Ecology as the Field of Co-Instantiation: Completing the Arc from Genes to Meaning

If we reframe genes not as replicators but as structured potentials, and view development as the process of biological instantiation, then evolution becomes not the survival of replicators, but the historical transformation of what can be instantiated. Throughout this reconceptualisation, we have moved from the level of genes to cells, to organisms, and to developmental systems. To complete the arc, we must now turn to the ecological systems in which these potentials are always embedded, and through which they are actualised.

Ecology as Instantiating Context

In traditional evolutionary narratives, the environment plays the role of selector: it rewards or punishes organisms based on how well their inherited traits suit current conditions. But if we adopt a relational ontology, the ecological environment is not just a backdrop for selection. It is the dynamic and co-evolving field of instantiation for biological potential.

This means:

• The environment does not merely select from a fixed pool of variations.

• It co-participates in shaping what can be varied, developed, and sustained.

• Ecological systems are not external filters but semi-structured potentials that enter into relation with genetic, cellular, and organismic potentials.

From this perspective, an ecological system is not a static stage but a co-instantiating partner. It is:

• Material: composed of energy flows, chemical gradients, food webs, and climate systems.

• Historical: shaped by previous instantiations, including those of other organisms.

• Potential-laden: offering affordances and constraints for future instantiation.

Development in Ecological Context

Developmental systems theory already emphasises that development is not pre-programmed but context-sensitive. Ecology is the name we give to that broader context in which development unfolds:

• Genes are expressed differently depending on environmental signals.

• Phenotypes emerge through interactions with both physical and social surroundings.

• Behaviour, morphology, and life strategies are co-shaped by conditions that are themselves shaped by other organisms.

This makes the ecological system a participant in instantiation at every level. An ecological niche is not a container; it is an interface of mutual shaping. A beaver does not simply inhabit a stream—it co-instantiates a wetland system through dam building. Coral reefs emerge not just from the genes of coral polyps, but from their interactions with water temperature, symbiotic algae, nutrient flows, and other species.

Evolution as Ecological Reconfiguration

When ecological systems are seen as co-instantiating fields, evolution becomes not just a shift in gene frequencies, but a reconfiguration of the possible. Ecological changes—whether slow or abrupt—reshape what can be biologically instantiated. For example:

• Climate change alters developmental thresholds and reproductive timing.

• Species invasions open or close off relational pathways.

• Habitat loss collapses the relational scaffolds that sustain some phenotypes.

So evolution is not just adaptation to a fixed environment. It is the co-adaptive transformation of organisms and environments—what some theorists call niche construction, and what we might now call the mutual shaping of potential across levels of biological and ecological organisation.

From Meaning to Matter, and Back Again

Throughout our exploration of memes, genes, and ecology, we have used the model of potential and instantiation to bridge meaning and biology. The logic that holds across them is neither metaphorical nor mechanical. It is ontological:

• Meaning is semiotic potential instantiated in context.

• Development is biological potential instantiated in context.

• Ecology is the relational context through which both are co-instantiated.

We end where we began: not with discrete units that replicate, but with structured potentials that are actualised in relation. The world is not made of things that persist. It is made of potentials that unfold through relation, in the strata of meaning and matter, mind and life, individual and collective, organism and ecology.

And this is what it means to think ecologically: to see not just systems, but instantiating fields—spaces of unfolding, negotiation, and co-emergence. Ecology is not just the context in which life happens. It is the relational grammar of life itself.