Functional Account of Agency

This note describes agency through what a participant does. A function is an activity that a participant can perform, an observer can test in a given setting, and other participants have to register. The word participant does not presume a self-contained individual. Every agent depends on relations with constituents, other agents, material conditions, and histories. Analysts draw boundaries around these relations for particular questions; the boundaries can overlap and change with scale. Whether agency can be attributed at any chosen scale remains an empirical question. Several accounts assign a participant a single level of agency, represented as a rung on a ladder or scale. A function profile records distinct functions instead, so one participant can show strong memory alongside weak anticipation. Three methods in other notes use this kind of profile: personas describe what a nonhuman stakeholder can do; capability lists state what a participant could do or be; and the checks of the agentic stair assess the strength of an agency claim for each party in a relation. See Agency for definitions, the evidence ladder and the five declarations. The Dimension column identifies the dimension of Three Axis Framework associated with each function.

Related notes:

Why a Functional Account

Four senses of agent, two motivations. In biology, the concept of an agent has at least four senses: minimal, intelligent, rational and intentional. Biologists have two motivations for using the concept. Some argue that organisms differ in kind from other biological entities, such as genes or groups; some theorists call that difference autonomy. Others treat organisms as if they were agents, as a heuristic for explaining evolved behaviour. Which of the four senses fits a given study depends on the biologist's motivation.1

A third motivation: design. Design adds a third motivation for using the concept. A brief must specify what a participant can do within a proposed arrangement, which activities the arrangement supports or blocks, and where the participant can refuse. Designers therefore need to identify the participant's functions. The capability approach makes a related distinction between a capability, the real opportunity to do or be something, and a functioning, the doing itself.2 This note applies that distinction to agency: a profile records what a participant could do, what current conditions allow, and what it does.

Nest boxes show why the distinction matters. Over three years in restored woodlands in south-eastern Australia, researchers monitored 150 nest boxes across four designs. Superb Parrots and Squirrel Gliders used none, even though two designs targeted those species. Starlings and feral honeybees used the boxes instead.3 This result cannot show whether the target species declined the boxes, were absent from the area, or were kept out by the occupants. A profile therefore needs to record presence before it can record refusal.

Functions are frame-relative. Any measurement of agency depends on a reference frame: its boundary, causal variables, criterion for a goal, and reference class for adaptation.4 Observers posit a Self, and systems posit one about themselves. Estimates of agency therefore vary with the observer and the scale of observation.5 A profile also records the scale of goals a system can pursue, its cognitive light cone.6 Each entry states the five declarations (boundary, variable, horizon, perspective, beneficiaries) set out under Declaring the Agent. The five questions for nonhuman leadership apply the same declarations in practice.7

Relational constitution does not settle scale. A cell, animal, institution, or forest can be analysed as a composite of dependencies and interactions. This does not make every relation or assemblage an agent. A claim about agency at a particular scale needs evidence for the functions, regulation, and consequences attributed at that scale. The Design Potential (Private) account treats collectivity as a condition of agents, not as a separate kind; Phase Space keeps forest-level agency open as an empirical question.

Agencies overlap, nest and depend on circumstance. A manic episode shows why an observer must declare a boundary before assigning functions. Evidence locates possible contributions at several levels.

  • Medication and gut pathways. Lithium, a chemical, halves the risk of a manic episode.8 A recent preprint reports that lithium acts mainly through the gut in mice and rats. It activates serotonin-producing cells in the gut lining, which signal to the brain through vagal and brainstem inputs. When researchers removed those cells or inputs, lithium's effects disappeared. The same activation occurred in human gut tissue.9
  • Gut bacteria and host signalling. Antibiotics can trigger mania. Parker and Russo identify disruption of the gut microbiota as the likeliest route.10 In one reported case, a person with bipolar disorder improved after receiving another person's gut microbiota.11 Bacteria act through the host's own cells. In zebrafish, compounds that gut bacteria make from tryptophan prompt sensory cells in the gut lining to release serotonin and stimulate the vagal nerve. The same compounds act on the human receptor.12 Behaviour also changes the gut microbiota, so the relation runs in both directions.13
  • Diet and symptoms. Diet may affect mental health through the microbiota, among other routes, although most studies so far used animals.14 In a trial of 59 people with irritable bowel syndrome and mild or moderate anxiety or depression, Mediterranean diet counselling improved depressive symptoms: 52% responded, compared with 20% in the control group. The microbiome changed no more than in the control group. Because the trial was unblinded, the diet, the counselling, or both may have produced the change.15
  • Brain, emotion and sleep. Damage to different brain sites connected to one network can produce mania.16 People with bipolar disorder who dwell more on positive emotions have had more manic episodes.17 Lost sleep can also trigger an episode.18
  • Implication for the boundary. Each finding locates part of the explanation in a different participant: a chemical, a gut-bacteria community, a brain network, a habit of thought, or a person's circumstances. These participants also nest within one another, as the lithium findings show. The boundary an observer chooses determines which participant counts as the agent of the episode, and each boundary suggests a different intervention.

