Ruisseau· 4 segments
Ribeira da Isna
Crosses 6 administrative regions : Ferreira do Zêzere, Mação, Oleiros, Proença-a-Nova, Sertã +1
Total length
66km
Max discharge
3m³/s
Max Strahler
2
Segments matched
4
River geography6 admin regions · 0 communes
6 administrative regions crossed (GADM L2)
- SertãCastelo Branco · Portugal19.3 kmin this dpt
- Vila de ReiCastelo Branco · Portugal11.1 kmin this dpt
- Proença-a-NovaCastelo Branco · Portugal9.4 kmin this dpt
- OleirosCastelo Branco · Portugal3.9 kmin this dpt
- MaçãoSantarém · Portugal1.3 kmin this dpt
- Ferreira do ZêzereSantarém · Portugal0.0 kmin this dpt
1 page = 1 named river (aggregation of 4 HydroRIVERS v10 segments). Spatial join cached after first hit.
Species present
430 distinct species · 4 270 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 28 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 Ribeira da Isna : 19 espèces reliées par 88 interactions GloBI sur 6 types (connectance 23.3%, 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
66km
Max discharge
3,0m³/s
Max Strahler
2
Segments matched
4
HydroRIVERS v1.0 (Lehner et al. 2019) aggregated by name + main_riv → 1 entity = 1 named river.