Ontologia

HydroBASINS lev08 watershed · #2080352960

Bassin de Weser

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 5 administrative regions : Diepholz, Nienburg (Weser), Region Hannover, Schaumburg, Verden

34% lakePfafstetter: 23270671

Sub-basin area

868km²

Upstream area

22 259,9km²

Discharge

226,38m³/s

Mean elev.

35m

Administrative coverage

Hydrographic chain

▼ Drains into

Bassin de Weser1421 km²

▲ Receives from 2 basins

5 dept-equivalent regions (GADM L2)

30 intersecting protected areas

21 more protected areas

Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.

Species present

3 705 distinct species · 93 315 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

93 315 obs · 31 cellules
Obs. / cellule
≥ 30 514
5 126–30 513
2 132–5 125
1 539–2 131
< 1 539

Source : GBIF — observations agrégées par hexagones 0.027° × 0.027° (~22km), filtre précision coordonnée < 10 km. Fond carte : OpenFreeMap · © OpenStreetMap.

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).

RègnesAnimalPlanteChampignonBacterie
RelationsPredationParasitismeSymbiosePollinisation
StatutEn dangerVulnérableProtégéeEndémique

Indicateurs du tissu écologique

Tissu écologique de Bassin de Weser : 26 espèces dont 2 patrimoniales (LR IUCN CR/EN/VU) reliées par 89 interactions GloBI sur 6 types (connectance 13.4%, filtre Serrano α=0.2). 11 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
37
Interactions affichées
89
Connectance
0.134
Patrimoniales
2
Plus dense que (national)0 %(top 100%)

Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).

Hydroclimate (BasinATLAS lev08)

Mean T°

8,9°C

Annual rain

710mm

Moisture idx (CMI)

-0,02

Runoff

356mm/an

PET

722mm

AET

550mm

Mean slope

0,7°

Water table

66cm

Forest

10%

Crops

48%

Urban

6%

Protected

36%

HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)