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
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...
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ftmdpi:oai:mdpi.com:/2073-4441/14/11/1755/ 2023-08-20T04:09:27+02:00 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 Sarun Keithmaleesatti Rongrong Angkaew Mark Gregory Robson agris 2022-05-30 application/pdf https://doi.org/10.3390/w14111755 EN eng Multidisciplinary Digital Publishing Institute Ecohydrology https://dx.doi.org/10.3390/w14111755 https://creativecommons.org/licenses/by/4.0/ Water; Volume 14; Issue 11; Pages: 1755 Mekong River dam breeding success water fluctuation sandbar-nesting birds Text 2022 ftmdpi https://doi.org/10.3390/w14111755 2023-08-01T05:13:16Z 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. Text Ringed Plover MDPI Open Access Publishing Water 14 11 1755 |
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Open Polar |
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MDPI Open Access Publishing |
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English |
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Mekong River dam breeding success water fluctuation sandbar-nesting birds |
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Mekong River dam breeding success water fluctuation sandbar-nesting birds Sarun Keithmaleesatti Rongrong Angkaew Mark Gregory Robson 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 |
topic_facet |
Mekong River dam breeding success water fluctuation sandbar-nesting birds |
description |
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. |
format |
Text |
author |
Sarun Keithmaleesatti Rongrong Angkaew Mark Gregory Robson |
author_facet |
Sarun Keithmaleesatti Rongrong Angkaew Mark Gregory Robson |
author_sort |
Sarun Keithmaleesatti |
title |
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 |
title_short |
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 |
title_full |
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 |
title_fullStr |
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 |
title_full_unstemmed |
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 |
title_sort |
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 |
publisher |
Multidisciplinary Digital Publishing Institute |
publishDate |
2022 |
url |
https://doi.org/10.3390/w14111755 |
op_coverage |
agris |
genre |
Ringed Plover |
genre_facet |
Ringed Plover |
op_source |
Water; Volume 14; Issue 11; Pages: 1755 |
op_relation |
Ecohydrology https://dx.doi.org/10.3390/w14111755 |
op_rights |
https://creativecommons.org/licenses/by/4.0/ |
op_doi |
https://doi.org/10.3390/w14111755 |
container_title |
Water |
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14 |
container_issue |
11 |
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1755 |
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1774722420442136576 |