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Registros recuperados: 5
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Ecosystem Modeling for Evaluation of Adaptive Management Policies in the Grand Canyon Ecology and Society
Walters, Carl J; University of British Columbia; c.walters@fisheries.ubc.ca; Korman, Josh; Ecometric Research Inc.; jkorman@ecometric.com; Stevens, Lawrence E; Stevens Ecological Consulting; farvana@aol.com; Gold, Barry; The David and Lucile Packard Foundation; bgold@packard.org.
An Adaptive Environmental Assessment and Management workshop process was used to assist Grand Canyon scientists and managers in developing conceptual and simulation models for the Colorado ecosystem affected by Glen Canyon Dam. This model examines ecosystem variables and processes at multiple scales in space and time, ranging from feet and hours for benthic algal response to diurnal flow changes, to reaches and decades for sediment storage and dynamics of long-lived native fish species. Its aim is to help screen policy options ranging from changes in hourly variation in flow allowed from Glen Canyon Dam, to major structural changes for restoration of more natural temperature regimes. It appears that we can make fairly accurate predictions about some...
Tipo: Peer-Reviewed Reports Palavras-chave: Adaptive management; Aquatic primary productivity; Colorado River; Dam; Ecosystem models; Grand Canyon; Habitat restoration; Hydrology; Insect productivity; Native fishes; Riparian ecosystems; Sediment budget.
Ano: 2000
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Social Infrastructure to Integrate Science and Practice: the Experience of the Long Tom Watershed Council Ecology and Society
Flitcroft, Rebecca L; USDA Forest Service; becky.flitcroft@oregonstate.edu; Dedrick, Dana C; Long Tom Watershed Council Executive Director ; coordinator@longtom.org; Smith, Courtland L; Department of Anthropology, Oregon State University; csmith@oregonstate.edu; Thieman, Cynthia A; Long Tom Watershed Council Restoration Director; restoration@longtom.org; Bolte, John P; Department of Biological and Ecological Engineering, Oregon State University; boltej@engr.orst.edu.
Tipo: Peer-Reviewed article Palavras-chave: Habitat restoration; Oregon; Science and practice; Social infrastructure; Watershed management; Water quality; Watershed councils; Watershed organizations.
Ano: 2009
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Freshwater Ecosystems and Resilience of Pacific Salmon: Habitat Management Based on Natural Variability Ecology and Society
Bisson, Peter A; U.S. Forest Service; pbisson@fs.fed.us; Dunham, Jason B; U.S. Geological Survey; jdunham@usgs.gov; Reeves, Gordon H; U.S. Forest Service; greeves@fs.fed.us.
In spite of numerous habitat restoration programs in fresh waters with an aggregate annual funding of millions of dollars, many populations of Pacific salmon remain significantly imperiled. Habitat restoration strategies that address limited environmental attributes and partial salmon life-history requirements or approaches that attempt to force aquatic habitat to conform to idealized but ecologically unsustainable conditions may partly explain this lack of response. Natural watershed processes generate highly variable environmental conditions and population responses, i.e., multiple life histories, that are often not considered in restoration. Examples from several locations underscore the importance of natural variability to the resilience of Pacific...
Tipo: Peer-Reviewed article Palavras-chave: Pacific salmon; Habitat restoration; Watershed processes; Natural variation.
Ano: 2009
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Freshwater protected areas: an effective measure to reconcile conservation and exploitation of the threatened European eels (Anguilla anguilla)? ArchiMer
Cucherousset, J; Paillisson, J; Carpentier, A; Thoby, V; Damien, J; Eybert, M; Feunteun, Eric; Robinet, T.
For decades, the European eel Anguilla anguilla (L.) population has been declining strongly despite several management attempts, so additional experiments need to be conducted on management measures. The use of freshwater protected areas has been advocated but their efficiency has never been assessed. In this study, we investigated whether the population structure and the silver eel (mature migrating stage) production differ in fished and protected areas within a marsh wetland (Briere, 7000 ha, Northwest France), using an intensive biological study (electrofishing and trapping) and a survey of the traditional fishery (licenses, questionnaires and creel surveys). First, we found that fishermen mainly targeted > 320-mm yellow eels (sedentary stage) using...
Tipo: Text Palavras-chave: Coastal freshwater marsh; Habitat restoration; Protected area; Spawners production; Anguilla anguilla.
Ano: 2007 URL: http://archimer.ifremer.fr/doc/2007/publication-3522.pdf
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Suitability assessment of olive plantations for Iberian Lynx habitat restoration AgEcon
Nekhay, Olexandr; Gonzalez-Arenas, J.; Arriaza Balmón, Manuel.
This study adopts a twofold methodological approach to assessing the suitability of agricultural areas for wildlife habitat restoration. Embedding expert judgements through an Analytic Hierarchy Process (AHP) and Geographical Information Systems (GIS) about the effect of specific elements of the landscape on Iberian lynx (Lynx pardinus) habitat restoration potentiality as an indicator of selection of the most suitable agricultural areas to be transformed to the natural state (Mediterranean forest and scrublands). The case study is the olive (Olea europaea L.) plantations of the mountain areas of Andalusia (Spain) which, because of their low yield, are likely to be abandoned after the decoupling of the EU olive oil subsidies. The results suggest that the...
Tipo: Conference Paper or Presentation Palavras-chave: Analytic hierarchy process (AHP); GIS; Lynx pardinus; Habitat restoration; Spain; Resource /Energy Economics and Policy.
Ano: 2008 URL: http://purl.umn.edu/43603
Registros recuperados: 5
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