Ontologia

HydroBASINS lev08 watershed · #5080141370

Bassin de Batang Gadis

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 3 administrative regions : Mandailing Natal, Padang Lawas, Pasaman

Pfafstetter: 51112007

Sub-basin area

1 140,6km²

Upstream area

1 606,4km²

Discharge

52,75m³/s

Mean elev.

789m

Administrative coverage

Hydrographic chain

▼ Drains into

Bassin de Batang Gadis802 km²

▲ Receives from 2 basins

3 dept-equivalent regions (GADM L2)

2 intersecting protected areas

  • Batang Gadis

    IUCN II

    National Park

    82.85 km² overlap

  • Barumun

    IUCN IV

    Wildlife Reserve

    11.47 km² overlap

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

Species present

94 distinct species · 353 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

353 obs · 19 cellules
Obs. / cellule
≥ 110
85–109
17–84
7–16
< 7

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

Ecological tissue

Sample of 16 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 Batang Gadis : 16 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 11 interactions GloBI sur 3 types (connectance 9.2%, filtre Serrano α=0.2).

Espèces affichées
16
Interactions affichées
11
Connectance
0.092
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°

22,5°C

Annual rain

3 343mm

Moisture idx (CMI)

0,51

Runoff

1 332mm/an

PET

1 636mm

AET

1 636mm

Mean slope

13,6°

Water table

333cm

Forest

57%

Crops

26%

Urban

6%

Protected

2%

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