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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)
food sovereignty (paradigm)

The right to define own policies and strategies for the sustainable production, distribution and consumption of food that guarantee the right to food for the entire population, on the basis of small and medium-sized production, respecting their own cultures and the diversity of peasant, fishing and indigenous forms of agricultural production, marketing and management of rural areas, in which women play a fundamental role.

Land degradation and restoration assessment
food web

An important ecological concept representing feeding relationships within a community and implying the transfer of food energy from its source in plants through herbivores to carnivores; normally, food webs consist of a number of food chains meshed together.

Sustainable use assessment, Global assessment (1st work programme)
forecast

see prediction.

Scenarios and models assessment
forest degradation

A reduction in the capacity of a forest to produce ecosystem services such as carbon storage and wood products as a result of anthropogenic and environmental changes.

Global assessment (1st work programme), Africa assessment, Americas assessment, Asia-Pacific assessment
forest garden

A range of systems for the management of forest resources that are intermediate on a continuum between pure extraction and plantation management, and ranging from wild forests modified for increased production of selected products (e.g. fruit and nut trees) to anthropogenic forests with a high density of valuable species within a relatively diverse and complex structure.

Global assessment (1st work programme)
forest law enforcement, governance and trade

A reduction of illegal logging by strengthening sustainable and legal forest management, improving governance and promoting trade in legally produced timber.

Global assessment (1st work programme)
forest management

Forest management is defined as a practice about managing, using, conserving and repairing forest, woodlands and associated resources. Objectives and goals are fulfilled by implementing and regulating tree management and harvesting practices stipulated in forest management plans.

Sustainable use assessment
forest transition

A shift, usually assessed at the national scale, from net forest loss to net forest gain, whether through natural recovery or planted forests.

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

A minimum area of land of 0.05-1.0 hectares with tree crown cover (or equivalent stocking level) of more than 10-30 per cent with trees with the potential to reach a minimum height of 2-5 metres at maturity in situ. A forest may consist either of closed forest formations where trees of various stories and undergrowth cover a high proportion of the ground or open forest.

Global assessment (1st work programme), Africa assessment
forest

A minimum area of land of 0.05 - 1.0 hectares with tree crown cover (or equivalent stocking level) of more than 10?30 per cent with trees with the potential to reach a minimum height of 2?5 m at maturity in situ. A forest may consist either of closed fore.

Global assessment (1st work programme)
forest

A minimum area of land of 0.05 - 1.0 hectares with tree crown cover (or equivalent stocking level) of more than 10-30 per cent with trees with the potential to reach a minimum height of 2-5 m at maturity in situ. A forest may consist either of closed forest formations where trees of various stories and undergrowth cover a high proportion of the ground or open forest.

Pollination assessment, Asia-Pacific assessment, Land degradation and restoration assessment, Americas assessment
formal institution

Include law and policies e.g. regulations and directives, and fiscal, agricultural or planning policies, to name just a few examples. These are typically based on legal instruments, treaties and customary laws. Informal institutions in turn include social norms and rules, such as those related to collective action.

Europe and Central Asia assessment
fossil fuel

Fuels such as petroleum derived for fossil oil sources.

Land degradation and restoration assessment
fossil fuel

Fossil fuels are derived from the remains of ancient plant and animal life: coal, oil and natural gas. In common dialogue, the term fossil fuel also includes hydrocarbon-containing natural resources that are not derived from animal or plant sources.

Sustainable use assessment, Global assessment (1st work programme)
fragmentation

see Habitat fragmentation.

fragmentation

The process or state of breaking or being broken into fragments. Often used in reference to habitats.

Asia-Pacific assessment
free, prior and informed consent

Free implies that Indigenous Peoples and Local Communities are not pressured, intimidated, manipulated or unduly influenced and that their consent is given, without coercion; prior implies seeking consent or approval sufficiently in advance of any authorization to access traditional knowledge respecting the customary decision-making processes in accordance with national legislation and time requirements of Indigenous Peoples and Local Communities; informed implies that information is provided that covers relevant aspects, such as: the intended purpose of the access; its duration and scope; a preliminary assessment of the likely economic, social, cultural and environmental impacts, including potential risks; personnel likely to be involved in the execution of the access; procedures the access may entail and benefit-sharing arrangements; consent or approval is the agreement of the Indigenous Peoples and Local Communities who are holders of traditional knowledge or the competent authorities of those Indigenous Peoples and Local Communities, as appropriate, to grant access to their traditional knowledge to a potential user and includes the right not to grant consent or approval.

