%0 Journal Article %J Ecosystems %D 2003 %T Landscape scale variation in taxonomic diversity in four groups of aquatic organisms: the influence of physical, chemical and biological properties %A Greenfield, B. K. %A Hrabik, T. R. %A Lewis, D.B. %A Wilson, K.A. %A Kratz, T.K. %A Pollard, A %B Ecosystems %G eng