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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)
biotechnology

A method for mitigating land degradation using mechanical (structures) and biological elements.

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

Any technological application that uses biological systems, living organisms, or derivatives thereof, to make or modify products or processes for specific use.

bioterrorism

The deliberate, private use of biological agents to harm and frighten the people of a state or society, is related to the military use of biological, chemical, and nuclear weapons.

Land degradation and restoration assessment
biotic facilitation

any interaction where the action of one species has a beneficial effect on another. This includes mutualistic interactions where both the facilitated and facilitator benefit (+/+), those which are commensal (+/0) when the effects of the facilitated on the facilitator are neutral as well as those which are antagonistic (+/?) when the facilitated negatively impact the facilitator. Note that this concept partially overlaps with that of mutualism, ecological engineering and niche construction

Invasive alien species assessment
biotic homogenization

See homogenization.

Europe and Central Asia assessment
biotic homogenization

also referred to as the ‘anthropogenic blender’ (Olden, 2006), the loss of biotic uniqueness, where local community assemblages are becoming more similar to each other on average, and this biotic homogenization

Invasive alien species assessment
biotic resistance to invasion

the ability of species in a community to limit the recruitment or invasion of other species (Catford et al., 2009; Levine et al., 2004). It is central to our understanding of how communities at risk of invasion assemble after disturbances, but it has yet to translate into guiding principles for the restoration of invasion-resistant communities

Invasive alien species assessment
black carbon

Black carbon is a carbonaceous aerosol. It is produced both naturally and by human activities as a result of the incomplete combustion of fossil fuels, biofuels, and biomass. Primary sources include emissions from diesel engines, cook stoves, wood burning and forest fires. Black carbon particles strongly absorb sunlight and give soot its black color. Thus, black carbon has emerged as a major contributor to global climate change, possibly second only to CO2 as the main driver of change.

Asia-Pacific assessment
blue carbon

The carbon stored in marine and coastal ecosystems.

Global assessment (1st work programme)
bog

An entirely rainfed wetland area that typically accumulates peat.

Land degradation and restoration assessment
Bonn challenge

A global effort to restore 150 million hectares of the world’s degraded and deforested lands by 2020 and 350 million hectares by 2030. It is overseen by the Global Partnership on Forest Landscape Restoration, with the International Union for Conservation of Nature as its Secretariat.

Americas assessment
bottom-up

Systems driven by basic or lower- order processes.

Asia-Pacific assessment
bottom-up control of the food web

A mode of control of trophic interactions by resources, in which organisms on each trophic level are food limited, as opposed to a top-down control (by predators), in which organisms at the top of food chains are food limited, and at successive lower levels, they are alternately predator, then food limited.

Global assessment (1st work programme)
boundary object

Objects and/or processes plastic enough to adapt to local needs and to the constraints of the several parties employing them, yet robust enough to maintain a common identity across sites. Their meanings may differ in different social contexts, but their structure is common enough and recognizable across contexts.

Americas assessment
brackish water

Inland water with a high salt concentration.

Land degradation and restoration assessment
brackish water

Water that has more salinity than fresh water, but not as much as seawater. It may result from mixing of seawater with fresh water, as in estuaries, or it may occur in brackish fossil aquifers. Technically, brackish water contains between 0.5 and 30 grams of salt per litre—more often expressed as 0.5 to 30 parts per thousand (‰), which is a specific gravity of between 1.005 and 1.010. Thus, brackish covers a range of salinity regimes and is not considered a precisely defined condition.

Asia-Pacific assessment
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.

Values assessment
bridging organizations

offer a means to improve environmental management outcomes by spanning the science-policy interface to allow for the effective sharing of data, information, and knowledge. Bridging organizations are institutions that use specific mechanisms such as working groups to link and facilitate interactions among individual actors in a management setting.

Invasive alien species assessment
broad values

They refer to life goals, general guiding principles and orientations towards the world that are informed by people’s beliefs and worldviews. Broad values include moral principles, such as justice, belonging, freedom, but also life goals, like enjoyment, health, prosperity. Broad values influence specific values and provide them with a general context and meaning.

Values assessment
buen vivir

Although no universal definition of buen vivir has been attained yet, it has four common constitutive elements: (a) the idea of harmony with nature (including its abiotic components); (b) vindication of the principles and values of marginalized/subordinated peoples; (c) the State as guarantor of the satisfaction of basic needs (such as education, health, food and water), social justice and equality; and (d) democracy. There are also two cross-cutting lines: buen vivir as a critical paradigm of Eurocentric (anthropocentric, capitalist, economistic and universalistic) modernity, and as a new intercultural political project.

Global assessment (1st work programme), Americas assessment
buen vivir

An alternative to economic development-centered approaches, generally defined as forming part of the Andean indigenous cosmology, based on the belief that true wellbeing is only possible as part of a community in a broad sense, including people, nature and the Earth, linked by mutual responsibilities and obligations, and that the wellbeing of the community is above that of the individual.

buffer (ecology)

A natural or anthropogenic feature which separates land uses.

Global assessment (1st work programme)
buffer zones (protected areas)

Areas between core protected areas and the surrounding landscape or seascape which protect the network from potentially damaging external influences and which are essentially transitional areas.

Global assessment (1st work programme)
built environment

Comprises urban design, land use and the transportation system, and encompasses patterns of human activity within the physical environment.

