Evaluation of Lake Fragmentation and Its Effect on Wintering Waterbirds in Poyang Lake, China

This study was designed to determine the fragmentation of sub-lakes in winter and its effects on wintering waterbirds in Poyang Lake. Poyang Lake becomes fragmented in winter, which forms many seasonal sub-lakes every year, and have different environmental characteristics. These sub-lakes significan...

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Main Authors: Muhammad Suliman, Wenyou Deng, Qingming Wu, Tariq Ahmad, Xueying Sun, Debela Megersa Tsegaye, Muhammad Sadiq Khan, Ngo Thi Kieu Trang, Hongfei Zou
Format: Article
Language:English
Published: MDPI AG 2024-02-01
Series:Diversity
Subjects:
Online Access:https://www.mdpi.com/1424-2818/16/3/154
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author Muhammad Suliman
Wenyou Deng
Qingming Wu
Tariq Ahmad
Xueying Sun
Debela Megersa Tsegaye
Muhammad Sadiq Khan
Ngo Thi Kieu Trang
Hongfei Zou
author_facet Muhammad Suliman
Wenyou Deng
Qingming Wu
Tariq Ahmad
Xueying Sun
Debela Megersa Tsegaye
Muhammad Sadiq Khan
Ngo Thi Kieu Trang
Hongfei Zou
author_sort Muhammad Suliman
collection DOAJ
description This study was designed to determine the fragmentation of sub-lakes in winter and its effects on wintering waterbirds in Poyang Lake. Poyang Lake becomes fragmented in winter, which forms many seasonal sub-lakes every year, and have different environmental characteristics. These sub-lakes significantly impact winter bird habitats and result in susceptibility to various changes, because birds have different distribution responses. A total of 24 sub-lakes were surveyed from one to five vantage points using point count methods in each sub-lake with binoculars, monocular, and a spotting scope for four consecutive winter seasons. The multi-site dissimilarity Sorensen index measures overlapped between two populations, and the R software “iNEXT” package was used to evaluate the sample coverage test of the study area. We observed 58 wintering waterbird species belonging to 9 orders and 15 families from 2016 to 2020. Spearman correlation analysis showed that the species richness of wintering waterbirds was significantly positively correlated with the sub-lake areas and associated with the richness of habitat type. The WNODF analyses were considerably correlated for sites of waterbirds, mainly with the abundance of forage and conservation of habitat form. The outcomes of this study showed that Maying Lake has the highest local beta diversity, whereas Dacha Lake has the lowest local beta diversity contribution (0.007). This study’s findings demonstrate Poyang Lake’s role in waterbird the habitat suitability of waterbirds, especially for foraging and conservation.
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spelling doaj.art-9a308b78175849e5b81af10c8f4b6f382024-03-27T13:33:45ZengMDPI AGDiversity1424-28182024-02-0116315410.3390/d16030154Evaluation of Lake Fragmentation and Its Effect on Wintering Waterbirds in Poyang Lake, ChinaMuhammad Suliman0Wenyou Deng1Qingming Wu2Tariq Ahmad3Xueying Sun4Debela Megersa Tsegaye5Muhammad Sadiq Khan6Ngo Thi Kieu Trang7Hongfei Zou8College of Wildlife and Protected Area, Northeast Forestry University, No. 26, Hexing Road, Harbin 150040, ChinaCollege of Wildlife and Protected Area, Northeast Forestry University, No. 26, Hexing Road, Harbin 150040, ChinaCollege of Wildlife and Protected Area, Northeast Forestry University, No. 26, Hexing Road, Harbin 150040, ChinaCollege of Wildlife and Protected Area, Northeast Forestry University, No. 26, Hexing Road, Harbin 150040, ChinaCollege of Wildlife and Protected Area, Northeast Forestry University, No. 26, Hexing Road, Harbin 150040, ChinaCollege of Wildlife and Protected Area, Northeast Forestry University, No. 26, Hexing Road, Harbin 150040, ChinaKey Laboratory of Vegetation Restoration and Management of Degraded Ecosystems, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou 510650, ChinaCollege of Wildlife and Protected Area, Northeast Forestry University, No. 26, Hexing Road, Harbin 150040, ChinaCollege of Wildlife and Protected Area, Northeast Forestry University, No. 26, Hexing Road, Harbin 150040, ChinaThis study was designed to determine the fragmentation of sub-lakes in winter and its effects on wintering waterbirds in Poyang Lake. Poyang Lake becomes fragmented in winter, which forms many seasonal sub-lakes every year, and have different environmental characteristics. These sub-lakes significantly impact winter bird habitats and result in susceptibility to various changes, because birds have different distribution responses. A total of 24 sub-lakes were surveyed from one to five vantage points using point count methods in each sub-lake with binoculars, monocular, and a spotting scope for four consecutive winter seasons. The multi-site dissimilarity Sorensen index measures overlapped between two populations, and the R software “iNEXT” package was used to evaluate the sample coverage test of the study area. We observed 58 wintering waterbird species belonging to 9 orders and 15 families from 2016 to 2020. Spearman correlation analysis showed that the species richness of wintering waterbirds was significantly positively correlated with the sub-lake areas and associated with the richness of habitat type. The WNODF analyses were considerably correlated for sites of waterbirds, mainly with the abundance of forage and conservation of habitat form. The outcomes of this study showed that Maying Lake has the highest local beta diversity, whereas Dacha Lake has the lowest local beta diversity contribution (0.007). This study’s findings demonstrate Poyang Lake’s role in waterbird the habitat suitability of waterbirds, especially for foraging and conservation.https://www.mdpi.com/1424-2818/16/3/154lake fragmentationwintering waterbirdsPoyang LakeChina
spellingShingle Muhammad Suliman
Wenyou Deng
Qingming Wu
Tariq Ahmad
Xueying Sun
Debela Megersa Tsegaye
Muhammad Sadiq Khan
Ngo Thi Kieu Trang
Hongfei Zou
Evaluation of Lake Fragmentation and Its Effect on Wintering Waterbirds in Poyang Lake, China
Diversity
lake fragmentation
wintering waterbirds
Poyang Lake
China
title Evaluation of Lake Fragmentation and Its Effect on Wintering Waterbirds in Poyang Lake, China
title_full Evaluation of Lake Fragmentation and Its Effect on Wintering Waterbirds in Poyang Lake, China
title_fullStr Evaluation of Lake Fragmentation and Its Effect on Wintering Waterbirds in Poyang Lake, China
title_full_unstemmed Evaluation of Lake Fragmentation and Its Effect on Wintering Waterbirds in Poyang Lake, China
title_short Evaluation of Lake Fragmentation and Its Effect on Wintering Waterbirds in Poyang Lake, China
title_sort evaluation of lake fragmentation and its effect on wintering waterbirds in poyang lake china
topic lake fragmentation
wintering waterbirds
Poyang Lake
China
url https://www.mdpi.com/1424-2818/16/3/154
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