Article

Ecosystems

, Volume 16, Issue 3, pp 359-381

Riparian Ecosystems in the 21st Century: Hotspots for Climate Change Adaptation?

  • Samantha J. CaponAffiliated withAustralian Rivers Institute, Griffith University Email author 
  • , Lynda E. ChambersAffiliated withCentre for Australian Weather and Climate Research, Bureau of Meteorology
  • , Ralph Mac NallyAffiliated withAustralian Centre for Biodiversity, School of Biological Sciences, Monash University
  • , Robert J. NaimanAffiliated withSchool of Aquatic and Fishery Sciences, University of WashingtonCentre of Excellence in Natural Resource Management, University of Western Australia
  • , Peter DaviesAffiliated withCentre of Excellence in Natural Resource Management, University of Western Australia
  • , Nadine MarshallAffiliated withCSIRO Ecosystem Sciences
  • , Jamie PittockAffiliated withCrawford School of Public Policy, The Australian National University
  • , Michael ReidAffiliated withSchool of Behavioural, Cognitive and Social Sciences, University of New England
  • , Timothy CaponAffiliated withCSIRO Ecosystem Sciences
    • , Michael DouglasAffiliated withAustralian Rivers Institute, Griffith UniversityNERP Northern Australia Hub and Tropical Rivers and Coastal Knowledge Research Hub, Charles Darwin University
    • , Jane CatfordAffiliated withAustralian Rivers Institute, Griffith UniversitySchool of Botany, The University of MelbourneFenner School of Environment and Society, The Australian National University
    • , Darren S. BaldwinAffiliated withAustralian Rivers Institute, Griffith UniversityCSIRO Land and Water and the Murray-Darling Freshwater Research Centre, LaTrobe University
    • , Michael StewardsonAffiliated withAustralian Rivers Institute, Griffith UniversityDepartment of Infrastructure Engineering, The University of Melbourne
    • , Jane RobertsAffiliated withAustralian Rivers Institute, Griffith UniversityInstitute of Land, Water and Society, Charles Sturt University
    • , Meg ParsonsAffiliated withAustralian Rivers Institute, Griffith UniversitySchool of Population Health, The University of Melbourne
    • , Stephen E. WilliamsAffiliated withAustralian Rivers Institute, Griffith UniversityCentre for Tropical Biodiversity & Climate Change, School of Marine & Tropical Biology, James Cook University

Abstract

Riparian ecosystems in the 21st century are likely to play a critical role in determining the vulnerability of natural and human systems to climate change, and in influencing the capacity of these systems to adapt. Some authors have suggested that riparian ecosystems are particularly vulnerable to climate change impacts due to their high levels of exposure and sensitivity to climatic stimuli, and their history of degradation. Others have highlighted the probable resilience of riparian ecosystems to climate change as a result of their evolution under high levels of climatic and environmental variability. We synthesize current knowledge of the vulnerability of riparian ecosystems to climate change by assessing the potential exposure, sensitivity, and adaptive capacity of their key components and processes, as well as ecosystem functions, goods and services, to projected global climatic changes. We review key pathways for ecological and human adaptation for the maintenance, restoration and enhancement of riparian ecosystem functions, goods and services and present emerging principles for planned adaptation. Our synthesis suggests that, in the absence of adaptation, riparian ecosystems are likely to be highly vulnerable to climate change impacts. However, given the critical role of riparian ecosystem functions in landscapes, as well as the strong links between riparian ecosystems and human well-being, considerable means, motives and opportunities for strategically planned adaptation to climate change also exist. The need for planned adaptation of and for riparian ecosystems is likely to be strengthened as the importance of many riparian ecosystem functions, goods and services will grow under a changing climate. Consequently, riparian ecosystems are likely to become adaptation ‘hotspots’ as the century unfolds.

Keywords

adaptive capacity ecosystem services environmental management floodplains human adaptation vulnerability water resources