Ontologia

HydroBASINS lev08 watershed · #2080023810

Bassin de Hooksieler 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 3 administrative regions : Friesland, Wilhelmshaven, Wittmund

Coastal basin 3% lakePfafstetter: 23270505

Sub-basin area

343,5km²

Upstream area

343,5km²

Discharge

0,45m³/s

Mean elev.

0m

Administrative coverage

3 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

2 029 distinct species · 33 478 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

33 478 obs · 11 cellules
Obs. / cellule
≥ 12 971
4 863–12 970
2 631–4 862
1 541–2 630
< 1 541

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

Ecological tissue

Sample of 39 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 Hooksieler Tief : 32 espèces dont 3 patrimoniales (LR IUCN CR/EN/VU) reliées par 75 interactions GloBI sur 4 types (connectance 10.1%, filtre Serrano α=0.2). 7 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
39
Interactions affichées
75
Connectance
0.101
Patrimoniales
3
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°

8,7°C

Annual rain

785mm

Moisture idx (CMI)

0,24

Runoff

501mm/an

PET

600mm

AET

502mm

Mean slope

0,2°

Water table

6cm

Forest

6%

Crops

26%

Urban

12%

Protected

13%

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