Volta
Challenging the value of a pseudoreplicated study: A comment to Liu et al. (2024)
Unknown authors
· 2024
hash_id: b6b0a6430e1d4dbaa04aac362f72e6046316d05195aeb06c3d92c4f4073a8f44
· DOI: 10.1016/j.sajb.2024.09.019
• The study by Liu et al. (2024) is considered pseudoreplicated. • The lack of replication significantly undermines its value. • Replication could be achieved with reasonably low effort. The paper by Liu et al. (2024) presents measurements of herbivory and six plant traits considered potential antiherbivore defences in seven plant species across two study plots: one mined and one adjacent unmined plot. I argue that this experimental design is inadequate for testing the authors' hypothesis that differences in herbivory and plant traits between these two plots are due to pollution impact, as the study lacks replication of pollution levels. This issue, which could have been easily addressed when designing the study, reflects insufficient attention to experimental design and seriously …