Levels merge what profiles separate. Several accounts order agency into levels, while a function profile records distinct capacities. These schemes can serve as cross-checks without replacing the profile.

  • Organismic agency. One account distinguishes five levels: organismic, ontogenetic, directed, directed with extended flexibility, and guided by preconceived goals. It also counts as agentic the processes by which an organism builds and maintains its body, such as metabolism. Autonomy theory does not.19
  • Animal welfare. A four-level account distinguishes passive or reactive, action-driven, competence-building, and aspirational agency.20
  • Psychological agency. A comparative account distinguishes four feedback-control organisations: goal-directed agency in ancient vertebrates, intentional agency in mammals, rational agency in great apes, and socially normative agency in humans.21 On this account, a bacterium or C. elegans behaves without being a psychological agent.
  • Memory across substrates. An E. coli cell swims in runs broken by tumbles and steers towards food with a chemical memory held in modified signalling proteins. The protein determines how long this memory lasts, from seconds to more than five minutes.22 A separate account distinguishes five levels of biological organisation, from single cells to humans, and lists the cognitive characteristics of each.23
  • Why profiles help. The seven-rung evidence ladder in Agency is another scheme. Each scheme puts many functions on one axis. A participant with strong memory but weak anticipation then receives a single rank, obscuring a difference that matters to design. Mimosa pudica illustrates the split: plants that learned to stop folding their leaves when dropped still showed the learned response after a month without disturbance.24 Yet experiments that paired a light touch with an electric shock found no conditioned response, apart from one result that a second study failed to replicate. The evidence therefore supports strong memory, while anticipation remains weak or unproven.25
  • Consciousness profiles. Research on consciousness also rejects a single ranking. Five dimensions distinguish forms of consciousness, and "there is no single scale along which species can be ranked as more or less conscious". Each species instead has "its own distinctive consciousness profile".26 A function profile likewise records capacities separately. The schemes can then serve as cross-checks (see Coverage Across Schemes below).

The gap in applied fields. Social-ecological resilience research rarely measures agency. A review of 36 reviews published between 2010 and 2023 catalogued 312 resilience metrics, then examined how simulation models use them. Few metrics in either set included agency; only 5% of the metrics used in models did. The review counted human agency alone, "due to the challenges associated with defining and identifying non-human agency".27

A rapid review of 42 candidate terms retained ten terms for agents of change in social-ecological systems. The terms fall into two clusters: roles that facilitate information flows, and roles that instigate change. All ten describe human roles.28 The account of transformative capacity discussed below likewise describes that capacity as "harnessed via human agency".29

Conservation research shows a related gap. A review of 190 published evaluations of wildlife-management interventions, including translocation, reintroduction and fencing, found that interventions "insufficiently considered animal learning, decision-making, individuality, sociality, and relationships with humans".30 A functional account responds by describing the same functions for any participant, testing them, or recording them as unknown.

A standing objection. One critique argues that the agency perspective has produced no research programme and that no empirical evidence shows it advances experimental work. It holds that multiscale feedback mechanisms shaped by natural selection better explain the same phenomena.31 A function profile should therefore pair each function with a test that could fail, a record of the evidence, and a statement of who needs the result.

Four Questions Before Any Function

Four questions distinguish a participant's capacity to perform a function, its opportunity to do so, its actual activity, and its influence on others. First declare the boundary under study. It may overlap with other boundaries, and it need not correspond to one organism or one unitary individual. Each row of the function table below should answer all four questions for that declared case.

QuestionWhat it asksWhat it separatesExample
CapacityCould this participant perform the function at all, given its constitution?Possession from exerciseA bat can echolocate whether or not it is doing so now.
OpportunityDo present conditions allow the participant to exercise the function?Capability from functioning2A caged bird has the capacity to fly but lacks the opportunity.
ActivityIs the participant exercising the function here, now?Enacted from latentRoot exploration measured in one soil patch, this season: plants put more root growth into richer patches at the expense of roots in poorer soil.32
InfluenceDoes the exercise change anything that other participants have to register?Causal influence from mere activityA beaver dam alters the hydrology for everyone downstream: below 13 dams in a Devon enclosure, peak storm flows averaged 30% less than the flows entering the site.33

Three further separations follow.

