Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
4392311 | European Journal of Soil Biology | 2008 | 5 Pages |
Abstract
Knowing whether test species used for single-species toxicity tests are representative of other species provides valuable information because contaminant effects are often extrapolated to the community level based on these tests. To evaluate how representative the sensitivity of the standard test collembolan species Folsomia candida is for Collembola, we devised toxicity tests using the collembolan species Onychiurus yodai and Sinella umesaoi, which exhibit life-forms different from F. candida. Sensitivity to cadmium (Cd) was compared between F. candida and the novel test species. The 50% effective concentrations for reproduction were 154.7, 72.2 and 40.9 mg Cd/kg dry soil for O. yodai, F. candida and S. umesaoi, respectively. Thus, the reproductive sensitivity of F. candida to Cd was between that of the other two species. Increasing reproductive sensitivity to Cd corresponded to increasing activity levels and a more surface-dwelling life-form. Our data may facilitate the generalisation of effect data for F. candida to other species.
Related Topics
Life Sciences
Agricultural and Biological Sciences
Soil Science
Authors
Taizo Nakamori, Satoshi Yoshida, Yoshihisa Kubota, Tadaaki Ban-nai, Nobuhiro Kaneko, Makiko Hasegawa, Ryosaku Itoh,