Ontologia

HydroBASINS lev08 watershed · #5080014460

Bassin de Rio Seiçal

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 : Baucau, Ossu, Quelicai, Vemasse, Venilale

Pfafstetter: 51700254

Sub-basin area

473,3km²

Upstream area

473,3km²

Discharge

4,45m³/s

Mean elev.

441m

Administrative coverage

5 dept-equivalent regions (GADM L2)

4 intersecting protected areas

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

Species present

267 distinct species · 1 209 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

1 209 obs · 9 cellules
Obs. / cellule
≥ 590
590–589
197–589
78–196
< 78

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

Ecological tissue

Sample of 34 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 Rio Seiçal : 27 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 40 interactions GloBI sur 3 types (connectance 7.1%, filtre Serrano α=0.2). 7 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
34
Interactions affichées
40
Connectance
0.071
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°

24,5°C

Annual rain

1 615mm

Moisture idx (CMI)

0,06

Runoff

307mm/an

PET

1 506mm

AET

1 118mm

Mean slope

8,0°

Water table

371cm

Forest

1%

Crops

31%

Urban

0%

Protected

1%

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