Ontologia

HydroBASINS lev08 watershed · #1080971490

Bassin de Tolofa Creek

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 : Ese-Odo, Irele, Ovia South-West

Pfafstetter: 14303043

Sub-basin area

758,4km²

Upstream area

5 505,4km²

Discharge

154,41m³/s

Mean elev.

41m

Administrative coverage

Hydrographic chain

▼ Drains into

Bassin de Lagos Creek743 km²

▲ Receives from 2 basins

3 dept-equivalent regions (GADM L2)

2 intersecting protected areas

  • Okomu

    IUCN II

    Forest Reserve

    197.84 km² overlap

  • Ejigbobini

    IUCN Not Reported

    Forest Reserve

    7.74 km² overlap

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

Species present

127 distinct species · 696 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

696 obs · 15 cellules
Obs. / cellule
≥ 113
107–112
88–106
33–87
< 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 19 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 Tolofa Creek : 15 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 16 interactions GloBI sur 3 types (connectance 9.4%, filtre Serrano α=0.2). 4 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
19
Interactions affichées
16
Connectance
0.094
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°

26,7°C

Annual rain

1 994mm

Moisture idx (CMI)

0,21

Runoff

1 045mm/an

PET

1 579mm

AET

1 184mm

Mean slope

1,4°

Water table

76cm

Forest

20%

Crops

60%

Urban

2%

Protected

25%

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