Ontologia

HydroBASINS lev08 watershed · #2080370950

Bassin de Leine

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 7 administrative regions : Goslar, Hameln-Pyrmont, Hildesheim, Holzminden, Northeim +2

2% lakePfafstetter: 23270667

Sub-basin area

1 502,2km²

Upstream area

3 678,8km²

Discharge

38,22m³/s

Mean elev.

200m

Administrative coverage

Hydrographic chain

▼ Drains into

Bassin de Leine411 km²

▲ Receives from 2 basins

7 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

5 895 distinct species · 461 832 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

461 832 obs · 47 cellules
Obs. / cellule
≥ 109 517
10 210–109 516
3 934–10 209
2 585–3 933
< 2 585

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

Ecological tissue

Sample of 34 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 Leine : 25 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 80 interactions GloBI sur 6 types (connectance 13.4%, filtre Serrano α=0.2). 10 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
35
Interactions affichées
80
Connectance
0.135
Patrimoniales
1
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°

8,2°C

Annual rain

752mm

Moisture idx (CMI)

0,04

Runoff

301mm/an

PET

714mm

AET

562mm

Mean slope

4,7°

Water table

256cm

Forest

15%

Crops

49%

Urban

6%

Protected

27%

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