Global assessment (1st work programme), Sustainable use assessment
functional diversity

The range, actual values, relative abundance and distribution of functional trait attributes in a given community.

Europe and Central Asia assessment
functional diversity

Value, range and relative abundance of functional traits in a given ecosystem.

Global assessment (1st work programme), Land degradation and restoration assessment
functional diversity

The range, actual values and relative abundance of functional trait attributes in a given community.

functional extinction

See 'Exctinction'.

Global assessment (1st work programme)
functional group

A collection of organisms with similar suites of co-occurring functional attributes. Groups are traditionally associated with similar responses to external factors and/ or effects on ecosystem processes. A functional group is often referred to as ‘guild.

Sustainable use assessment, Global assessment (1st work programme)
functional redundancy

The occurrence in the same ecosystem of species filling similar roles, which results in a sort of insurance in the ecosystem, with one species able to replace a similar species from the same functional niche.

Global assessment (1st work programme)
functional trait

A feature of an organism, which has demonstrable links to the organism's function (Lavorel et al. 1997). As such, a functional trait determines the organism's response to pressures (Response trait), and/or its effects on ecosystem processes orservices(Effect trait).Functional traits are considered as reflecting adaptations to variation in the physical and biotic environment and trade-offs (ecophysiological and/or evolutionary) among different functions within an organism. In plants, functional traits include morphological, ecophysiological, biochemical and regeneration traits, including demographic traits(at population level). In animals, these traits are combined with lifehistory and behavioural traits (e.g. guilds, organisms that use similar resources/ habitats).

Asia-Pacific assessment
functional trait

Any feature of an organism, expressed in the phenotype and measurable at the individual level, which has demonstrable links to the organism's function. As such, a functional trait determines the organism's response to external abiotic or biotic factors (response trait), and/or its effects on ecosystem properties or benefits or detriments derived from such properties (effect trait). In plants, functional traits include morphological, ecophysiological, biochemical and regeneration traits. In animals, these traits include e.g. body size, litter size, age of sexual maturity, nesting habitat, time of activity.

Europe and Central Asia assessment, Global assessment (1st work programme)
functional trait

Any feature of an organism, expressed in the phenotype and measurable at the individual level, which has demonstrable links to the organism's function (Lavorel et al. 1997; Violle et al. 2007). As such, a functional trait determines the organism's response to external abiotic or biotic factors (Response trait), and/or its effects on ecosystem properties or benefits or detriments derived from such properties (Effect trait). In plants, functional traits include morphological, ecophysiological, biochemical and regeneration traits. In animals, these traits include e.g. body size, litter size, age of sexual maturity, nesting habitat, time of activity.

Americas assessment, Pollination assessment, Global assessment (1st work programme)
functional trait

Any feature of an organism, expressed in the phenotype and measurable at the individual level, which has demonstrable links to the organism’s function. As such, a functional trait determines the organism’s response to external abiotic or biotic factors (Response trait), and/or its effects on ecosystem properties or benefits or detriments derived from such properties (Effect trait). In plants, functional traits include morphological, ecophysiological, biochemical and regeneration traits. In animals, these traits include e.g., body size, litter size, age of sexual maturity, nesting habitat, time of activity.

Global assessment (1st work programme)
fungicide

A substance that kills or inhibits the growth and development of fungi. Fungicides may be synthetic chemicals, natural chemicals, or biological agents.

Pollination assessment
macroecology

A subfield of ecology that deals with the study of relationships between organisms and their environment at large spatial scales, and involves characterizing and explaining statistical patterns of abundance, distribution and diversity.

Global assessment (1st work programme)
mainstreaming biodiversity

Mainstreaming means integrating actions related to conservation of biodiversity into strategies relating to production sectors.

Asia-Pacific assessment
mainstreaming biodiversity

Mainstreaming, in the context of biodiversity, means integrating actions or policies related to biodiversity into broader development processes or policies such as those aimed at poverty reduction, or tackling climate change.

Americas assessment, Africa assessment, Europe and Central Asia assessment
maladaptation

A trait that is, or has become, more harmful than helpful, in contrast with an adaptation, which is more helpful than harmful (Barnett & O’Neill, 2010).

