Ziemeļvidzemes biosfēras rezervāts
IUCN VBiosphere Reserve · 1997
4 758 km²
District · LVA
Latvia
Species observed
2 505
Observations
16 483
Area
2 356,4km²
Sample of 53 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 Valmiera : 34 espèces reliées par 122 interactions GloBI sur 4 types (connectance 8.5%, filtre Serrano α=0.2). 20 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).
Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).
2 505 distinct species · 16 483 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Mean T°
6,0°C
Annual rain
767mm
Warmest m°
21,4°C
Coldest m°
-7,7°C
Elevation: 60 m on average (min 36 m, max 100 m)
CHELSA BIO 1-19 v2.1 · ETOPO DEM 60s · Köppen-Geiger 1991-2020 (Beck et al. 2018)
pH H₂O
5,8
Org. C
79,8g/kg
Clay
12,7%
Sand
52,0%
Silt
35,2%
Average over 0-30 cm. Per-depth details in expert panel.
Dominant lithology: suGLiM
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
578,8km
Lake surface here
43,75km²
Basins crossed
7
Max stream order
5
Max drainage
7 894km²
Discharge in basins
43,0m³/s
Mean precip.
653mm/an
Mean T°
5,4°C
Moisture idx
0,13
Max snow
40%
Mean runoff
344mm/an
Mean elev. (basins)
74m
Live spatial overlap (cached after first hit) · HydroBASINS lev08 × HydroLAKES × HydroRIVERS v10
Pop. density
0hab/km²
Night light
0,3nW
Built-up
16,0%
Pesticides
8,5kg/km²
GHSL POP/Built 2020 · VIIRS lumière nocturne · PEST-CHEMGRIDS 2020 (Maggi et al.)
Biosphere Reserve · 1997
4 758 km²
National Park · 1973
918 km²
Special Areas of Conservation (Habitats Directive) · 2022
918 km²
Special Protection Area (Birds Directive) · 2004
918 km²
Special Protection Area (Birds Directive) · 2004
218 km²
Special Areas of Conservation (Habitats Directive) · 2022
218 km²
+ 28 protected areas (top 60 shown)
WDPA (World Database on Protected Areas) — UNEP-WCMC & IUCN