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Article

Impact of Water Fluctuation from a Dam on the Mekong River on the Hatching Success of Two Sandbar-Nesting Birds: A Case Study from Bueng Kan Province, Thailand

1
Department of Environmental Science, Faculty of Science, Khon Kaen University, Khon Kaen 40002, Thailand
2
Conservation Ecology Program, School of Bioresources and Technology, King Mongkut’s University of Technology Thonburi, Bangkok 10150, Thailand
3
School of Environmental and Biological Sciences, Rutgers the State University of New Jersey, New Brunswick, NJ 08901, USA
*
Author to whom correspondence should be addressed.
Academic Editors: Yuankun Wang and Feng Huang
Water 2022, 14(11), 1755; https://doi.org/10.3390/w14111755
Received: 19 April 2022 / Revised: 23 May 2022 / Accepted: 27 May 2022 / Published: 30 May 2022
(This article belongs to the Special Issue The Role of Dam to the River Water Environment)
Dam construction for the provision of hydropower and a stable water supply poses a major threat to freshwater biodiversity. Water fluctuation due to dam management has adverse effects on local people and biodiversity in downstream areas, including sandbar-nesting birds. The aim of this research was to determine the effect of water levels controlled by upstream dams on the breeding success of two sandbar-nesting birds, the little ringed plover, Charadrius dubius, and little pratincole, Glareola lacteal, along the Mekong River in Bueng Kan Province, Thailand. During January–May 2018, we found 160 active nests of only two species, the little ringed plover (n = 26 nests, 288 exposure days) and the little pratincole (n = 134 nests, 890 exposure days). Their nest success rates were 19.49 ± 7.52% and 5.54 ± 1.61%, respectively. Predation was a major cause of nest failure for both species (n = 82), followed by flooding (n = 44). We found a significantly increased probability of nest flooding when the water level was higher than when the nest was initiated for those located closer to the water, particularly during March and April, when water levels fluctuated. Our results indicate that dams threaten sandbar-nesting species. View Full-Text
Keywords: Mekong River; dam; breeding success; water fluctuation; sandbar-nesting birds Mekong River; dam; breeding success; water fluctuation; sandbar-nesting birds
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MDPI and ACS Style

Keithmaleesatti, S.; Angkaew, R.; Robson, M.G. Impact of Water Fluctuation from a Dam on the Mekong River on the Hatching Success of Two Sandbar-Nesting Birds: A Case Study from Bueng Kan Province, Thailand. Water 2022, 14, 1755. https://doi.org/10.3390/w14111755

AMA Style

Keithmaleesatti S, Angkaew R, Robson MG. Impact of Water Fluctuation from a Dam on the Mekong River on the Hatching Success of Two Sandbar-Nesting Birds: A Case Study from Bueng Kan Province, Thailand. Water. 2022; 14(11):1755. https://doi.org/10.3390/w14111755

Chicago/Turabian Style

Keithmaleesatti, Sarun, Rongrong Angkaew, and Mark Gregory Robson. 2022. "Impact of Water Fluctuation from a Dam on the Mekong River on the Hatching Success of Two Sandbar-Nesting Birds: A Case Study from Bueng Kan Province, Thailand" Water 14, no. 11: 1755. https://doi.org/10.3390/w14111755

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