HydroBASINS lev08 watershed · #4080049360
Bassin de Thiruppu Moddai 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 7 administrative regions : Kebithigollewa, Madhu, Manthai East, Manthai West, Vavuniya +2
Sub-basin area
797km²
Upstream area
797km²
Discharge
6,23m³/s
Mean elev.
73m
Administrative coverage
7 dept-equivalent regions (GADM L2)
- 372.1 km²46.9% of basin
- 172.1 km²21.7% of basin
- Vavuniya SouthVavuniya · Sri Lanka83.8 km²10.6% of basin
- 83.4 km²10.5% of basin
- 66.9 km²8.4% of basin
- Vavuniya NorthVavuniya · Sri Lanka15.2 km²1.9% of basin
- 0.1 km²0.0% of basin
15 intersecting protected areas
Mundumurippu
IUCN IbReserved Forest
111.96 km² overlap
Maduroad
IUCN IbReserved Forest
59.13 km² overlap
Karunkaikulam
IUCN IbReserved Forest
40.07 km² overlap
Puliyankulama
IUCN IbReserved Forest
36.55 km² overlap
Puvarasankulam
IUCN IbReserved Forest
28.21 km² overlap
Melkulam
IUCN IbReserved Forest
21.67 km² overlap
Neenthavil
IUCN IbReserved Forest
15.89 km² overlap
Vavunikulam
IUCN IVSanctuary
14.18 km² overlap
Pampeddi
IUCN IbReserved Forest
8.22 km² overlap
6 more protected areassorted by overlap area
Irampaikulam
IUCN IbReserved Forest
4.85 km² overlap
WedithalathiveNR
IUCN IbNature Reserve
2.34 km² overlap
Mamadu
IUCN IbReserved Forest
2.22 km² overlap
Irasenthirankulam
IUCN IbReserved Forest
0.97 km² overlap
Paddawiya
IUCN IbReserved Forest
0.52 km² overlap
Iranal Illuppalikulam
IUCN IbReserved Forest
0.03 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
121 distinct species · 535 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 41 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 Thiruppu Moddai River : 36 espèces dont 2 patrimoniales (LR IUCN CR/EN/VU) reliées par 40 interactions GloBI sur 3 types (connectance 4.9%, filtre Serrano α=0.2). 5 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°
27,4°C
Annual rain
1 383mm
Moisture idx (CMI)
-0,09
Runoff
351mm/an
PET
1 520mm
AET
950mm
Mean slope
0,7°
Water table
57cm
Forest
55%
Crops
7%
Urban
3%
Protected
20%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)