Waterbird population estimates for a key staging site in Kazakhstan: a contribution to wetland conservation on the Central Asian flyway

Schielzeth H, Eichhorn G, Heinicke T, Kamp J, Koshkin MA, Koshkin AV, Lachmann L (2008)
Bird Conservation International 18(01): 71-86.

Journal Article | Published | English

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Abstract
Realistic population size estimates for waterbirds are crucial for the application of wetland conservation strategies, since the identification of internationally important wetlands is based on local numbers relative to the population size of the respective species. Central Asia is a poorly surveyed region that is situated at the intersection of migration routes that lead waterbirds from Western Siberia to the south-west (South-West Asia, East Africa) and to the south-east (South Asia, India). We calculated waterbird population estimates for the Tengiz–Korgalzhyn region, a large wetland complex in the steppe zone of Central Kazakhstan, based on waterbird surveys conducted between 1999 and 2004. For 20 of 43 species analysed the region supported more than 5% of the relevant flyway populations. Five species occurred with more than 40% of the flyway totals, including the Endangered White-headed Duck Oxyura leucocephala and the Vulnerable Dalmatian Pelican Pelecanus crispus. Peak numbers were recorded in summer and autumn and for most species numbers were more than an order of magnitude lower on spring migration compared with autumn migration. We identified 72 individual sites that held more than 20,000 waterbirds or more than 1% of a particular flyway population at least once. These sites are likely to constitute priorities for conservation. The general conservation status of the region is favourable, since many of the important sites are located within a strict nature reserve. However, outside the reserve hunting, fishing and powerline casualties represent conservation issues that should be monitored more carefully in the future.
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Schielzeth H, Eichhorn G, Heinicke T, et al. Waterbird population estimates for a key staging site in Kazakhstan: a contribution to wetland conservation on the Central Asian flyway. Bird Conservation International. 2008;18(01):71-86.
Schielzeth, H., Eichhorn, G., Heinicke, T., Kamp, J., Koshkin, M. A., Koshkin, A. V., & Lachmann, L. (2008). Waterbird population estimates for a key staging site in Kazakhstan: a contribution to wetland conservation on the Central Asian flyway. Bird Conservation International, 18(01), 71-86.
Schielzeth, H., Eichhorn, G., Heinicke, T., Kamp, J., Koshkin, M. A., Koshkin, A. V., and Lachmann, L. (2008). Waterbird population estimates for a key staging site in Kazakhstan: a contribution to wetland conservation on the Central Asian flyway. Bird Conservation International 18, 71-86.
Schielzeth, H., et al., 2008. Waterbird population estimates for a key staging site in Kazakhstan: a contribution to wetland conservation on the Central Asian flyway. Bird Conservation International, 18(01), p 71-86.
H. Schielzeth, et al., “Waterbird population estimates for a key staging site in Kazakhstan: a contribution to wetland conservation on the Central Asian flyway”, Bird Conservation International, vol. 18, 2008, pp. 71-86.
Schielzeth, H., Eichhorn, G., Heinicke, T., Kamp, J., Koshkin, M.A., Koshkin, A.V., Lachmann, L.: Waterbird population estimates for a key staging site in Kazakhstan: a contribution to wetland conservation on the Central Asian flyway. Bird Conservation International. 18, 71-86 (2008).
Schielzeth, Holger, Eichhorn, Götz, Heinicke, Thomas, Kamp, Johannes, Koshkin, Maxim A., Koshkin, Alexej V., and Lachmann, Lars. “Waterbird population estimates for a key staging site in Kazakhstan: a contribution to wetland conservation on the Central Asian flyway”. Bird Conservation International 18.01 (2008): 71-86.
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