Ontologia

HydroBASINS lev08 watershed · #5080053860

Bassin · #5080053860

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 : Babatana, Batava, Tavula, Tepakaza

Coastal basinPfafstetter: 53700205

Sub-basin area

518,3km²

Upstream area

518,3km²

Discharge

23,23m³/s

Mean elev.

127m

Administrative coverage

4 dept-equivalent regions (GADM L2)

4 intersecting protected areas

  • Parama Island

    IUCN Not Assigned

    Marine Conservation Area

    2.10 km² overlap

  • Redman

    IUCN Not Reported

    Marine Conservation Area

    0.49 km² overlap

  • Zinoa

    IUCN Not Assigned

    Marine Conservation Area

    0.09 km² overlap

  • Rabakela

    IUCN Not Reported

    Marine Conservation Area

    0.03 km² overlap

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

Species present

272 distinct species · 696 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

696 obs · 10 cellules
Obs. / cellule
≥ 359
359–358
72–358
33–71
< 33

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

Ecological tissue

Sample of 24 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 · #5080053860 : 19 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 20 interactions GloBI sur 3 types (connectance 7.2%, filtre Serrano α=0.2). 5 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
24
Interactions affichées
20
Connectance
0.072
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°

26,4°C

Annual rain

3 556mm

Moisture idx (CMI)

0,62

Runoff

2 098mm/an

PET

1 359mm

AET

1 359mm

Mean slope

5,9°

Water table

169cm

Forest

100%

Crops

1%

Urban

0%

Protected

1%

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