Ruisseau· 33 segments
La Drôme
Crosses 2 administrative regions : Calvados, Manche
Total length
191km
Max discharge
5,1m³/s
Max Strahler
3
Segments matched
33
River geography2 admin regions · 51 communes
2 administrative regions crossed (GADM L2)
51 communes (L5)For countries with L5
- Cormolain6.81 km
- Planquery5.63 km
- Landelles-et-Coupigny4.86 km
- Montbray4.43 km
- Vaubadon4.13 km
- Noron-la-Poterie4.03 km
- La Bazoque3.34 km
- Dampierre3.31 km
- Le Perron3.24 km
- Sallen3.22 km
- Sept-Vents3.09 km
- Biéville3.00 km
- Vaucelles2.35 km
- Ranchy2.08 km
- Saint-Vigor-des-Monts2.05 km
- Balleroy2.01 km
- La Vacquerie1.99 km
- Sully1.81 km
- La Lande-sur-Drôme1.74 km
- Castillon1.61 km
- Arganchy1.53 km
- Subles1.52 km
- Sainte-Marie-Outre-l'Eau1.36 km
- Maisons1.27 km
- Saint-Jean-des-Essartiers1.26 km
- Saint-Loup-Hors1.20 km
- Agy1.05 km
- Vidouville0.93 km
- Morigny0.74 km
- Montfiquet0.74 km
- Placy-Montaigu0.55 km
- Courson0.55 km
- Le Tronquay0.48 km
- Lamberville0.22 km
- Barbeville0.16 km
- Saint-Ouen-des-Besaces0.01 km
- Juaye-Mondaye0.00 km
- Montrabot0.00 km
- Pont-Farcy0.00 km
- Foulognes0.00 km
- Cussy0.00 km
- Bayeux0.00 km
- Commes0.00 km
- Vaux-sur-Aure0.00 km
- Saint-Paul-du-Vernay0.00 km
- Caumont-l'Éventé0.00 km
- Guéron0.00 km
- Sept-Frères0.00 km
- Beslon0.00 km
- Saint-Germain-d'Elle0.00 km
- Litteau0.00 km
3 intersecting protected areas
Forêt Domaniale De Cerisy
IUCN IVNational Nature Reserve
La Vire et ses affluents
IUCN IVBiotope Protection Order
Hêtraie de Cerisy
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
1 page = 1 named river (aggregation of 33 HydroRIVERS v10 segments). Spatial join cached after first hit.
Species present
199 distinct species · 2 109 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 41 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 Drôme : 30 espèces dont 2 patrimoniales (LR IUCN CR/EN/VU) reliées par 128 interactions GloBI sur 5 types (connectance 15.6%, filtre Serrano α=0.2). 11 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
191km
Max discharge
5,1m³/s
Max Strahler
3
Segments matched
33
HydroRIVERS v1.0 (Lehner et al. 2019) aggregated by name + main_riv → 1 entity = 1 named river.