Ruisseau· 3 segments
Notch Brook
Crosses 2 administrative regions : Berkshire, Essex
Total length
21km
Max discharge
0,8m³/s
Max Strahler
2
Segments matched
3
River geography2 admin regions · 0 communes
2 administrative regions crossed (GADM L2)
- EssexNew York · United States4.9 kmin this dpt
- BerkshireMassachusetts · United States3.2 kmin this dpt
2 intersecting protected areas
Hoffman Notch
IUCN IbWilderness
Mount Greylock State
IUCN VIReservation
1 page = 1 named river (aggregation of 3 HydroRIVERS v10 segments). Spatial join cached after first hit.
Species present
290 distinct species · 1 083 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 50 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 Notch Brook : 39 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 107 interactions GloBI sur 5 types (connectance 8.1%, filtre Serrano α=0.2). 13 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
21km
Max discharge
0,8m³/s
Max Strahler
2
Segments matched
3
HydroRIVERS v1.0 (Lehner et al. 2019) aggregated by name + main_riv → 1 entity = 1 named river.