Ontologia

HydroBASINS lev08 watershed · #2080055480

Bassin de Swilly

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 4 administrative regions across 2 countries : Derry City and Strabane, Inishowen, Letterkenny - Milford, Lifford - Stranorlar

Coastal basin 3% lakePfafstetter: 23400703

Sub-basin area

1 148,3km²

Upstream area

1 148,3km²

Discharge

1,17m³/s

Mean elev.

113m

Administrative coverage

4 dept-equivalent regions (GADM L2)

19 intersecting protected areas

  • North Inishowen Coast SAC

    IUCN Not Reported

    Site of Community Importance (Habitats Directive)

    60.03 km² overlap

  • Lough Swilly SPA

    IUCN Not Reported

    Special Protection Area (Birds Directive)

    34.63 km² overlap

  • Lough Swilly SAC

    IUCN Not Reported

    Special Areas of Conservation (Habitats Directive)

    23.71 km² overlap

  • Trawbreaga Bay SPA

    IUCN Not Reported

    Special Protection Area (Birds Directive)

    10.33 km² overlap

  • Magheradrumman Bog SAC

    IUCN Not Reported

    Site of Community Importance (Habitats Directive)

    9.98 km² overlap

  • Trawbreaga Bay

    IUCN Not Reported

    Wetland of International Importance (Ramsar Site)

    5.67 km² overlap

  • Lough Foyle SPA

    IUCN Not Reported

    Special Protection Area (Birds Directive)

    2.87 km² overlap

  • Malin Head SPA

    IUCN Not Reported

    Special Protection Area (Birds Directive)

    2.81 km² overlap

  • Camowen River Bog NHA

    IUCN IV

    Natural Heritage Area

    2.58 km² overlap

10 more protected areas

  • Inishtrahull SAC

    IUCN Not Reported

    Special Areas of Conservation (Habitats Directive)

    2.42 km² overlap

  • Inishtrahull SPA

    IUCN Not Reported

    Special Protection Area (Birds Directive)

    1.88 km² overlap

  • Slieve Snaght Bogs NHA

    IUCN IV

    Natural Heritage Area

    1.63 km² overlap

  • Illies Hill Bog NHA

    IUCN IV

    Natural Heritage Area

    0.90 km² overlap

  • Umrycam Bog NHA

    IUCN IV

    Natural Heritage Area

    0.62 km² overlap

  • Lough Foyle

    IUCN Not Reported

    Wetland of International Importance (Ramsar Site)

    0.33 km² overlap

  • Lough Foyle

    IUCN Not Reported

    Area of Special Scientific Interest

    0.33 km² overlap

  • Lough Foyle

    IUCN Not Reported

    Emerald Network

    0.33 km² overlap

  • Lough Foyle

    IUCN Not Reported

    Marine Protected Area (OSPAR)

    0.26 km² overlap

  • Meentygrannagh Bog SAC

    IUCN Not Reported

    Special Areas of Conservation (Habitats Directive)

    0.03 km² overlap

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

Species present

2 791 distinct species · 42 373 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

42 373 obs · 33 cellules
Obs. / cellule
≥ 6 142
2 610–6 141
1 425–2 609
1 032–1 424
< 1 032

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

Ecological tissue

Sample of 36 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 Swilly : 26 espèces dont 4 patrimoniales (LR IUCN CR/EN/VU) reliées par 91 interactions GloBI sur 6 types (connectance 12.9%, filtre Serrano α=0.2). 12 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
38
Interactions affichées
91
Connectance
0.129
Patrimoniales
4
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°

8,5°C

Annual rain

1 137mm

Moisture idx (CMI)

0,54

Runoff

1 012mm/an

PET

518mm

AET

490mm

Mean slope

4,8°

Water table

310cm

Forest

17%

Crops

3%

Urban

3%

Protected

1%

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