  • Reachability from steerability. Whether a future is admissible, connected, affordable or durable is one question. Whether a participant can read, hold or steer toward it is another. Design Potential (Private) treats the two separately, so a function profile should say which of the two each function contributes to.
  • Agency from closure. Autonomy theory defines organisational closure as "the mutual dependence among the functional parts of a purposive organization".34 An animal's heart pumps blood that carries nutrients to cells and removes waste. The rest of the body, in turn, maintains the heart.35 Agency is the part of this organisation that governs the system's relations with its surroundings: behaviour that the organisation controls and that helps maintain it. A neutrophil pursuing a bacterium, a plant bending toward light, and a rabbit foraging count as actions in this sense.34
  • Closure is not sufficient. An ecosystem might realise closure without meeting the agency test.
  • Artefacts fall outside this account. Machines and other artefacts do not maintain themselves. Instead, they exist as "means to achieve the goals of a third party", such as the people who make or use them.34
  • Theoretical disagreement. Another account counts constitutive processes such as metabolism as agentic.19 The function table places constitutive functions in a separate tier to keep this disagreement visible.
  • Agency, cognition, moral standing and causal influence. These concepts come apart in practice. A river changes a valley without a goal, so it has causal influence without agency. A slime mould has no nervous system, yet it solves mazes. In one experiment, a single cell of Physarum polycephalum filled a maze with food at two exits, then withdrew from the dead ends into one tube along the route about 22% shorter than the alternative.36 A caged hen can suffer, which gives it moral standing, yet have almost no influence over decisions about the farm.2
  • Record the concepts separately. The Influence question above records causal influence; the interactive tier below records cognitive functions; moral standing needs its own field.

Functions

The table groups functions in three tiers. Constitutive functions sustain the participant through relations among its parts and surroundings. Interactive functions organise its exchanges with the surroundings. Relational functions explicitly involve other participants. The tiers distinguish functions, not kinds of agent: every function depends on relations, although those relations may not be the function under examination.

Most interactive functions come from the toolkit of basal cognition. Cognition, in this account, comprises the mechanisms an organism has "for becoming familiar with, valuing, and interacting productively with features of its environment [exploring, exploiting, evading] in order to meet existential needs".37 Researchers have described every capacity in the toolkit in prokaryotes. The interactive tier therefore does not restrict agency to animals.37

FunctionWhat to look forTestDimension
Constitutive
Energy captureIntake and conversion of energy that sustains the organisationStarve or shade the participant; does it reorganise its intake?Constituency
Material exchangeUptake, transformation and export of matterChange the inputs; trace the outputsConstituency
Maintenance and repairCorrection of damage; replacement of partsInjure; measure recovery toward the prior formConstituency
DevelopmentChange of form across the life course toward a target; parts aligned on one anatomy38Perturb; does the target anatomy still arrive?Constituency
Interactive
OrientingSelective attention to one state of affairs over othersPresent two stimuli; which one wins?Sense-making
Sensing and discriminationRecognition of salient features; determination that a state affords an opportunity or presents a challengeVary a feature; does the response change?Sense-making
Information seekingActivity whose outcome is information or skill for later use (competence-building)20Does the participant explore when no immediate gain follows?Sense-making
ValenceAssignment of value to a stimulus relative to current stateDoes the same stimulus attract when the participant is deprived and repel when it is sated?Valuing
Error detectionDetermination that a behaviour has succeeded or failed; the basis of biological normativity37Block the outcome; does the participant switch behaviour?Valuing
Motivation and goalsImplicit goals arising from existential conditions; a variable kept in rangePerturb-and-recover evidence for a controlled variableValuing
MemoryRetention of past information that recalibrates the sensorium, within the body or as traces in the surroundings (time-prints)39Erase the trace; does performance drop?Temporal scope
LearningChange of threshold or of kind of response from past experienceRepeat an exposure; does the response shift and persist?Sense-making
AnticipationPreparation from an early stimulus for what followsPresent the cue alone; does preparation follow?Temporal scope
Decision-makingCombination of information from several sources followed by action, with flexible selection among alternatives and history-sensitive modification37, 39Offer options under shifting conditions; does the choice track history as well as the present?Deciding
Problem solvingBehaviour selection under many, possibly conflicting, parameters and high uncertaintyAdd a novel obstacle; does the participant find a route?Sense-making
Action and environmental modificationChange of own structure or of spatial relations; construction that changes conditions for others40Remove the participant; does the modification persist or decay?Acting
RefusalAvoidance, non-occupancy, obstruction, withdrawalOffer the designed condition; does the participant decline it?30Refusing
Relational
CommunicationProductive interaction with other organisms by signalling, including the initiation of collective action37Block the signal; does coordination fail?Communicating
Coordination and alignmentParts or participants working toward one target; alignment makes many count as one38Isolate a subset; does it pursue the same target alone?Constituency
Membership testsAdmission or rejection of candidate members, as in immunity or kin recognitionIntroduce a candidate; record admission or rejection (cf. Agency)Constituency
Diversity and redundancySpare or varied ways to meet a disturbance; requisite variety41Remove one pathway; what fails? (cf. Redundancy)Capability
Collective decisionGroup-level choice that no member makes alone;42 cognition distributed across people with artefacts43Vary group size or composition; does accuracy change?Deciding
Novelty generationNew responses without new genes; new forms through plastic development40Introduce an unprecedented condition; does a new response appear?Acting
Influence over shared decisionsChange to decisions across participants with incompatible goalsDoes the outcome change when the participant is present?Influencing

