polluter-pays principle |
The commonly accepted practice that those who produce pollution should bear the costs of managing it to prevent damage to human health or the environment. A polluter pays principle aims at preventing anybody from reaping the benefits at the expense of (or even considerable harm to) other members of the society.
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Land degradation and restoration assessment |
pollution |
Pollution is the introduction of contaminants into the natural environment that cause adverse change.
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Sustainable use assessment, Asia-Pacific assessment |
polycentric governance |
An organizational structure where multiple independent actors mutually order their relationships with one another under a general system of rules.
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Europe and Central Asia assessment, Sustainable use assessment, Invasive alien species assessment |
polycentric governance system |
Refers the organisation of small-, medium-, and large-scale democratic units that each may exercise considerable independence to make and enforce rules within a circumscribed scope of authority for a specified geographical area. Some units may be general-purpose governments whereas others may be highly specialized.
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Africa assessment |
polyculture |
The simultaneous cultivation or growth of two or more compatible agricultural products (intercropping, some crops and livestock, agroforestry, agriculture and aquaculture).
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Pollination assessment |
polymerase chain reaction |
sometimes called molecular photocopying, the polymerase chain reaction (PCR) is a fast and inexpensive technique used to amplify - copy - small segments of DNA. Because significant amounts of a sample of DNA are necessary for molecular and genetic analyses, studies of isolated pieces of DNA are nearly impossible without PCR amplification
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Invasive alien species assessment |
polyphyletic taxon |
A group composed of a collection of organisms in which the most recent common ancestor of all the included organisms is not included, usually because the common ancestor lacks the characteristics of the group. Polyphyletic taxa are considered unnatural, and usually are reclassified once they are discovered to be polyphyletic.
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Global assessment (1st work programme) |
population bottleneck |
A decrease in the gene pool of the population due to an event that drastically reduces the size of that population, such as an environmental disaster, the hunting of a species to the point of extinction, or habitat destruction that results in the deaths of organisms. Due to the event, many alleles, or gene variants, that were present in the original population are lost and the remaining population has a very low level of genetic diversity.
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Global assessment (1st work programme) |
population genetic structure |
The total genetic diversity and its distribution within and among a set of populations. It is shaped by many factors, including life history, population size, geographical or environmental barriers, gene flow, selection and population crashes or bottlenecks.
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Global assessment (1st work programme) |
pore-water pressure |
The pressure exerted by a fluid phase in a porous medium (soil or rock) composed of a solid framework and pores filled or partially filled with water or other fluid (Reid, 2013).
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Global assessment (1st work programme) |
poverty line |
A level of personal or family income below which one is classified as poor according to governmental standards. It is also referred as poverty threshold.
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Asia-Pacific assessment |
poverty |
A state of deprivation that is multidimensional in nature. Poverty is more than the lack of income and resources to ensure a sustainable livelihood. Its manifestations include hunger and malnutrition, limited access to education and other basic services, social discrimination and exclusion as well as the lack of participation in decision-making.
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Land degradation and restoration assessment |
poverty |
Poverty is a state of economic deprivation. Its manifestations include hunger and malnutrition, limited access to education and other basic services. Other corollaries of poverty are social discrimination and exclusion as well as the lack of participation in decision-making.
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Americas assessment |
poverty |
A state of economic deprivation. Its manifestations include hunger and malnutrition, limited access to education and other basic services. Other corollaries of poverty are social discrimination and exclusion as well as the lack of participation in decision-making.
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Global assessment (1st work programme), Europe and Central Asia assessment, Pollination assessment |
power |
Power is the capacity of actors to mobilize agency, resources, and discourses, as well as to utilize or shape institutions to achieve a goal. Power can be both constraining and enabling, and the capacity of one actor can inhibit the capacity of another actor. Power in the context of human-nature relationships can be manifested in multiple and non-exclusive ways through discourses and social structures. Discursive power is the power to use discourses or knowledge production to shape worldviews, identities, and values. Related to discursive power is the power to frame how issues are understood, communicated, and discussed (framing power). Structural power is the result of historically-specific socio-cultural, political, and economic systems that reproduce social positions and/or hierarchies among social groups. Structural power relations determine, for example, who has the power to make rules regarding access, use, and responsibilities about nature/NCP, and who is excluded from this process (rule-making power); as well who has the formal or informal rights regarding nature/NCP which in turn determines the use of these assets and whose values are emphasized (operational power).
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Values assessment |
practice |
A customary action, habit, or behaviour; a manner or routine.
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Values assessment |
practices (type of wild species practices) |
See “gathering”, “fishing”, “terrestrial animal harvesting”, “logging”, “non-extractive practices” and “non-lethal harvest”.
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Sustainable use assessment |
precautionary approach |
where there are threats of serious or irreversible damage, lack of full scientific certainty shall not be used as a reason for postponing cost-effective measures to prevent environment degradation (Principle 15 of the 1992 Rio Declaration,
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Invasive alien species assessment |
precautionary principle |
Pertains to risk management and states that if an action or policy has a suspected risk of causing harm to the public or to the environment, in the absence of scientific consensus that the action or policy is not harmful, the burden of proof that it is not harmful falls on those taking an action. The principle is used to justify discretionary decisions when the possibility of harm from making a certain decision (e.g. taking a particular course of action) is not, or has not been, established through extensive scientific knowledge. The principle implies that there is a social responsibility to protect the public from exposure to harm, when scientific investigation has found a plausible risk or if a potential plausible risk has been identified.
