Migratory Waterbirds Response to Coastal Habitat Changes: Conservation Implications from Long-term Detection in the Chongming Dongtan Wetlands, China
Migratory Waterbirds Response to Coastal Habitat Changes: Conservation Implications from Long-term Detection in the Chongming Dongtan Wetlands, China
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DOI：
10.1007/s12237-015-9991-x
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发表时间：
2015
影响因子：
2.7
通讯作者：
Y. Zou;C. Tang;J. Niu;Tianhou Wang;Yonghong Xie;Hao Guo
中科院分区：
文献类型：
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作者：
Y. Zou;C. Tang;J. Niu;Tianhou Wang;Yonghong Xie;Hao Guo
崇明东滩湿地是东亚-澳大拉西亚迁徙路线上水鸟迁徙的重要中转站，其水鸟种群数量的变化与栖息地的变化密切相关。分析了2000 - 2012年该地区优势水鸟种群数量变化与相应生境变化的关系。在自然湿地中，鸭科物种数与海三棱藨草（Scirpus mariqueter，以下简称Scirpus）生境呈显著正相关，与芦苇（Phragmites australis，以下简称Phragmites）生境呈显著负相关。与深水生境呈显著正相关，与互花米草（Spartina alterniflora）生境呈显著负相关。与此同时，沙蜥科的密度与沙蜥的密度也呈显著正相关。在养殖池塘中，鸭科鸟类在冬季的密度变化与养殖池塘的变化呈显著负相关。其他水鸟仅与栖息地表现出正相关或负相关趋势，未达到统计学显著水平。因此，水鸟种群的变化与崇明东滩湿地的自然湿地和养殖池塘的变化显著相关。在迁徙高峰期和越冬期，天然湿地和水产养殖池塘对迁徙水鸟很重要。研究结果对长江沿岸湿地管理策略的制定具有一定的参考价值。
Changes in waterbird populations in relation to changes in their habitat are of great concern in the Chongming Dongtan wetlands, one of the most important stopovers for migrating waterbirds in the East Asian–Australasian Flyway. We analyzed the relationship between the changes in the dominant waterbird populations (Charadriidae, Anatidae, Ardeidae, and Laridae) and the changes in their corresponding habitats from 2000 to 2012. In natural wetlands, the species number of Anatidae was significantly positively correlated with theScirpus mariqueter(hereafterScirpus) habitat but significantly negatively correlated with thePhragmites australis(hereafterPhragmites) habitat. The densities of Charadriidae and Laridae were both significantly positively correlated with the deep water habitat but significantly negatively correlated with theSpartina alterniflora(hereafterSpartina) habitat. The density of Charadriidae, however, also exhibited significantly positive correlation with theScirpushabitat. In the aquaculture ponds, the changes in the density of Anatidae in the winter were significantly negatively correlated with the changes in aquaculture ponds. Other waterbirds only exhibited positive or negative correlation trends with their habitats, which did not reach the statistically significant levels. Consequently, changes in waterbird populations are significantly correlated with changes in natural wetlands and aquaculture ponds in the Chongming Dongtan wetlands. Natural wetlands and aquaculture ponds are important to migratory waterbirds during the peak of migration and wintering. Our results promote the development of wetland management strategies for protecting migratory waterbirds in the coastal area of the Yangtze River.