Theory of alternative stable states
Webb1 mars 2024 · There is growing interest in the application of alternative stable state (ASS) theory to explain major vegetation patterns of the world. Here, we introduce the theory as applied to the puzzle of nonforested (open) biomes growing in climates that are warm and wet enough to support forests (alternative biome states, ABSs). WebbThere is growing interest in the application of alternative stable state (ASS) theory to explain major vegetation patterns of the world. Here, we introduce the theory as applied …
Theory of alternative stable states
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Webb9 mars 2024 · Although mechanisms leading to alternative stable states are much studied, little is known about how such ecosystems could have emerged in the first place. We … Although alternative stable state theory is still in its infancy, empirical evidence has been collected from a variety of biomes : The Sahara region, once vegetated, suddenly collapsed into a desert about 5,000 to 6,000 years ago due to climate change... In the northeastern United States alternative ... Visa mer In ecology, the theory of alternative stable states (sometimes termed alternate stable states or alternative stable equilibria) predicts that ecosystems can exist under multiple "states" (sets of unique biotic and abiotic conditions). … Visa mer Ecosystems can shift from one state to another via a significant perturbation directly to state variables. State variables are quantities that change quickly (in ecologically-relevant time scales) in response to feedbacks from the system (i.e., they are … Visa mer Hysteresis is an important concept in alternative stable state theory. In this ecological context, hysteresis refers to the existence of different stable states under the same variables … Visa mer Most work on alternative stable states has been theoretical, using mathematical models and simulations to test ecological hypotheses. Other … Visa mer Alternative stable state theory was first proposed by Richard Lewontin (1969), but other early key authors include Holling (1973), Sutherland (1974), May (1977), and Scheffer et al. (2001). In the broadest sense, alternative stable state theory proposes that a … Visa mer It is also possible to cause state shifts in another context, by indirectly affecting state variables. This is known as the ecosystem perspective. This perspective requires a change in environmental parameters that affect the behavior of state variables. For … Visa mer By their very nature, basins of attraction display resilience. Ecosystems are resistant to state shifts – they will only undergo shifts under substantial perturbations – but some states are more resilient than others. In the ball-and-cup model, a valley with … Visa mer
Webb26 juni 2024 · This book presents the theory behind multiple stable states with an emphasis on testable predictions and links between theory and experiments. The book also contains extensive discussions on common misconceptions, misuse of the terminology, and caveats of both theoretical and experimental approaches focusing on … WebbA state is a centralized political organization that imposes and enforces rules over a population within a territory.There is no undisputed definition of a state. One widely used definition comes from the German sociologist Max Weber: a "state" is a polity that maintains a monopoly on the legitimate use of violence, although other definitions are …
Webb10 juni 2024 · The concept of alternate stable states is important in ecological theory and models, but the application and implementation of these models have the potential to make significant future advances in the field of patterned landscapes. WebbAlternative stable states – One of several possible outcomes of dynamic modeling of complex systems, i.e., mathematical modeling of dynamical systems over time. Other …
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how far is sacramento ca from san franciscoWebb10 apr. 2024 · The reason for the inefficacy of such reforms is simple: They would not “liberate us from capitalism,” and “the housing crisis stems from an economic system in … how far is sacramento from novatoWebb31 mars 2004 · During the last 20 years there have been several attempts to test the theory of alternative stable states using marine systems. The results have been mixed, and there have been conflicting interpretations of the outcomes. In an attempt to resolve some of the problems, the theory and evidence for alternative stable states are reviewed. how far is safety harbor from tampa flWebb30 juni 2016 · Recent work has indicated that tropical forest and savanna can be alternative stable states under a range of climatic conditions. However, dynamical systems theory suggests that in case of strong spatial interactions between patches of forest and savanna, a boundary between both states is only possible at conditions in which forest … high caliber shotgunWebbalternative stable states had been noted long before (Lewontin, 1969; Holling, 1973; May, 1977), but shallow lakes are often considered the first well documented example. This … how far is sacramento from davis caWebb1 sep. 2003 · The idea that alternative stable states may exist in communities has been a recurring theme in ecology since the late 1960s, and is now experiencing a resurgence of … high caliber sniperWebbThe approximate range for alternative stable states can be shown by plotting macrophyte coverage versus total phosphorus (Figure 2B). Apart from an unexplained increase of total P between 1998 and 2001, the cycles suggest two critical P values: one for shifting to a vegetation dominated state at approximately 0.02 mg L"1 and one for loss of how far is sa from dallas