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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)
kelp

A large brown seaweed that typically has a long, tough stalk with a broad frond divided into strip.

Asia-Pacific assessment
key biodiversity area

Sites contributing significantly to the global persistence of biodiversity. They represent the most important sites for biodiversity worldwide, and are identified nationally using globally standardised criteria and thresholds.

Americas assessment, Europe and Central Asia assessment, Africa assessment, Global assessment (1st work programme), Asia-Pacific assessment
key biodiversity area

Sites contributing significantly to the global persistence of biodiversity. They represent the most important sites for biodiversity conservation worldwide, and are identified nationally using globally standardized criteria and thresholds.

key players

People and organizations who both can influence and become affected by decisions - that is, in certain contexts, they serve as influencers, while at the same time are involved in actual decision making.

Values assessment
keystone species

A species whose impact on the community or ecosystem is disproportionately large relative to its abundance. Effects can be produced by consumption (trophic interactions), competition, mutualism, dispersal, pollination, disease, or habitat modification (non-trophic interactions).

Sustainable use assessment
keystone species

A species whose impact on the community or ecosystem is disproportionately large relative to its abundance. Effects can be produced by consumption (trophic interactions), competition, mutualism, dispersal, pollination, disease, or habitat modification (no.

keystone species

Species that maintain the organization and diversity of their ecological communities and are thus exceptional, relative to the rest of the community, in their importance. Species that, despite low biomass, exert strong effects on the structure of the communities they inhabit.

Asia-Pacific assessment
kinship-centric principle (non-humans)

animals, plants and spirits, and such approach forms part of an indigenous cultural identity. Maintaining reciprocal and healthy relationships through a continuum with animals, plants and the lands where they reside involve the giving and taking of resources in appropriate ways, at appropriate times. In some cases, animals and plants are seen and treated as equals to humans and shape and reshape human relations with nature. Often, the values embedded in these relationships drive human behaviour and are elicited through certain valuation methods. Appreciation (no disregard) for spiritual entities (e.g. sacred mountains, rivers, among others) residing on ancestral lands, can be an example of a Kinship-central approach (focused on non-humans).

Values assessment
kinship-centric principle (other humans)

Actions of mutual support between humans such as sharing, gender equity, social equity, honesty, humility, modesty. Some of these elements can be revealed as relevant through valuation methods and approaches, as well as by practices associated with them.

Values assessment
knowledge system

Indigenous and local knowledge systems are understood to be dynamic bodies of integrated, holistic, social and ecological understandings, know-hows, practices and beliefs pertaining to the relationship of living beings, including people, with one another and with their environment. Indigenous and local knowledge is grounded in territory, is highly diverse and is continuously evolving through the interaction of experiences, skills, innovations and different types of wisdom expressed in multiple ways (written, oral, visual, tacit, practical and scientific). Such knowledge can provide information, methods, theory and practice for sustainable ecosystem management. Indigenous and local knowledge systems have been, and continue to be, empirically tested, applied, contested and validated through different means in different contexts. Western Academic knowledge systems relate to often explicit knowledge that has been derived from applying formal methods in academic or technical institutions.

Values assessment
knowledge system

A body of propositions that are adhered to, whether formally or informally, and are routinely used to claim truth.

Scenarios and models assessment
knowledge system

A body of propositions that are adhered to, whether formally or informally, and are routinely used to claim truth. They are organized structures and dynamic processes (a) generating and representing content, components, classes, or types of knowledge, that are (b) domain-specific or characterized by domain-relevant features as defined by the user or consumer, (c) reinforced by a set of logical relationships that connect the content of knowledge to its value (utility), (d) enhanced by a set of iterative processes that enable the evolution, revision, adaptation, and advances, and (e) subject to criteria of relevance, reliability, and quality.

Europe and Central Asia assessment, Americas assessment, Sustainable use assessment, Land degradation and restoration assessment, Asia-Pacific assessment
knowledge system

Organized structures and dynamic processes (a) generating and representing content, components, classes, or types of knowledge, that are (b) domain-specific or characterized by domain-relevant features as defined by the user or consumer, (c) reinforced by a set of logical relationships that connect the content of knowledge to its value (utility), (d) enhanced by a set of iterative processes that enable the evolution, revision, adaptation, and advances, and (e) subject to criteria of relevance, reliability, and quality.

