Ruisseau
Afon Geirch
Crosses 1 administrative regions : NA
Total length
3km
Max discharge
0,7m³/s
Max Strahler
2
Segments matched
1
River geography1 admin regions · 0 communes
1 administrative regions crossed (GADM L2)
- NAWales · United Kingdom3.9 kmin this dpt
15 intersecting protected areas
West Wales Marine / Gorllewin Cymru Forol
IUCN Not ReportedEmerald Network
West Wales Marine / Gorllewin Cymru Forol
IUCN Not AssignedMarine Protected Area (OSPAR)
Pen Llŷn a`r Sarnau/ Lleyn Peninsula and the Sarnau
IUCN Not ReportedEmerald Network
Pen Llyn a`r Sarnau / Lleyn Peninsula and the Sarnau
IUCN Not ReportedMarine Protected Area (OSPAR)
Llyn
IUCN VArea Of Outstanding Natural Beauty
Clogwyni Pen Llŷn/ Seacliffs of Lleyn
IUCN Not ReportedEmerald Network
Corsydd Mon a Llyn
IUCN Not ReportedWetland of International Importance (Ramsar Site)
Corsydd Llŷn/ Lleyn Fens
IUCN Not ReportedEmerald Network
Cors Geirch
IUCN IVSite of Special Scientific Interest
6 more protected areassorted by area
Site of Special Scientific Interest
Cors Geirch
IUCN IVNational Nature Reserve
Porth Towyn I Borth Wen
IUCN IVSite of Special Scientific Interest
Llyn Coast
IUCN Not AssignedHeritage Coast
Aber Geirch
IUCN IVSite of Special Scientific Interest
Porthdinllaen
IUCN VNature Reserve
1 page = 1 named river (aggregation of 1 HydroRIVERS v10 segment). Spatial join cached after first hit.
Species present
2 861 distinct species · 13 858 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 37 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 Afon Geirch : 30 espèces reliées par 88 interactions GloBI sur 5 types (connectance 11.9%, filtre Serrano α=0.2). 9 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
3km
Max discharge
0,7m³/s
Max Strahler
2
Segments matched
1
HydroRIVERS v1.0 (Lehner et al. 2019) aggregated by name + main_riv → 1 entity = 1 named river.