Ontologia

HydroBASINS lev08 watershed · #2080055660

Bassin de Lagan

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 : Antrim and Newtownabbey, Ards and North Down, Armagh City, Banbridge and Craig, Belfast, NA +1

Pfafstetter: 23400912

Sub-basin area

598,6km²

Upstream area

598,6km²

Discharge

10,49m³/s

Mean elev.

98m

Administrative coverage

6 dept-equivalent regions (GADM L2)

20 intersecting protected areas

  • Lagan Valley

    IUCN Not Reported

    Area of Outstanding Natural Beauty

    38.79 km² overlap

  • Mourne

    IUCN Not Reported

    Area of Outstanding Natural Beauty

    23.11 km² overlap

  • Divis and Black Mountain

    IUCN V

    Nature Reserve

    4.26 km² overlap

  • Slievenacloy

    IUCN Not Reported

    Area of Special Scientific Interest

    1.32 km² overlap

  • Belvoir

    IUCN Not Reported

    Area of Special Scientific Interest

    1.03 km² overlap

  • Lisnabreeny

    IUCN V

    Nature Reserve

    0.51 km² overlap

  • Minnowburn

    IUCN V

    Nature Reserve

    0.49 km² overlap

  • Inner Belfast Lough

    IUCN Not Reported

    Area of Special Scientific Interest

    0.26 km² overlap

  • Collin Glen

    IUCN V

    Nature Reserve

    0.16 km² overlap

11 more protected areas

  • Belfast Lough

    IUCN Not Reported

    Emerald Network

    0.07 km² overlap

  • Belfast Lough

    IUCN Not Reported

    Wetland of International Importance (Ramsar Site)

    0.07 km² overlap

  • Maghaberry

    IUCN Not Reported

    Area of Special Scientific Interest

    0.04 km² overlap

  • Slieve Croob

    IUCN Not Reported

    Area of Special Scientific Interest

    0.03 km² overlap

  • Belfast Lough

    IUCN Not Reported

    Marine Protected Area (OSPAR)

    0.02 km² overlap

  • Belshaws Quarry

    IUCN Not Reported

    Nature Reserve

    0.01 km² overlap

  • Clarehill

    IUCN Not Reported

    Area of Special Scientific Interest

    0.01 km² overlap

  • Belshaws Quarry

    IUCN Not Reported

    Area of Special Scientific Interest

    0.01 km² overlap

  • Ballynanaghten

    IUCN Not Reported

    Area of Special Scientific Interest

    0.01 km² overlap

  • Belfast Lough Open Water

    IUCN Not Reported

    Emerald Network

    0.01 km² overlap

  • Belfast Lough Open Water

    IUCN Not Reported

    Marine Protected Area (OSPAR)

    0.01 km² overlap

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

Species present

5 068 distinct species · 213 121 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

213 121 obs · 18 cellules
Obs. / cellule
≥ 57 114
36 897–57 113
17 130–36 896
8 175–17 129
< 8 175

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

Ecological tissue

Sample of 31 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 Lagan : 24 espèces reliées par 57 interactions GloBI sur 6 types (connectance 10.8%, filtre Serrano α=0.2). 9 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
33
Interactions affichées
57
Connectance
0.108
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

1 033mm

Moisture idx (CMI)

0,43

Runoff

776mm/an

PET

589mm

AET

530mm

Mean slope

2,7°

Water table

130cm

Forest

0%

Crops

29%

Urban

25%

Protected

11%

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