Auca Mahuida
IUCN VIMultiple Use Nature Reserve · 1996
764 km²
Department · ARG
Pehuenches
Argentina
BWkArid, desert, cold(49 %)
Species observed
577
Observations
3 255
Area
9 209,7km²
Ecological tissue
Sample of 47 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 Pehuenches : 31 espèces reliées par 63 interactions GloBI sur 5 types (connectance 5.8%, filtre Serrano α=0.2). 16 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).
Espèces affichées
47
Interactions affichées
63
Connectance
0.058
Patrimoniales
0
Plus dense que (national)0 %(top 100%)
Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).
Species present
577 distinct species · 3 255 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Climate
Mean T°
12,1°C
Annual rain
294mm
Warmest m°
28,9°C
Coldest m°
-1,6°C
Elevation: 1 032 m on average (min 453 m, max 3 795 m)
Bioclimatic details19 BIO + Köppen full + altitude statsExpert
Annual mean temp.
12,1°C
Annual rain
294mm
Warmest month
28,9°C
Coldest month
-1,6°C
Mean alt.
1 032m
Min
453m
Max
3 795m
Std. dev.
371m
Köppen-Geiger (dominant)
BWkArid, desert, cold(49 %)Arid
CHELSA BIO 1-19 v2.1 · ETOPO DEM 60s · Köppen-Geiger 1991-2020 (Beck et al. 2018)
Soil & lithology
pH H₂O
7,8
Org. C
12,9g/kg
Clay
17,8%
Sand
63,4%
Silt
18,8%
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
7,7
Org. C
14,2g/kg
Clay
14,8%
Sand
66,3%
Silt
19,0%
5–15 cm
pH H₂O
7,8
Org. C
10,7g/kg
Clay
18,3%
Sand
63,0%
Silt
18,7%
15–30 cm
pH H₂O
7,8
Org. C
13,9g/kg
Clay
20,2%
Sand
61,0%
Silt
18,8%
SoilGrids 250m (ISRIC, 2017) · GLiM v1.0 (Hartmann & Moosdorf 2012)
Land cover
Forest0.6%
Crops0.1%
Built-up0.0%
Bare soil36.6%
Other (grassland, water…)62.6%
Copernicus Global Land Cover 100m (Buchhorn et al. 2020)
Hydrology33 basins · 5 lakes · 20 rivers
Hydrology metrics for this exact territory
Stream length here
796,2km
Lake surface here
2,74km²
Basins crossed
33
Max stream order
5
Max drainage
23 657km²
Discharge in basins
655,5m³/s
Mean precip.
186mm/an
Mean T°
12,4°C
Moisture idx
-0,86
Max snow
19%
Mean runoff
97mm/an
Mean elev. (basins)
1 040m
Watersheds crossing here
- Bassin de Río Coloradosub-area1 720,8 km²overlap965.17 km²10%
- Bassin de Río Coloradosub-area726,5 km²overlap726.81 km²8%
- Bassin de Río Coloradosub-area1 002,7 km²overlap637.59 km²7%
- Basin #43440sub-area623,7 km²overlap624.03 km²7%
- Basin #24980sub-area587,8 km²overlap587.18 km²6%
- Basin #20690sub-area551,4 km²overlap549.17 km²6%
- Bassin de Arroyo Carranzasub-area529,8 km²overlap530.09 km²6%
- Basin #46560sub-area492,6 km²overlap492.84 km²5%
- Basin #44580sub-area430,6 km²overlap430.79 km²5%
24 more basinssorted by overlap
- Bassin de Arroyo Carranzasub-area2 744 km²overlap417.57 km²5%
- Bassin de Arroyo Carranzasub-area410,6 km²overlap410.80 km²4%
- Bassin de Cañada de las Avispassub-area2 456,1 km²overlap385.21 km²4%
- Bassin de Arroyo Los Pocitossub-area355,8 km²overlap356.02 km²4%
