Department of Zoology and Anthropology, Constantine Philosopher University, Nábrežie mládeže 91, 949 74, Nitra, Slovak Republic.
Environ Monit Assess. 2010 Dec;171(1-4):651-60. doi: 10.1007/s10661-010-1310-1. Epub 2010 Feb 5.
Heavy metal content in the femora of yellow-necked mouse (Apodemus flavicollis) and wood mouse (Apodemus sylvaticus) caught in different polluted biotopes of a low hill level in Slovakia (Nováky and Kolínany) was investigated in the present study. Length, weight and histological structure of mouse bones have also been analysed. According to our results, higher concentrations of Cd, Ni, Fe, Cu and Zn were detected in the femora of A. flavicollis from Kolínany area. Similarly, we observed higher concentrations of Ni, Fe, Cu and Zn in the bones of A. sylvaticus trapped at the same biotope. Significant differences were observed for concentrations of Ni and Zn in both species (P<0.05). The measured values for bone length and bone weight were higher in yellow-necked mice and wood mice from Nováky locality (P<0.01). Histological observation of thin sections from femora of A. flavicollis and A. sylvaticus revealed an outer and inner non-vascular lamellar layer around a poorly developed reticular layer. We did not identify demonstrable changes in qualitative histological characteristics of the femora between the mice (A. flavicollis and A. sylvaticus separately) from different types of polluted environment. Also, no statistically significant differences for all the measured variables of primary osteons' vascular canals were observed. Correlation analysis in yellow-necked mouse showed high positive relation between bone weight and bone length (r=0.66), area and perimeter (r=0.87) and perimeter and maximum diameter (r=0.87). In wood mouse, high positive correlation between bone weight and bone length (r=0.80), area and perimeter (r=0.72), area and maximum diameter (r=0.66) and perimeter and maximum diameter (r=0.74) was found. Our results demonstrate slightly elevated accumulation of some heavy metals in the femora of yellow-necked mouse and wood mouse from Kolínany biotope and thus give an evidence of a contamination of the environment.
本研究调查了在斯洛伐克低山地区不同污染生境中捕获的黄颈鼠（Apodemus flavicollis）和林鼠（Apodemus sylvaticus）股骨中的重金属含量，并分析了鼠骨的长度、重量和组织学结构。根据我们的结果，在科林纳地区的黄颈鼠股骨中检测到更高浓度的 Cd、Ni、Fe、Cu 和 Zn。同样，我们观察到在同一生境中捕获的林鼠的骨骼中 Ni、Fe、Cu 和 Zn 的浓度更高。两种物种的 Ni 和 Zn 浓度均存在显著差异（P<0.05）。在 Nováky 地区，黄颈鼠和林鼠的骨长和骨重测量值均较高（P<0.01）。对 A. flavicollis 和 A. sylvaticus 股骨的薄片进行组织学观察，发现了一个围绕着发育不良的网状层的外层和内层非血管层状结构。我们没有在不同污染环境中捕获的黄颈鼠和林鼠（A. flavicollis 和 A. sylvaticus 分别）的股骨中发现定性组织学特征有明显变化。此外，对于所有初级骨管血管的测量变量均未观察到统计学上的显著差异。在黄颈鼠中进行的相关分析显示，骨重与骨长之间存在高度正相关（r=0.66），面积与周长（r=0.87）和周长与最大直径（r=0.87）之间存在高度正相关。在林鼠中，发现骨重与骨长之间（r=0.80）、面积与周长之间（r=0.72）、面积与最大直径之间（r=0.66）以及周长与最大直径之间（r=0.74）存在高度正相关。我们的结果表明，在科林纳生境中捕获的黄颈鼠和林鼠的股骨中，一些重金属的积累略有增加，这表明环境受到了污染。
