Rivière· 14 segments
La Somme Rivière
Crosses 2 administrative regions : Aisne, Somme
Total length
60km
Max discharge
13,2m³/s
Max Strahler
4
Segments matched
14
River geography2 admin regions · 52 communes
2 administrative regions crossed (GADM L2)
52 communes (L5)For countries with L5
- Péronne5.72 km
- Villers-Carbonnel5.28 km
- Mesnil-Bruntel4.87 km
- Barleux4.53 km
- Lesdins4.35 km
- Voyennes3.00 km
- Saint-Christ-Briost2.70 km
- Offoy2.67 km
- Assevillers2.53 km
- Falvy2.51 km
- Ham2.43 km
- Villecourt2.30 km
- Fresnes-Mazancourt2.11 km
- Brie1.83 km
- Éterpigny1.79 km
- Sequehart1.62 km
- Estrées-Mons1.60 km
- Dury1.29 km
- Ennemain1.28 km
- Épénancourt1.18 km
- Biaches1.08 km
- Belloy-en-Santerre0.76 km
- Sancourt0.74 km
- Béthencourt-sur-Somme0.39 km
- Hombleux0.34 km
- Berny-en-Santerre0.09 km
- Saint-Simon0.00 km
- Y0.00 km
- Cizancourt0.00 km
- Ollezy0.00 km
- Licourt0.00 km
- Marchélepot0.00 km
- Misery0.00 km
- Pargny0.00 km
- Bray-Saint-Christophe0.00 km
- Morcourt0.00 km
- Essigny-le-Petit0.00 km
- Levergies0.00 km
- Cartigny0.00 km
- Cléry-sur-Somme0.00 km
- Doingt0.00 km
- Fontaine-Uterte0.00 km
- Remaucourt0.00 km
- Flaucourt0.00 km
- Omissy0.00 km
- Rouy-le-Petit0.00 km
- Rouy-le-Grand0.00 km
- Estrées-Deniécourt0.00 km
- Ablaincourt-Pressoir0.00 km
- Eppeville0.00 km
- Matigny0.00 km
- Tugny-et-Pont0.00 km
2 intersecting protected areas
Wetland of International Importance (Ramsar Site)
Étangs et marais du bassin de la Somme
IUCN Not ReportedSpecial Protection Area (Birds Directive)
1 page = 1 named river (aggregation of 14 HydroRIVERS v10 segments). Spatial join cached after first hit.
Species present
701 distinct species · 4 810 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 40 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 La Somme Rivière : 29 espèces reliées par 96 interactions GloBI sur 4 types (connectance 11.1%, 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).
Hydrology (HydroRIVERS v10)
Total length
60km
Max discharge
13,2m³/s
Max Strahler
4
Segments matched
14
HydroRIVERS v1.0 (Lehner et al. 2019) aggregated by name + main_riv → 1 entity = 1 named river.