Skip to Main Content
Using natural disturbance and portfolio concepts to guide aquatic-riparian ecosystem managementAuthor(s): Brooke E. Penaluna; Gordon H. Reeves; Zanethia Barnett; Peter A. Bisson; John M. Buffington; Andy Dolloff; Rebecca Flitcroft; Charles H. Luce; Keith Nislow; John Rothlisberger; Mel. Warren
Source: Fisheries Magazine
Publication Series: Scientific Journal (JRNL)
Station: Southern Research Station
Download Publication (1.0 MB)
DescriptionThe U.S. Forest Service and other federal land managers are responsible for maintaining the productivity of aquatic–riparian ecosystems, the associated native biota, and the ecosystem services they provide. These public lands are important sources of water, recreation opportunities, and habitat for a suite of animals and plants, including many that are protected under the Endangered Species Act. To meet these challenges and responsibilities, recent science suggests modifying practices to provide a broader array of habitat, biological conditions, and ecosystem functions than are associated with traditional management approaches. We suggest that by linking approaches based on natural disturbance and portfolio concepts, managers can achieve a robust strategy and desired outcomes more reliably and cost effectively. Locally complex habitat conditions created by natural disturbances provide the template for biological diversity to play out provided enough time. Accordingly, natural disturbance regimes play an important role in creating and sustaining habitat and biological complexities on the landscape, and management actions can emulate natural disturbance processes at appropriate spatial and temporal scales where possible. The portfolio effect (i.e., diversity that mitigates risk) provides justification for promoting connected heterogeneous habitats that reduce the risk of synchronous large–scale population and ecosystem collapse. In this paper, we describe how disturbance and portfolio concepts fit into a broader strategy of conserving ecosystem integrity and dynamism, and provide examples of how these concepts can be used to address a wide range of management concerns. Ultimately, the outcome for populations, habitats, and landscapes depends on how well environmental change is understood, the degree to which change is appropriately addressed by natural resource managers, and on solutions that allow populations and ecosystems to persist in the presence of and be resilient to a growing scope of human influences.
- You may send email to email@example.com to request a hard copy of this publication.
- (Please specify exactly which publication you are requesting and your mailing address.)
- We recommend that you also print this page and attach it to the printout of the article, to retain the full citation information.
- This article was written and prepared by U.S. Government employees on official time, and is therefore in the public domain.
CitationPenaluna, Brooke E.; Reeves, Gordon H.; Barnett, Zanethia; Bisson, Peter A.; Buffington, John M.; Dolloff, Andy; Flitcroft, Rebecca; Luce, Charles H.; Nislow, Keith; Rothlisberger, John; Warren, Mel. . 2018. Using natural disturbance and portfolio concepts to guide aquatic-riparian ecosystem management. Fisheries | Vol. 43 • No. 9 • September 2018 pages 406 -422.
KeywordsResilience, recovery, reference conditions, diversity, freshwater
- Forest aesthetics, biodiversity, and the perceived appropriateness of ecosystem management practices
- Aquatic biodiversity in forests: a weak link in ecosystem services resilience
- Climate as an agent of change in forest landscapes
XML: View XML