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Glossary definitions

The IPBES glossary terms definitions page provides definitions of terms used in IPBES assessments. Some definitions in this online glossary have been edited for consistency. Please refer to the specific assessment glossary for citations/authorities of definitions. 

We invite you to report any errors or omissions to [email protected].

Concept Definition Deliverable(s)
transformation

See land transformation.

Land degradation and restoration assessment
transformative change

Transformative change is defined in line with previous work of the Intergovernmental Science-Policy Platform on Biodiversity and Ecosystem Services approved by its Plenary, as a fundamental, system-wide reorganization across technological, economic and social factors, including paradigms, goals and values, needed for the conservation and sustainable use of biodiversity, good quality of life and sustainable development.

Sustainable use assessment
transformative change

A fundamental, system-wide reorganization across technological, economic and social factors, including paradigms, goals and values (IPBES, 2018; IPCC, 2018).

Global assessment (1st work programme)
transformative change

A system wide change that requires more than technological change through consideration of social and economic factors that, with technology, can bring about rapid change at scale.

IPBES-IPCC co-sponsored workshop on biodiversity and climate change
transformative change

The IPBES Global Assessment defines transformative change as ‘a fundamental, system-wide reorganisation across technological, economic and social factors, including paradigms, goals and values. We build on this definition through reference to the depth, breadth and dynamics of system reorganisation. Depth refers to change that goes beyond addressing the symptoms of environmental change or their proximate drivers, such as new technologies, incentive systems or protected areas, to include changes to underlying drivers, including consumption preferences, beliefs, ideologies and social inequalities (IPBES, 2019; Patterson et al., 2017; Scoones et al., 2015). Breadth refers to change across multiple spheres, with emerging consensus that transformation requires co-evolutionary change across different spheres of society, including personal, economic, political, institutional and technological ones (Harvey, 2010; O’Brien & Sygna, 2013; Pelling et al., 2015; Temper et al., 2018; Westley et al., 2011). Dynamics and processes refer to the emergent patterns of change across ‘depths’, ‘breadths’ and time that unfold as non-linear pathways. These may be characterised by ‘punctuated equilibrium’ in which more stable periods of incremental change are punctuated by bursts of change in which underlying structures are reorganised into new states (Patterson et al., 2017; Westley et al., 2011).

Values assessment
transformative change

a fundamental, system-wide reorganization across technological, economic, and social factors making sustainability the norm

Invasive alien species assessment
transformative governance

the set of formal and informal (public and private) rules, rulemaking systems and actor networks at all levels of human society that enable transformative change

Invasive alien species assessment
transhumance

A Form of pastoralism or nomadism organized around the migration of livestock between mountain pastures in warm seasons and lower altitudes the rest of the year. The seasonal migration may also occur between lower and upper latitudes. A traditional farming practice based on indigenous and local knowledge.

Americas assessment
transhumance

Form of pastoralism or nomadism organized around the migration of livestock between mountain pastures in warm seasons and lower altitudes the rest of the year.

Land degradation and restoration assessment
transhumance

Form of pastoralism or nomadism organized around the migration of livestock between mountain pastures in warm seasons and lower altitudes the rest of the year. The seasonal migration may also occur between lower and upper latitudes. A traditional farming practice based on indigenous and local knowledge.

Europe and Central Asia assessment
transhumance

The action or practice of moving livestock from one grazing ground to another in a seasonal cycle, typically to lowlands in winter and highlands in summer.

Asia-Pacific assessment
transitional pathway

A course of actions and strategies that aim to achieve the vision. They are closely related to policy or target-seeking scenarios.

Europe and Central Asia assessment
translocation

The human-mediated movement of living organisms from one area, with release in another.

Asia-Pacific assessment
tree-covered area

A land cover class that includes any geographic area dominated by natural tree plants with a cover of 10 percent or more. Areas planted with trees for afforestation purposes and forest plantations are included in this class.

Land degradation and restoration assessment
trees outside forest

All trees excluded from the definition of forest and other wooded lands. Trees outside the forest are located on other lands, mostly on farmlands and built-up areas, both in rural and urban areas.

Asia-Pacific assessment
trend

The general direction in which the structure or dynamics of a system tends to change, even if individual observations vary.

Sustainable use assessment, Scenarios and models assessment
trend

A general development or change in a situation or in the way that people are behaving.

