HydroBASINS lev08 watershed · #2080476820
Bassin de la Vanne
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 : Aube, Yonne
Sub-basin area
971,8km²
Upstream area
971,8km²
Discharge
6,51m³/s
Mean elev.
191m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
2 dept-equivalent regions (GADM L2)
- 550.4 km²56.5% of basin
- 424.3 km²43.5% of basin
85 communes (GADM L5)Available for FRA, RWA
- Aix-en-Othe35.53 km²100% commune
- Maraye-en-Othe32.54 km²76% commune
- Saint-Mards-en-Othe31.54 km²100% commune
- Courgenay28.20 km²95% commune
- Vaudeurs27.80 km²100% commune
- Estissac25.73 km²100% commune
- Cerisiers25.71 km²99% commune
- Les Sièges24.25 km²100% commune
- Vauchassis23.76 km²100% commune
- Chennegy23.72 km²100% commune
- Lailly21.93 km²98% commune
- Bœurs-en-Othe21.89 km²100% commune
- Dierrey-Saint-Pierre21.50 km²98% commune
- Dierrey-Saint-Julien21.27 km²100% commune
- Palis21.09 km²100% commune
- Rigny-le-Ferron19.39 km²100% commune
- Villemaur-sur-Vanne19.38 km²100% commune
- Malay-le-Grand18.34 km²83% commune
- Paisy-Cosdon18.10 km²100% commune
- Coulours17.51 km²100% commune
- Bercenay-en-Othe17.40 km²100% commune
- Neuville-sur-Vanne17.19 km²100% commune
- Bérulle16.87 km²100% commune
- Arces-Dilo16.44 km²62% commune
- Bagneaux16.29 km²100% commune
- Saint-Benoist-sur-Vanne16.03 km²100% commune
- Pouy-sur-Vannes15.81 km²96% commune
- Foissy-sur-Vanne15.69 km²100% commune
- Macey15.60 km²75% commune
- Vaumort14.14 km²98% commune
- Sormery14.04 km²44% commune
- Bucey-en-Othe13.24 km²100% commune
- Fontvannes13.10 km²100% commune
- Flacy12.40 km²100% commune
- Theil-sur-Vanne12.06 km²100% commune
- Chigy11.98 km²100% commune
- Villemoiron-en-Othe11.62 km²100% commune
- Mesnil-Saint-Loup11.52 km²100% commune
- Molinons11.41 km²100% commune
- Messon11.40 km²100% commune
- Villeloup11.38 km²71% commune
- Les Clérimois11.15 km²89% commune
- Planty10.92 km²100% commune
- Malay-le-Petit10.65 km²99% commune
- Pont-sur-Vanne10.39 km²95% commune
- Venizy10.32 km²23% commune
- Vareilles10.13 km²100% commune
- Fournaudin9.52 km²100% commune
- Marcilly-le-Hayer9.46 km²27% commune
- Nogent-en-Othe9.20 km²100% commune
- Prunay-Belleville9.05 km²35% commune
- Faux-Villecerf8.80 km²42% commune
- Vulaines8.58 km²100% commune
- Noé8.05 km²94% commune
- Prugny7.67 km²90% commune
- Cérilly7.09 km²100% commune
- Villeneuve-l'Archevêque7.01 km²100% commune
- Villiers-Louis6.86 km²64% commune
- Montgueux5.17 km²45% commune
- Sens4.66 km²21% commune
- Villechétive3.80 km²40% commune
- Chailley3.77 km²22% commune
- Villadin3.40 km²27% commune
- Laines-aux-Bois3.25 km²19% commune
- Maillot2.96 km²46% commune
- Turny2.73 km²11% commune
- Échemines2.58 km²14% commune
- Saint-Maurice-aux-Riches-Hommes1.99 km²6% commune
- Bercenay-le-Hayer1.89 km²13% commune
- Champlost1.81 km²8% commune
- Bouilly1.66 km²10% commune
- Sommeval0.99 km²10% commune
- Dixmont0.87 km²2% commune
- Saint-Phal0.84 km²3% commune
- Vosnon0.80 km²6% commune
- Souligny0.63 km²6% commune
- Auxon0.43 km²2% commune
- Saligny0.31 km²3% commune
- Chamoy0.23 km²1% commune
- Torvilliers0.15 km²1% commune
- La Postolle0.10 km²1% commune
- Voisines0.04 km²0% commune
- Fontaine-la-Gaillarde0.04 km²0% commune
- Les Bordes0.00 km²0% commune
- Le Pavillon-Sainte-Julie0.00 km²0% commune
8 intersecting protected areas
Pelouses à orchidées et habitats à chauve-souris des vallées de l'Yonne et de la Vanne
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
2.20 km² overlap
Marais de la Vanne a Villemaur
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
0.87 km² overlap
marais de villemaur
IUCN IVLand acquired by a regional conservatory of natural areas
0.38 km² overlap
Marais De La Vanne
IUCN IVBiotope Protection Order
0.31 km² overlap
Tourbière de Malay-le-Grand
IUCN IVNatural habitats protection Order
0.22 km² overlap
Biotope Protection Order
0.10 km² overlap
Biotope Protection Order
0.06 km² overlap
Cours De L\'Ancre
IUCN IVBiotope Protection Order
0.05 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
4 254 distinct species · 362 773 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 Bassin de la Vanne : 12 espèces reliées par 243 interactions GloBI sur 6 types (connectance 11.7%, filtre Serrano α=0.2). 53 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°
10,2°C
Annual rain
673mm
Moisture idx (CMI)
-0,21
Runoff
212mm/an
PET
847mm
AET
564mm
Mean slope
3,3°
Water table
254cm
Forest
8%
Crops
62%
Urban
1%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)