Ontologia

Commune · ROU

Bistret

Romania

CfaTemperate, no dry season, hot summer(100 %)

Species observed

90

Observations

261

Area

121,9km²

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 Bistret : 22 espèces dont 2 patrimoniales (LR IUCN CR/EN/VU) reliées par 54 interactions GloBI sur 3 types (connectance 15.4%, filtre Serrano α=0.2). 5 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
27
Interactions affichées
54
Connectance
0.154
Patrimoniales
2
Plus dense que (national)0 %(top 100%)

Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).

Species present

90 distinct species · 261 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

261 obs · 3 cellules
Obs. / cellule
≥ 246
246–245
246–245
12–245
< 12

Source : GBIF — observations agrégées par hexagones 0.027° × 0.027° (~22km), filtre précision coordonnée < 10 km. Fond carte : OpenFreeMap · © OpenStreetMap.

Climate

Mean T°

13,1°C

Annual rain

542mm

Warmest m°

30,0°C

Coldest m°

-3,6°C

Elevation: 30 m on average (min 25 m, max 53 m)

Bioclimatic detailsExpert
Annual mean temp.
13,1°C
Annual rain
542mm
Warmest month
30,0°C
Coldest month
-3,6°C
Mean alt.
30m
Min
25m
Max
53m
Std. dev.
4m
Köppen-Geiger (dominant)
CfaTemperate, no dry season, hot summer(100 %)Temperate

CHELSA BIO 1-19 v2.1 · ETOPO DEM 60s · Köppen-Geiger 1991-2020 (Beck et al. 2018)

Soil & lithology

pH H₂O

7,2

Org. C

21,1g/kg

Clay

34,0%

Sand

25,0%

Silt

40,9%

Average over 0-30 cm. Per-depth details in expert panel.

Dominant lithology: ssGLiM

3 soil depths detailedExpert
0–5 cm
pH H₂O
7,1
Org. C
31,0g/kg
Clay
33,8%
Sand
25,2%
Silt
41,0%
5–15 cm
pH H₂O
7,3
Org. C
17,3g/kg
Clay
33,6%
Sand
25,3%
Silt
41,0%
15–30 cm
pH H₂O
7,2
Org. C
15,1g/kg
Clay
34,5%
Sand
24,6%
Silt
40,9%

SoilGrids 250m (ISRIC, 2017) · GLiM v1.0 (Hartmann & Moosdorf 2012)

Land cover

Forest8.4%
Crops60.2%
Built-up0.3%
Bare soil0.8%
Other (grassland, water…)30.3%

Copernicus Global Land Cover 100m (Buchhorn et al. 2020)

Hydrology3 basins · 2 lakes · 3 rivers

Hydrology metrics for this exact territory

Stream length here

16,5km

Lake surface here

8,59km²

Basins crossed

3

Max stream order

8

Max drainage

574 374km²

Discharge in basins

1 508,0m³/s

Mean precip.

586mm/an

Mean T°

11,5°C

Moisture idx

-0,40

Max snow

10%

Mean runoff

116mm/an

Mean elev. (basins)

87m

Watersheds crossing here

Lakes (2, top by area)

Live spatial overlap (cached after first hit) · HydroBASINS lev08 × HydroLAKES × HydroRIVERS v10

Human pressure

Pop. density

0hab/km²

Night light

0,2nW

Built-up

33,5%

Pesticides

5,6kg/km²

GHSL POP/Built 2020 · VIIRS lumière nocturne · PEST-CHEMGRIDS 2020 (Maggi et al.)

Protected areas7

IUCN Not Reported · 4IUCN Ib · 1IUCN VI · 1IUCN IV · 1

Coridorul Jiului

IUCN Not Reported

Special Areas of Conservation (Habitats Directive) · 2022

714 km²

Ibisha Island

IUCN Ib

Wetland of International Importance (Ramsar Site) · 2002

34 km²

Tsibar

IUCN Not Reported

Special Areas of Conservation (Habitats Directive) · 2020

30 km²

Bistreț

IUCN Not Reported

Special Protection Area (Birds Directive) · 2007

21 km²

Ostrov Ibisha

IUCN Not Reported

Special Protection Area (Birds Directive) · 2007

4 km²

Complete list

WDPA (World Database on Protected Areas) — UNEP-WCMC & IUCN