Land degradation and restoration assessment
trend

temporal trends are directional long-term changes (i.e., decades to centuries) in numbers of species, populations or individuals introduced, or the spatial extent of colonization (Buckland et al., 2017). In this assessment report, trends are presented as indicators of species numbers (species richness) and rates of accumulation of species (e.g., first records of a species in a given location) over time.

Invasive alien species assessment
trophic cascades

The chain of knock-on extinctions observed or predicted to occur following the loss of one or a few species that play a critical role (e.g. as a pollinator) in ecosystem functioning.

Europe and Central Asia assessment, Asia-Pacific assessment, Sustainable use assessment
trophic level

The level in the food chain in which one group of organisms serves as a source of nutrition for another group of organisms (e.g. primary producers, primary or secondary consumers, decomposers).

Europe and Central Asia assessment, Americas assessment, Sustainable use assessment
trophic level

The level in the food chain in which one group of organisms serves as a source of nutrition for another group of organisms.

Global assessment (1st work programme), Land degradation and restoration assessment
trophic transfer

The transport of contaminants between two trophic levels (Suedel et al., 1994).

Global assessment (1st work programme)
trophy hunting

Trophy hunting is defined as the hunting for one or more individuals of a particular species with specific desired characteristics (such as large size or antlers) with the payment of a fee by a hunter for a hunting experience and trophy. The most common trophy is the mounted head with horns or antlers, although other parts of animal body ( skins, tails, teeth, heads) or even the whole bodies can be also appreciated as a trophy.

Sustainable use assessment
turbidity

Turbidity describes the cloudiness of water caused by suspended particles such as clay and silts, chemical precipitates such as manganese and iron, and organic particles such as plant debris and organisms.

Americas assessment
validation (of models)

Typically refers to checking model outputs for consistency with observations. However, since models cannot be validated in the formal sense of the term (i.e. proven to be true), some scientists prefer to use the words benchmarking or evaluation.

Scenarios and models assessment
validation (of models)

See models.

valuation

It is the process of documenting the existence of values, identifying when and where and by whom they are expressed, that in turn allows characterizing values. Valuation of nature can inform decision-making about numerous human-nature relationships; it can support decision processes about alternative projects or policies, inform the design of policy tools and instruments, for conservation and sustainable management of nature or to improve justice. Outside the formal policy space, valuation is also undertaken by academia, the private sector, non-governmental organizations and by indigenous and local communities (IPLC). IPLC undertake valuation not only to make decisions about nature, but also to assess their relationships with nature, to plan collectively, resolve conflicts, defend their territories, and as a means for strengthening and reciprocating their connections with nature.

Values assessment
valuation approach

Valuation approaches are higher level assumptions, ideas or beliefs that underpin methods. They translate key decisions on how a method is to be applied or how the information generated by methods is to be interpreted. For each approach there are often multiple accepted methods that adhere to the basic assumptions and ideas of the given approach. Valuation approaches can also be manifested as “traditions” or widely accepted and expected protocols for undertaking valuation. Valuation traditions are heavily informed and influenced by the cultural context and/or epistemological worldviews.

Values assessment
valuation method

Are the specific techniques and accepted formal procedures that are applied to gather and analyse information from nature and society in order to and understand or make explicit the state of nature and its importance to people a) quantity, quality and status of nature including its spatial and temporal variations; b) the relevance or importance of nature to people and societies; and c) the nature of human-nature and nature-human relations in terms of how people and societies embed and live out their values of nature (as actions, principles, worldviews or philosophies).

Values assessment
value (as importance)

A value can be the importance of something for itself or for others, now or in the future, close by or at a distance. This importance can be considered in three broad classes. 1. The importance that something has subjectively, and may be based on experience. 2. The importance that something has in meeting objective needs. 3. The intrinsic value of something.

Americas assessment, Asia-Pacific assessment, Europe and Central Asia assessment, Land degradation and restoration assessment
value (as importance)

A value can be the importance of something for itself or for others, now or in the future, close by or at a distance. This importance can be considered in three broad classes: The importance that something has subjectively, and may be based on experience. The importance that something has in meeting objective needs. The intrinsic value of something.

Africa assessment
value (as measure)

A value can be a measure. In the biophysical sciences, any quantified measure can be seen as a value.

Americas assessment, Europe and Central Asia assessment, Land degradation and restoration assessment, Asia-Pacific assessment, Africa assessment
value (as preference)

A value can be the preference someone has for something or for a particular state of the world. Preference involves the act of making comparisons, either explicitly or implicitly. Preference refers to the importance attributed to one entity relative to another one.

