Earth Surface Processes and Landforms

Cover image for Vol. 40 Issue 9

Edited By: Professor S. N. Lane

Impact Factor: 2.845

ISI Journal Citation Reports © Ranking: 2014: 12/46 (Geography Physical); 31/175 (Geosciences Multidisciplinary)

Online ISSN: 1096-9837

Historical Range of Variability in a Geomorphic Context - Special Issue, May 2013

Guest Editors: Ellen Wohl and Sara Rathburn

The concept of a historical range of variability (HRV) was developed by ecologists investigating the nature of fluctuations in biotic communities and ecosystem processes prior to intensive human alteration of an ecosystem (Morgan et al., 1994; Nonaka and Spies, 2005). In this special volume, HRV is more broadly applied to diverse geomorphic systems. One particular challenge with establishing a range of variability is defining the temporal scale of analysis. The time span of the period delineated as ‘historical’ in this context varies widely, in relation to geographic location and application of the HRV concept. The starting point of the HRV period is typically defined as the approximate date when mean climatic conditions stabilized at values similar to those of the late twentieth century. Depending on geographic setting and context for applying HRV concepts, the starting point might be the latter half of the Holocene or the end of the Little Ice Age.

ESEX Commentary
Introduction to Special issue on the Historical Range of Variability
Ellen Wohl and Sara Rathburn

Using a historical aerial photograph analysis to inform trout habitat restoration efforts
Marshall B. Baillie, Nira L. Salant, John C. Schmidt

How natural are Alpine mountain rivers? Evidence from the Italian Alps.
Francesco Comiti

Use of ergodic reasoning to reconstruct the historical range of variability and evolutionary trajectory of rivers
Kirstie Fryirs, Gary J. Brierley, Wayne D. Erskine

Historical variability and feedbacks among land cover, stream power, and channel geometry along the lower Canadian River floodplain in Oklahoma
Jason P. Julian, Richard E. Thomas, Sayed Moursi, Bruce W. Hoagland, Aondover Tarhule

Post-glacial range of variability in the Conejos River valley, southern Colorado, USA: fluvial response to climate change and sediment supply
Anthony L. Layzell, Martha Cary Eppes, Bradley G. Johnson, John A. Diemer

The role of snow melting upon landslides in the central Argentinean Andes
Stella Moreiras, Maria Sol Lisboa, Leandro Mastrantonio

Natural and historical variability in fluvial processes, beaver activity and climate in the Greater Yellowstone Ecosystem
Lyman Persico, Grant Meyer

The beaver meadow complex revisited – the role of beavers in post glacial floodplain development
Lina E. Polvi, Ellen Wohl

Evaluating channel response to an extreme sedimentation event in the context of historical range of variability: Upper Colorado River, USA
Sara L. Rathburn, Zan K. Rubin, Ellen E. Wohl

Historic range of variability in geomorphic processes as a context for restoration: Rocky Mountain National Park, Colorado, USA
Zan Rubin, Sara L. Rathburn, Ellen Wohl, Dennis L. Harry

The role of vegetation in mitigating the effects of landscape clearing upon dryland stream response trajectory and restoration potential
Nicola Stromsoe, John Nikolaus Callow

The challenge of modeling pool-riffle morphologies in channels with different densities of large woody debris and boulders
Douglas M. Thompson

Combining historical and process perspectives to infer ranges of geomorphic variability and inform river restoration in a wandering gravel-bed river
Cleo Woelfle-Erskine, Andrew C. Wilcox, Johnnie N. Moore

What should these rivers look like? Historical range of variability and human impacts in the Colorado Front Range, USA
Ellen Wohl