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IPBES core glossary

The IPBES core glossary provides a standard definition for important terms of broad applicability to IPBES outputs. This core glossary does not replace the assessment-specific glossaries, but is complementary to them. It was developed by a glossary committee established for this purpose.

soil sealing

The covering of the soil surface with materials like concrete and stone, as a result of new buildings, roads, parking places, but also other public and private space.

soil stability

The integrity of soil aggregates, degree of soil structural development, and erosion resistance.

soil structure

The arrangement of soil particles in a variety of recognized shapes and sizes.

solitary bee

Bees that are not fully social (such as honey bees (q.v.), bumble bees (q.v.) and stingless bees (q.v.)), but are instead solitary or primitively social. There are more than 19,000 species of solitary bee.

sovereignty principle

Sovereignty in the sense of contemporary public international law denotes the basic international legal status of a state that is not subject, within its territorial jurisdiction, to the governmental, executive, legislative, or judicial jurisdiction of a foreign state or to foreign law other than public international law. A sovereign entity can decide and administer its own laws, can determine the use of its land and can do pretty much as it pleases, free of external influence (within the limitations of international law).

spatial downscaling_1

see downscaling.

spatial scale_1

Comprised of two properties: 1) spatial extent - the size of the total area of interest for a particular study (e.g. a watershed, a country, the entire planet); and 2) spatial grain (or resolution) - the size of the spatial units within this total area for which data are observed or predicted (e.g. fine-grained or coarse-grained grid cells).

spatial scale_2

In ecology, spatial scale refers to the spatial extent of ecological processes. The responses of organisms, populations, species or communities to the environment may differ at larger or smaller scales. Choosing the scale appropriate to a given ecological process is crucial to hypothesizing and determining the underlying causes of the processes and effects involved.

specialist species

A species that can thrive only in restrictive environmental conditions and can make use of only a few different (even only one) resources (for example, a flower-visiting insect that lives on the floral resources provided by one plant or a few different plants or a plant that depends on just one or only a few animal species for pollination).

species

An interbreeding group of organisms that is reproductively isolated from all other organisms, although there are many partial exceptions to this rule in particular taxa. Operationally, the term species is a generally agreed fundamental taxonomic unit, based on morphological or genetic similarity, that once described and accepted is associated with a unique scientific name.

species composition

The array of species in a specific sample, community, or area.

species composition_2

The array of species in a specific region, area, or assembly.

species distribution model_1

Species distribution models relate field observations of the presence/absence of a species to environmental predictor variables, based on statistically or theoretically derived response surfaces, for prediction and inference. The predictor variables are often climatic but can include other environmental variables.

species extirpation

The local extinction of a species.

species richness

The number of species within a given sample, community, or area.

species richness_1

Number of species.

species traits

The morphological, physiological, phonological or behavioural characteristics of an organism, that typically inform about its response to the environment and effects on the ecosystem (Lavorel & Garnier, 2002; Violle et al., 2007).

species traits_2

The morphological, physiological, phonological or behavioral characteristics of an organism, that typically inform about its response to the environment and effects on the ecosystem.

species-area relationship

A well-known strong empirical relationship between the area (A) of a region or patch of habitat and the number of species (S) it contains. Over most spatial scales, a power-law relationship S = cAz provides a good fit to data, with z often around 0.25 for separate sets of regions (known as the island species-area relationship) and 0.15 for nested parts of the same region (known as the continental species-area relationship). The species- area relationship has often been used to estimate the size of an extinction debt (qv) resulting from habitat loss.

species-led management

invasive alien species management (in all contexts) focused on reducing the threats and impacts of specific or multiple invasive alien species.

specific values

Specific values of nature are opinions or judgments regarding the importance of nature in a particular situation or context. Specific values can be grouped into three types: instrumental, intrinsic and relational values.

spillover (a. reference to populations; b. reference to disease transmission)

Pathogen spillover refers to the transfer of one or more pathogens from one population or species (or biotype) to another. A spillover event occurs when an infected reservoir population causes an epidemic in a novel host population.

spillover effects

Human impacts or natural disturbances beyond system boundaries. These effects can be positive or negative, socioeconomic or/and environmental and can be much more profound than the effects within the focal system.

spillover effects/off-site effects

Human impacts or natural disturbances beyond system boundaries. These effects can be positive or negative, socioeconomic or/and environmental and can be much more profound than the effects within the focal system (Liu et al., 2013).

stability (socio- ecological system)

The degree to which a system can continue to function if inputs, controls, or conditions are disrupted. It is a reflection of how minor a perturbation is capable of rendering the system inoperable or degraded; the types of perturbation to which the system is especially vulnerable; whether the system can “ignore” certain stresses; and the degree to which the system can be altered by surprise.

stages of invasion

Refers to the three stages that a species must successfully transit by in an invasion process and become an invasive species.

stakeholder_1

Actors that are involved in decision making processes and implementation, either as influencing the decision-making process, or as being dependent on, and therefore facing the consequences of, the decisions (incl. Public, private and civil society actors). For the values assessment, 13 stakeholder groups have been identified that can be categorised in three categories: Influencers, affected actors and key players (See section 6.1.2.2).

stakeholder_2

Any individuals, groups or organizations who affect, or could be affected (whether positively or negatively) by a particular issue and its associated policies, decisions and action.

state (socio- ecological system)

The collection of variables that describe the whole of the social- ecological system, including the attributes of ecosystem service providers and beneficiaries.

state (socio-ecological system)

The collection of variables that describe the whole of the social-ecological system, including the attributes of ecosystem service providers and beneficiaries (Harrington et al., 2010).

statistical downscaling

Downscaling based on interpolation of statistical relationships between specific model or scenario metrics and predictors with higher resolution data.

statistical model

see correlative model.

status

Based in actual observations (data).

stewardship

The activity or job of protecting and being responsible for something.

stewardship practices

The responsible use and protection of the natural environment through conservation actions, active restoration and the sustainable use and management of resources (N. J. Bennett et al., 2018).

stewardship practices_2

The responsible use and protection of the natural environment through conservation actions, active restoration and the sustainable use and management of resources.