Africa assessment, Land degradation and restoration assessment, Asia-Pacific assessment, Americas assessment, Europe and Central Asia assessment
value (as principle)

A value can be a principle or core belief underpinning rules and moral judgments. Values as principles vary from one culture to another and also between individuals and groups.

Africa assessment, Land degradation and restoration assessment, Europe and Central Asia assessment, Asia-Pacific assessment, Americas assessment
value chains (that link production systems, markets and consumers)

a contact network, which provides opportunities for the transmission of contagious diseases within and between sectors. It follows that these chains (networks) can be understood and taken into account in planning risk management strategies for disease prevention and control” especially in relation with “risky parts of the value chain”

Invasive alien species assessment
value change

Value change refers to the modification of people’s values or of the prioritization of their values in particular contexts. Value change processes occur at different social scales, from large-scale cultural shifts (e.g. intergenerational shifts due to changing demography or changes to shared values) to small-scale personal shifts (e.g. values formation and change over an individual’s lifetime). Individual, social and social-ecological experiences and interactions influence value change; examples include formal and informal education, social practices, group conformation processes, personal experiences and shocks, and social-ecological events (e.g. natural disasters, pandemics).

Values assessment
value expression

Values can be expressed explicitly through language and implicitly through actions like choices, decisions made, everyday practices or rituals. Valuation methods are used to undertake explicit valuation. Methods and approaches to integrate and bridge values, provide knowledge about nature’s values as input to decision-making.

Values assessment
value formation

'Value formation' refers to how values develop in the first place. It can occur in individual-focused processes, trough socially-oriented processes or in social-ecological processes that do not separate humans and nature.

Values assessment
value indicator

Indicators of value are quantitative and qualitative measures of the importance of nature to people. Indicators used to express the value of nature can be biophysical, economic and socio-cultural.

Values assessment
value monism

Derives from a utilitarian perspective on human-nature relationships which privileges some values of nature over others (usually monetary values).

Values assessment
value pluralism

Value pluralism is the idea that there are several values which may be equally correct and fundamental, and yet in conflict with each other. It is the opposite of value monism. More broadly speaking, value pluralism may also refer to different people having different worldviews and hence different values. In addition, these plural values may be incommensurable (i.e. they do not share a single unit of measurement, a single metric, and that there is no objective way of comparing them or weighting them against each other).

Values assessment
value system

Sets of values according to which people, societies and organizations regulate their behaviour.

Scenarios and models assessment
value system

Set of values according to which people, societies and organizations regulate their behaviour. Value systems can be identified in both individuals and social groups.

Africa assessment, Europe and Central Asia assessment, Asia-Pacific assessment, Americas assessment, Land degradation and restoration assessment
value-articulating institution

Methods for valuation of nature and NCPs may be termed value articulating institutions since they are based on a set of rules concerning the valuing process: Participation: who participates; in what capacity; and how. What counts as data and what form it should take (prices, weights, arguments, physical measures etc.). The kind of data handling procedures involved: how data is produced; and how data are compared, weighed or aggregated.

Values assessment
values

Value systems: Set of values according to which people, societies and organizations regulate their behavior. Value systems can be identified in both individuals and social groups (Pascual et al., 2017). Value (as principle): A value can be a principle or core belief underpinning rules and moral judgments. Values as principles vary from one culture to another and also between individuals and groups (IPBES, 2015). Value (as preference): A value can be the preference someone has for something or for a particular state of the world. Preference involves the act of making comparisons, either explicitly or implicitly. Preference refers to the importance attributed to one entity relative to another one (IPBES, 2015). Value (as importance): A value can be the importance of something for itself or for others, now or in the future, close by or at a distance. This importance can be considered in three broad classes. 1. The importance that something has subjectively, and may be based on experience. 2. The importance that something has in meeting objective needs. 3. The intrinsic Please do not cite, quote or circulate 1733 value of something (IPBES, 2015). Value (as measure): A value can be a measure. In the biophysical sciences, any quantified measure can be seen as a value (IPBES, 2015). Non-anthropocentric value: A non-anthropocentric value is a value centered on something other than human beings. These values can be non-instrumental or instrumental to non-human ends (IPBES, 2015). Intrinsic value: This concept refers to inherent value, that is the value something has independent of any human experience or evaluation. Such a value is viewed as an inherent property of the entity and not ascribed or generated by external valuing agents (Pascual et al., 2017). Anthropocentric value: The value that something has for human beings and human purposes (Pascual et al., 2017). Instrumental value: The value attributed to something as a means to achieving a particular end (Pascual et al., 2017). Non-instrumental value: The value attributed to something as an end in itself, regardless of its utility for other ends. Relational value: The values that contribute to desirable relationships, such as those among people or societies, and between people and nature, as in “Living in harmony with nature” (IPBES, 2015). Integrated valuation: The process of collecting, synthesizing, and communicating knowledge about the ways in which people ascribe importance and meaning of Nature’s contributions to people, to facilitate deliberation and agreement for decision making and planning.