The Basal Cognition Toolkit

The table below reproduces the toolkit in the original wording of Lyon and colleagues.37

CapacityFunction
Orienting responseAbility to selectively attend to a state of affairs to the exclusion of others. Biological basis of attention.
Sensing/perceptionThe capacity to sense and recognize (re-cognize) existentially salient features of the external and internal milieux.
DiscriminationThe ability to determine that a state of affairs affords an existential opportunity or presents a challenge requiring a change in internal state or relation to the external environment.
MemoryThe capacity to retain information about the immediate (and possibly distant) past, and to calibrate the sensorium to take account of this information, at a minimum via habituation or sensitization.
ValenceAn organism's capacity to assign a value (advantage/good, harm/bad) to a particular stimulus or the summary of information about its surroundings relative to its own current state. The 'building block' of affect.
Decision makingThe capacity to combine information from multiple sources and act, typically in furtherance of an implicit or explicit goal.
BehaviourAn organism's capacity to adapt to changes in its internal or external milieux by changing its own structure and function (internal) and/or its spatial and interactive relations (external).
Problem solvingBehaviour selection in circumstances with multiple (possibly conflicting) parameters and high degrees of uncertainty.
Error detectionThe capacity to determine whether a behaviour has succeeded or failed. Together with homeostasis/allostasis, this is the basis of biological normativity.
MotivationImplicit goals arising from existential conditions. Teleonomic striving. The inclination of a thing to continue to exist and enhance itself.
LearningThe capacity to adapt behaviour to salient stimuli according to past experience by altering the threshold for or the nature of a response.
AnticipationThe capacity to predict what is likely to happen next based on an early stimulus.
CommunicationThe capacity to interact productively with other organisms via forms of signalling, notably (but not limited to) conspecifics, including initiating collective action, which may or may not include an explicit means of differentiating 'like me' (us) from 'not-like me' (them).

Table 1 of the source, "Toolkit of basal cognitive capacities", re-typed.37

Decisions That Leave Traces

Physarum polycephalum on a dish. The network of tubes and slime trails records past decisions and constrains the next ones.39

  • Definition. Decision-making can be a continual process that leaves time-prints: durable changes to a body or its surroundings that constrain later choices.39
  • Criteria. A decision-maker accumulates persistent historical constraints, selects actions flexibly, and shows history-sensitive change. Rigid stimulus-response systems fail the flexibility criterion.39
  • Control. Control can be heterarchical, as in slime moulds, plants, and flocks. A brain is therefore not required.39
  • Tests. Erase a slime mould's trails, remove or chemically mask root exudates from explored soil, or track starling flock trajectories before and after a predator introduction. Then test for a loss of history-sensitivity.39
  • Design application. These tests also apply to design because a built structure can become a time-print that a participant reads. Burrowing owls illustrate the point: when researchers replaced old nest material in artificial burrows with fresh soil, owls became less likely to reuse them. The odds of reuse were 3.5 times higher for burrows left unchanged.44

Coverage Across Schemes

For each function family, the table shows whether each scheme lists it. "Yes" means the scheme lists the function; "partly" means the scheme implies it or includes it under another item; "no" means the scheme does not mention it. A dagger (†) marks a cell that rests on a single passage in the source.

