Changes over time

Peter A. Gell, Marie-Elodie Perga, C. Max Finlayson

Research output: Book chapter/Published conference paperChapter in textbook/reference bookpeer-review


Freshwater ecosystems occur on all continents and have been described and classified by a diversity of terms and definitions (Finlayson and van der Valk 1995; Mitsch and Gosselink 2015; Gerbeaux et al. 2018). These are dynamic systems in which the hydrology and geomorphic setting can be affected by natural and anthropogenic activities interacting at multiple spatial and temporal scales to influence the components,biogeochemical processes, functions, and ecosystem services they provide (Millennium Ecosystem Assessment 2005). Defining and classifying freshwater ecosystems into categories(e.g., rivers and streams, lakes and reservoirs, and wetlands) has generally been based on a combination of features, including the landform and geomorphic setting, physical dimensions, vegetation, water quality and water regime, soils, and as habitat for specific fauna (Semeniuk and Semeniuk 1997).
Original languageEnglish
Title of host publicationFreshwater ecology and conservation
Subtitle of host publicationApproaches and techniques
EditorsJocelyne M.R. Hughes
Place of PublicationOxford, United Kingdom
PublisherOxford University Press, USA
Number of pages19
ISBN (Electronic)9780191820908
ISBN (Print)9780198766384
Publication statusPublished - Feb 2019


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