Ontologia

HydroBASINS lev08 watershed · #2080346640

Bassin de Ems

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 across 2 countries : Emsland, Leer, Westerwolde

2% lakePfafstetter: 23270430

Sub-basin area

1 134,6km²

Upstream area

9 335,7km²

Discharge

135,42m³/s

Mean elev.

13m

Administrative coverage

Hydrographic chain

▼ Drains into

Bassin de Ems556 km²

▲ Receives from 2 basins

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

4 091 distinct species · 110 008 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

110 008 obs · 60 cellules
Obs. / cellule
≥ 5 783
3 808–5 782
2 306–3 807
1 627–2 305
< 1 627

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

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).

RègnesAnimalPlanteChampignonBacterie
RelationsPredationParasitismeSymbiosePollinisation
StatutEn dangerVulnérableProtégéeEndémique

Indicateurs du tissu écologique

Tissu écologique de Bassin de Ems : 28 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 148 interactions GloBI sur 5 types (connectance 16.4%, filtre Serrano α=0.2). 15 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
43
Interactions affichées
148
Connectance
0.164
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°

8,9°C

Annual rain

784mm

Moisture idx (CMI)

0,13

Runoff

430mm/an

PET

680mm

AET

542mm

Mean slope

0,4°

Water table

20cm

Forest

10%

Crops

46%

Urban

9%

Protected

19%

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