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An extension of the flood pulse concept.
The flood pulse concept of Junk, Bayley and Sparks is a major contribution to our understanding of river–floodplain interactions and has become an important paradigm in lotic ecology. The concept is…
Riverine landscape diversity
1. This review is presented as a broad synthesis of riverine landscape diversity, beginning with an account of the variety of landscape elements contained within river corridors. Landscape dynamics…
The Four-Dimensional Nature of Lotic Ecosystems
- J. Ward
- BiologyJournal of the North American Benthological…
- 1 March 1989
An holistic approach that employs a spatio-temporal framework, and that perceives disturbances as forces disrupting major interactive pathways, should lead to a more complete understanding of the dynamic and hierarchical structure of natural and altered lotic ecosystems.
Implications of Streamflow Variability and Predictability for Lotic Community Structure: A Regional Analysis of Streamflow Patterns
Long-term discharge records of 78 streams from across the continental United States were analyzed and a conceptual model that incorporates the nine stream clusters in a hierarchical structure is presented, showing reasonable geographic affiliation.
The serial discontinuity concept of lotic ecosystems
Biodiversity of floodplain river ecosystems: ecotones and connectivity1
A high level of spatio-temporal heterogeneity makes riverine floodplains among the most species-rich environments known. Fluvial dynamics from flooding play a major role in maintaining a diversity of…
RIVERINE LANDSCAPES: BIODIVERSITY PATTERNS, DISTURBANCE REGIMES, AND AQUATIC CONSERVATION
- J. Ward
- 1 March 1998
To be effective, conservation efforts should be based on a solid conceptual foundation and a holistic understanding of natural river ecosystems, and background knowledge is necessary to re-establish environmental gradients, to reconnect interactive pathways, and to reconstitute some semblance of the natural dynamics responsible for high levels of biodiversity.
Hydrological connectivity, and the exchange of organic matter and nutrients in a dynamic river–floodplain system (Danube, Austria)
Summary 1. The relationship between hydrological connectivity, and the exchange processes of suspended sediments, organic matter and nutrients (NO3-N) was investigated in a dynamically connected…
Ecology of alpine streams
- J. Ward
- 1 October 1994
The view that effects of temperature on generation time and mutation rate determine the speed at which selection proceeds is consistent with altitudinal species richness patterns exhibited by zoobenthos along the alrirudinal gradient and may provide an evolutionary explanation for the low faunal diversity in alpine headwaters.
A landscape perspective of surface-subsurface hydrological exchanges in river corridors
1. River corridors can be visualised as a three-dimensional mosaic of surface–subsurface exchange patches over multiple spatial scales. Along major flow paths, surface water downwells into the…