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引用本文:魏振华,李言阔,单继红,汪凌峰,丁红秀,应钦,钟毅峰,邵瑞清.鄱阳湖小天鹅越冬种群数量动态与空间分布格局.湖泊科学,2018,30(6):1646-1654. DOI:10.18307/2018.0616
WEI Zhenhua,LI Yankuo,SHAN Jihong,WANG Lingfeng,DING Hongxiu,YING Qin,ZHONG Yifeng,SHAO Ruiqing.Population size dynamics and spatial distribution of Tundra Swan Cygnus columbianus wintering in Poyang Lake. J. Lake Sci.2018,30(6):1646-1654. DOI:10.18307/2018.0616
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鄱阳湖小天鹅越冬种群数量动态与空间分布格局
魏振华1, 李言阔1, 单继红2, 汪凌峰3, 丁红秀1, 应钦4, 钟毅峰1, 邵瑞清1
1.江西师范大学生命科学学院, 南昌 330022;2.江西省野生动植物保护管理局, 南昌 330038;3.鄱阳湖南矶湿地国家级自然保护区管理局, 南昌 330038;4.江西农业大学林学院, 南昌 330045
摘要:
2003-2015年,本研究采用地面同步调查法开展了鄱阳湖越冬小天鹅种群监测,分析了鄱阳湖小天鹅越冬种群数量动态和空间分布格局.结果表明13年来鄱阳湖越冬小天鹅平均数量为69417±31309只,虽然种群数量的年际波动较大,但是并无明显的变化趋势.2004年冬季记录到最小种群数量27016只,2013年冬季记录到最大种群数量115710只.每年冬季小天鹅在鄱阳湖呈聚集型空间分布格局,大湖池、珠湖和大汊湖是越冬小天鹅主要活动区.自然保护区系统涵盖了小天鹅重要的越冬湖泊,50.1%±38.2%的越冬小天鹅分布在保护区内.小天鹅在保护区内和保护区外湖泊中的数量并无显著差异,但是小天鹅对保护区外湖泊的利用频次显著高于对保护区内湖泊的利用频次.
关键词:  鄱阳湖  小天鹅  种群数量  空间分布格局
DOI:10.18307/2018.0616
分类号:
基金项目:国家自然科学基金项目(31460107)和江西省水利厅科技项目(KT201436)联合资助.
Population size dynamics and spatial distribution of Tundra Swan Cygnus columbianus wintering in Poyang Lake
WEI Zhenhua1, LI Yankuo1, SHAN Jihong2, WANG Lingfeng3, DING Hongxiu1, YING Qin4, ZHONG Yifeng1, SHAO Ruiqing1
1.College of Life Science, Jiangxi Normal University, Nanchang 330022, P. R. China;2.Wildlife Service of Jiangxi Province, Nanchang 330038, P. R. China;3.Management Bureau of Jiangxi Nanji Wetland National Nature Reserve, Nanchang 330038, P. R. China;4.College of Forestry, Jiangxi Agricultural University, Nanchang 330045, P. R. China
Abstract:
In this study, we monitored the dynamics of population size and distribution of Tundra Swan wintering in Poyang Lake during 2003-2015. The result showed that the average population size of Tundra Swan wintering in Poyang Lake was 69417±31309 over the past thirteen years, with irregular population fluctuation. Over these years, the minimum population size of the Tundra Swan was 27016 in 2004, and the maximum was 115710 in 2013. The wintering Tundra Swan mainly clustered in Dahuchi, Zhuhu and Dachahu, where have been designated nature reserves. On average, 50.1%±38.2% of Tundra Swan wintered in lakes inside nature reserves. There was no significantly difference in the flock size of Tundra Swan between lakes within and outside of the nature reserves. However, compared to the lakes inside the nature reserves, the lakes outside the reserves have been more frequently exploited by the Tundra Swan.
Key words:  Poyang Lake  Tundra Swan  population size  spatial distribution
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