- Bassin de Río Neuquénsub-area714,8 km²overlap351.04 km²4%
- Bassin de Río Coloradosub-area719,2 km²overlap305.59 km²3%
- Bassin de Río Coloradosub-area1 465,9 km²overlap278.51 km²3%
- Bassin de Río Barrancassub-area451,3 km²overlap254.61 km²3%
- Bassin de Río Coloradosub-area1 593,5 km²overlap238.75 km²3%
- Bassin de Arroyo Chacaycosub-area405,3 km²overlap180.56 km²2%
- Bassin de Río Coloradosub-area466,3 km²overlap142.20 km²2%
- Bassin de Río Coloradosub-area255,7 km²overlap102.09 km²1%
- Bassin de Río Neuquénsub-area220,8 km²overlap101.18 km²1%
- Bassin de Arroyo Huara Cósub-area392,8 km²overlap45.95 km²0%
- Bassin de Río Coloradosub-area38,8 km²overlap17.77 km²0%
- Bassin de Arroyo Chadileusub-area396,8 km²overlap14.29 km²0%
- Basin #27980sub-area588 km²overlap13.32 km²0%
- Bassin de Río Barrancassub-area579,4 km²overlap12.49 km²0%
- Basin #28760sub-area527,7 km²overlap4.36 km²0%
- Bassin de Río Barrancassub-area4,6 km²overlap4.24 km²0%
- Bassin de Río Grandesub-area1 450 km²overlap1.08 km²0%
- Bassin de Acceso a planta Loma las Yeguassub-area432,6 km²overlap1.01 km²0%
- Bassin de Río Curi Leuvúsub-area2 214,6 km²overlap0.86 km²0%
- Bassin de Río Neuquénsub-area98,3 km²overlap0.01 km²0%
Lakes (5, top by area)
Rivers / streams (20, ord ≥ 4)
- Río Coloradoord 7len here347.06 km18%total1905 km
- Río Neuquénord 7len here75.03 km9%total839 km
- Arroyo Carranzaord 4len here53.35 km29%total183 km
- Cañada de las Avispasord 2len here53.00 km92%total58 km
- Río Barrancasord 4len here52.92 km29%total182 km
- Arroyo Butacóord 5len here44.21 km73%total61 km
- Arroyo Chacalcóord 3len here41.32 km100%total41 km
- Arroyo Chacaycoord 2len here27.36 km61%total45 km
- Arroyo Pequencóord 5len here23.89 km100%total24 km
- Arroyo Bajada de la Minaord 3len here19.04 km100%total19 km
- Arroyo Huitrínord 5len here15.75 km60%total26 km
- Arroyo Huantraicóord 3len here11.50 km100%total12 km
8 more river segmentssorted by Strahler order + length
- Arroyo Los Pocitosord 3len here11.07 km100%total11 km
- Arroyo Huara Cóord 3len here10.35 km26%total40 km
- Arroyo Chadileuord 3len here6.62 km9%total76 km
- Río Grandeord 5len here1.39 km0%total554 km
- Arroyo del Ñacoord 2len here1.14 km4%total27 km
- Arroyo del Mercadoord 5len here0.95 km1%total138 km
- Arroyo Amarilloord 3len here0.19 km0%total67 km
- Cañada de los Crucerosord 3len here0.04 km0%total57 km
Live spatial overlap (cached after first hit) · HydroBASINS lev08 × HydroLAKES × HydroRIVERS v10
Human pressure
Pop. density
0hab/km²
Night light
0,5nW
Built-up
2,8%
Pesticides
0,1kg/km²
GHSL POP/Built 2020 · VIIRS lumière nocturne · PEST-CHEMGRIDS 2020 (Maggi et al.)
Protected areas3
IUCN VI · 1IUCN Not Reported · 1IUCN II · 1
Parque Provincial El Tromen
IUCN Not ReportedWetland of International Importance (Ramsar Site) · 2006
354 km²
El Tromen
IUCN IIProvincial Park · 1971
300 km²
WDPA (World Database on Protected Areas) — UNEP-WCMC & IUCN