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作 者 ：江红星,楚国忠,侯韵秋

期 刊 ：生态学报 2002年 22卷 7期 页码：999~1004

关键词：黑嘴鸥；觅食地；营巢地；生境选择；巢址选择因子；江苏盐城；

Keywords:VAMF, red clover, different phosphorus sources, organic phosphorus,

摘 要 ：对江苏盐城黑嘴鸥繁殖期觅食地和营巢地及其主要特征进行了调查。黑嘴鸥繁殖觅食地有盐田、碱蓬滩、草滩、水产品养殖塘、农田、泥质滩涂及河口港汊 7种类型。生境选择的结果表明黑嘴鸥对碱蓬滩涂和泥质滩涂都有正选择性 ,对农田和河口港汊具有负选择性 ,繁殖前期对养殖塘具有正选择性 ;不同繁殖时期黑嘴鸥对碱蓬滩和养殖塘的利用情况变化最明显 ;两年中 ,黑嘴鸥对河口港汊的利用情况稳定。黑嘴鸥营巢地有獐毛滩、碱蓬滩和大米草滩 3种类型 ,其中碱蓬滩是其主要营巢栖息地。对巢址选择因子的分析的结果表明 :影响黑嘴鸥巢址选择的因子主要有 4类 ,依次为 :植被盖度和群集度、人为活动干扰强度、底栖生物量及距水源距离 ,其贡献率分别是 2 6 .2 3%、2 0 .5 5 %、1 4 .82 %、1 4 .0 2 %。

Abstract:This article shows the characteristics of foraging and nesting habitats for Saunders‘ Gull ( Larus saundersi ) in Yancheng Biosphere Reserve. Seven types of foraging habitats for Saunders‘ Gull were recorded: saltworks, Suaeda yhaura beaches, tidal grassland, aquatic ponds, farmlands, tidal mud-field, and rivers and streams. We compared the habitat availability with utilization in these seven habitats. The results showed that Suaeda yhaura beaches and tidal mud-fields were positively selected by Saunders‘ G...

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