Aller (mit Barnbruch), untere Leine, untere Oker
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive) · 2016
180 km²
Subdivision · DEU
Germany
Species observed
526
Observations
711
Area
34,1km²
Sample of 45 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).
Tissu écologique de Rethem (Aller) : 32 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 118 interactions GloBI sur 6 types (connectance 11.9%, filtre Serrano α=0.2). 13 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).
Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).
526 distinct species · 711 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Mean T°
9,6°C
Annual rain
739mm
Warmest m°
22,5°C
Coldest m°
-0,7°C
Elevation: 20 m on average (min 16 m, max 25 m)
CHELSA BIO 1-19 v2.1 · ETOPO DEM 60s · Köppen-Geiger 1991-2020 (Beck et al. 2018)
pH H₂O
5,6
Org. C
52,3g/kg
Clay
11,4%
Sand
65,1%
Silt
23,5%
Average over 0-30 cm. Per-depth details in expert panel.
Dominant lithology: suGLiMaggregated to Heidekreis
SoilGrids 250m (ISRIC, 2017) · GLiM v1.0 (Hartmann & Moosdorf 2012)
Copernicus Global Land Cover 100m (Buchhorn et al. 2020)
Hydrology metrics for this exact territory
Stream length here
14,4km
Basins crossed
1
Max stream order
6
Max drainage
16 034km²
Discharge in basins
2,8m³/s
Mean precip.
701mm/an
Mean T°
8,6°C
Moisture idx
-0,04
Max snow
18%
Mean runoff
324mm/an
Mean elev. (basins)
51m
Live spatial overlap (cached after first hit) · HydroBASINS lev08 × HydroLAKES × HydroRIVERS v10
Pop. density
0hab/km²
Night light
0,2nW
Built-up
74,9%
Pesticides
36,2kg/km²
GHSL POP/Built 2020 · VIIRS lumière nocturne · PEST-CHEMGRIDS 2020 (Maggi et al.)
Special Areas of Conservation (Habitats Directive) · 2016
180 km²
Special Protection Area (Birds Directive) · 2001
54 km²
Landscape Protection Area · 2020
37 km²
Nature Reserve · 2020
12 km²
Nature Reserve · 2016
11 km²
Landscape Protection Area · 2016
8 km²
WDPA (World Database on Protected Areas) — UNEP-WCMC & IUCN