Sustainable use assessment
values of nature

The values of nature encompass the different layers of the values typology, including worldviews (and underpinning knowledge systems, languages and cultures), broad values, specific values, indicators and preferences.  In addition to instrumental values, the values of nature include reciprocal values and perspectives of nature where nature and people are not seen as separate, and where intrinsic values are acknowledged on a par with values of nature’s benefits to people.

Values assessment
values of nature

When referring to values of ‘nature’, we expand on the concept proposed by Díaz et al. (2015) by recognizing that individual and group understandings of nature are socially constructed, and that different social groups have different conceptualizations of the relationship between the human and non-human world. For IPBES, nature refers loosely to the non-human living world including the scientific categories of biodiversity, ecosystem structure and functioning, evolution, the biosphere, humankind’s shared evolutionary heritage and biocultural diversity. In addition, IPBES recognises other worldviews, including those from IPLCs, in which people recognize the diverse entities and elements of nature such as rivers, mountains, plants, animal species, existing within the planet denoted by categories like Mother Earth and systems of life . Among many IPLCs, nature is often viewed as inextricably linked to humans, not as a separate entity. By recognizing this wide understanding of the concept ‘nature’, we are then able to recognize the diversity of values that emerges within these different ways of seeing the world.

Values assessment
values

see Value systems, Value (as principles), Value (as preference), Value (as importance), Value (as measure), Non-anthropocentric value, Intrinsic value, Anthropocentric value, Instrumental value, Relational value, Integrated valuation.

Land degradation and restoration assessment
values

Those actions, processes, entities or objects that are worthy or important. Values can be of the following types: Anthropocentic value, Anthropogenic value, Bequest value, Biophysical value, Economic value, Existence value, Insurance value, Intrinsic value, Instrumental value, Non-instrumental value, Option value, Relational value, Socio-cultural value.

Scenarios and models assessment, Global assessment (1st work programme)
values

Value systems: Set of values according to which people, societies and organizations regulate their behaviour. Value systems can be identified in both individuals and social groups (Pascual et al., 2017). Value (as principle): A value can be a principle or core belief underpinning rules and moral judgments. Values as principles vary from one culture to another and also between individuals and groups (IPBES/4/INF/13).Value (as preference): A value can be the preference someone has for something or for a particular state of the world. Preference involves the act of making comparisons, either explicitly or implicitly. Preference refers to the importance attributed to one entity relative to another one (IPBES/4/INF/13). Value (as importance): A value can be the importance of something for itself or for others, now or in the future, close by or at a distance. This importance can be considered in three broad classes. 1. The importance that something has subjectively, and may be based on experience. 2. The importance that something has in meeting objective needs. 3. The intrinsic value of something (IPBES/4/INF/13).Value (as measure): A value can be a measure. In the biophysical sciences, any quantified measure can be seen as a value (IPBES/4/INF/13).Non-anthropocentric value: A non-anthropocentric value is a value centered on something other than human beings. These values can be non-instrumental or instrumental to non-human ends (IPBES/4/INF/13).Intrinsic value: This concept refers to inherent value, that is the value something has independent of any human experience or evaluation. Such a value is viewed as an inherent property of the entity and not ascribed or generated by external valuing agents (Pascual et al., 2017).Anthropocentric value: The value that something has for human beings and human purposes (Pascual et al., 2017).Instrumental value: The value attributed to something as a means to achieving a particular end (Pascual et al., 2017).Non-instrumental value: The value attributed to something as an end in itself, regardless of its utility for other ends.Relational value: The values that contribute to desirable relationships, such as those among people or societies, and between people and nature, as in Living in harmony with nature (IPBES/4/INF/13).Integrated valuation: The process of collecting, synthesizing, and communicating knowledge about the ways in which people ascribe importance and meaning of NCP to humans, to facilitate deliberation and agreement for decision making and planning (Pascual et al., 2017).