Ontologia

Ruisseau· 5 segments

Black Brook

Crosses 4 administrative regions : Grafton, Hillsborough, Merrimack, Middlesex

ruisseau

Total length

884km

Max discharge

4m³/s

Max Strahler

3

Segments matched

5

River geography4 admin regions · 0 communes

Parent watershed

hybas-7080466110184 km²

4 administrative regions crossed (GADM L2)

  • Hillsborough
    New Hampshire · United States
    9.9 km
    in this dpt
  • Grafton
    New Hampshire · United States
    5.7 km
    in this dpt
  • Merrimack
    New Hampshire · United States
    5.0 km
    in this dpt
  • Middlesex
    Massachusetts · United States
    1.5 km
    in this dpt

6 intersecting protected areas

1 page = 1 named river (aggregation of 5 HydroRIVERS v10 segments). Spatial join cached after first hit.

Species present

718 distinct species · 77 683 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).

RègnesAnimalPlanteChampignonBacterie
RelationsPredationParasitismeSymbiosePollinisation
StatutEn dangerVulnérableProtégéeEndémique

Indicateurs du tissu écologique

Tissu écologique de Black Brook : 20 espèces reliées par 71 interactions GloBI sur 4 types (connectance 14.3%, filtre Serrano α=0.2). 12 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
32
Interactions affichées
71
Connectance
0.143
Patrimoniales
0
Plus dense que (national)0 %(top 100%)

Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).

Hydrology (HydroRIVERS v10)

Total length

884km

Max discharge

4,0m³/s

Max Strahler

3

Segments matched

5

HydroRIVERS v1.0 (Lehner et al. 2019) aggregated by name + main_riv → 1 entity = 1 named river.