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首页> 外文期刊>Environmental toxicology and chemistry >CADMIUM, LEAD, AND MERCURY LEVELS IN FEATHERS OF SMALL PASSERINE BIRDS: NONINVASIVE SAMPLING STRATEGY
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CADMIUM, LEAD, AND MERCURY LEVELS IN FEATHERS OF SMALL PASSERINE BIRDS: NONINVASIVE SAMPLING STRATEGY

机译：小ASS鸟羽毛中的镉，铅和汞含量：无侵害性采样策略

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摘要

Bird feathers have been widely used as a nondestructive biological material for monitoring heavy metals. Sources of metals taken up by feathers include diet (metals are incorporated during feather formation), preening, and direct contact with metals in water, air, dust, and plants. In the literature, data regarding the origin of trace elements in feathers are not univocal. Only in the vast literature concerning mercury (as methyl mercury) has endogenous origin been determined. In the present study, we investigate cadmium, lead, and mercury levels in feathers of prey of Falco eleonorae in relation to the ecological characteristics (molt, habitat, and contamination by soil) of the different species. Cluster analysis identified two main groups of species. Differences and correlations within and between groups identified by cluster analysis were then checked by nonparametric statistical analysis. The results showed that mercury levels had a pattern significantly different from those of cadmium and lead, which in turn showed a significant positive correlation, suggesting different origins. Nests of F. eleonorae proved to be a good source for feathers of small trans-Saharan passerines collected by a noninvasive method. They provided abundant feathers of the various species in a relatively small area-in this case, the falcon colony on the Isle of San Pietro, Sardinia, Italy.
机译：鸟羽毛已被广泛用作监测重金属的非破坏性生物材料。羽毛吸收的金属来源包括饮食（羽毛形成过程中会掺入金属），整理和与水，空气，灰尘和植物中的金属直接接触。在文献中，有关羽毛中微量元素来源的数据并非唯一。只有在有关汞（作为甲基汞）的大量文献中才确定了内源性来源。在本研究中，我们调查了不同物种的生态特征（蜕皮，栖息地和土壤污染）相关的猎鹰羽毛中的镉，铅和汞含量。聚类分析确定了两大类物种。然后通过非参数统计分析检查通过聚类分析确定的组内和组之间的差异和相关性。结果表明，汞含量的模式与镉和铅的模式明显不同，而汞含量与镉和铅的含量呈显着正相关，表明来源不同。事实证明，线虫的巢是通过非侵入性方法收集的小跨撒哈拉人雀形目羽毛的良好来源。他们在相对较小的区域提供了各种物种的丰富羽毛-在这种情况下，即意大利撒丁岛圣彼得罗岛的猎鹰殖民地。

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