Ontologia

HydroBASINS lev08 watershed · #5080003400

Bassin de Sungai Si Pare Pare

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 : Asahan, Batu Bara, Pematangsiantar, Simalungun

Pfafstetter: 51115960

Sub-basin area

1 673,2km²

Upstream area

1 673,7km²

Discharge

77,55m³/s

Mean elev.

507m

Administrative coverage

4 dept-equivalent regions (GADM L2)

1 intersecting protected areas

  • Batu Gajah

    IUCN Not Reported

    Nature Reserve

    0.01 km² overlap

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

Species present

864 distinct species · 2 020 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

2 020 obs · 35 cellules
Obs. / cellule
≥ 506
109–505
22–108
12–21
< 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 22 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 Sungai Si Pare Pare : 20 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 19 interactions GloBI sur 2 types (connectance 8.2%, filtre Serrano α=0.2). 2 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
22
Interactions affichées
19
Connectance
0.082
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°

24,0°C

Annual rain

2 463mm

Moisture idx (CMI)

0,34

Runoff

1 266mm/an

PET

1 608mm

AET

1 566mm

Mean slope

2,4°

Water table

46cm

Forest

14%

Crops

45%

Urban

24%

Protected

0%

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