Author(s): T. J. Smith; J. A. Piotrowski; N. C. Young; D. J. Schnoebelen; L. J. Weber
Linked Author(s):
Keywords: Habitat Suitability; Spatial Heterogeneity; Temporal Variability; Numerical Modelling; Upper Mississippi River
Abstract: Understanding of habitat suitability is critical to conservation and management of our natural resources. Many habitat suitability assessments are limited in spatial extent or resolution, and neglect to consider temporal changes in habitat features. The goal of the present study is simulate spatial and temporal trends in physical habitat suitability within large aquatic systems like those found in the Upper Mississippi River (UMR). Using two-dimensional hydrodynamic models, physical habitat metrics important to aquatic species can be predicted over large areas, with high spatial resolution, and with consideration of seasonal and event-driven changes in flow. Coupled with appropriate habitat suitability models, accurate two-dimensional simulations can be valuable tools in the design and management of engineered and natural river systems. Simulations focus on three reaches of the UMR with varying geologic, hydrologic, and hydrodynamic characteristics, and are being used to investigate relationships between these features and physical habitat abundance, diversity, and suitability.
Year: 2011