Global assessment (1st work programme)
malnutrition

Malnutrition refers to deficiencies, excesses or imbalances in a person’s intake of energy and/or nutrients. The term malnutrition covers 2 broad groups of conditions. One is ‘undernutrition’—which includes stunting (low height for age), wasting (low weight for height), underweight (low weight for age) and micronutrient deficiencies or insufficiencies (a lack of important vitamins and minerals). The other is overweight, obesity and diet-related noncommunicable diseases (such as heart disease, stroke, diabetes and cancer).

Global assessment (1st work programme), Sustainable use assessment
managed pollinator

A kind of pollinator that is maintained by human beings through husbandry (e.g. some honey bees, some leafcutting and orchard bees, some bumble bees). The terms can be broadened to include wild pollinators (q.v.) that flourish by human encouragement.

Pollination assessment
management

for the purpose of the assessment, any action taken to address the threats, risks, distribution, abundance and impacts of an invasive alien species within a defined geographic area (Hulme, 2006; Pyšek et al., 2020). Management includes prevention, preparedness, eradication, containment, and control

Invasive alien species assessment
management of wild species

The management of wild species is the management process influencing interactions among and between wild species, its habitats and humans to achieve predefined impacts valued by stakeholders. It attempts to balance the needs of wild species and the preservation of the ecosystems they inhabit with the needs of humans, using the best available sources of knowledge.

Sustainable use assessment
mangrove

Group of trees and shrubs that live in the coastal intertidal zone. Mangrove forests only grow at tropical and subtropical latitudes near the equator because they cannot withstand freezing temperatures.

Europe and Central Asia assessment, Americas assessment, Land degradation and restoration assessment, Global assessment (1st work programme), Sustainable use assessment, Asia-Pacific assessment
marginal lands

Land having limitations which in aggregate are severe for sustained application of a given use. On these lands, options are limited for diversification without the use of inputs; inappropriate management of lands may cause irreversible degradation.

Sustainable use assessment
marginal lands

Land having limitations which in aggregate are severe for sustained application of a given use. On these lands, options are limited for diversification without the use of inputs; inappropriate management of lands may cause irreversible degradation (CGIAR,.

marginal lands

Lands less suited for crop or livestock production.

Land degradation and restoration assessment
marginalization

Marginalization refers to the set of processes through which some individuals and groups face systematic disadvantages in their interactions with dominant social, political and economic institutions. The disadvantages arise from class status, social group identity (kinship, ethnicity, caste and race), political affiliation, gender, age and disability.

Global assessment (1st work programme)
marginalization

Marginalisation is a complex and multidimensional concept, which simply cannot be seen as a state of being ( a condition of low income or food insecurity) but needs to be considered a process over time with several inter-related elements interacting with social and economic conditions, political standing, and environmental health. A full understanding of the term marginalisation needs to be based on the view that the best judge of poverty and marginalisation are the people experiencing it.

Sustainable use assessment
marginalized community

Marginalized communities, peoples or populations are groups and communities that experience discrimination and exclusion (social, political and economic) because of unequal power relationships across economic, political, social and cultural dimensions (National Collaborating Centre for Determinants of Health.

Sustainable use assessment
mariculture

A branch of aquaculture involving the culture of organisms in a medium or environment which may be completely marine (sea), or sea water mixed to various degrees with fresh water, including brackishwater areas (SIVALINGAM, 1981).

Sustainable use assessment, Global assessment (1st work programme)
market failures

Refers to situations whereby the market fails to give efficient allocation of resources, due to non-fulfilment of free and competitive market structure.

Africa assessment
market forces

Refer to economic factors affecting the price of, demand for, and availability of a commodity.

Africa assessment
mass balance (analysis)

Comparison between input and output mass of materials to solve for losses such as oxidation.

Land degradation and restoration assessment
maximum sustainable yield

The maximum sustainable yield (MSY) for a given fish stock means the highest possible annual catch that can be sustained over time, by keeping the stock at the level producing maximum growth. The MSY refers to a hypothetical equilibrium state between the exploited population and the fishing activity.

Americas assessment
mean species abundance (species abundance)

An indicator of naturalness or biodiversity intactness. It is defined as the mean abundance of original species relative to their abundance in undisturbed ecosystems. An MSA (Mean Species Abundance) of 0% means a completely destructed ecosystem, with no original species remaining.

Asia-Pacific assessment
mechanistic model

see process-based model.

Scenarios and models assessment