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Registros recuperados: 18 | |
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Lavelle,Patrick. |
Soil zoology and soil ecology have become very active fields of research since the early 1990s. A search in the ISI Web of Science databases showed a steady increase in publications about that theme over the last two decades, and 3,612 bibliographic references were found for that theme for the period of 2004 to 2008. The researches covered mostly soil environmental issues, toxicology and ecology. The issue of theoretical development in soil ecology is discussed, and arguments are presented against the idea that the soil ecology theory is deficient. Finally, the need for a general model of soil function and soil management is discussed and some options are presented to reach this goal. |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Auto organization; Panarchy; Soil ecology; Soil zoology. |
Ano: 2009 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2009000800003 |
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Holling, C. S.; University of Florida; holling@zoo.ufl.edu. |
Panarchy focuses on ecological and social systems that change abruptly. Panarchy is the process by which they grow, adapt, transform, and, in the end, collapse. These stages occur at different scales. The back loop of such changes is a critical time and presents critical opportunities for experiment and learning. It is when uncertainties arise and when resilience is tested and established. We now see changes on a global scale that suggest that we are in such a back loop. This article assesses the possibility of using the ideas that are central to panarchy, developed on a regional scale, to help explain the changes that are being brought about on a global scale by the Internet and by climate, economic, and geopolitical changes. |
Tipo: Peer-Reviewed Reports |
Palavras-chave: Adaptive cycles; Change; Complex systems; Panarchy; Transformation. |
Ano: 2004 |
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Angeler, David G; Swedish University of Agricultural Sciences, Department of Aquatic Sciences and Assessment; david.angeler@slu.se; Allen, Craig R; U.S. Geological Survey, Nebraska Cooperative Fish and Wildlife Research Unit; School of Natural Resources, University of Nebraska, Lincoln; allencr@unl.edu; Johnson, Richard K; Swedish University of Agricultural Sciences, Department of Aquatic Sciences and Assessment; richard.johnson@slu.se. |
Understanding the social and ecological consequences of species invasions is complicated by nonlinearities in processes, and differences in process and structure as scale is changed. Here we use discontinuity analyses to investigate nonlinear patterns in the distribution of biomass of an invasive nuisance species that could indicate scale-specific organization. We analyze biomass patterns in the flagellate Gonyostomum semen (Raphidophyta) in 75 boreal lakes during an 11-year period (1997-2007). With simulations using a unimodal null model and cluster analysis, we identified regional groupings of lakes based on their biomass patterns. We evaluated the variability of membership of individual lakes in regional biomass groups. Temporal trends in local and... |
Tipo: Peer-Reviewed Insight |
Palavras-chave: Algal blooms; Alternative states; Biological invasions; Boreal lakes; Complex adaptive systems; Discontinuities; Landscape ecology; Panarchy; Resilience. |
Ano: 2012 |
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This paper uses northern Sweden as a case study of a multi-use social-ecological system, in which forestry and reindeer husbandry interact as different land use forms in the same area. We aim to describe the timeline of main events that have influenced resource use in northern Sweden, that is, to attempt a historical profiling of the system, and to discuss these trends in the system in terms of adaptive cycles and resilience. The study shows that key political decisions have created strong path dependencies and a situation in which forestry today is characterized by low flexibility and low resilience due to the highly optimized harvesting of tree resources. Since forestry is the overwhelmingly strongest actor, trends in forestry from the mid-19th century... |
Tipo: Peer-Reviewed Reports |
Palavras-chave: Adaptive cycles; Boreal forests; Conservation; Forestry; Historical profiling; Panarchy; Reindeer husbandry. |
Ano: 2010 |
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van Apeldoorn, Dirk F.; Land Dynamics Group, Wageningen University; Alterra, Wageningen UR; dirk.vanapeldoorn@wur.nl; Kok, Kasper; Land Dynamics Group, Wageningen University; Kasper.Kok@wur.nl; Sonneveld, Marthijn P.W.; Land Dynamics Group, Wageningen University ; marthijn.sonneveld@wur.nl; Veldkamp, Tom (A.); Land Dynamics Group, Wageningen University; Alterra, Wageningen UR; University of Twente, ITC faculty ; veldkamp@itc.nl. |
Resilience has been growing in importance as a perspective for governing social-ecological systems. The aim of this paper is first to analyze a well-studied human dominated agroecosystem using five existing key heuristics of the resilience perspective and second to discuss the consequences of using this resilience perspective for the future management of similar human dominated agroecosystems. The human dominated agroecosystem is located in the Dutch Northern Frisian Woodlands where cooperatives of dairy farmers have been attempting to organize a transition toward more viable and environmental friendly agrosystems. A mobilizing element in the cooperatives was the ability of some dairy farmers to obtain high herbage and milk yield production with limited... |
Tipo: Peer-Reviewed Insight |
Palavras-chave: Agroecosystems; Dairy farming; Panarchy; Northern Frisian Woodlands The Netherlands; Resilience; Soil organic matter. |
Ano: 2011 |
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Gotts, Nicholas M.; Macaulay Land Use Research Institute; n.gotts@macaulay.ac.uk. |
The paper compares two ambitious conceptual structures. The first is the understanding of social-ecological systems developed around the term "resilience," and more recently the term "panarchy," in the work of Holling, Gunderson, and others. The second is Wallerstein's "world-systems" approach to analyzing hierarchical relationships between societies within global capitalism as developed and applied across a broader historical range by Chase-Dunn and others. The two structures have important common features, notably their multiscale explanatory framework, links with ideas concerning complex systems, and interest in cyclical phenomena. They also have important differences. It is argued that there are gaps in both sets of ideas that the other might remedy.... |
