Ontologia

HydroBASINS lev08 watershed · #2080632980

Bassin de Oltu Çayı

A watershed (drainage basin) is not a body of water — it is the land area where rainfall converges towards a single river that eventually reaches the sea (or an endorheic basin). Boundaries follow ridgelines.

Crosses 5 administrative regions : Horasan, Narman, Oltu, Pasinler, Tortum

Pfafstetter: 22180069

Sub-basin area

1 116,6km²

Upstream area

1 116,6km²

Discharge

3,11m³/s

Mean elev.

2 072m

Administrative coverage

Hydrographic chain

▼ Drains into

Bassin de Oltu Çayı370 km²

▲ Receives from 0 basins

Source / headwater (no upstream basin)

5 dept-equivalent regions (GADM L2)

Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.

Species present

184 distinct species · 526 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

526 obs · 21 cellules
Obs. / cellule
≥ 131
50–130
20–49
12–19
< 12

Source : GBIF — observations agrégées par hexagones 0.027° × 0.027° (~22km), filtre précision coordonnée < 10 km. Fond carte : OpenFreeMap · © OpenStreetMap.

Ecological tissue

Sample of 33 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 Bassin de Oltu Çayı : 22 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 65 interactions GloBI sur 5 types (connectance 11.6%, filtre Serrano α=0.2). 12 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
34
Interactions affichées
65
Connectance
0.116
Patrimoniales
1
Plus dense que (national)0 %(top 100%)

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

Hydroclimate (BasinATLAS lev08)

Mean T°

5,0°C

Annual rain

543mm

Moisture idx (CMI)

-0,37

Runoff

127mm/an

PET

883mm

AET

465mm

Mean slope

11,7°

Water table

434cm

Forest

5%

Crops

21%

Urban

0%

Protected

0%

HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)