Function familyBasal cognition toolkit37Five levels of organismic agency19Four behavioural levels20Animal agency in conservation30Transformative capacity29ICON levels of biological organisation23Dimension
Energy, material exchange, maintenancenoyes (organismic)nonononoConstituency
Development toward a targetnoyes (ontogenetic)nononoyes (adaptive morphogenesis)Constituency
Sensing, discrimination, orientingyespartly (directed)partly (reactive)partly (cognition)†nopartly (valence-sensitive states, awareness)Sense-making
Valence, error detection, motivationyespartly (extended flexibility)†yes (affective functioning)partly (sentience)noyes (valence-sensitive states, error correction, affective states)Valuing
Memoryyesnopartly (competence-building, aspirational)partly (sentience)†yes (social and ecological memory)yes (learning and memory)Temporal scope
Learningyespartly (preconceived goals)yes (competence-building)yespartly (iterative learning, human only)yes (every level)Sense-making
Anticipation, planningyesyes (preconceived goals)yes (aspirational)partly (sentience)†partly (iterative learning, human only)partly (goal-directed behaviour across longer time horizons)Temporal scope
Decision-makingyespartly (extended flexibility)partly (choice between levels)yespartly (human only)noDeciding
Action, environmental modificationyes (behaviour)yesyes (action-driven)yespartly (human only)yes (behaviourally expressed regulation, integrated behaviour)Acting
Refusalnononopartly (unanticipated outcomes)†nonoRefusing
Communication, socialityyespartly (preconceived goals, Homo only)†partly (competence-building: play, communication)yes (sociality, cultures)partly (stakeholder communication, human only)partly (language, humans only)Communicating
Diversity and redundancynononopartly (individuality)yesnoCapability
Noveltynonopartly (novel behaviours)†partly (adapting to new contexts)yesnoActing
Influence over shared decisionsnononopartly (relationships with humans, represented interests)partly (power, human only)noInfluencing

The refusal cell for conservation draws on outcomes in the source's Table 1. Elephants grew used to deterrents and returned; other animals tried to return to their home range. The paper itself does not discuss refusal.

Four Behavioural Levels of Animal Agency

LevelType of overt behaviourAffective functioningAwareness
Passive/reactive agencyNo overt behaviour except in direct reaction to external stimuliHomeostatic and sensory affectsAnoetic self: experiencing without knowing (sentience awareness)
Action-driven agencyActively behaving to achieve current outcomesEmotional action systemsAnoetic self, as above
Competence-building agencyActively behaving to build skills and acquire information for later useLearning-related emotionsNoetic self: knowing (competence awareness)
Aspirational agencyActively behaving in the pursuit of planned and reflected goalsEmotional rumination and regulation, affectively guided planning, intentions to actAutonoetic self: recalling, planning, intending (autobiographical and introspective awareness)

Re-typed from Table 1 of the source, which develops the levels "for the particular case of mammalian biology and psychology". This version omits the column on brain structures.20

Fields for Every Function

Each function in a profile has the same fields. The right-hand column lists the sources for individual fields.

FieldWhat to recordSources
DeclarationsBoundary, variable, horizon, perspective, beneficiaries and costsAgency; the five questions7
Conditions of exerciseWhat has to be true of the setting for the function to run: season, life stage, density, presence of othersCapability from functioning2
Evidence statePresent, absent, unknown because unstudied, or unknowable with current instruments; plus the evidence type (observation, perturbation, model, testimony)Knowledge shortfalls;45 the call to fill light-cone diagrams with behavioural data6
Control and constraintWhich variable the function regulates, which constraints it accumulates (time-prints), what it costsTime-prints;39 Energy
Participation pathwayWhich tread of the Stair the function supports, in which direction (A toward B)Agentic Stair
ConsequencesWho gains, who pays, what changes for others when the function runs or fails"Resilience of what, to what?" and "for whom?"29
Refusal and revisionEvidence that the participant declined or avoided; the date of the last revision of the entryResistance

Unknowns Are Structured

Knowledge about any participant is uneven, so an "unknown" evidence state needs a reason. Seven shortfalls affect large-scale knowledge of biodiversity.45 The authors call "informed ignorance" "a powerful research tool".45 The Raunkiæran shortfall matters especially here: measured traits "are often the most simple, rather than the most functional".45

Taxonomic bias also shapes biodiversity records. Such records cluster around birds and other preferred groups, so an "absent" entry for an insect or fungus may describe the record rather than the participant.46 See Ignorance, Limitations and Bias.

