Râul Negru
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive) · 2022
23 km²
Commune · ROU
Catalina
Romania
DfbCold, no dry season, warm summer(100 %)
Species observed
11
Observations
12
Area
55,3km²
Partial data for this territory
Few observations recorded here. Real biodiversity is likely richer.
Ecological tissue
Sample of 3 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 Catalina : 3 espèces reliées par 2 interactions GloBI sur 1 type (connectance 66.7%, filtre Serrano α=0.2).
Espèces affichées
3
Interactions affichées
2
Connectance
0.667
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
11 distinct species · 12 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Climate
Mean T°
8,1°C
Annual rain
637mm
Warmest m°
23,2°C
Coldest m°
-7,0°C
Elevation: 547 m on average (min 532 m, max 567 m)
Bioclimatic details19 BIO + Köppen full + altitude statsExpert
Annual mean temp.
8,1°C
Annual rain
637mm
Warmest month
23,2°C
Coldest month
-7,0°C
Mean alt.
547m
Min
532m
Max
567m
Std. dev.
7m
Köppen-Geiger (dominant)
DfbCold, no dry season, warm summer(100 %)Cold
CHELSA BIO 1-19 v2.1 · ETOPO DEM 60s · Köppen-Geiger 1991-2020 (Beck et al. 2018)
Soil & lithology
pH H₂O
6,5
Org. C
27,1g/kg
Clay
36,5%
Sand
23,0%
Silt
40,5%
Average over 0-30 cm. Per-depth details in expert panel.
Dominant lithology: ssGLiM
3 soil depths detailed0-5cm / 5-15cm / 15-30cm × 5 propsExpert
0–5 cm
pH H₂O
6,5
Org. C
41,1g/kg
Clay
36,3%
Sand
23,3%
Silt
40,5%
5–15 cm
pH H₂O
6,4
Org. C
21,2g/kg
Clay
36,6%
Sand
23,2%
Silt
40,2%
15–30 cm
pH H₂O
6,6
Org. C
19,1g/kg
Clay
36,7%
Sand
22,3%
Silt
41,0%
SoilGrids 250m (ISRIC, 2017) · GLiM v1.0 (Hartmann & Moosdorf 2012)
Land cover
Forest2.8%
Crops70.2%
Built-up0.5%
Bare soil0.4%
Other (grassland, water…)26.1%
Copernicus Global Land Cover 100m (Buchhorn et al. 2020)
Hydrology1 basins · 0 lakes · 5 rivers
Hydrology metrics for this exact territory
Stream length here
24,3km
Basins crossed
1
Max stream order
4
Max drainage
2 323km²
Discharge in basins
0,5m³/s
Mean precip.
678mm/an
Mean T°
6,5°C
Moisture idx
-0,14
Max snow
22%
Mean runoff
257mm/an
Mean elev. (basins)
788m
Watersheds crossing here
Rivers / streams (5, ord ≥ 4)
Live spatial overlap (cached after first hit) · HydroBASINS lev08 × HydroLAKES × HydroRIVERS v10
Human pressure
Pop. density
0hab/km²
Night light
0,5nW
Built-up
54,1%
Pesticides
5,4kg/km²
GHSL POP/Built 2020 · VIIRS lumière nocturne · PEST-CHEMGRIDS 2020 (Maggi et al.)
Protected areas2
IUCN Not Reported · 2
Valea Râului Negru
IUCN Not ReportedSpecial Protection Area (Birds Directive) · 2016
23 km²
WDPA (World Database on Protected Areas) — UNEP-WCMC & IUCN