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Asia-Pacific assessment, Land degradation and restoration assessment, Europe and Central Asia assessment |
precautionary principle |
Pertains to risk management and states that if an action or policy has a suspected risk of causing harm to the public or to the environment, in the absence of scientific consensus that the action or policy is not harmful, the burden of proof that it is not harmful falls on those taking an action. The principle is used to justify discretionary decisions when the possibility of harm from making a certain decision ( taking a particular course of action) is not, or has not been, established through extensive scientific knowledge. The principle implies that there is a social responsibility to protect the public from exposure to harm, when scientific investigation has found a plausible risk or if a potential plausible risk has been identified.
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Sustainable use assessment |
prediction |
When a projection is branded most likely it becomes a forecast or prediction, often obtained using deterministic models, outputs of which can enable some level of confidence to be attached to projections.
|
Scenarios and models assessment |
predictive modelling |
The use of statisitics or other analytical methods to make predictions into the future.
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Asia-Pacific assessment |
preference |
They denote stated or revealed choices of one or more alternatives over others and can be expressed in economic or sociocultural terms. Despite being considering synonyms for value in some disciplines (economics), preferences should be understood as rankings of possible outcomes in terms of their specific value to people (e.g. preferences related to health and good quality of life) (section 2.2.4.4).
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Values assessment |
preparedness (in the context of invasive alien species management) |
any policy and/or action undertaken to prepare for the probable arrival of a potential invasive alien species including any preventative or adaptive response activity
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Invasive alien species assessment |
pressures |
see direct drivers.
|
Scenarios and models assessment |
prevention |
for the purpose of this assessment, any policy and/or action/response undertaken to prevent the arrival and/or introduction of alien and invasive alien species, between and within countries and regions. Prevention is generally far more cost-effective and environmentally beneficial than measures taken following introduction and establishment of an invasive alien species
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Invasive alien species assessment |
preventive response |
Conservation measures that maintain land and its environmental and productive functions.
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Land degradation and restoration assessment |
preventive response |
Refer to conservation measures that maintain land and its environmental and productive functions.
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|
price |
The quantity of payment or compensation given by one party to another in return for goods or services.
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Pollination assessment |
primary production |
The conversion of energy to organic substances by photosynthetic and chemosynthetic autotrophic organisms.
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Sustainable use assessment, Asia-Pacific assessment |
primary production |
Primary production is the process whereby inorganic carbon is fixed in the sunlit (euphotic) zone of the upper ocean, and forms the base of the marine food pyramid.
|
Americas assessment |
primary vegetation |
Vegetation in a particular plant assemblage that has not been subject to human disturbance, or has been so little affected that its natural structure, functions and dynamics have not undergone any change that exceed the elastic capacity of the ecosystem.
|
Global assessment (1st work programme) |
principle of compatibility |
This principle limits the level of restoration of polluted sites to the quality required for the next use that would have been planned by industrial companies, in accordance to land planning documents.
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|
prior informed consent |
See “Free, prior and informed consent (FPIC)”.
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Sustainable use assessment |
prior informed consent |
Before access to knowledge or genetic resources takes place(Prior), based on truthful information about the use that will be made of the knowledge or genetic resources that is adequate for the authority to understand the implications(Informed), the government, stakeholders or rights holders could be explicit consent(consent).
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Asia-Pacific assessment |
prior informed consent |
Consent given before access to knowledge or genetic resources takes place, based on truthful information about the use that will be made of the resources, which is adequate for the stakeholders or rights holders giving consent to understand the implications.
|
Americas assessment, Land degradation and restoration assessment |
prior informed consent |
See 'Free, prior and informed consent (FPIC)'.
|
Global assessment (1st work programme) |
private deforestation |
Deforestation occurring on private lands.
|
Global assessment (1st work programme) |
problem identification |
see agenda setting.
|
Scenarios and models assessment |
procedural justice |
refers to fairness in the political processes that allocate resources and resolve disputes. It involves recognition, inclusion, representation and participation in decision-making.
|
Values assessment |
process-based model |
A model in which relationships are described in terms of explicitly stated processes or mechanisms based on established scientific understanding, and model parameters therefore have clear ecological interpretation, defined beforehand.
|
Scenarios and models assessment |
process-based model |
See models.
|
Europe and Central Asia assessment |
producer surplus |
The amount that producers benefit by selling at a market price that is higher than the least that they would be willing to accept for that good or service. It is roughly equal to profit (q.v.): producers are not normally willing to sell at a loss, and are normally indifferent to selling at a break-even price.
|
Pollination assessment |
production function |
A mathematical equation or graph that shows the relationship between physical inputs and physical outputs for a business.
|
Pollination assessment |
profit |
The financial gain, especially the difference between the amount earned and the amount spent in buying, operating, or producing something.
|
Pollination assessment |
projection |
Any description of the future, and the pathway leading to it.
|
Scenarios and models assessment |
propagule pressure |
The quantity, quality and frequency of propagules (such as spores, eggs, larvae, or adults) released in a given location. This term can be seen as the introduction effort, i.e. the pool of individuals introduced in a new ecosystem/area/region and the number of times it is released.
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Americas assessment |
propagule pressure |
a measure of introduction intensity, including release from captivity or cultivation, comprising both the number of individuals of a species introduced per introduction (propagule size) and the frequency of introductions
|
Invasive alien species assessment |
protected area |
A protected area is a clearly defined geographical space, recognized, dedicated and managed, through legal or other effective means, to achieve the long-term conservation of nature with associated ecosystem services and cultural values.
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Asia-Pacific assessment, Europe and Central Asia assessment, Americas assessment, Africa assessment, Sustainable use assessment, Global assessment (1st work programme), Pollination assessment |
protected area downgrading, downsizing and degazettement |
Refers to legal changes that ease restrictions on the use of a protected area, shrink a protected area's boundaries or eliminate legal protections entirely (Mascia & Pailler, 2011).
|
Global assessment (1st work programme) |