Size matters:wintering ducks stay longer and use fewer habitats on largest Chinese lakes
Background: Evidence suggests that wintering waterbirds have become conspicuously more concentrated at two largest lakes of the Yangtze River Floodplain, East Dong Ting Lake (Hunan Province, 29°20′N, 113°E) and Poyang Lake (Jiangxi Province, 29°N, 116°20′E), relative to other lakes, despite the esta...
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ftuniaarhuspubl:oai:pure.atira.dk:publications/92a43619-b784-4af1-9dc6-93192ea514e7 2023-12-24T10:08:11+01:00 Size matters:wintering ducks stay longer and use fewer habitats on largest Chinese lakes Meng, Fanjuan Li, Hongbin Wang, Xin Fang, Lei Li, Xianghuang Cao, Lei Fox, Anthony David 2019-08 https://pure.au.dk/portal/da/publications/size-matters(92a43619-b784-4af1-9dc6-93192ea514e7).html https://doi.org/10.1186/s40657-019-0167-4 eng eng https://pure.au.dk/portal/da/publications/size-matters(92a43619-b784-4af1-9dc6-93192ea514e7).html info:eu-repo/semantics/openAccess Meng , F , Li , H , Wang , X , Fang , L , Li , X , Cao , L & Fox , A D 2019 , ' Size matters : wintering ducks stay longer and use fewer habitats on largest Chinese lakes ' , Avian Research , vol. 10 , 27 . https://doi.org/10.1186/s40657-019-0167-4 Anas acuta GPS/GSM telemetry Mareca falcata Mareca penelope Winter residency time Yangtze River Floodplain article 2019 ftuniaarhuspubl https://doi.org/10.1186/s40657-019-0167-4 2023-11-30T00:00:12Z Background: Evidence suggests that wintering waterbirds have become conspicuously more concentrated at two largest lakes of the Yangtze River Floodplain, East Dong Ting Lake (Hunan Province, 29°20′N, 113°E) and Poyang Lake (Jiangxi Province, 29°N, 116°20′E), relative to other lakes, despite the establishment of reserves elsewhere. While this relationship is likely due to greater extent of undisturbed habitats in larger lakes, we understand little of the drivers affecting individual behaviours behind this tendency. Methods: We tracked wintering movements of three duck species (Eurasian Wigeon Mareca penelope , Falcated Duck M. falcata and Northern Pintail Anas acuta ) using GPS transmitters, examining differences between the two largest lakes and other smaller lakes in ducks’ habitat use, duration of stay at each lake and the daily distances moved by the tagged birds while at these sites. Results: The Eurasian Wigeon and Falcated Duck stayed five times longer and almost exclusively used natural habitat types at the two large lakes (91‒95% of positions) compared to length of stay time at smaller lakes, where they spent 28‒33 days on average (excluding the capture site) and exploited many more different habitats (including c. 50% outside lakes). Conclusions: Our study is the first to show that shorter length of stay and more varied habitat use by ducks at small lakes may contribute to explaining the apparent regional concentration of numbers present of these and other species at the largest lakes in recent years. This compares with their declining abundance at smaller lakes, where habitat loss and degradation has been more manifest than on the larger lakes. Article in Journal/Newspaper Anas acuta Aarhus University: Research Avian Research 10 1 |
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Open Polar |
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Aarhus University: Research |
op_collection_id |
ftuniaarhuspubl |
language |
English |
topic |
Anas acuta GPS/GSM telemetry Mareca falcata Mareca penelope Winter residency time Yangtze River Floodplain |
spellingShingle |
Anas acuta GPS/GSM telemetry Mareca falcata Mareca penelope Winter residency time Yangtze River Floodplain Meng, Fanjuan Li, Hongbin Wang, Xin Fang, Lei Li, Xianghuang Cao, Lei Fox, Anthony David Size matters:wintering ducks stay longer and use fewer habitats on largest Chinese lakes |
topic_facet |
Anas acuta GPS/GSM telemetry Mareca falcata Mareca penelope Winter residency time Yangtze River Floodplain |
description |
Background: Evidence suggests that wintering waterbirds have become conspicuously more concentrated at two largest lakes of the Yangtze River Floodplain, East Dong Ting Lake (Hunan Province, 29°20′N, 113°E) and Poyang Lake (Jiangxi Province, 29°N, 116°20′E), relative to other lakes, despite the establishment of reserves elsewhere. While this relationship is likely due to greater extent of undisturbed habitats in larger lakes, we understand little of the drivers affecting individual behaviours behind this tendency. Methods: We tracked wintering movements of three duck species (Eurasian Wigeon Mareca penelope , Falcated Duck M. falcata and Northern Pintail Anas acuta ) using GPS transmitters, examining differences between the two largest lakes and other smaller lakes in ducks’ habitat use, duration of stay at each lake and the daily distances moved by the tagged birds while at these sites. Results: The Eurasian Wigeon and Falcated Duck stayed five times longer and almost exclusively used natural habitat types at the two large lakes (91‒95% of positions) compared to length of stay time at smaller lakes, where they spent 28‒33 days on average (excluding the capture site) and exploited many more different habitats (including c. 50% outside lakes). Conclusions: Our study is the first to show that shorter length of stay and more varied habitat use by ducks at small lakes may contribute to explaining the apparent regional concentration of numbers present of these and other species at the largest lakes in recent years. This compares with their declining abundance at smaller lakes, where habitat loss and degradation has been more manifest than on the larger lakes. |
format |
Article in Journal/Newspaper |
author |
Meng, Fanjuan Li, Hongbin Wang, Xin Fang, Lei Li, Xianghuang Cao, Lei Fox, Anthony David |
author_facet |
Meng, Fanjuan Li, Hongbin Wang, Xin Fang, Lei Li, Xianghuang Cao, Lei Fox, Anthony David |
author_sort |
Meng, Fanjuan |
title |
Size matters:wintering ducks stay longer and use fewer habitats on largest Chinese lakes |
title_short |
Size matters:wintering ducks stay longer and use fewer habitats on largest Chinese lakes |
title_full |
Size matters:wintering ducks stay longer and use fewer habitats on largest Chinese lakes |
title_fullStr |
Size matters:wintering ducks stay longer and use fewer habitats on largest Chinese lakes |
title_full_unstemmed |
Size matters:wintering ducks stay longer and use fewer habitats on largest Chinese lakes |
title_sort |
size matters:wintering ducks stay longer and use fewer habitats on largest chinese lakes |
publishDate |
2019 |
url |
https://pure.au.dk/portal/da/publications/size-matters(92a43619-b784-4af1-9dc6-93192ea514e7).html https://doi.org/10.1186/s40657-019-0167-4 |
genre |
Anas acuta |
genre_facet |
Anas acuta |
op_source |
Meng , F , Li , H , Wang , X , Fang , L , Li , X , Cao , L & Fox , A D 2019 , ' Size matters : wintering ducks stay longer and use fewer habitats on largest Chinese lakes ' , Avian Research , vol. 10 , 27 . https://doi.org/10.1186/s40657-019-0167-4 |
op_relation |
https://pure.au.dk/portal/da/publications/size-matters(92a43619-b784-4af1-9dc6-93192ea514e7).html |
op_rights |
info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1186/s40657-019-0167-4 |
container_title |
Avian Research |
container_volume |
10 |
container_issue |
1 |
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1786177876848017408 |