Ontologia

Rivière· 67 segments

নাগর নদী

Crosses 7 administrative regions : Bogra, Joypurhat, Katihar, Naogaon, Natore +2

rivière

Total length

236km

Max discharge

127,1m³/s

Max Strahler

5

Segments matched

67

River geography7 admin regions · 0 communes

Parent watershed

hybas-40809252602380 km²

7 administrative regions crossed (GADM L2)

  • Uttar Dinajpur
    West Bengal · India
    92.9 km
    in this dpt
  • Bogra
    Rajshahi · Bangladesh
    42.0 km
    in this dpt
  • Thakurgaon
    Rangpur · Bangladesh
    33.7 km
    in this dpt
  • Natore
    Rajshahi · Bangladesh
    22.1 km
    in this dpt
  • Naogaon
    Rajshahi · Bangladesh
    16.1 km
    in this dpt
  • Katihar
    Bihar · India
    4.9 km
    in this dpt
  • Joypurhat
    Rajshahi · Bangladesh
    0.0 km
    in this dpt

1 page = 1 named river (aggregation of 67 HydroRIVERS v10 segments). Spatial join cached after first hit.

Species present

168 distinct species · 1 266 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Ecological tissue

Sample of 34 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 নাগর নদী : 27 espèces dont 2 patrimoniales (LR IUCN CR/EN/VU) reliées par 40 interactions GloBI sur 3 types (connectance 7.1%, filtre Serrano α=0.2). 7 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
34
Interactions affichées
40
Connectance
0.071
Patrimoniales
2
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

236km

Max discharge

127,1m³/s

Max Strahler

5

Segments matched

67

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