This is the second article in a series of review articles addressing biosemiotic terminology. The biosemiotic glossary project is designed to integrate views of members within the biosemiotic community based on a standard survey and related publications. The methodology section describes the format of the survey conducted July–August 2014 in preparation of the current review and targeted on Jakob von Uexküll’s term ‘Umwelt’. Next, we summarize denotation, synonyms and antonyms, with special emphasis on the denotation of this term in current (...) biosemiotic usage. The survey findings include ratings of eight citations defining or making use of the term Umwelt. We provide a summary of respondents’ own definitions and suggested term usage. Further sections address etymology, relevant contexts of use, and related terms in English and other languages. A section on the notion’s Uexküllian meaning and later biosemiotic meaning is followed by attempt at synthesis and conclusion. We conclude that the Umwelt is a centerpiece phenomenon, a phenomenon that other phenomena in the living realm are organized around. To sum up Uexküll’s view, we can characterize an Umwelt as the subjective world of an organism, enveloping a perceptual world and an effector world, which is always part of the organism itself and a key component of nature, which is held together by functional cycles connecting different Umwelten. In order to pay respect to Uexküll’s work, we must move from notion to model, from mention of Uexküll’s Umwelt term to actual application of it. (shrink)

The current article is the first in a series of review articles addressing biosemiotic terminology. The biosemiotic glossary project is inclusive and designed to integrate views of a representative group of members within the biosemiotic community based on a standard survey and related publications. The methodology section describes the format of the survey conducted in November–December 2013 in preparation of the current review and targeted on the terms ‘agent’ and ‘agency’. Next, I summarize denotation, synonyms and antonyms, with special emphasis (...) on the denotation of these terms in current biosemiotic usage. The survey findings include ratings of nine citations defining or making use of the two terms. I provide a summary of respondents’ own definitions and suggested term usage. Further sections address etymology, connotations, and related terms in English and other languages. A section on the notions’ mainstream meaning vs. their meaning in biosemiotics is followed by attempt at synthesis and conclusions. Although there is currently no consensus in the biosemiotic community on what constitutes a semiotic agent, i.e., an agent in the context of semiosis, most respondents agree that core attributes of an agent include goal-directedness, self-governed activity, processing of semiosis and choice of action, with these features being vital for the functioning of the living system in question. I agree that these four features are constitutive of biosemiotic agents, and stipulate that biosemiotic agents fall within three major categories, namely 1) sub-organismic biosemiotic agents, 2) organismic biosemiotic agents and 3) super-organismic biosemiotic agents. (shrink)

Name der Zeitschrift: Semiotica Jahrgang: 2015 Heft: 207 Seiten: 127-137.

Jakob von Uexküll’s umwelt theory opens new perspectives for understanding animal extinction. The umwelt is interpreted here as a sum of structural correspondences between an animal’s subjective experience, ecosystem, physiology, and behaviour. The global environmental crisis disturbs these meaning-connections. From the umwelt perspective, we may describe extinction as umwelt collapse: The disintegration of an animal’s umwelt resulting from the cumulative errors in semiotic processes that mediate an organism and ecosystem. The loss of umwelt-ecosystem integration disturbs “ecological memory,” which provides the (...) ecosystem with adaptive modelling and self-design capacities. Making a distinction between core and mediated umwelts, and describing different types of umwelt collapse, are suitable methods for more detailed analysis. The concept of umwelt collapse enables the reinterpretation of extinction, from an internal perspective, as a semiotic breakdown. Such an approach may help us map scenarios of animal extinction, and may lead to successful compensation strategies in adapting to environmental change. (shrink)