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Location India, Tamil Nadu
Central coordinates 79o 18.88' East  10o 42.32' North
IBA criteria A1
Area 128 ha
Altitude
Year of IBA assessment 2004

Bombay Natural History Society



Site description The Vaduvoor Lake Bird Sanctuary is situated in the Tiruvarur district of Tamil Nadu. It is c. 24 km from Thanjavur and 15 km from Mannargudi. The Lake has a depth of c. 2.5 m, and receives water mainly from the northeast monsoon and the Vennaru river. The Lake irrigates about 1,356 acres of agricultural land. Nayvasal and Vaduvoor villages are situated around the Sanctuary. The road to Mannargudi borders one side of the Lake. The other sides are protected by huge bunds. Migratory birds start to arrive by October and stay till February to March. This freshwater lake is rich in aquatic flora, with submerged, floating and emergent vegetation. Ipomoea carnea is seen in many parts of the Lake. There are thickets of Prosopis chilensis. The Forest Department has planted Acacia nilotica in the lake environs.

Key Biodiversity 

AVIFAUNA: The Sanctuary is well known for several species, notably the Spotbilled Pelican Pelecanus philippensis. Several thousand migratory birds congregate in Vaduvoor during the winter. Detailed studies on the avifauna of this IBA are required. Presently, it can be considered as Data Deficient.

OTHER KEY FAUNA: Few published records are available on the fish, reptile and amphibian fauna of this lake. Some of fish recorded are Ambassis urotaenia, Channa punctatus, Ophiocephalus sp. and Mystus tenegra.

Populations of IBA trigger species

Species Season Period Population estimate Quality of estimate IBA Criteria IUCN Category
Spot-billed Pelican Pelecanus philippensis resident  2004  present  A1  Near Threatened 

IBA Monitoring

2003 high not assessed not assessed
unset
Good - based on reliable and complete / representative data

Agriculture and aquaculture annual & perennial non-timber crops - small-holder farming happening now small area/few individuals (<10%) slow but significant deterioration low
Agriculture and aquaculture livestock farming and ranching (includes forest grazing) - small-holder grazing, ranching or farming happening now small area/few individuals (<10%) slow but significant deterioration low
Biological resource use fishing & harvesting aquatic resources - unintentional effects: subsistence/small scale happening now some of area/population (10-49%) no or imperceptible deterioration low
Biological resource use hunting & collecting terrestrial animals - intentional use (species being assessed is the target) happening now small area/few individuals (<10%) moderate to rapid deterioration low
Invasive & other problematic species, genes & diseases invasive non-native/alien species/diseases - named species happening now some of area/population (10-49%) slow but significant deterioration medium
Pollution agricultural & forestry effluents - herbicides and pesticides happening now some of area/population (10-49%) slow but significant deterioration medium
Pollution agricultural & forestry effluents - soil erosion, sedimentation happening now majority/most of area/population (50-90%) moderate to rapid deterioration high

Protected areas

Protected area Designation Area (ha) Relationship with IBA Overlap with IBA (ha)  
Vaduvoor Sanctuary 128 is identical to site 128  

Habitats

IUCN habitat Habitat detail Extent (% of site)
Artificial - aquatic   -

Land use

Land-use Extent (% of site)
agriculture -
Notes: Agriculture
fisheries/aquaculture -
Notes: Fishing
water management -
Notes: Water management

Acknowledgements Key contributor: V. Kannan.

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Recommended citation  BirdLife International (2015) Important Bird Areas factsheet: Vaduvoor Lake Bird Sanctuary. Downloaded from http://www.birdlife.org on 30/08/2015

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