The concept of ‘semiotic fitting’ is what we provide as a model for the description and analysis of the diversity dynamics and nativeness in semiotic systems. One of its sources is the concept of ‘ecological fitting’ which was introduced by Daniel Janzen as the mechanism for the explanation of diversity in tropical ecosystems and which has been shown to work widely over the communities of various types. As different from the neo-Darwinian concept of fitness that describes reproductive success, ‘fitting’ describes (...) functional relations and aboutness. Diversity of a semiotic system is strongly dependent on the mutual fitting of agents of which the semiotic system consists. The focus on semiotic fitting means that, in the analysis of diversity, we pay particular attention to decision making, functional plasticity, recognition windows, the depth of interpretation of the agents, and the categories responsible for the structure of the semiotic system. The concept of semiotic fitting has an early analogue in Jakob von Uexküll’s concept of ‘Einpassung’. The close concepts of ‘semiotic fitness’, introduced by Jesper Hoffmeyer and by Stéphanie Walsh Matthews, ‘semiotic selection’, introduced by Timo Maran and Karel Kleisner, and ‘semiotic niche’, introduced by Hoffmeyer, provide different versions of the same model. If community is constructing itself on the basis of fitting, then nativeness of the community is a product of fitting, not vice versa. Nativeness is a feature that deepens in the course of community succession. The concept of ‘semiotic fitting’ demonstrates the possibility to analyse the role of both indigenous and alien species or other agents in a community on the basis of a single model. (shrink)

The term “time-plan” is introduced in the article to sum up the diversity of temporal processes described by Jakob von Uexküll (1864–1944) in the frameworkof the general Planmässigkeit of nature. Although Uexküll hardly had any connections with his contemporary philosophies of time, the theme of the subjectivetimes and timing of the organisms forms an essential part of his umwelt theory. As an alternative to the dominance of evolutionary time in biological discussions, Uexküll took perceptual and developmental times of organisms as (...) his natural scientific priorities. While discussing the characteristics of the latter, Uexküll departs from an epigenetic position. Discussion about perceptual time entails detecting the primary units of time (moments) as well as how the succession of moments results in the perception of movement. The last part of the article will explicate the significance of the “time plan” concept for biophilosophical discussions. It is suggested that the bioethical question rising from Uexküll’s works may take the following form: do other biological subjects besides humans have a right to their own timing? (shrink)

On the basis of a comparative analysis of the biosemiotic work of Jakob von Uexküll and of various theories on biological holism, this article takes a look at the question: what is the status of a semiotic approach in respect to a holistic one? The period from 1920 to 1940 was the peak-time of holistic theories, despite the fact that agreement on a unified and accepted set of holistic ideas was never reached. A variety of holisms, dependent on the cultural (...) and disciplinary contexts, is sketched here from the works of Jan Smuts, Adolf Meyer-Abich, John Scott Haldane, Kurt Goldstein, Alfred North Whitehead and Wolfgang Köhler. In contrast with his contemporary holists, who used the model of an organism as a unifying explanatory tool for all levels of reality, Jakob von Uexküll confined himself to disciplinary organicism by extending the borders of the definition of “organism” without any intention to surpass the borders of biology itself. The comparison reveals also a significant difference in the perspectives of Uexküll and his contemporary holists, a difference between a view from a subjective centre in contrast with an all-encompassing structural view. Uexküll’s theories are fairly near to J. S. Haldane’s interpretation of an organism as a coordinative centre, but even here their models do not coincide. Although biosemiotics and holistic biology have different theoretical starting points and research-goals, it is possible nonetheless to place them under one and the same doctrinal roof. (shrink)