Ontologia

HydroBASINS lev08 watershed · #1080008940

Bassin de Sigi

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 : Korogwe, Mkinga, Muheza, Tanga

Pfafstetter: 11733906

Sub-basin area

1 093,8km²

Upstream area

1 094,2km²

Discharge

12,74m³/s

Mean elev.

350m

Administrative coverage

4 dept-equivalent regions (GADM L2)

17 intersecting protected areas

  • Amani

    IUCN Ib

    Nature Forest Reserve

    61.26 km² overlap

  • Longuza

    IUCN Not Reported

    Forest Plantation

    24.42 km² overlap

  • Mtai

    IUCN IV

    Forest Reserve

    23.63 km² overlap

  • Manga

    IUCN IV

    Forest Reserve

    16.61 km² overlap

  • Sengoma

    IUCN IV

    Forest Reserve

    13.41 km² overlap

  • Kwamgumi

    IUCN IV

    Forest Reserve

    12.74 km² overlap

  • Bamba Ridge

    IUCN IV

    Forest Reserve

    11.34 km² overlap

  • Nilo

    IUCN Ib

    Nature Forest Reserve

    10.67 km² overlap

  • Semdoe/Msige

    IUCN IV

    Forest Reserve

    9.87 km² overlap

8 more protected areas

  • Kambai

    IUCN VI

    Forest Reserve

    9.79 km² overlap

  • Kwamrimba

    IUCN IV

    Forest Reserve

    9.68 km² overlap

  • Mlinga

    IUCN Ib

    Forest Reserve

    8.40 km² overlap

  • Bombo East I

    IUCN VI

    Forest Reserve

    7.45 km² overlap

  • Mangrove

    IUCN Not Reported

    Forest Reserve

    6.08 km² overlap

  • Longuza_Kihuhwi Range

    IUCN Not Reported

    Forest Plantation

    5.78 km² overlap

  • Mlungui

    IUCN VI

    Forest Reserve

    1.87 km² overlap

  • Magoroto

    IUCN IV

    Forest Reserve

    1.64 km² overlap

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

Species present

3 824 distinct species · 46 303 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

46 303 obs · 28 cellules
Obs. / cellule
≥ 29 851
1 743–29 850
607–1 742
236–606
< 236

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 Sigi : 23 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 23 interactions GloBI sur 2 types (connectance 7.1%, filtre Serrano α=0.2). 3 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
26
Interactions affichées
23
Connectance
0.071
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°

24,2°C

Annual rain

1 306mm

Moisture idx (CMI)

-0,19

Runoff

369mm/an

PET

1 617mm

AET

1 059mm

Mean slope

7,5°

Water table

357cm

Forest

100%

Crops

0%

Urban

3%

Protected

20%

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