Trace element concentrations (µg g ⁻ ¹) in bird feathers across different families. Values are presented as mean ± SD, with letters indicating statistically significant differences (p
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Trace element concentrations (µg g ⁻ ¹) in bird feathers across different families. Values are presented as mean ± SD, with letters indicating statistically significant differences (p
创建时间：
2026-02-26
