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Krishnarajasagar Reservoir


Habitats: Freshwater Reservoir and Marshes

Jurisdiction: Major Irrigation Department, Govt of Karnataka

IBA Criteria:
                        1.  A1 (Threated species/Vulnerable) 
      • Oriental White Ibis Threskiornis melanocephalas
      • Spot billed Pelican Pelecanus philippensis


                        2.  A4i (= 1 Biogeographic population)

      • Bar-headed Geese Anser indicus
      • Brown-headed Gulls Larus brunnicephalus
      • Little Stint Calidris minuta
      • Temminck’s Stint Calidris temminckii

                        3.  A4iii (= 20,000 Waterbirds)                                        Fig : Bar-headed Goose in Backwaters

Protection status: Practically not protection

Threats and Conservation Issues 

Pesticides:  Persisting
In summer dried-up marshes along the reservoir shore is utilised to grow vegetables (short-term crop); use of pesticides is alarmingly high 

Siltation: Persisting


Sewage water inflow: New addition
Expansion of towns on shores of three rivers is generating extensive sewage and is getting accumulated in the dam ( mainly domestic sewages & Coffee pulp). 

Extraction of sand from river bed: New addition 
Pumping out sand from river bed using barge mounted pumps