A 2200‐year Record of Seabird Population on Ganquan Island, South China Sea
A 2200‐year Record of Seabird Population on Ganquan Island, South China Sea
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DOI：
10.1111/j.1755-6724.2011.00499.x
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发表时间：
2011-08
期刊：
影响因子：
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通讯作者：
Liqiang Xu;Xiao-dong Liu;Liguang Sun;Hong Yan;Yi Liu;Yuhan Luo;Jing Huang
中科院分区：
文献类型：
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作者：
Liqiang Xu;Xiao-dong Liu;Liguang Sun;Hong Yan;Yi Liu;Yuhan Luo;Jing Huang
对南海甘泉岛107 cm沉积物剖面的地球化学特征进行了分析。根据生物元素（Cu、Zn、Cd、Ba、As、Se、P）含量、210 Pb和AMS 14 C测年，重建了甘泉岛近2200年来的海鸟种群。2200多年前，海鸟在该岛上栖息，其数量波动较大，在2100-1850年和900-300年左右出现两个高峰。1800年来，甘泉岛海鸟种群数量变化与东岛相似。我们研究了海鸟数量和气候之间的关系，发现它相当复杂。在平均气温相对较高的医学暖期（MWP），海鸟数量没有达到最大值;而在气候转型期和小冰期（LIA），海鸟数量在峰值附近维持了约600年，表明甘泉岛气候相对凉爽，有利于海鸟的生存。
Geochemical characteristics of a 107 cm long sediment profile, collected from Ganquan Island, South China Sea, were analyzed. Based on concentrations of bio‐elements (Cu, Zn, Cd, Ba, As, Se, P), 210Pb and AMS14C dating, we reconstructed seabird population of Ganquan Island over the past 2200 years. Seabirds inhabited this island more than 2200 years ago, and their population displayed remarkable fluctuations with two peaks around 2100–1850 yr BP and 900–300 yr BP, respectively. The seabird population change profile on Ganquan Island is similar to that on Dongdao Island over the past 1800 years. We examined the relationship between the seabird population and climate, and found it quite complicated. The seabird population did not reach the maximum during the Medical Warm Period (MWP) with relatively high average temperature; however, it remained near the peak value for about 600 years during the climatic transition period and the Little Ice Age (LIA), indicating that a relatively cool climate is favorable for seabirds on Ganquan Island.