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| Registros recuperados: 13 | |
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| Washington-Allen, Robert A; Department of Ecosystem Science and Management, Texas A&M University; washington-allen@tamu.edu; Briske, David D.; Department of Ecosystem Science and Management, Texas A&M University; dbriske@tamu.edu; Shugart, Herman H.; W.W. Corcoran Professor of Environmental Sciences & Director, Center for Regional Environmental Studies, Department of Environmental Sciences, University of Virginia; hhs@virginia.edu; Salo, Lucinda F.; Sage Ecosystem Science; csalo11@hotmail.com. |
| The contributions to this special feature focus on several conceptual and operational applications for understanding non-linear behavior of complex systems with various ecological criteria at unique levels of organization. The organizing theme of the feature emphasizes alternative stable states or regimes and intervening thresholds that possess great relevance to ecology and natural resource management. The authors within this special feature address the conceptual models of catastrophe theory, self-organization, cross-scale interactions and time-scale calculus; develop operational definitions and procedures for understanding the occurrence of dynamic regimes or multiple stable states and thresholds; suggest diagnostics tools for detection of states and... |
| Tipo: Peer-Reviewed article |
Palavras-chave: Catastrophe theory; Complex systems science; Dynamical systems analysis; Ecological resilience; Non-equilibrium ecology; Self-organization; Thresholds; Time-scale calculus. |
| Ano: 2010 |
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| Trosper, Ronald L; Northern Arizona University; Ronald.Trosper@nau.edu. |
| If, like other ecosystems, the variable and dynamic ecosystems of the Pacific Northwest exhibited cycles and unpredictable behavior, particularly when humans were present, the indigenous societies of that region had to have been resilient in order to persist for such a long time. They persisted for two millennia prior to contact with people from the “old world.” The Resilience Alliance (2002) proposes that social and ecological resilience requires three abilities: the ability to buffer, the ability to self-organize, and the ability to learn. This paper suggests that the characteristics of the potlatch system among Indians on the Northwest Coast, namely property rights, environmental ethics, rules of earning and holding titles, public... |
| Tipo: Peer-Reviewed Reports |
Palavras-chave: Northwest Coast; Adaptive management; Buffering disturbance; Environmental ethics; Indigenous societies; Property rights; Reciprocity; Resilience; Self-organization. |
| Ano: 2003 |
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| Murphy, Shane; Herrero, A. |
| As an alternative to spectral methods, stochastic self-similar slip can be produced through a composite source model by placing a power-law scaling size-frequency distribution of circular slip dislocations on a fault surface. However these model do not accurately account for observed surface rupture behaviour. We propose a modification to the composite source model that corrects this issue. The advantage of this technique is that it accommodates the use of fractal slip distributions on non-planar fault surfaces. However to mimic a surface rupture using this technique, releasing the boundary condition at the top of the fault, we observed a systematic decrease in slip at shallow depths. We propose a new strategy whereby the surface is treated like a... |
| Tipo: Text |
Palavras-chave: Numerical approximations and analysis; Self-organization; Theoretical seismology. |
| Ano: 2020 |
URL: https://archimer.ifremer.fr/doc/00607/71883/70580.pdf |
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| Herrero, A.; Murphy, Shane. |
| We propose a strategy to place a self similar slip distribution on a complex fault surface that is represented by an unstructured mesh. This is possible by applying a strategy based on the composite source model where a hierarchical set of asperities, each with its own slip function which is dependent on the distance from the asperity centre. Central to this technique is the efficient, accurate computation of distance between two points on the fault surface. This is known as the geodetic distance problem. We propose a method to compute the distance across complex non-planar surfaces based on a corollary of the Huygens’ principle. The difference between this method compared to others sample-based algorithms which precede it, is the use of a curved front at... |
| Tipo: Text |
Palavras-chave: Numerical approximations and analysis; Self-organization; Theoretical seismology. |
| Ano: 2018 |
URL: http://archimer.ifremer.fr/doc/00433/54432/55781.pdf |
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| Wang, Xing jin; Gao, Bing. |
| The paper analyzes the basic situation for the formation of innovative rural organizations with the form of self-organization; revels the features of self-organization, including the four aspects of openness of rural organization, innovation of rural organization is far away from equilibrium, the non-linear response mechanism of rural organization innovation and the random rise and fall of rural organization innovation. The evolution mechanism of rural organization innovation is reveled according to the growth stage, the ideal stage, the decline and the fall stage. The paper probes into the basic restriction mechanism of the self-organization evaluation of rural organization from three aspects, including target recognition, path dependence and knowledge... |
| Tipo: Journal Article |
Palavras-chave: Self-organization; Rural organization innovation; Evolution; Innovation mechanism; China; Agribusiness. |
| Ano: 2011 |
URL: http://purl.umn.edu/113503 |
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| MARQUET,PABLO A. |
| In this essay I point out to two processes that can potentially complement the classical view of evolution by natural selection as outlined by Darwin, which captures only part of the processes driving adaptive evolution. This classical view should be complemented with sources of order generated within the biological system itself in response to its own structure and dynamics (i.e. self-organization) and by considering the existence of a fundamental circularity in the interaction between the organism and its environment, such that the action of the organisms modify their selective environment thereby affecting their own evolution. The formalization and inclusión of these two processes (and their interaction) represent major challenges and opportunities for... |
| Tipo: Journal article |
Palavras-chave: Darwin; Natural selection; Self-organization. |
| Ano: 2009 |
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-078X2009000400004 |
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| MALDONADO,CARLOS; SQUEO,FRANCISCO A; IBACACHE,ERIC. |
| ABSTRACT Environmental-induced phenotypic variation in plants is often considered to be a functional response that maximizes fitness in heterogeneous environments. Lycopersicon chilense, a tomato species endemic to Atacama Desert, shows altitudinal phenotypics variations in their natural environments, which could be due to different soil water availabilities. It is hypothesized that (a) seeds coming from populations of different environments, cultivated in the same environment, will have similar phenotypes, if populations are not genetically differentiated, and that (b) the different populations subjected to two drought levels should vary their phenotypic constitution with respect to the control groups. The responses of twenty phenotypic traits to... |
| Tipo: Journal article |
Palavras-chave: Phenotypic response; Water stress; Physiological adjustment; Self-organization; Wild tomato. |
| Ano: 2003 |
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-078X2003000100012 |
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| Registros recuperados: 13 | |
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