HydroBASINS lev08 watershed · #2080336470
Bassin de Kells Blackwater
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 : Bailieborough-Cootehill, Ballyjamesduff, Kells, Navan
Sub-basin area
723,1km²
Upstream area
723,1km²
Discharge
13,1m³/s
Mean elev.
105m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
4 dept-equivalent regions (GADM L2)
- 374.7 km²51.6% of basin
- 159.4 km²22.0% of basin
- 150.4 km²20.7% of basin
- 41.7 km²5.7% of basin
5 intersecting protected areas
River Boyne and River Blackwater SAC
IUCN Not ReportedSite of Community Importance (Habitats Directive)
3.48 km² overlap
Killyconny Bog (Cloghbally) SAC
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
1.85 km² overlap
River Boyne and River Blackwater SPA
IUCN Not ReportedSpecial Protection Area (Birds Directive)
1.06 km² overlap
Girley Bog NHA
IUCN IVNatural Heritage Area
0.51 km² overlap
Jamestown Bog NHA
IUCN IVNatural Heritage Area
0.51 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
1 709 distinct species · 20 344 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 29 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).
Indicateurs du tissu écologique
Tissu écologique de Bassin de Kells Blackwater : 17 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 87 interactions GloBI sur 6 types (connectance 18.7%, filtre Serrano α=0.2). 14 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).
Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).
Hydroclimate (BasinATLAS lev08)
Mean T°
8,8°C
Annual rain
918mm
Moisture idx (CMI)
0,32
Runoff
596mm/an
PET
619mm
AET
529mm
Mean slope
2,0°
Water table
118cm
Forest
1%
Crops
13%
Urban
2%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)