Pichavaram Mangrove
IUCN VWetland of International Importance (Ramsar Site) · 2022
15 km²
Commune · IND
Chidambaram
India
AwTropical, savannah(100 %)
Species observed
700
Observations
14 038
Area
630,5km²
Ecological tissue
Sample of 23 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 Chidambaram : 15 espèces dont 2 patrimoniales (LR IUCN CR/EN/VU) reliées par 39 interactions GloBI sur 3 types (connectance 14.1%, filtre Serrano α=0.2). 9 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).
Espèces affichées
24
Interactions affichées
39
Connectance
0.141
Patrimoniales
2
Plus dense que (national)0 %(top 100%)
Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).
Species present
700 distinct species · 14 038 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Climate
Mean T°
28,2°C
Annual rain
1 347mm
Warmest m°
35,4°C
Coldest m°
21,8°C
Elevation: 7 m on average (min -8 m, max 23 m)
Bioclimatic details19 BIO + Köppen full + altitude statsExpert
Annual mean temp.
28,2°C
Annual rain
1 347mm
Warmest month
35,4°C
Coldest month
21,8°C
Mean alt.
7m
Min
-8m
Max
23m
Std. dev.
5m
Köppen-Geiger (dominant)
AwTropical, savannah(100 %)Tropical
CHELSA BIO 1-19 v2.1 · ETOPO DEM 60s · Köppen-Geiger 1991-2020 (Beck et al. 2018)
Soil & lithology
pH H₂O
6,8
Org. C
27,6g/kg
Clay
32,2%
Sand
32,9%
Silt
34,9%
Average over 0-30 cm. Per-depth details in expert panel.
Dominant lithology: smGLiMaggregated to Cuddalore
3 soil depths detailed0-5cm / 5-15cm / 15-30cm × 5 propsExpert
0–5 cm
pH H₂O
6,7
Org. C
37,8g/kg
Clay
30,5%
Sand
33,9%
Silt
35,6%
5–15 cm
pH H₂O
6,7
Org. C
24,0g/kg
Clay
32,0%
Sand
32,9%
Silt
35,1%
15–30 cm
pH H₂O
6,8
Org. C
21,0g/kg
Clay
34,1%
Sand
31,9%
Silt
34,0%
SoilGrids 250m (ISRIC, 2017) · GLiM v1.0 (Hartmann & Moosdorf 2012)
Land cover
Forest8.0%
Crops65.0%
Built-up1.9%
Bare soil1.2%
Other (grassland, water…)24.0%
Copernicus Global Land Cover 100m (Buchhorn et al. 2020)
Hydrology7 basins · 6 lakes · 10 rivers
Hydrology metrics for this exact territory
Stream length here
136,3km
Lake surface here
8,01km²
Basins crossed
7
Max stream order
6
Max drainage
78 370km²
Discharge in basins
79,4m³/s
Mean precip.
1 182mm/an
Mean T°
28,5°C
Moisture idx
-0,28
Mean runoff
406mm/an
Mean elev. (basins)
21m
Watersheds crossing here
- Bassin de Vellarsub-area271,1 km²overlap260.44 km²41%
- Bassin de Kollidamsub-area1 823,5 km²overlap197.92 km²31%
- Bassin de Paravanaarusub-area851 km²overlap93.37 km²15%
- Bassin de Back Water Pichavaram Mangrove Forestsub-area62 km²overlap48.40 km²8%
- Basin #28720sub-area56,6 km²overlap27.53 km²4%
- Bassin de Manimutha Riversub-area2 952,6 km²overlap1.91 km²0%
- Bassin de Vellar Riversub-area257,6 km²overlap0.89 km²0%
Lakes (6, top by area)
Rivers / streams (10, ord ≥ 4)
- Vellarord 5len here62.71 km30%total207 km
- Canalord 1len here27.10 km93%total29 km
- Paravanaaruord 4len here12.85 km19%total69 km
- Pazhaya Kollidamord 3len here7.25 km37%total19 km
- Kollidamord 6len here7.13 km3%total259 km
- Back Water Pichavaram Mangrove Forestord 6len here5.46 km60%total9 km
- Back Water Pichavaram Mangrove Forestord 1len here4.66 km100%total5 km
- Uppanaru River ஆறுord 5len here4.60 km100%total5 km
- Vellar Riverord 4len here3.31 km3%total115 km
- Veeranam Canalord 3len here1.20 km5%total23 km
Live spatial overlap (cached after first hit) · HydroBASINS lev08 × HydroLAKES × HydroRIVERS v10
Human pressure
Pop. density
8hab/km²
Night light
1,5nW
Built-up
186,8%
Pesticides
4,6kg/km²
GHSL POP/Built 2020 · VIIRS lumière nocturne · PEST-CHEMGRIDS 2020 (Maggi et al.)
Protected areas1
IUCN V · 1🌊 Marine · 1
WDPA (World Database on Protected Areas) — UNEP-WCMC & IUCN