HydroBASINS lev08 watershed · #6080004970
Bassin de Demerara River
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 19 administrative regions : Chance / Hamlet, City of Georgetown, Demerara Conservancy, Diamond / Golden Grove, Eccles / Ramsburg +14
Sub-basin area
297,7km²
Upstream area
297,8km²
Discharge
8,05m³/s
Mean elev.
3m
Administrative coverage
19 dept-equivalent regions (GADM L2)
- 42.2 km²14.2% of basin
- 38.2 km²12.9% of basin
- 33.0 km²11.1% of basin
- 29.5 km²10.0% of basin
- 23.9 km²8.0% of basin
- 22.5 km²7.6% of basin
- 17.5 km²5.9% of basin
- 15.3 km²5.1% of basin
11 moreFull L2 list
- Herstelling / Little Diamond10.7 km² · 3.6%
- Chance / Hamlet10.4 km² · 3.5%
- Mocha / Arcadia9.1 km² · 3.1%
- Vereeniging / Unity7.6 km² · 2.6%
- Triumph / Beterverwagting6.0 km² · 2.0%
- Enmore / Hope3.8 km² · 1.3%
- Diamond / Golden Grove3.1 km² · 1.0%
- Rising Sun / Profit1.7 km² · 0.6%
- Meer Zorgen / Malgre Tout0.4 km² · 0.1%
- Nismes / La Grange0.3 km² · 0.1%
- Demerara Conservancy0.0 km² · 0.0%
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
1 641 distinct species · 93 460 observations
Source: GBIF Occurrence snapshot 2026-05-01.
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).
Indicateurs du tissu écologique
Tissu écologique de Bassin de Demerara River : 18 espèces reliées par 33 interactions GloBI sur 3 types (connectance 9.4%, filtre Serrano α=0.2). 9 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).
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
2 209mm
Moisture idx (CMI)
0,38
Runoff
855mm/an
PET
1 357mm
AET
1 291mm
Mean slope
0,1°
Water table
5cm
Forest
32%
Crops
44%
Urban
35%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)