Ruisseau· 11 segments
La Nizonne
Crosses 2 administrative regions : Charente, Dordogne
Total length
36km
Max discharge
5,4m³/s
Max Strahler
3
Segments matched
11
River geography2 admin regions · 18 communes
2 administrative regions crossed (GADM L2)
18 communes (L5)For countries with L5
- Rudeau-Ladosse10.30 km
- Beaussac7.72 km
- Champeaux-et-la-Chapelle-Pommier5.24 km
- Édon4.66 km
- Combiers4.18 km
- Saint-Front-sur-Nizonne2.65 km
- Champagne-et-Fontaine1.87 km
- Puyrenier1.83 km
- La Rochebeaucourt-et-Argentine1.82 km
- Sainte-Croix-de-Mareuil1.20 km
- Lussas-et-Nontronneau1.15 km
- Les Graulges0.81 km
- Saint-Sulpice-de-Mareuil0.76 km
- Blanzaguet-Saint-Cybard0.00 km
- Connezac0.00 km
- Hautefaye0.00 km
- Sceau-Saint-Angel0.00 km
- Mareuil0.00 km
12 intersecting protected areas
Périgord-Limousin
IUCN VRegional Nature Park
Vallée de la Nizonne
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
Plateau d'Argentine
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
Biotope Protection Order
la nizonne - argentine
IUCN IVLand acquired by a regional conservatory of natural areas
vallee du bretanges
IUCN IVLand acquired by a regional conservatory of natural areas
Land acquired by a regional conservatory of natural areas
Land acquired by a regional conservatory of natural areas
la nizonne - combiers
IUCN IVLand acquired by a regional conservatory of natural areas
3 more protected areassorted by area
Land acquired by a regional conservatory of natural areas
la nizonne - le noble
IUCN IVLand acquired by a regional conservatory of natural areas
Land acquired by a regional conservatory of natural areas
1 page = 1 named river (aggregation of 11 HydroRIVERS v10 segments). Spatial join cached after first hit.
Species present
1 057 distinct species · 4 623 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 29 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 Nizonne : 22 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 98 interactions GloBI sur 6 types (connectance 24.1%, filtre Serrano α=0.2). 7 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
36km
Max discharge
5,4m³/s
Max Strahler
3
Segments matched
11
HydroRIVERS v1.0 (Lehner et al. 2019) aggregated by name + main_riv → 1 entity = 1 named river.