pampamarcasub-area656,8 km²overlap651.13 km²13%
- Bassin de Cotahuasi Canyonsub-area465,8 km²overlap462.02 km²9%
- Basin #02010sub-area416,2 km²overlap410.37 km²8%
- Basin #02000sub-area324,5 km²overlap321.43 km²7%
- Basin #03560sub-area257,1 km²overlap256.19 km²5%
- Basin #03550sub-area222,3 km²overlap221.49 km²5%
- Bassin de Cotahuasi Canyonsub-area490,3 km²overlap204.31 km²4%
12 more basinssorted by overlap
- Bassin de Río Majessub-area2 657,7 km²overlap129.54 km²3%
- Bassin de Río Uchubambasub-area291 km²overlap118.69 km²2%
- Bassin de Cotahuasi Canyonsub-area83,8 km²overlap83.51 km²2%
- Bassin de Río Pallancatasub-area999,5 km²overlap52.57 km²1%
- Bassin de Río Ocoñasub-area1 622,8 km²overlap32.06 km²1%
- Bassin de Río Oyolosub-area1 041,4 km²overlap4.92 km²0%
- Basin #87830sub-area637,2 km²overlap3.90 km²0%
- Bassin de Río Ichunisub-area2 548 km²overlap3.06 km²0%
- Bassin de Río Yavinasub-area549,6 km²overlap2.43 km²0%
- Bassin de Río Ocoñasub-area18,8 km²overlap0.69 km²0%
- Bassin de Río Yavinasub-area312,8 km²overlap0.23 km²0%
- Bassin de Río Velillesub-area3 669,8 km²overlap0.13 km²0%
Lakes (15, top by area)
- Laguna Ecmaarea4,5 km²avg depth17.1 m
- Laguna Huansoarea1,8 km²avg depth11.0 m
- Lagunas Huanzoarea1,1 km²avg depth7.3 m
- Lac 1094494area0,8 km²avg depth5.0 m
- Lac 1094273area0,7 km²avg depth4.2 m
- Lac 1094421area0,7 km²avg depth5.3 m
- Lac 1094197area0,5 km²avg depth7.1 m
- Lac 1094430area0,4 km²avg depth5.2 m
- Lac 1094455area0,4 km²avg depth4.6 m
Rivers / streams (4, ord ≥ 4)
Live spatial overlap (cached after first hit) · HydroBASINS lev08 × HydroLAKES × HydroRIVERS v10
Human pressure
Pop. density
0hab/km²
Night light
0,0nW
Built-up
2,0%
Pesticides
30,3kg/km²
GHSL POP/Built 2020 · VIIRS lumière nocturne · PEST-CHEMGRIDS 2020 (Maggi et al.)
Protected areas1
IUCN V · 1
WDPA (World Database on Protected Areas) — UNEP-WCMC & IUCN