ShortfallAspect of biodiversityDefinition
LinneanSpeciesMost of the species on Earth have not been described and cataloged; extended to extinct species
WallaceanGeographic distributionKnowledge about the geographic distribution of most species is incomplete at all scales
PrestonianPopulationsData on species abundance and population dynamics in space and time are often scarce
DarwinianEvolutionLack of knowledge about the tree of life and the evolution of species and their traits
RaunkiæranFunctional traits and ecological functionsLack of knowledge about species' traits and their ecological functions
HutchinsonianAbiotic tolerancesLack of knowledge about the responses and tolerances of species to abiotic conditions
EltonianEcological interactionsLack of knowledge on species' interactions and these interactions' effects on individual survival and fitness

Re-typed and shortened from Table 1 of the source.45

Each shortfall has a counterpart in a function profile. A participant may be unrecorded (Linnean), unlocated (Wallacean), uncounted (Prestonian), of unknown lineage (Darwinian), of unknown function (Raunkiæran), of unknown tolerance (Hutchinsonian), or of unknown relations (Eltonian). The function table is a Raunkiæran instrument; the relational tier is an Eltonian one.

Collective Scale: Transformative Capacity

Social-ecological systems can change through functions distributed across people, organisms, materials, and ecological processes. Whether to attribute agency to the system at that scale remains a separate empirical question. Michaels and colleagues describe transformative capacity as "the potential for a system to be intentionally shifted to a new, self-organizing, desired state".29 Their account foregrounds human agency in intentional transformation, while the ecological carriers below contribute memory, diversity, and novelty through their relations.

Adaptive capacity lets a system adapt while it remains in its current basin of attraction. Transformative capacity erodes the resilience of the current state, either by making its basin shallower or by lowering the resistance threshold between the current and a desired state.29

  • Three attributes. Transformative capacity depends on memory, diversity and novelty. Memory has social carriers as well as ecological ones, the latter including "seed banks, migrations, rare species, ecological disturbances, and land use legacy effects".29 Lodgepole pine is one such carrier: its serotinous cones store seed on the tree, so a stand killed by bark beetles can still reseed after a later fire, provided the fire comes while the seed is still viable.47 Diversity covers functional and response diversity. Novelty consists of options that the current state lacks. Each attribute corresponds to a function in the relational tier above, performed by a collective.
  • Windows of opportunity. Transformation may occur when a window opens for people to use a loss of resilience in the current state, or to erode that resilience.29 In a function profile, a window is an entry under conditions of exercise: the same function counts for more when the current state is weak. In Alaskan black spruce forest, a severe fire that burns off the thick organic soil layer opens such a window: deciduous trees establish on the exposed mineral soil, and the forest can switch to a deciduous state that persists through new plant–soil–microbial feedbacks.47
  • For whom. Resilience researchers ask "resilience of what, to what?" and "for whom?"29 The consequences field of a function profile records the answer to the same question.

Some carriers, sources and mechanisms of memory, diversity and novelty, the three core attributes of transformative capacity in a social-ecological system.29

Cf. Transformation, Memory, Diversity, Innovation and Phase Space.

Mapping the Field Without Missing Lenses

Human knowledge of agency is uneven, so a map of the field has to say how it searched, where it stopped, and what it could not see. The procedure below combines reporting standards for meta-narrative reviews with a worked example from the same journal that published the transformative-capacity account.

Record how each source knows. A disciplinary label does not specify a source's method or epistemology. For each item, record:

  • the activity or relation under study;
  • the evidence used, who interprets it, and which instruments or practices they use;
  • the spatial and temporal scales;
  • the boundaries and exclusions.

Sources may combine methods or support incompatible interpretations. Keep those differences visible rather than forcing them into one hierarchy of evidence.

  • Trace traditions, then compare them. A meta-narrative review follows how separate research traditions conceptualise a topic. It searches by snowballing from seminal sources and by database query, then reports where traditions agree, differ, or do not engage with one another.48 The traditions table below is one product of this step.
  • Build a corpus, then read to saturation. One review extracted 1,577 articles from Scopus, clustered them by shared references, and characterised the clusters by distinctive vocabulary. Researchers then coded articles until new ones added no new statements. The coding yielded ten constructs of limits, arranged on two axes: a social paradigm (the view of the science-policy interface) and an epistemic paradigm (the value of knowledge). The review describes its corpus as Western-centred and English-only. It therefore maps influential international literature while leaving other parts of the field uncharted.49
  • Map roles, then ask who is missing. Ten terms for agents of change fall into two clusters: facilitators of information flows and instigators of change. The review tabulates the roles against scale and strategy.28 The same matrix can map any participant: rows for strategies such as reframing or mobilising resources, columns for candidate agents, and cells for evidence. Empty cells show where researchers have looked only at people.
  • Audit the metrics. Hirata Sanches and colleagues show how to check what a field measures: they classified every metric, then asked which categories include agency or diversity. In their figure, reproduced below, compound indicators at the individual level include agency most often.27 A researcher who runs the same audit on design or conservation literature can see where the functions above go unmeasured.
  • Fill in the cones with behavioural data. The empirical task is to fill light-cone diagrams of goal scale "with behavioral data from real organisms".6 Each function row with the evidence state "present" is one datum for such a diagram.
  • Perturb, then look for history. Erase a trace, mask an exudate, disturb a flock: the perturbation tests above show whether a function leaves a record that the participant later reads.39
  • Stop with a record. Stop when a new source adds no new function or field, as the saturation criterion requires.49 Keep two lists with the map: the lenses tried that found nothing, and the items excluded with the reason. An empty search for a term means that the term is absent from the sources searched; it says nothing about the participant.

