选择合适的生物监测物种是在宽空间尺度上进行生物监测的关键标准。苔藓氧化铜和短枝苔藓。在塞尔维亚的22个偏远地点对地衣Everniaprunastri进行了采样,目的是对其生物浓缩能力进行种间比较。16种潜在有毒元素(PTE)的浓度,Al,Ba,Cd,Co,Cr,Cu,Fe,Hg,Mn,Ni,P,Pb,S,Sr,V,Zn,在样品中测量。在位于同一地点的苔藓之间,线性回归分析(II型)显示仅对几个元素(Cd和S)有显著的决定系数,而对于H.pupressiformevs.地衣,对于更广泛的一组元素(Ba,Cd,Fe,Hg,Mn,Ni,高级)。苔藓中PTEs的比例在某些部位发现比另一种苔藓中更高的浓度。根据PTE比率,H.Cupressiforme积累了比地衣更多的元素含量,但遵循类似的空间模式。此外,主成分分析(PCA)指出,根据所测试的物种,PTE的分组不同。苔藓-苔藓数据的相关性较差,可能是因为对几种短枝属进行了采样,这可能影响了平均属的积累能力。此外,苔藓的形态特征(凹与扁平小叶,爬行与缓冲生命形式)可能代表PTE积累的差异。最后,它应该小心使用更多的生物监测物种,即使是同一属,在同一研究中。
The selection of the appropriate biomonitor species is a crucial criterion for biomonitoring on a broad spatial scale.
Mosses Hypnum cupressiforme and Brachythecium spp. and lichen Evernia prunastri were sampled at 22 remote sites over Serbia aiming interspecies comparison of their bioconcentration capacities. The concentration of 16 potentially toxic elements (PTEs), Al, Ba, Cd, Co, Cr, Cu, Fe, Hg, Mn, Ni, P, Pb, S, Sr, V, and Zn, was measured in the samples. Between the co-located
mosses, linear regression analysis (type II) showed significant determination coefficients only for a couple of the elements (Cd and S), while for H. cupressiforme vs. lichen, significant regression lines were obtained for a broader set of elements (Ba, Cd, Fe, Hg, Mn, Ni, Sr). The ratio of the PTEs in the
mosses discovered higher concentrations in H. cupressiforme than in another moss at some sites and vice versa at other sites. According to the PTE ratios, H. cupressiforme accumulated much more element content than the lichen, but followed a similar spatial pattern. In addition, principal component analysis (PCA) pointed out a different grouping of the PTEs depending on the species tested. The poor correlation of the moss-moss data is perhaps because several species of the genus Brachythecium were sampled, which possibly influenced the average genus accumulation capacity. In addition, morphological features of the
mosses (concave vs. flat leaflets, creeping vs. cushiony life form) presumably delegate differences in PTE accumulation. To conclude, it should be careful with using more biomonitor species, even of the same genus, within the same study.