Physical Sciences and Mathematics Commons^™

Intraspecific Variation And Ecosystem Function: Implications For More Effective Post-Restoration Monitoring, Donald J. Benkendorf, Howard H. Whiteman

Watershed Sciences Student Research

The effectiveness of stream restoration is often measured by the recolonization of certain focal species. However, important information regarding intraspecific variation (e.g. size structure) of these species is often ignored. Recent research suggests that intraspecific variation such as body size can have profound effects on food web dynamics and ecosystem functioning. Specifically, intraspecific predator size variation has been posited as a major determinant of a species’ ability to control lower trophic levels and even has the potential to alter trophic cascade intensity. The importance of predator feeding strategy (e.g. omnivory) and changes with body size may also be an important …