Cadmium regulation by Lasius niger:A contribution to understanding high metal levels in ants

• 来源期刊: 中国昆虫科学（英文版）
• 关键词: accumulation ants elimination heavy metals pollution gradient regulation
• 年，卷（期）: 2009,（1）
• 页码范围: 89-92
• 页数: 4页
• 语种: 英文
• DOI: 10.1111/j.1744-7917.2009.00258.x

摘要

Ants(Formicinae.Hymenoptera)are considered efficient accumulators of Zn and Cd.In this study the relationship between Cd concentrations in soil and in Lasius niger workers was assessed for 20 colonies located along a gradient of Cd pollution.As soil Cd concentration increased from 1 to 8 mg/kg.ant body Cd concentration increased rapidly to about 40mg/kg,andremained stable atthislevel,through a progressive increase of soil Cd concentration from 8 to 21 mg/kg.The phase of rapid increase confirms the high ability of L niger for Cd accumulation.while the stabilization of Cd body concentration indicates either increasing elimination rate or decreasing rate of uptake.Therefore it Can be concluded that Lasius niger has a high ability to accumulate Cd,but simultaneously an ability for Cd regulation was detected.