A cartography of ten constructs of limits across a social paradigm (horizontal) and an epistemic paradigm (vertical).49

Two clusters of agents of change in social-ecological systems. All ten terms describe roles that people play.28

Agent types against scale and strategy. The matrix form transfers to other participants.28

Six categories of resilience metric, with bars for how often each includes agency or diversity.27

Traditions and Epistemic Entry Points

The rows below are overlapping entry points, not mutually exclusive disciplines or a complete taxonomy. The middle column summarises which activities, relations, and scales each conversation makes legible; it does not assign a single definition of agency to that field.

The map uses humans for the species and people for situated communities or political collectives, including Indigenous peoples; the terms are not interchangeable. Publics shape whose activity becomes visible in collective decisions. In turn, representation concerns whose interests enter those decisions, who speaks for whom, and what authority representatives hold. Representation alone does not establish agency in the represented entity.

Tradition or conversationActivities, relations, and scales made legibleEntry points
Basal cognition, diverse intelligenceA toolkit of capacities present from prokaryotes up; competence measured as navigation of a problem space, across substrates; cognition as a spectrum across all living systems37, 5, 38, 23
Autonomy theory, enactivismThe interactive dimension of a self-maintaining organisation; adaptivity as the source of norms34, 50, 51, 52
Evolutionary and developmental biologyAgency, plasticity, and coordinated activity across biological levels; organismal individuality and its boundaries remain contested19, 38, 40
Philosophy of biologyFour senses of agent with two motivations; accounts range from agency as a property of organisms to critiques that question its explanatory value1, 19, 31
Ecological psychologySelf-initiated action by an animal within a mutual animal–environment relation; plants excluded, the organism–environment system excluded53, 54
Comparative psychology, animal welfareNested feedback-control systems from reflex to volition; four psychological types; four behavioural levels21, 20, 55
Social-ecological systemsHuman agents of change; transformative capacity; agency rarely measured29, 28, 27, 49
Conservation, wildlife managementWild animals as participants whose learning, sociality or individuality shape outcomes30
Collective behaviour and group cognitionCoordination and decision-making emerge through interactions among group members42
Distributed cognition, actor-network theoryDecisions and cognition distributed across people, artefacts, institutions, and networks of human and nonhuman actors43, 56
Cybernetics, controlRegulation needs variety to match the disturbances it faces41
Reinforcement learningAgency as a frame-dependent measurement4
Justice, capabilitiesRecognition, participation, capabilities as what justice owes; capability from functioning2, 57
More-than-human design, participationNonhuman participants as leaders or decision-makers; five questions for nonhuman leadership; participatory research with other species7, 58, 59, 60, 61, 62
Indigenous place-thoughtPlace and agency are understood through relations among humans and other-than-human beings in a specific knowledge tradition63
Bawaka Country relational knowledgeA place-specific account of co-becoming among Yolŋu people, Country, and other beings64
Potawatomi plant knowledgePlants participate in reciprocal relations that include teaching, learning, and responsibility65
Critical food studiesMicrobes, livestock and food itself shape what people make, eat and become; cheesemakers treat microbes as partners, regulators treat some of the same microbes as hazards, and dairy cows act in ways that milking robots fail to anticipate66, 67, 68, 69
Multispecies ethnography, anthropologyAnimals, plants, fungi and microbes are selves that interpret signs and help make shared worlds, and they count without proof of consciousness, intention or ethics; Kohn limits agency to living selves, against new materialism70, 71, 72
New materialismAny material body, living or non-living, can act: edibles, commodities, storms and metals impede human designs and follow tendencies of their own; agency arises within relations68, 73, 74
Rights of nature, legal personhoodA river or ecosystem becomes a legal person with rights, duties and liabilities and can sue and be sued; appointed human guardians act and speak for its health75, 76
Environmental historyThe behaviour and lives of particular organisms help shape historical events and the worlds those organisms inhabit; in the chapter "Can the mosquito speak?", Mitchell follows the Anopheles gambiae mosquitoes that carried malaria into wartime Egypt in 194277, 78
Ecological humanities, ecofeminist philosophyAgency as active intentionality that behaviour shows, with no test of consciousness; land, earth others and the systems that support human life act and create79
