Ontologia

HydroBASINS lev08 watershed · #2080386150

Bassin de 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 24 administrative regions : 's-Hertogenbosch, Asten, Bernheze, Boekel, Boxtel +19

2% lakePfafstetter: 23250824

Sub-basin area

891,7km²

Upstream area

891,8km²

Discharge

12,44m³/s

Mean elev.

21m

Administrative coverage

Hydrographic chain

▼ Drains into

Bassin de Hoefgraaf233 km²

▲ Receives from 0 basins

Source / headwater (no upstream basin)

24 dept-equivalent regions (GADM L2)

16 more

16 intersecting protected areas

  • NNN-NB

    IUCN Not Assigned

    Nature Reserves owned by professional nature management organizations

    158.50 km² overlap

  • NNN-LI

    IUCN Not Assigned

    Nature Reserves owned by professional nature management organizations

    38.72 km² overlap

  • Deurnsche Peel & Mariapeel

    IUCN IV

    Nature Conservation Act

    22.86 km² overlap

  • Deurnsche Peel & Mariapeel

    IUCN IV

    Wetland of International Importance (Ramsar Site)

    22.86 km² overlap

  • Deurnsche Peel & Mariapeel

    IUCN Not Reported

    Special Protection Area (Birds Directive)

    22.86 km² overlap

  • Deurnsche Peel & Mariapeel

    IUCN Not Reported

    Special Areas of Conservation (Habitats Directive)

    22.86 km² overlap

  • Groote Peel

    IUCN Not Reported

    Special Areas of Conservation (Habitats Directive)

    13.48 km² overlap

  • Groote Peel

    IUCN Not Reported

    Special Protection Area (Birds Directive)

    13.48 km² overlap

  • Groote Peel

    IUCN IV

    Nature Conservation Act

    13.48 km² overlap

7 more protected areas

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

Species present

9 943 distinct species · 1 747 397 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

1 747 397 obs · 28 cellules
Obs. / cellule
≥ 222 263
202 078–222 262
54 570–202 077
41 456–54 569
< 41 456

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

Ecological tissue

Sample of 41 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 Aa : 35 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) + 6 bulles famille, 66 interactions GloBI documentées sur 5 types (connectance 8.0%, filtre Serrano α=0.2). Les 6 bulles regroupent des espèces visuellement absorbées par famille (≥3 espèces visibles).

Espèces affichées
41
Interactions affichées
66
Connectance
0.081
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°

9,6°C

Annual rain

773mm

Moisture idx (CMI)

0,08

Runoff

439mm/an

PET

712mm

AET

552mm

Mean slope

0,2°

Water table

18cm

Forest

7%

Crops

35%

Urban

32%

Protected

5%

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