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Universal adaptive strategy theory (UAST) is an evolutionary theory developed by J. Philip Grime in collaboration with Simon Pierce describing the general limits to ecology and evolution based on the trade-off that organisms face when the resources they gain from the environment are allocated between either growth, maintenance or regeneration ...
John Philip Grime FRS [1] (30 April 1935 – 19 April 2021) [2] was an ecologist and emeritus professor at the University of Sheffield. [3] He is best known for the universal adaptive strategy theory (UAST) and the twin filter model of community assembly with Simon Pierce, eco-evolutionary dynamics, the unimodal relationship between species richness and site productivity ("humped-back model ...
However, in the early 1980s David Tilman introduced the R* theory, which focused on resource partitioning as strategies to deal with competition. [10] More recently, additional strategies have been introduced. In 1998, the L-H-S strategy scheme was introduced as an alternative to Grime's C-S-R scheme. [7]
The law of effect, or Thorndike's law, is a psychology principle advanced by Edward Thorndike in 1898 on the matter of behavioral conditioning (not then formulated as such) which states that "responses that produce a satisfying effect in a particular situation become more likely to occur again in that situation, and responses that produce a ...
Traill (1978–2006) suggests that this Ashby-hierarchy probably coincides with Piaget's well-known theory of developmental stages. [This work also discusses Ashby's 1000-switch example; see §C1.2]. [This work also discusses Ashby's 1000-switch example; see §C1.2].
Robert Ladd Thorndike [1] (September 22, 1910 – September 21, 1990) was an American psychometrician and educational psychologist who made significant contributions to the analysis of reliability, the interpretation of error, cognitive ability, and the design and analysis of comparative surveys of achievement test performance of students in ...
Operant conditioning originated with Edward Thorndike, whose law of effect theorised that behaviors arise as a result of consequences as satisfying or discomforting. In the 20th century, operant conditioning was studied by behavioral psychologists, who believed that much of mind and behaviour is explained through environmental conditioning.
[5] [6] [7] Thorndike believed that variability in intelligence could have a biological basis and suggested that this could have important implications for achievement and pedagogy. For example, he postulated that greater male variation could mean "eminence and leadership of the world's affairs of whatever sort will inevitably belong oftener to ...