Land degradation and restoration assessment
bumble bee

Members of the bee genus Bombus; they are social insects that form colonies with a single queen, or brood parasitic or cuckoo bumblebees (previously Psithyrus). Currently 262 species are known, which are found primarily in higher latitudes and at higher altitudes in the Northern Hemisphere, although they also occur in South America and New Zealand (where they were introduced).

Pollination assessment
burden

The resulting negative impacts of ecosystem use and management on people and nature, including distant, diffuse and delayed impacts.

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

The IPBES Bureau is a subsidiary body established by the Plenary which carries out the governance functions of the Platform. It is made up of representatives nominated from each of the United Nations regions, and is chaired by the Chair of IPBES.

bureau

Within the context of IPBES - a subsidiary body established by the Plenary which carries out the administrative functions agreed upon by the Plenary, as articulated in the document on functions, operating principles and institutional arrangements of the Platform.

Scenarios and models assessment
bureau

The IPBES Bureau is a subsidiary body established by the Plenary which carries out the governance functions of IPBES. It is made up of representatives nominated from each of the United Nations regions and is chaired by the Chair of IPBES.

Land degradation and restoration assessment
bureau

The IPBES Bureau is a subsidiary body established by the Plenary which carries out the governance functions of IPBES. It is made up of representatives nominated from each of the United Nations regions, and is chaired by the Chair of IPBES.

Europe and Central Asia assessment
bush encroachment

An increase in density of shrubby or bushy tree vegetation in savannah or grassland systems.

Land degradation and restoration assessment
bushmeat

Meat for human consumption derived from wild animals.

Asia-Pacific assessment, Africa assessment, Europe and Central Asia assessment, Land degradation and restoration assessment, Americas assessment
bushmeat hunting

A form of subsistence hunting that entails the harvesting of wild animals for food and for non-food purposes, including for medicinal use.

Land degradation and restoration assessment
bushmeat hunting

Bushmeat (or wild meat) hunting is a form of hunting that entails the harvesting of wild animals for food and for non-food purposes, including for medicinal use.

Sustainable use assessment, Africa assessment
bushmeat hunting

Bushmeat (or wild meat) hunting is a form of subsistence hunting that entails the harvesting of wild animals for food and for non-food purposes, including for medicinal use.

Asia-Pacific assessment
bushmeat

See “wild meat”.

Sustainable use assessment
business-as-usual

IPCC term case assumes that future developments follow those of the past and no changes in policies will take place.

Asia-Pacific assessment
bycatch

The incidental capture of non-target species. The portion of a commercial fishing catch that consists of marine animals caught unintentionally.

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

The commercially undesirable species caught during a fishing process.

Europe and Central Asia assessment, Americas assessment, Asia-Pacific assessment
c3 photosynthesis

The major of the metabolic pathways for CO2 fixation by plants, involving a 3-carbon organic intermediate molecule. C3 photosynthetic plants possess a specific leaf structure, and are not adapted to non-optimal conditions.

Global assessment (1st work programme)
c3 plants

Plants that use C3 photosynthesis to capture CO2.

Global assessment (1st work programme)
c4 photosynthesis

C4 photosynthesis is an evolved metabolic mechanism for plant carbon fixation, in which atmospheric CO2 is first incorporated into a 4-carbon intermediate molecule. It allows for a more efficient process compared to C3 photosynthesis, especially in non-optimal water availability conditions and in the presence of high solar radiation.

Global assessment (1st work programme)
c4 plants

Plants that use C4 photosynthesis to capture CO2. The Poaceae family (grasses) accounts for about half of the C4 species.

Global assessment (1st work programme)
calibration (of models)

The use of observations, or in some cases a reference model, during model development to ensure that the model output compares favourably with the properties of the system being modelled.

Scenarios and models assessment, Asia-Pacific assessment
canned hunting

Hunting of animals in confined enclosures where they are unable to escape.

Sustainable use assessment
cap-and-trade

An economic policy instrument in which the State sets an overall environmental target (the cap) and assigns environmental impact allowances (or quotas) to actors that they can trade among each other.

Europe and Central Asia assessment, Land degradation and restoration assessment
capacity-building

Defined by the United Nations Development Programme as the process through which individuals, organisations and societies obtain, strengthen and maintain their capabilities to set and achieve their own development objectives over time. Within the context of this assessment, these capabilities include human resources and technical capacity required to support scenario analysis and modelling.

Scenarios and models assessment
capacity development

Process through which individuals, organizations and society obtain, strengthen and maintain their capability to set and achieve their own development objectives over time.

Values assessment
capacity dimensions

Capacity development can be described across six broad capacity dimensions. Motivational capacity builds awareness and desire to consider multiple values. Analytical capacity provides knowledge and tools to analyse multiple values. Bridging capacity brings together different ways of knowing and doing, often creating new knowledge in the process. Negotiation capacity navigates trade-offs and mainstreams into policy and practice. Social network capacity is the capacity to learn together, act and adapt or transform. Governance capacity creates formal and informal mechanisms for a socially just governance environment. These dimensions embody many concepts and principles for capacity development and recognition in decision making.

Values assessment
capacity-building

Defined by the United Nations Development Programme as “the process through which individuals, organizations and societies obtain, strengthen and maintain their capabilities to set and achieve their own development objectives over time”.

Sustainable use assessment