Ruisseau· 11 segments
Callan
Crosses 1 administrative regions : Armagh City, Banbridge and Craig
Total length
40km
Max discharge
3,8m³/s
Max Strahler
3
Segments matched
11
River geography1 admin regions · 0 communes
1 administrative regions crossed (GADM L2)
- Armagh City, Banbridge and CraigNorthern Ireland · United Kingdom43.2 kmin this dpt
1 intersecting protected areas
Drumarg
IUCN Not ReportedArea of Special Scientific Interest
1 page = 1 named river (aggregation of 11 HydroRIVERS v10 segments). Spatial join cached after first hit.
Species present
923 distinct species · 4 448 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 39 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 Callan : 34 espèces reliées par 80 interactions GloBI sur 5 types (connectance 10.8%, filtre Serrano α=0.2). 5 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).
Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).
Hydrology (HydroRIVERS v10)
Total length
40km
Max discharge
3,8m³/s
Max Strahler
3
Segments matched
11
HydroRIVERS v1.0 (Lehner et al. 2019) aggregated by name + main_riv → 1 entity = 1 named river.