Pollination assessment
knowledge system

A body of propositions that are adhered to, whether formally or informally, and are routinely used to claim truth. They are organised structures and dynamic processes: generating and representing content, components, classes, or types of knowledge, that are, domain-specific or characterised by domain-relevant features as defined by the user or consumer,, reinforced by a set of logical relationships that connect the content of knowledge to its value (utility),, enhanced by a set of iterative processes that enable the evolution, revision, adaptation, and advances, and,, subject to criteria of relevance, reliability, and quality.

Africa assessment
kyoto protocol

An international agreement linked to the United Nations Framework Convention on Climate Change, which commits its Parties by setting internationally binding emission reduction targets.

Asia-Pacific assessment
taboo

A social or religious custom prohibiting or restricting a particular practice or forbidding association with a particular person, place, or behavior.

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

A choice by people of a desired contemporary or future outcome.

Land degradation and restoration assessment
target condition

A condition that maximizes the desired mix of ecosystem services.

Land degradation and restoration assessment
target-seeking scenario

Scenarios that start with the definition of a clear objective, or a set of objectives, specified either in terms of achievable targets, or as an objective function to be optimized, and then identify different pathways to achieving this outcome (e.g. through backcasting).

Scenarios and models assessment
target-seeking scenario

See “scenarios”.

Americas assessment, Sustainable use assessment
taxon

A category applied to a group in a formal system of nomenclature, e.g. species, genus, family etc. (plural: taxa).

Global assessment (1st work programme), Sustainable use assessment, Americas assessment, Asia-Pacific assessment, Europe and Central Asia assessment
taxonomic diversity

Variety of species or other taxonomic categories (IUCN, 2012a).

Global assessment (1st work programme)
technical paper

Technical papers are based on the material contained in the assessment reports and are prepared on topics deemed important by the Plenary.

technical summary

A Technical Summary is a longer detailed and specialized version of the material contained in the summary for policymakers.

telecoupling

Tele-coupling refers to socioeconomic and environmental interactions over distances. It involves distant exchanges of information, energy and matter (e.g. people, goods, products, capital) at multiple spatial, temporal and organizational scales.

Africa assessment
tele-grabbing

Transboundary acquisition of land.

Global assessment (1st work programme)
teleconnection

Relates to the environmental interactions between climatic systems over considerable distances.

Americas assessment
teleconnection

A statistical association between climate variables at widely separated, geographically-fixed spatial locations. Teleconnections are caused by large spatial structures such as basin-wide coupled modes of ocean-atmosphere variability, Rossby wave-trains, mid-latitude jets and storm tracks, etc.

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

Socioeconomic and environmental interactions over distances. It involves distant exchanges of information, energy and matter (e.g. people, goods, products, capital) at multiple spatial, temporal and organizational scales.

Land degradation and restoration assessment
telecoupling

Refers to socioeconomic and environmental interactions over distances. It involves distant exchanges of information, energy and matter (e.g. people, goods, products, capital) at multiple spatial, temporal and organizational scales.

Europe and Central Asia assessment, Americas assessment
telecoupling

Telecoupling refers to socioeconomic and environmental interactions over distances. It involves distant exchanges of information, energy and matter (e.g. people, goods, products, capital) at multiple spatial, temporal and organizational scales.

Global assessment (1st work programme), Global assessment (1st work programme)
telecoupling

Telecoupling refers to the phenomenon that natural or anthropogenic processes in one part of the globe have an effect on a distant part of the world (Friis et al., 2016). This concept thus enables the description of flows and impacts between globally distant places in a common language. Synonym in the literature is global inter-regional connectedness.

IPBES-IPCC co-sponsored workshop on biodiversity and climate change
temporal scale

Comprised of two properties: 1) temporal extent - the total length of the time period of interest for a particular study (e.g. 10 years, 50 years, or 100 years); and 2) temporal grain (or resolution) - the temporal frequency with which data are observed or projected within this total period (e.g. at 1-year, 5-year or 10-year intervals).

Pollination assessment, Global assessment (1st work programme), Scenarios and models assessment
temporal scales

Measurements or other observations reported along a time series.

Asia-Pacific assessment, Sustainable use assessment
tenure

The act, fact, manner, or condition of holding something in one’s possession, as real estate or an office; occupation.

Pollination assessment
tenure security

An agreement between an individual or group to land and residential property, which is governed and regulated by a legal and administrative framework includes both customary and statutory systems.

