Tracking the concentration of elements in the organs of endangered animal species can provide significant knowledge about environmental hazards and allows more targeted protective measures to be taken. In this paper the differences in concentrations of 27 elements in the livers of free-ranging European bison were studied. The ICP-OES method was applied to study the four main Polish populations, which live in lowland (Białowieska, Knyszyńska and Borecka forests) and mountain (Bieszczady) habitats. The study was based on a unique and relatively large amount of comparative material. It was found that European bison populations that live in different locations differ from each other in terms of the hepatic concentrations of 17 of the elements studied in this work. The mountain population in Bieszczady was most distinctive due to the higher concentrations of Ba, Ca, Cd, Se, and the lower concentrations of Mo and V (compared to the other populations). Additionally, even geographically close lowland populations sometimes have different hepatic concentrations of particular elements. The sex and age of individuals have a weak effect on mineral status. Although the lithosphere is the primary factor that affects the availability of elements for the European bison, the soil parameters and biosphere can significantly affect the availability of elements, e.g. by accumulation. It was also shown that the anthroposphere plays a role, but this is mainly through agriculture as feeding on arable fields significantly changes the mineral status of European bison. The need for further research, especially on Cd, Se and Cu, was indicated. It was concluded that toxic elements or deficiencies in essential elements in the populations of the studied species should be considered locally as this would allow better understanding of the health condition of individual populations.

追踪濒危动物器官中元素的浓度可以提供有关环境危害的大量知识，并可以采取更有针对性的保护措施。本文研究了自由放养的欧洲野牛肝脏中27种元素的浓度差异。ICP-OES方法用于研究波兰的四个主要种群，它们生活在低地（Białowieska，Knyszyńska和Borecka森林）和山区（Bieszczady）的栖息地。该研究基于独特且相对大量的对比材料。研究发现，生活在不同地点的欧洲野牛种群在这项研究中所研究的17种元素的肝浓度方面彼此不同。Bieszczady的山区人口最为独特，这是因为Ba，Ca，Cd，Se的浓度较高，而Mo和V的浓度较低（与其他人口相比）。另外，即使地理上接近的低地人口有时也具有不同的肝脏中特定元素浓度。个体的性别和年龄对矿物质状态影响较小。尽管岩石圈是影响欧洲野牛元素供应的主要因素，但是土壤参数和生物圈会显着影响元素的供应，例如通过积累。研究还表明，人类圈发挥了作用，但这主要是通过农业，因为以耕地为食会大大改变欧洲野牛的矿物质状况。需要进一步研究，特别是对镉，硒和铜的研究，被指示。得出的结论是，应在本地考虑所研究物种种群中的有毒元素或必要元素中的缺陷，因为这样可以更好地了解单个种群的健康状况。