HydroBASINS lev08 watershed · #2080470560
Bassin de la Mayenne
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 2 administrative regions : Mayenne, Orne
Sub-basin area
874,2km²
Upstream area
874,5km²
Discharge
12,31m³/s
Mean elev.
205m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
2 dept-equivalent regions (GADM L2)
- Mayenne499.4 km²57.0% of basin
- 377.5 km²43.0% of basin
80 communes (GADM L5)Available for FRA, RWA
- Lassay-les-ChâteauxMayenne58.41 km²100% commune
- Lignières-OrgèresMayenne41.77 km²100% commune
- Javron-les-ChapellesMayenne38.60 km²100% commune
- Magny-le-Désert33.44 km²100% commune
- Pré-en-PailMayenne28.69 km²64% commune
- La Ferté-Macé27.30 km²99% commune
- La Sauvagère25.61 km²95% commune
- Le HamMayenne24.83 km²99% commune
- Ceaucé23.76 km²56% commune
- Le HorpsMayenne23.37 km²97% commune
- Juvigny-sous-Andaine22.22 km²99% commune
- La Baroche-sous-Lucé20.58 km²90% commune
- Saint-Patrice-du-Désert20.37 km²100% commune
- Saint-Cyr-en-PailMayenne20.34 km²100% commune
- ChantrignéMayenne18.26 km²100% commune
- MadréMayenne17.55 km²100% commune
- Saint-Calais-du-DésertMayenne17.23 km²100% commune
- Le RibayMayenne17.16 km²100% commune
- Saint-Aignan-de-CouptrainMayenne17.02 km²100% commune
- Ciral17.01 km²97% commune
- La Chapelle-d'Andaine15.49 km²100% commune
- VillepailMayenne15.13 km²100% commune
- Ambrières-les-ValléesMayenne15.10 km²39% commune
- Neuilly-le-VendinMayenne14.87 km²100% commune
- CharchignéMayenne14.45 km²100% commune
- ThubœufMayenne14.27 km²100% commune
- Saint-SamsonMayenne13.61 km²100% commune
- La Coulonche13.35 km²97% commune
- Chevaigné-du-MaineMayenne13.15 km²100% commune
- Joué-du-Bois11.98 km²56% commune
- Sainte-Marie-du-BoisMayenne11.51 km²100% commune
- Saint-Julien-du-TerrouxMayenne11.12 km²100% commune
- Couterne10.64 km²100% commune
- Saint-Ouen-le-Brisoult9.67 km²100% commune
- Bagnoles-de-l'Orne9.54 km²100% commune
- Le Housseau-BrétignollesMayenne9.38 km²100% commune
- La Motte-Fouquet9.14 km²100% commune
- Saint-Maurice-du-Désert9.12 km²85% commune
- Sept-Forges8.90 km²100% commune
- Beaulandais8.48 km²100% commune
- Geneslay8.25 km²100% commune
- Crennes-sur-FraubéeMayenne8.21 km²62% commune
- Rennes-en-GrenouillesMayenne7.85 km²100% commune
- Lalacelle7.14 km²54% commune
- La PalluMayenne6.74 km²100% commune
- Saint-Martin-des-Landes6.63 km²58% commune
- Champsecret6.40 km²14% commune
- Loré6.22 km²100% commune
- Saint-Michel-des-Andaines5.93 km²100% commune
- Saint-Denis-de-Villenette5.83 km²100% commune
- Tessé-Froulay5.27 km²100% commune
- LoupfougèresMayenne4.95 km²27% commune
- Antoigny4.94 km²100% commune
- Montreuil-PoulayMayenne4.92 km²30% commune
- Villaines-la-JuhelMayenne4.88 km²17% commune
- La Chaux4.82 km²91% commune
- Méhoudin3.76 km²100% commune
- La Ferrière-aux-Étangs2.96 km²26% commune
- Haleine2.85 km²100% commune
- HardangesMayenne2.15 km²11% commune
- Perrou2.00 km²44% commune
- Avrilly1.78 km²34% commune
- Saint-Loup-du-GastMayenne1.76 km²17% commune
- Beauvain1.57 km²12% commune
- ChampéonMayenne1.46 km²7% commune
- Lucé1.39 km²23% commune
- Gandelain0.91 km²6% commune
- Saint-Ellier-les-Bois0.70 km²5% commune
- Le Ménil-de-Briouze0.58 km²3% commune
- CouptrainMayenne0.44 km²100% commune
- Bellou-en-Houlme0.31 km²1% commune
- Saint-Georges-d'Annebecq0.23 km²2% commune
- ChampfrémontMayenne0.19 km²1% commune
- Carrouges0.14 km²2% commune
- Saint-Brice0.11 km²2% commune
- Rânes0.09 km²0% commune
- Lonlay-le-Tesson0.09 km²1% commune
- Le Grais0.01 km²0% commune
- Marcillé-la-VilleMayenne0.00 km²0% commune
- Saires-la-Verrerie0.00 km²0% commune
15 intersecting protected areas
Normandie-Maine
IUCN VRegional Nature Park
633.35 km² overlap
Bocage de la forêt de la Monnaie à Javron-les-Chapelles
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
64.54 km² overlap
Corniche de Pail, forêt de Multonne
IUCN Not ReportedSpecial Protection Area (Birds Directive)
8.67 km² overlap
Forêt de Multonne, corniche de Pail
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
6.62 km² overlap
Mont des Avaloirs
IUCN IVRegional Nature Reserve
2.74 km² overlap
Vallée du Sarthon et affluents
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
0.31 km² overlap
Ruisseau De Mousse
IUCN IVBiotope Protection Order
0.21 km² overlap
Haute vallée de l'Orne et affluents
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
0.07 km² overlap
Bassin de l'Andainette
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
0.06 km² overlap
6 more protected areassorted by overlap area
Biotope Protection Order
0.03 km² overlap
Ruisseau De Gérard
IUCN IVBiotope Protection Order
0.02 km² overlap
Regional Nature Reserve
0.01 km² overlap
Pierriers de Normandie
IUCN IVRegional Nature Reserve
0.01 km² overlap
La Rivière L\'Andainette
IUCN IVBiotope Protection Order
0.01 km² overlap
Biotope Protection Order
0.00 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
5 633 distinct species · 104 755 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 la Mayenne : 22 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 118 interactions GloBI sur 6 types (connectance 17.7%, filtre Serrano α=0.2). 15 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°
10,0°C
Annual rain
762mm
Moisture idx (CMI)
-0,03
Runoff
452mm/an
PET
787mm
AET
569mm
Mean slope
2,3°
Water table
191cm
Forest
5%
Crops
20%
Urban
1%
Protected
72%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)