Asia-Pacific assessment, Sustainable use assessment, Land degradation and restoration assessment, Global assessment (1st work programme)
tenure

Tenure systems define who can use which Nature’s contributions to people, for how long and under what conditions. Three related aspects of tenure offer a comprehensive understanding of the term. They include (1) tenure as a set of rights, (2) key responsibilities in relation to tenure, and (3) enabling conditions that facilitate governance of tenure. From this combined perspective, tenure is understood as the combination of a set of specific rights that connect the resource users with various aspects of the resource and puts the control and decision-making power in their hands. These rights span social, ecological, economic, and political aspects of tenure, and help provide directions to moving toward effective governance. Rights are connected with responsibilities that range from the duties of the users to maintain the resource to the duties to be performed by the state, and those jointly by both. The exercise of tenure rights can only be possible if certain conditions are meaningfully met because they offer the much required social, ecological, and political environment for the operationalization of tenure rights, performance of the tenure related duties, and necessary security and protection against tenure violations. From an integrated social-ecological (human-environmental) systems perspective, tenure is defined as relationships (also interactions and connections) between people (the users) who seek tenure and between the people (users) and the environment (includes the resource) to which tenure is being sought. Governance of tenure is then about the manner in which these host of relationships, interactions, and connections are addressed and promoted. Tenure in the context of sustainable use of wild species is not a static concept and, therefore, can be best understood as a process and its governance as continuous.

Sustainable use assessment
teratogen

Any agent that causes an abnormality following fetal exposure during pregnancy.

Americas assessment
terrestrial animal harvesting

Terrestrial animal harvesting is defined as the removal from their habitat of animals (vertebrates and invertebrates) that spend some or all of their life cycle in terrestrial environments. As for fishing, terrestrial animal harvesting often results in the death of the animal, but it may not in some cases. To reflect both situations, terrestrial animal harvesting has been sub-divided into a lethal and a “non- lethal” category. Hunting is defined as the lethal category of terrestrial animal harvesting which leads to the killing of the animal, such as in trophy hunting. “Non-lethal” terrestrial animal harvesting is defined as the temporary or permanent capture of live animals from their habitat without intended mortality, such as pet trade, falconry or green hunting. Non-lethal harvest of animals also includes removal of parts or products of animals that do not lead to the mortality of the host, such as vicuña fiber or wild honey. Unintended mortality may however occur in this category and the term “non-lethal” is therefore put in quotes.

Sustainable use assessment
terrestrial productivity

Net Primary Production (NPP) from the terrestrial environment.

Land degradation and restoration assessment
territorial use rights in fisheries

Give a specific harvester exclusive access to ocean areas.

Americas assessment
territorial use rights in fisheries

Give a specific harvester exclusive access to ocean areasJ. E. Wilen, Cancino, & Uchida, 2012.

Global assessment (1st work programme)
thermodynamics

The science of the relationship between heat, work, temperature, and energy. In broad terms, thermodynamics deals with the transfer of energy from one place to another and from one form to another. The key concept is that heat is a form of energy corresponding to a definite amount of mechanical work. The behaviour of a complex thermodynamic system, such as Earth's atmosphere, can be understood by first applying the principles of states and properties to its component parts—in this case, water, water vapour, and the various gases making up the atmosphere. By isolating samples of material whose states and properties can be controlled and manipulated, properties and their interrelations can be studied as the system changes from state to state.

Land degradation and restoration assessment
threatened species

In the IUCN Red List terminology, a threatened species is any species listed in the Red List categories: critically endangered, endangered, or vulnerable.

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

Harmful or fatal effect of a small change in environmental conditions that exceeds the limit of tolerance of an organism or population of a species.

Sustainable use assessment
threshold

Magnitudes or intensities that must be exceeded for a certain reaction, phenomenon, result, or condition to occur or be manifested.

Asia-Pacific assessment
tidal flat

Intertidal, non-vegetated, soft sediment habitats, found between mean high- water and mean low-water spring tide datums and generally located in estuaries and other low energy marine environments (Dineen, 2010).

Global assessment (1st work programme)
tillage

In agriculture, the preparation of soil for planting and the cultivation of soil after planting.

Land degradation and restoration assessment
timber line

The altitude (in mountains) and latitude above which trees are unable to grow - also called tree line (Lawrence, 2005).

Global assessment (1st work programme)
tipping point

A set of conditions of an ecological or social system where further perturbation will cause rapid change and prevent the system from returning to its former state.

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