Excess zinc uptake in Paronychiurus kimi (Collembola) induces toxic effects at the individual and population levelsExcess zinc uptake in Paronychiurus kimi (Collembola) induces toxic effects at the individual and population levels
- Other Titles
- Excess zinc uptake in Paronychiurus kimi (Collembola) induces toxic effects at the individual and population levels
- Authors
- 손진오; 이윤식; 김용은; 위준; 고은아; 조기종
- Issue Date
- 2019
- Publisher
- 한국환경생물학회
- Keywords
- internal metal concentration; population growth rate; age structure
- Citation
- 환경생물, v.37, no.3, pp.335 - 342
- Indexed
- KCI
- Journal Title
- 환경생물
- Volume
- 37
- Number
- 3
- Start Page
- 335
- End Page
- 342
- URI
- https://scholar.korea.ac.kr/handle/2021.sw.korea/69065
- DOI
- 10.11626/KJEB.2019.37.3.335
- ISSN
- 1226-9999
- Abstract
- The purpose of this study was to investigate the toxic effects of zinc in collembolan Paronychiurus kimi at the individual (survival and juvenile production) and population (population growth and age structure) levels after 28 days of exposure in artificially spiked soil. These toxic effects were interpreted in conjunction with the internal zinc concentrations in P. kimi. The EC50 value for juvenile production based on the total zinc concentration was 457 mg Zn kg-1 dry soil, while the LC50 value for adult survival and ri=0 value for population growth were within the same order of magnitude (2,623 and 1,637 mg Zn kg-1 dry soil, respectively). Significant differences in adult survival, juvenile production, and population growth compared with the control group were found at concentrations of 1,500, 375, and 375 mg Zn kg-1 dry or higher, respectively, whereas significant differences in the age structure, determined by the proportion of each age group in the population, were observed in all treatment groups. It appeared that the internal zinc level in P. kimi was regulated to some extent at soil zinc concentrations of ≤375 mg Zn kg-1 dry soil, but not at high soil zinc concentrations. These results indicate that, despite zinc being regulated by P. kimi, excess zinc exceeding the regulatory capacity of P. kimi can trigger changes in the responses at the individual and population levels. Given that population dynamics are affected not only by individual level but also by population level endpoints, it is concluded that the toxic effects of pollutants should be assessed at various levels.
- Files in This Item
- There are no files associated with this item.
- Appears in
Collections - College of Life Sciences and Biotechnology > Division of Environmental Science and Ecological Engineering > 1. Journal Articles
Items in ScholarWorks are protected by copyright, with all rights reserved, unless otherwise indicated.