Outstanding features of the fifth edition include:
A global outlook with examples from every continent
Discussions of the impact of environmental challenges (e.g., climate change, eutrophication, river regulation) with case studies of real-world examples
A chapter devoted to wetlands
A thorough examination of biogeochemistry, including recent anthropogenic alteration and a reconsidered understanding of stoichiometric relationships
Expanded treatment of hydrology, utilizing empirical approaches to discharge determination and effects of land-use changes
A reorganized presentation of biodiversity, explicitly correlating profiles of biota with community ecology and ecosystem function
Updated taxonomy with a description of the new metagenomic approach, nomenclature strictly adhering to the intergovernmental Integrated Taxonomic Information System
Title of related interest also available from Waveland Press: Havel, Laboratory Exercises for Freshwater Ecology (ISBN 9781478626794).