Tipo: Peer-Reviewed Synthesis |
Palavras-chave: Adaptive cycle; Cross-scale interaction; Panarchy; Population; Resilience; Technology; World-systems.. |
Ano: 2007 |
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Angeler, David G; Swedish University of Agricultural Sciences, Department of Aquatic Sciences and Assessment; david.angeler@slu.se; Drakare, Stina; Swedish University of Agricultural Sciences, Department of Aquatic Sciences and Assessment ; stina.drakare@slu.se; Johnson, Richard K; Swedish University of Agricultural Sciences, Department of Aquatic Sciences and Assessment ; richard.johnson@slu.se. |
Revealing the adaptive responses of ecological, social, and economic systems to a transforming biosphere is crucial for understanding system resilience and preventing collapse. However, testing the theory that underpins complex adaptive system organization (e.g., panarchy theory) is challenging. We used multivariate time series modeling to identify scale-specific system organization and, by extension, apparent resilience mechanisms. We used a 20-year time series of invertebrates and phytoplankton from 26 Swedish lakes to test the proposition that a few key-structuring environmental variables at specific scales create discontinuities in community dynamics. Cross-scale structure was manifested in two independent species groups within both communities across... |
Tipo: Peer-Reviewed Reports |
Palavras-chave: Complex adaptive systems dynamics; Complex adaptive systems organization; Cross-scale structure; Discontinuities; Environmental variables; Invertebrates; Lakes; Panarchy; Phytoplankton; Resilience; Time series modeling. |
Ano: 2011 |
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Hahn, Thomas; Stockholm Resilience Centre, Stockholm University ; thomas.hahn@stockholmresilience.su.se. |
Governance networks play an increasingly important role in ecosystem management. The collaboration within these governance networks can be formalized or informal, top-down or bottom-up, and designed or self-organized. Informal self-organized governance networks may increase legitimacy if a variety of stakeholders are involved, but at the same time, accountability becomes blurred when decisions are taken. Basically, democratic accountability refers to ways in which citizens can control their government and the mechanisms for doing so. Scholars in ecosystem management are generally positive to policy/governance networks and emphasize its potential for enhancing social learning, adaptability, and resilience in social-ecological systems. Political scientists,... |
Tipo: Peer-Reviewed Reports |
Palavras-chave: Adaptive capacity; Adaptive cycle; Adaptive governance; Bridging organizations; Ecosystem service; Informal institutions; Leadership; Naturum; Panarchy; Path dependency. |
Ano: 2011 |
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Fraser, Evan D. G.; Leeds Institute for Environmental Science and Management; evan@env.leeds.ac.uk. |
Between 1845 and 1850, a potato blight triggered a famine that killed or displaced 25% of the Irish population. Aside from its historical and cultural significance, the Irish Potato Famine illustrates how social and economic forces can create vulnerability to environmental disturbance. Therefore, studying the famine contributes to the on-going academic debate on theories to combine social and environmental data. This paper explores the conditions leading to the Irish famine using the “Entitlement” framework of Sen (1980) and the “Panarchy” model proposed by Gunderson and Holling (2002). Entitlement theory allows us to better understand how community food security may become vulnerable over time as different social... |
Tipo: Peer-Reviewed Reports |
Palavras-chave: Entitlement theory; Famine; Food security; Ireland; Panarchy. |
Ano: 2003 |
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Zaccarelli, Nicola; Landscape Ecology Laboratory, University of Salento, Lecce, Italy; nicola.zaccarelli@unile.it; Petrosillo, Irene; Landscape Ecology Laboratory, University of Salento, Lecce, Italy; irene.petrosillo@unile.it; Zurlini, Giovanni; Landscape Ecology Laboratory, University of Salento, Lecce, Italy; giovanni.zurlini@unile.it; Riitters, Kurt Hans; U.S. Forest Service; kriitters@fs.fed.us. |
Land-use change is one of the major factors affecting global environmental change and represents a primary human effect on natural systems. Taking into account the scales and patterns of human land uses as source/sink disturbance systems, we describe a framework to characterize and interpret the spatial patterns of disturbances along a continuum of scales in a panarchy of nested jurisdictional social-ecological landscapes (SELs) like region, provinces, and counties. We detect and quantify those scales through the patterns of disturbance relative to land use/land cover exhibited on satellite imagery over a 4-yr period in the Apulia region, South Italy. By using moving windows to measure composition (amount) and spatial configuration (contagion) of... |
Tipo: Peer-Reviewed Reports |
Palavras-chave: Disturbance mismatches; Disturbance source/sink; Multiscale disturbance patterns; Panarchy; Social-ecological landscapes.. |
Ano: 2008 |
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Loring, Philip A; University of Alaska, Fairbanks; ftpal@uaf.edu. |
Resilience, adaptability, and transformability are all tightly linked to the notion of change, whether in respect to coping with, adapting to, or harnessing it. But in order to understand these forces of change, we first need to recognize its counterpart: identity. Identity of a social-ecological system is not merely a static set of quantifiable feedbacks or indicators, but a more qualitative characterization of what results from the overlap of the social and the ecological. To fully articulate these ideas, I turn to a unique and enduring phenomenon: the traveling circus. Through the many forms they have taken over the last 150 yr, circuses have changed significantly while sustaining a singular identity. As a successful and enduring social system, their... |
Tipo: Peer-Reviewed Synthesis |
Palavras-chave: Adaptive management; Circus; Panarchy; Resilience; Sustainability; Tribe; Tribalism.. |
Ano: 2007 |
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Registros recuperados: 18 | |
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