Ontologia

Rivière· 33 segments

Râul Negru

Crosses 25 administrative regions : Borosneu Mare, Brates, Bretcu, Catalina, Cernat +20

rivière

Total length

112km

Max discharge

27,1m³/s

Max Strahler

4

Segments matched

33

River geography25 admin regions · 0 communes

Parent watershed

hybas-2080535040205 km²

25 administrative regions crossed (GADM L2)

  • Lemnia
    Covasna · Romania
    16.0 km
    in this dpt
  • Ozun
    Covasna · Romania
    14.1 km
    in this dpt
  • Borosneu Mare
    Covasna · Romania
    12.8 km
    in this dpt
  • Saliste
    Sibiu · Romania
    12.3 km
    in this dpt
  • Catalina
    Covasna · Romania
    10.7 km
    in this dpt
  • Reci
    Covasna · Romania
    9.1 km
    in this dpt
  • Orlat
    Sibiu · Romania
    7.6 km
    in this dpt
  • Targu Secuiesc
    Covasna · Romania
    7.4 km
    in this dpt
  • Chichis
    Covasna · Romania
    7.2 km
    in this dpt
  • Moacsa
    Covasna · Romania
    6.6 km
    in this dpt
  • Zabala
    Covasna · Romania
    6.4 km
    in this dpt
  • Tilisca
    Sibiu · Romania
    5.2 km
    in this dpt
  • Bretcu
    Covasna · Romania
    4.0 km
    in this dpt
  • Brates
    Covasna · Romania
    3.4 km
    in this dpt
  • Prejmer
    Brașov · Romania
    2.8 km
    in this dpt
  • Poiana Sibiului
    Sibiu · Romania
    1.5 km
    in this dpt
  • Cernat
    Covasna · Romania
    0.0 km
    in this dpt
  • Cristian
    Sibiu · Romania
    0.0 km
    in this dpt
  • Gura Raului
    Sibiu · Romania
    0.0 km
    in this dpt
  • Jina
    Sibiu · Romania
    0.0 km
    in this dpt
  • Ilieni
    Covasna · Romania
    0.0 km
    in this dpt
  • Harman
    Brașov · Romania
    0.0 km
    in this dpt
  • Ojdula
    Covasna · Romania
    0.0 km
    in this dpt
  • Ghelinta
    Covasna · Romania
    0.0 km
    in this dpt
  • Dobarlau
    Covasna · Romania
    0.0 km
    in this dpt

7 intersecting protected areas

1 page = 1 named river (aggregation of 33 HydroRIVERS v10 segments). Spatial join cached after first hit.

Species present

165 distinct species · 698 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Ecological tissue

Sample of 32 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 Râul Negru : 21 espèces dont 2 patrimoniales (LR IUCN CR/EN/VU) reliées par 68 interactions GloBI sur 5 types (connectance 13.7%, filtre Serrano α=0.2). 11 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
32
Interactions affichées
68
Connectance
0.137
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

112km

Max discharge

27,1m³/s

Max Strahler

4

Segments matched

33

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