Ontologia

HydroBASINS lev08 watershed · #1081351220

Bassin de Runyina

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 across 2 countries : Chama, Nyika N.P. - Chitipa, Nyika National Park - Rumphi, TA Chikulamayembe

Pfafstetter: 12229040

Sub-basin area

916,1km²

Upstream area

916,6km²

Discharge

3,76m³/s

Mean elev.

1 658m

Administrative coverage

Hydrographic chain

▼ Drains into

Bassin de Rumphi645 km²

▲ Receives from 0 basins

Source / headwater (no upstream basin)

4 dept-equivalent regions (GADM L2)

2 intersecting protected areas

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

Species present

1 151 distinct species · 4 898 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

4 898 obs · 22 cellules
Obs. / cellule
≥ 1 123
795–1 122
139–794
60–138
< 60

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

Ecological tissue

Sample of 26 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 Runyina : 23 espèces dont 2 patrimoniales (LR IUCN CR/EN/VU) reliées par 22 interactions GloBI sur 4 types (connectance 6.8%, filtre Serrano α=0.2). 3 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
26
Interactions affichées
22
Connectance
0.068
Patrimoniales
2
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°

18,1°C

Annual rain

1 026mm

Moisture idx (CMI)

-0,29

Runoff

132mm/an

PET

1 467mm

AET

798mm

Mean slope

8,6°

Water table

360cm

Forest

61%

Crops

21%

Urban

1%

Protected

63%

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