The article proposes to further develop the ideas of the Extended Evolutionary Synthesis by including into evolutionary research an analysis of phenomena that occur above the organismal level. We demonstrate that the current Extended Synthesis is focused more on individual traits (genetically or non-genetically inherited) and less on community system traits (synergetic/organizational traits) that characterize transgenerational biological, ecological, social, and cultural systems. In this regard, we will consider various communities that are made up of interacting populations, and for which the individual members can belong to the same or to different species. Examples of communities include biofilms, ant colonies, symbiotic associations resulting in holobiont formation, and human societies. The proposed model of evolution at the level of communities revises classic theorizing on the major transitions in evolution by analyzing the interplay between community/social traits and individual traits, and how this brings forth ideas of top-down regulations of bottom-up evolutionary processes (collaboration of downward and upward causation). The work demonstrates that such interplay also includes reticulate interactions and reticulate causation. In this regard, we exemplify how community systems provide various nongenetic 'scaffoldings', 'constraints', and 'affordances' for individual and sociocultural evolutionary development. Such research complements prevailing models that focus on the vertical transmission of heritable information, from parent to offspring, with research that instead focusses on horizontal, oblique and even reverse information transmission, going from offspring to parent. We call this reversed information transfer the 'offspring effect' to contrast it from the 'parental effect'. We argue that the proposed approach to inheritance is effective for modelling cumulative and distributed developmental process and for explaining the biological origins and evolution of language.
The main purpose of this article is to consider the significance of different types of memory and non-genetic ('inclusive', 'extended', 'soft') inheritance and different biosemiotic systems for the origin and evolution of language. It presents language and memory as distributed (objectified, external), heteronomous and system-determined processes implemented in biological and social domains. The article emphasises that language and other sign systems are both (1) ecological and inductive systems that were caused by and always correlate with the environment and (2) deductive systems that are inherited by and depend on the internal development of organisms, individuals, and societies. The article also claims that the origin, reoccurrence and evolution of naturally-emerging sign systems presuppose (1) their retention and accumulation in physical, biological, individual, and social types of memory and (2) reinforcement and maintenance by conventional and deliberate social regulation and accumulation. All of this allows language and other sign systems to be situation-relevant and to be transmitted through generations without their constant reinvention. The novelty of the proposed theory of language origin and evolution is in interdisciplinary integration of biosemiotic studies, systems (ecological, holistic, integrative) approaches to language and studies of inheritance systems presented by 'Extended evolutionary synthesis'.
This paper investigates how reticulate evolution contributes to a better understanding of human sociocultural evolution in general, and community formation in particular. Reticulate evolution is evolution as it occurs by means of symbiosis, symbiogenesis, lateral gene transfer, infective heredity, and hybridization. From these mechanisms and processes, we mainly zoom in on symbiosis and we investigate how it underlies the rise of (1) human, plant, animal, and machine interactions typical of agriculture, animal husbandry, farming, and industrialization;(2) diet-microbiome relationships; and (3) host-virome and other pathogen interactions that underlie human health and disease. We demonstrate that reticulate evolution necessitates an understanding of behavioral and cultural evolution at a community level, where reticulate causal processes underlie the rise of synergistic organizational traits.
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