Commune · IND
Thanjavur
India
Species observed
474
Observations
38 630
Area
878,7km²
Ecological tissue
Sample of 31 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 Thanjavur : 23 espèces dont 3 patrimoniales (LR IUCN CR/EN/VU) reliées par 43 interactions GloBI sur 4 types (connectance 8.7%, 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).
Species present
474 distinct species · 38 630 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Climate
Mean T°
28,8°C
Annual rain
969mm
Warmest m°
38,1°C
Coldest m°
20,1°C
Elevation: 60 m on average (min 36 m, max 117 m)
Bioclimatic details19 BIO + Köppen full + altitude statsExpert
CHELSA BIO 1-19 v2.1 · ETOPO DEM 60s · Köppen-Geiger 1991-2020 (Beck et al. 2018)
Soil & lithology
pH H₂O
7,5
Org. C
20,6g/kg
Clay
37,4%
Sand
34,5%
Silt
28,1%
Average over 0-30 cm. Per-depth details in expert panel.
Dominant lithology: mtGLiMaggregated to Thanjavur
3 soil depths detailed0-5cm / 5-15cm / 15-30cm × 5 propsExpert
SoilGrids 250m (ISRIC, 2017) · GLiM v1.0 (Hartmann & Moosdorf 2012)
Land cover
Copernicus Global Land Cover 100m (Buchhorn et al. 2020)
Hydrology6 basins · 12 lakes · 8 rivers
Hydrology metrics for this exact territory
Stream length here
126,9km
Lake surface here
2,81km²
Basins crossed
6
Max stream order
6
Max drainage
75 846km²
Discharge in basins
14,4m³/s
Mean precip.
997mm/an
Mean T°
28,7°C
Moisture idx
-0,40
Mean runoff
267mm/an
Mean elev. (basins)
44m
Watersheds crossing here
- Bassin de Vettar Riversub-area1 500,6 km²overlap487.89 km²56%
- Bassin de Vennarsub-area959,8 km²overlap144.29 km²16%
- Bassin de Nasuvunni Riversub-area389,9 km²overlap81.22 km²9%
- Bassin de Maharajasamudram Riversub-area1 650,7 km²overlap75.88 km²9%
- Bassin de Kollidamsub-area2 073,9 km²overlap57.72 km²7%
- Bassin de Pamani Riversub-area1 403,2 km²overlap31.67 km²4%
Lakes (12, top by area)
- Lac 1401851area0,6 km²avg depth1.4 m
- Lac 1401847area0,4 km²avg depth1.5 m
- Lac 1401849area0,4 km²avg depth1.3 m
- Lac 1401835area0,2 km²avg depth0.9 m
- Lac 1401871area0,2 km²avg depth1.2 m
- Lac 1401890area0,2 km²avg depth1.1 m
- Lac 1401881area0,2 km²avg depth1.3 m
- Lac 1401870area0,2 km²avg depth1.3 m
- Lac 1401853area0,2 km²avg depth0.9 m
Rivers / streams (8, ord ≥ 4)
- Grand Anaicut Canalord 3len here37.74 km95%total40 km
- Vennarord 2len here37.70 km67%total56 km
- Grand Anaicut Canalord 1len here14.37 km74%total19 km
- Vennarord 3len here12.74 km100%total13 km
- Kollidamord 6len here7.97 km3%total259 km
- Vallam Arord 3len here6.16 km25%total24 km
- Grand Anaicut Canalord 1len here5.72 km100%total6 km
- Streamord 1len here4.48 km45%total10 km
Live spatial overlap (cached after first hit) · HydroBASINS lev08 × HydroLAKES × HydroRIVERS v10
Human pressure
Pop. density
7hab/km²
Night light
1,8nW
Built-up
216,1%
Pesticides
4,0kg/km²
GHSL POP/Built 2020 · VIIRS lumière nocturne · PEST-CHEMGRIDS 2020 (Maggi et al.)