Ontologia

Ruisseau· 10 segments

Birch Stream

Crosses 2 administrative regions : Hancock, Penobscot

ruisseau

Total length

54km

Max discharge

4m³/s

Max Strahler

2

Segments matched

10

River geography2 admin regions · 0 communes

Parent watershed

hybas-70804163401082 km²

2 administrative regions crossed (GADM L2)

  • Penobscot
    Maine · United States
    38.5 km
    in this dpt
  • Hancock
    Maine · United States
    10.1 km
    in this dpt

2 intersecting protected areas

1 page = 1 named river (aggregation of 10 HydroRIVERS v10 segments). Spatial join cached after first hit.

Species present

130 distinct species · 465 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Ecological tissue

Sample of 40 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 Birch Stream : 31 espèces reliées par 69 interactions GloBI sur 4 types (connectance 8.8%, filtre Serrano α=0.2). 9 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
40
Interactions affichées
69
Connectance
0.088
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

54km

Max discharge

4,0m³/s

Max Strahler

2

Segments matched

10

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