Ontologia

HydroBASINS lev08 watershed · #2080507640

Bassin de Engelberger Aa

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 8 administrative regions : Gersau, Küssnacht, Luzern, Nidwalden, Oberhasli +3

148% lakePfafstetter: 23268047

Sub-basin area

444,1km²

Upstream area

1 756,5km²

Discharge

73,98m³/s

Mean elev.

1 205m

Administrative coverage

Hydrographic chain

▼ Drains into

Bassin de Reuss53 km²

▲ Receives from 2 basins

8 dept-equivalent regions (GADM L2)

30 intersecting protected areas

21 more protected areas

  • Urirotstock

    IUCN IV

    Federal Hunting Reserves

    1.04 km² overlap

  • Scheidegg

    IUCN Not Assigned

    Forest Reserves

    0.92 km² overlap

  • Steinalperwald

    IUCN Not Assigned

    Forest Reserves

    0.57 km² overlap

  • Niederrickenbach-Stollen

    IUCN Not Assigned

    Forest Reserves

    0.55 km² overlap

  • Widerwällhubel

    IUCN Not Assigned

    Forest Reserves

    0.46 km² overlap

  • Seeliboden im Choltal

    IUCN IV

    Federal Inventory of Fenlands of National Importance

    0.42 km² overlap

  • Klewen-Stollen

    IUCN Not Assigned

    Forest Reserves

    0.37 km² overlap

  • Hochflue

    IUCN Not Assigned

    Forest Reserves

    0.37 km² overlap

  • Fäng/Rinderbüel

    IUCN IV

    Federal Inventory of Fenlands of National Importance

    0.36 km² overlap

  • Oberseewli

    IUCN Not Assigned

    Forest Reserves

    0.35 km² overlap

  • Alpenrösli-Herrenrüti

    IUCN IV

    Federal Inventory of Alluvial Zones of National Importance

    0.35 km² overlap

  • Stanserhorn

    IUCN IV

    Federal Inventory of Dry Grasslands and Pastures of National Importance

    0.35 km² overlap

  • Isital

    IUCN IV

    Federal Inventory of Fenlands of National Importance

    0.34 km² overlap

  • Gnappiried

    IUCN IV

    Federal Inventory of Amphibian Spawning Areas of National Importance

    0.34 km² overlap

  • Hüethütte

    IUCN IV

    Federal Inventory of Dry Grasslands and Pastures of National Importance

    0.31 km² overlap

  • Arviwald

    IUCN Not Assigned

    Forest Reserves

    0.28 km² overlap

  • Gersauer Alp

    IUCN IV

    Federal Inventory of Fenlands of National Importance

    0.28 km² overlap

  • Rieter bei Oberrickenbach

    IUCN IV

    Federal Inventory of Fenlands of National Importance

    0.24 km² overlap

  • Waldegg

    IUCN IV

    Federal Inventory of Dry Grasslands and Pastures of National Importance

    0.19 km² overlap

  • Dossen

    IUCN IV

    Federal Inventory of Dry Grasslands and Pastures of National Importance

    0.17 km² overlap

  • Höch Flue

    IUCN IV

    Federal Inventory of Dry Grasslands and Pastures of National Importance

    0.17 km² overlap

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

Species present

10 429 distinct species · 469 228 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

469 228 obs · 24 cellules
Obs. / cellule
≥ 60 898
39 351–60 897
23 495–39 350
17 043–23 494
< 17 043

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

Ecological tissue

Sample of 35 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 Engelberger Aa : 19 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 140 interactions GloBI sur 6 types (connectance 19.9%, filtre Serrano α=0.2). 19 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
38
Interactions affichées
140
Connectance
0.199
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°

5,4°C

Annual rain

1 462mm

Moisture idx (CMI)

0,55

Runoff

1 221mm/an

PET

611mm

AET

606mm

Mean slope

20,7°

Water table

693cm

Forest

64%

Crops

2%

Urban

6%

Protected

16%

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