EXPRESSION OF CONCERN: J. N. Pruitt and J. F. Husak, “Context-Dependent Running Speed in Funnel-Web Spiders from Divergent Populations,” Functional Ecology 24, no. 1 (2010): 165–171, https://doi.org/10.1111/j.1365-2435.2009.01623.x.
This Expression of Concern is for the above article, published online on 07 January 2010 in Wiley Online Library (wileyonlinelibrary.com), and has been issued by agreement between author J. F. Husak; the journal Executive Editor, Enrico Rezende; Managing Editor, Jennifer Meyer; British Ecological Society; and John Wiley & Sons Ltd. In 2020, concerns were raised by author J. F. Husak as well as other third parties about potential data management issues and irregular patterns in the data, which potentially impact the article's conclusions. The authors responded to an inquiry by the journal but author J. N. Pruitt was not able to provide the original data files. Due to the lack of original data available to the authors, the journal contacted the University of Tennessee, Knoxville, where the data were originally collected, to request an investigation. Therefore, the journal published an Editorial Note [https://doi.org/10.1111/1365-2435.13638] to disclose the investigation.
In 2025, the University of Tennessee, Knoxville informed the publisher that it has subsequently closed the investigation due to administrative requirements. The Expression of Concern has been agreed to because the concerns regarding the validity of the data remain unresolved. Therefore, the journal has decided to issue an Expression of Concern to inform and alert readers.