Ontologia

HydroBASINS lev08 watershed · #1081002630

Bassin de Hana

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 : Cavally, Nawa, San-Pédro

Pfafstetter: 14572064

Sub-basin area

2 632,9km²

Upstream area

2 632,9km²

Discharge

51,88m³/s

Mean elev.

186m

Administrative coverage

Hydrographic chain

▼ Drains into

Bassin de Hana75 km²

▲ Receives from 0 basins

Source / headwater (no upstream basin)

3 dept-equivalent regions (GADM L2)

5 intersecting protected areas

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

Species present

1 114 distinct species · 6 653 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

6 653 obs · 62 cellules
Obs. / cellule
≥ 3 728
50–3 727
9–49
3–8
< 3

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

Ecological tissue

Sample of 6 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 Hana : 6 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 4 interactions GloBI sur 1 type (connectance 26.7%, filtre Serrano α=0.2).

Espèces affichées
6
Interactions affichées
4
Connectance
0.267
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°

25,7°C

Annual rain

1 704mm

Moisture idx (CMI)

0,08

Runoff

646mm/an

PET

1 559mm

AET

1 285mm

Mean slope

2,2°

Water table

75cm

Forest

73%

Crops

5%

Urban

1%

Protected

82%

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