Rivière· 28 segments
Була
Crosses 6 administrative regions : Apastovskiy rayon, Batyrevskiy rayon, Buinskiy rayon, Ibresinskiy rayon, Komsomol'skiy rayon +1
Total length
142km
Max discharge
4,9m³/s
Max Strahler
4
Segments matched
28
River geography6 admin regions · 0 communes
6 administrative regions crossed (GADM L2)
- Batyrevskiy rayonChuvash · Russia64.3 kmin this dpt
- Buinskiy rayonTatarstan · Russia23.8 kmin this dpt
- Apastovskiy rayonTatarstan · Russia15.5 kmin this dpt
- Yal'chikskiy rayonChuvash · Russia9.8 kmin this dpt
- Ibresinskiy rayonChuvash · Russia6.8 kmin this dpt
- Komsomol'skiy rayonChuvash · Russia0.1 kmin this dpt
2 intersecting protected areas
Prisurskij
IUCN IaState Natural Zapovednik
Kaensar
IUCN IIINatural Monument
1 page = 1 named river (aggregation of 28 HydroRIVERS v10 segments). Spatial join cached after first hit.
Species present
173 distinct species · 285 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 31 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 Була : 18 espèces reliées par 54 interactions GloBI sur 5 types (connectance 10.2%, filtre Serrano α=0.2). 15 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
142km
Max discharge
4,9m³/s
Max Strahler
4
Segments matched
28
HydroRIVERS v1.0 (Lehner et al. 2019) aggregated by name + main_riv → 1 entity = 1 named river.