Ontologia

HydroBASINS lev08 watershed · #1080009460

Bassin de Rufiji

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 : Kilwa, Mafia, Rufiji

Coastal basin 5% lakePfafstetter: 11750101

Sub-basin area

1 229,2km²

Upstream area

1 229,2km²

Discharge

2,6m³/s

Mean elev.

12m

Administrative coverage

3 dept-equivalent regions (GADM L2)

30 intersecting protected areas

  • Rufiji-Mafia-Kilwa

    IUCN Not Reported

    Wetland of International Importance (Ramsar Site)

    897.73 km² overlap

  • Mafia Island

    IUCN VI

    Marine Park

    305.88 km² overlap

  • Mangrove

    IUCN Not Reported

    Forest Reserve

    49.25 km² overlap

  • Mangrove

    IUCN Not Reported

    Forest Reserve

    48.42 km² overlap

  • Mangrove

    IUCN Not Reported

    Forest Reserve

    43.18 km² overlap

  • Mangrove

    IUCN Not Reported

    Forest Reserve

    40.07 km² overlap

  • Mangrove

    IUCN Not Reported

    Forest Reserve

    31.85 km² overlap

  • Mangrove

    IUCN Not Reported

    Forest Reserve

    20.57 km² overlap

  • Mangrove

    IUCN Not Reported

    Forest Reserve

    15.90 km² overlap

21 more protected areas

  • Mangrove

    IUCN Not Reported

    Forest Reserve

    15.13 km² overlap

  • Mangrove

    IUCN Not Reported

    Forest Reserve

    11.93 km² overlap

  • Mangrove

    IUCN Not Reported

    Forest Reserve

    8.61 km² overlap

  • Mangrove

    IUCN Not Reported

    Forest Reserve

    5.01 km² overlap

  • Mangrove

    IUCN Not Reported

    Forest Reserve

    3.11 km² overlap

  • Mangrove

    IUCN Not Reported

    Forest Reserve

    2.96 km² overlap

  • Mangrove

    IUCN Not Reported

    Forest Reserve

    2.22 km² overlap

  • Mangrove

    IUCN Not Reported

    Forest Reserve

    1.99 km² overlap

  • Mangrove

    IUCN Not Reported

    Forest Reserve

    1.75 km² overlap

  • Mangrove

    IUCN Not Reported

    Forest Reserve

    1.48 km² overlap

  • Mangrove

    IUCN Not Reported

    Forest Reserve

    1.24 km² overlap

  • Mangrove

    IUCN Not Reported

    Forest Reserve

    1.04 km² overlap

  • Mangrove

    IUCN Not Reported

    Forest Reserve

    1.01 km² overlap

  • Mangrove

    IUCN Not Reported

    Forest Reserve

    0.95 km² overlap

  • Mangrove

    IUCN Not Reported

    Forest Reserve

    0.93 km² overlap

  • Mangrove

    IUCN Not Reported

    Forest Reserve

    0.88 km² overlap

  • Mangrove

    IUCN Not Reported

    Forest Reserve

    0.84 km² overlap

  • Mangrove

    IUCN Not Reported

    Forest Reserve

    0.81 km² overlap

  • Mangrove

    IUCN Not Reported

    Forest Reserve

    0.39 km² overlap

  • Mangrove

    IUCN Not Reported

    Forest Reserve

    0.34 km² overlap

  • Mangrove

    IUCN Not Reported

    Forest Reserve

    0.32 km² overlap

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

Species present

40 distinct species · 64 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

64 obs · 11 cellules
Obs. / cellule
≥ 24
12–23
5–11
2–4
< 2

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

Ecological tissue

Sample of 9 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 Rufiji : 9 espèces reliées par 7 interactions GloBI sur 2 types (connectance 12.7%, filtre Serrano α=0.2). 2 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
11
Interactions affichées
7
Connectance
0.127
Patrimoniales
0
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°

26,8°C

Annual rain

1 456mm

Moisture idx (CMI)

0,02

Runoff

297mm/an

PET

1 417mm

AET

977mm

Mean slope

0,5°

Water table

43cm

Forest

97%

Crops

1%

Urban

1%

Protected

71%

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