Special Ward · JPN
Arakawa
Japan
Species observed
347
Observations
7 571
Area
9,3km²
Ecological tissue
Sample of 44 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).
Indicateurs du tissu écologique
Tissu écologique de Arakawa : 31 espèces dont 2 patrimoniales (LR IUCN CR/EN/VU) reliées par 98 interactions GloBI sur 5 types (connectance 9.1%, filtre Serrano α=0.2). 16 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).
Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).
Species present
347 distinct species · 7 571 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Climate
Mean T°
15,5°C
Annual rain
1 469mm
Warmest m°
29,7°C
Coldest m°
-0,1°C
Elevation: 3 m on average (min 2 m, max 10 m)
Bioclimatic details19 BIO + Köppen full + altitude statsExpert
CHELSA BIO 1-19 v2.1 · ETOPO DEM 60s · Köppen-Geiger 1991-2020 (Beck et al. 2018)
Hydrology2 basins · 0 lakes · 1 rivers
Hydrology metrics for this exact territory
Stream length here
3,1km
Basins crossed
2
Max stream order
1
Max drainage
2 816km²
Discharge in basins
0,2m³/s
Mean precip.
1 447mm/an
Mean T°
15,3°C
Moisture idx
0,31
Max snow
1%
Mean runoff
718mm/an
Mean elev. (basins)
28m
Watersheds crossing here
Rivers / streams (1, ord ≥ 4)
Live spatial overlap (cached after first hit) · HydroBASINS lev08 × HydroLAKES × HydroRIVERS v10