Ontologia

HydroBASINS lev08 watershed · #1081128660

Bassin de Larisora

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 2 administrative regions : Isiolo North, Samburu East

Pfafstetter: 11429014

Sub-basin area

936,5km²

Upstream area

936,7km²

Discharge

1,16m³/s

Mean elev.

1 026m

Administrative coverage

Hydrographic chain

▼ Drains into

Bassin de Ewaso Nyiro3289 km²

▲ Receives from 0 basins

Source / headwater (no upstream basin)

2 dept-equivalent regions (GADM L2)

2 intersecting protected areas

  • Mathews Range

    IUCN Not Reported

    Forest Reserve

    13.55 km² overlap

  • Samburu

    IUCN II

    National Reserve

    7.84 km² overlap

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

Species present

646 distinct species · 4 525 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

4 525 obs · 24 cellules
Obs. / cellule
≥ 842
586–841
174–585
77–173
< 77

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

Ecological tissue

Sample of 21 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 Larisora : 18 espèces dont 5 patrimoniales (LR IUCN CR/EN/VU) reliées par 22 interactions GloBI sur 2 types (connectance 10.5%, filtre Serrano α=0.2). 3 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
21
Interactions affichées
22
Connectance
0.105
Patrimoniales
5
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°

22,7°C

Annual rain

597mm

Moisture idx (CMI)

-0,71

Runoff

40mm/an

PET

2 048mm

AET

504mm

Mean slope

3,9°

Water table

334cm

Forest

0%

Crops

9%

Urban

0%

Protected

2%

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