Upper St John River Watershed
IUCN VWatershed · 1998
644 km²
County · USA
United States
Species observed
3 930
Observations
328 179
Area
17 713,5km²
Sample of 30 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 Aroostook : 20 espèces reliées par 56 interactions GloBI sur 3 types (connectance 12.9%, filtre Serrano α=0.2). 10 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).
Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).
3 930 distinct species · 328 179 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Mean T°
4,3°C
Annual rain
1 175mm
Warmest m°
23,3°C
Coldest m°
-16,2°C
Elevation: 261 m on average (min 87 m, max 610 m)
CHELSA BIO 1-19 v2.1 · ETOPO DEM 60s · Köppen-Geiger 1991-2020 (Beck et al. 2018)
pH H₂O
4,9
Org. C
95,8g/kg
Clay
17,7%
Sand
38,5%
Silt
43,9%
Average over 0-30 cm. Per-depth details in expert panel.
Dominant lithology: ssGLiM
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
3 242,1km
Lake surface here
278,41km²
Basins crossed
44
Max stream order
6
Max drainage
35 701km²
Discharge in basins
1 767,2m³/s
Mean precip.
995mm/an
Mean T°
3,3°C
Moisture idx
0,22
Max snow
47%
Mean runoff
664mm/an
Mean elev. (basins)
270m
Live spatial overlap (cached after first hit) · HydroBASINS lev08 × HydroLAKES × HydroRIVERS v10
Pop. density
0hab/km²
Night light
0,1nW
Built-up
6,3%
Pesticides
25,9kg/km²
GHSL POP/Built 2020 · VIIRS lumière nocturne · PEST-CHEMGRIDS 2020 (Maggi et al.)
Watershed · 1998
644 km²
Wilderness
84 km²
Land set aside · 2023
64 km²
Ecological Reserve · 1975
26 km²
National Wildlife Refuge · 1998
21 km²
Private Conservation Land · 1976
15 km²
WDPA (World Database on Protected Areas) — UNEP-WCMC & IUCN