|Location||India, Tamil Nadu|
|Central coordinates||79o 18.88' East 10o 42.32' North|
|Year of IBA assessment||2004|
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.
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.
|Species||Season||Period||Population estimate||Quality of estimate||IBA Criteria||IUCN Category|
|Spot-billed Pelican Pelecanus philippensis||resident||2004||present||-||A1||Near Threatened|
|2003||high||not assessed||not assessed|
|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 area||Designation||Area (ha)||Relationship with IBA||Overlap with IBA (ha)|
|Vaduvoor||Sanctuary||128||is identical to site||128|
|IUCN habitat||Habitat detail||Extent (% of site)|
|Artificial - aquatic||-|
|Land-use||Extent (% of site)|
|Notes: Water management|
Acknowledgements Key contributor: V. Kannan.
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Recommended citation BirdLife International (2016) Important Bird and Biodiversity Area factsheet: Vaduvoor Lake Bird Sanctuary. Downloaded from http://www.birdlife.org on 10/02/2016
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