Heavy metal and selenium levels in Franklin's Gull (Larus pipixcan) parents and their eggs.
Heavy metal and selenium levels in Franklin's Gull (Larus pipixcan) parents and their eggs.
复制标题
富兰克林鸥 (Larus pipixcan) 父母及其蛋中的重金属和硒含量。
DOI：
10.1007/bf00213400
复制
发表时间：
1996
影响因子：
4
通讯作者：
Gochfeld,M
中科院分区：
文献类型：
--
作者：
Burger,J;Gochfeld,M
对来自明尼苏达州西北部阿加西国家野生动物保护区繁殖群的 25 对富兰克林鸥 (Larus pipixcan) 的胸羽及其蛋中的铅、镉、汞、铬、硒和锰浓度进行了测量。鸡蛋中的金属浓度代表雌性在鸡蛋形成时隔离在鸡蛋中的金属；而父母体内的金属浓度代表羽毛形成时血液供应中金属的浓度。假设每对羽毛中的雄性较大，则羽毛中的金属浓度没有显着的性别差异，但父母及其卵中的金属浓度存在显着差异。与父母的羽毛相比，鸡蛋的硒和铬浓度明显更高，但所有其他金属的浓度明显较低。雌性卵内或羽毛内的金属浓度之间几乎没有显着相关性，但雄性羽毛内存在相关性。羽毛中的铅和镉对于雄性和雌性均呈正相关。鸡蛋中的铬浓度通常高于文献报道的浓度。鸡蛋和雌性羽毛中的汞浓度与汞呈正相关，与铬和锰呈负相关。
Lead, cadmium, mercury, chromium, selenium, and manganese concentrations were measured in the breast feathers of 25 pairs of Franklin's Gulls (Larus pipixcan) and in their eggs from a breeding colony at Agassiz National Wildlife Refuge in Northwestern Minnesota. Metal concentrations in eggs represent metals sequestered in the egg by females at the time of egg formation; while metal concentrations in parents represent concentrations of metals in the blood supply at the time of feather formation. There were no significant sexual differences in metal concentrations in feathers, assuming the male to be larger of each pair, but there were significant differences between the concentrations of metals in parents and their eggs. Eggs had significantly higher concentrations of selenium and chromium, but significantly lower concentrations of all other metals than the feathers of their parents. There were few significant correlations among metal concentrations within the egg or within the feather of females, but there were correlations for the feathers of males. Lead and cadmium in feathers were positively correlated for both males and females. Chromium concentrations in eggs were generally higher than reported in the literature. The concentrations in eggs and the feathers of females were positively correlated for mercury, and negatively correlated for chromium and manganese.