Ontologia

HydroBASINS lev08 watershed · #5080003240

Bassin de Lau Tani

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 4 administrative regions : Deli Serdang, Karo, Kota Medan, Langkat

Pfafstetter: 51115916

Sub-basin area

439,8km²

Upstream area

440,1km²

Discharge

14,86m³/s

Mean elev.

241m

Administrative coverage

4 dept-equivalent regions (GADM L2)

5 intersecting protected areas

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

Species present

1 375 distinct species · 3 412 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

3 412 obs · 11 cellules
Obs. / cellule
≥ 1 316
590–1 315
433–589
164–432
< 164

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

Ecological tissue

Sample of 39 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 Lau Tani : 34 espèces dont 2 patrimoniales (LR IUCN CR/EN/VU) reliées par 34 interactions GloBI sur 3 types (connectance 4.1%, filtre Serrano α=0.2). 7 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
41
Interactions affichées
34
Connectance
0.042
Patrimoniales
2
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°

25,6°C

Annual rain

2 332mm

Moisture idx (CMI)

0,27

Runoff

1 241mm/an

PET

1 674mm

AET

1 551mm

Mean slope

3,4°

Water table

90cm

Forest

14%

Crops

48%

Urban

51%

Protected

15%

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