Ontologia

HydroBASINS lev08 watershed · #2080023860

Bassin de Friedeburger Tief

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 6 administrative regions : Ammerland, Aurich, Friesland, Leer, Wilhelmshaven +1

3% lakePfafstetter: 23270506

Sub-basin area

456,1km²

Upstream area

456,1km²

Discharge

5,82m³/s

Mean elev.

4m

Administrative coverage

6 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

2 530 distinct species · 37 779 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

37 779 obs · 16 cellules
Obs. / cellule
≥ 8 290
3 800–8 289
2 713–3 799
1 992–2 712
< 1 992

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

Ecological tissue

Sample of 38 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 Friedeburger Tief : 26 espèces reliées par 105 interactions GloBI sur 6 types (connectance 14.9%, filtre Serrano α=0.2). 12 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
38
Interactions affichées
105
Connectance
0.149
Patrimoniales
0
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°

8,6°C

Annual rain

783mm

Moisture idx (CMI)

0,20

Runoff

489mm/an

PET

624mm

AET

514mm

Mean slope

0,3°

Water table

10cm

Forest

2%

Crops

23%

Urban

12%

Protected

8%

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