HydroBASINS lev08 watershed · #2080021230
Bassin de Ruisseau du Plessis
A watershed (drainage basin) is not a body of water — it is the land area where rainfall converges towards a single river that eventually reaches the sea (or an endorheic basin). Boundaries follow ridgelines.
Crosses 1 administrative regions : Morbihan
Sub-basin area
21,7km²
Upstream area
21,7km²
Discharge
0,49m³/s
Mean elev.
22m
Administrative coverage
3 communes (GADM L5)Available for FRA, RWA
1 intersecting protected areas
Biotope Protection Order
0.03 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
961 distinct species · 9 188 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 37 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 Bassin de Ruisseau du Plessis : 26 espèces reliées par 96 interactions GloBI sur 6 types (connectance 13.7%, filtre Serrano α=0.2). 12 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).
Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).
Hydroclimate (BasinATLAS lev08)
Mean T°
11,6°C
Annual rain
923mm
Moisture idx (CMI)
0,23
Runoff
713mm/an
PET
710mm
AET
558mm
Mean slope
1,7°
Water table
74cm
Forest
1%
Crops
57%
Urban
56%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)