Sentience studiesAgency in a basic sense, action guided by internal representations of goals, is widespread and easier to show than sentience; the interests of sentient beings take priority over those of merely agential ones; consciousness varies along five dimensions, and each species has its own profile across them80, 81, 82, 26
Organisation studiesNature's physical power over organisations is a reason to give it stakeholder status, as the "primordial stakeholder", with humans voicing its interests; sociomaterial accounts treat organising as an entanglement of the social and the material; recent work treats organising as multispecies, with agency distributed across species83, 84, 85, 86
Ecological economics, ecosystem servicesLiving beings and ecological processes count as natural capital whose services yield benefits only with human-made capital; in its generalising perspective, IPBES acknowledges agency only in people; relational values concern human relationships with nature87, 88, 89, 90, 91
Plant behaviour and signallingPlants sense cues, recall past sensations, judge and decide, then respond through rapid, reversible plasticity; purposeful, goal-directed plasticity counts as agency, with survival as the goal92, 93, 94
Political theory of animalsAnimals act politically when they express a subjective good, communicate and help shape the terms of shared life; domesticated animals do so through dependent agency with trusted humans; critics require shared intentionality95, 96, 97
Animal geographiesAnimals show agency when they transgress or resist the places that humans assign them and make "beastly places" of their own98, 99, 100
Niche construction, ecosystem engineeringOrganisms modify habitats and resource flows for other species through their structures or activities, and change the selection pressures their descendants face101, 102
Human–animal studies, animal historyAnimals communicate, help, deceive and resist; such acts amount to a partial, local and limited agency, judged case by case; historians warn against reducing nonhuman agency to resistance103, 104
Sociology of agencyAgency as a temporally embedded process of social engagement, informed by the past through habit and oriented to the future through imagined alternatives and to the present through practical judgement; the account concerns human actors105
BiosemioticsSemiotic agency, the capacity to interpret signs and act on them, belongs to all living organisms, at levels of semiotic competence that evolutionary transitions separate106
Process ontologyPersistence and identity described through interacting processes across different timescales; objects and processes treated as complementary accounts107
Ecological network scienceInteraction types and strengths shape network structure, ecosystem function, and stability; engineering changes those relations108, 109
Feminist standpoint epistemology, situated knowledgeKnowledge is partial and situated; the observer's position and practices shape what becomes legible110
Epistemic justicePower shapes whose testimony or know-how receives credibility, and who can acquire useful knowledge and skills111, 112
Critical animal studiesAnimal oppression, abolitionist and activist politics, and the colonial histories or exclusions that shape animal advocacy113
More-than-human political ecologyPolitical communities, ecological processes, and more-than-human practices shape environmental change and distribute responsibilities across specific places114, 115, 116
Vegan studiesVeganism as cultural, ethical, and political practice, including food systems, Indigenous perspectives, and colonial histories117, 118, 119
Publics, democracy, and political representationPublics can form around contested multispecies interventions; representation asks how animals' interests enter shared decisions, who speaks for whom, and what accountability follows120, 121
Governance and leadershipRules distribute decision rights; institutions structure participation and accountability. Leadership describes relational influence, including coordination, with or without formal office7, 58, 75, 76, 84, 95, 96, 97

This map remains provisional because its sources cover places and communities unevenly. The entries distinguish particular traditions, peoples, and places where the sources permit, while treating no tradition or discipline as internally uniform.

Open Questions

  • Which functions in the constitutive tier belong in an agency profile at all, given the disagreement between autonomy theory and the five-level account?34, 19
  • What evidence warrants attributing a function to a composite participant at a particular scale when its activity depends on relations among constituents?29
  • Can the perturbation tests for time-prints run in a built setting without harming the participant?39
  • Which evidence types count for "present" in a species with few records, given taxonomic bias?46
  • How far does the separation of capability from functioning transfer from sentient animals to plants, fungi or collectives?2
  • Does a function profile reduce the anthropocentric defaults listed in Bias, or does it relocate them into the choice of functions?

Notes


Footnotes

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