| exploitation |
The consumptive use of any natural resources.
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Sustainable use assessment |
| exploratory scenario |
See scenario.
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| exploratory scenario |
Scenarios that examine a range of plausible futures, based on potential trajectories of drivers - either indirect (e.g. socio-political, economic and technological factors) or direct (e.g. habitat conversion, climate change).
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Scenarios and models assessment |
| exploratory scenario |
Scenarios that examine a range of plausible futures, based on potential trajectories of drivers - either indirect (e.g. socio-political, economic and technological factors) or direct (e.g. habitat conversion, climate change).
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Sustainable use assessment |
| exposure |
The state of having no protection from something potential harmful.
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Asia-Pacific assessment |
| extensive forest management |
Low or no input in regeneration or site amelioration is practiced in sparsely populated regions with large forest areas, such as boreal forests (Taiga) of Canada and Siberia, and across much of the world´s major tropical forest biomes.
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| extensive grazing |
Extensive grazing is that in which livestock are raised on food that comes mainly from natural grasslands, shrublands, woodlands, wetlands, and deserts. It differs from intensive grazing, where the animal feed comes mainly from artificial, seeded pastures.
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Asia-Pacific assessment, Americas assessment |
| extensive grazing (lands) |
A form of grazing in which livestock are raised on food that comes mainly from natural grasslands, shrublands, woodlands, wetlands and deserts. It differs from intensive grazing, where the animal feed comes mainly from artificial, seeded pastures.
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Land degradation and restoration assessment |
| extent (spatial or temporal) |
see spatial scale and temporal scale”.
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Scenarios and models assessment |
| externality |
A positive or negative consequence (benefits or costs) of an action that affects someone other than the agent undertaking that action and for which the agent is neither compensated nor penalized through the markets.
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Land degradation and restoration assessment, Europe and Central Asia assessment, Global assessment (1st work programme), Asia-Pacific assessment, Sustainable use assessment, Americas assessment |
| externality |
an economic concept of uncompensated environmental effects of production and consumption that affect consumer utility and enterprise cost outside the market mechanism
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Invasive alien species assessment |
| extinction |
A population, species or more inclusive taxonomic group has gone extinct when all its individuals have died. A species may go extinct locally (population extinction), regionally ( extinction of all populations in a country, continent or ocean) or globally. Populations or species reduced to such low numbers that they are no longer of economic or functional importance may be said to have gone economically or functionally extinct, respectively. Species extinctions are typically not documented immediately: for example, the IUCN Red List categories and criteria require there to be no reasonable doubt that all individuals have died, before a species is formally listed as Extinct (see IUCN Red List).
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Sustainable use assessment |
| extinction debt |
The future extinction of species due to events in the past, owing to a time lag between an effect such as habitat destruction or climate change, and the subsequent disappearance of species.
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Global assessment (1st work programme), Global assessment (1st work programme), Europe and Central Asia assessment, Asia-Pacific assessment, Land degradation and restoration assessment, Pollination assessment |
| extinction |
A population, species or more inclusive taxonomic group has gone extinct when all its individuals have died. A species may go extinct locally (population extinction), regionally (e.g. extinction of all populations in a country, continent or ocean) or glo.
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| extinction |
The evolutionary termination of a species caused by the failure to reproduce and the death of all remaining members of the species; the natural failure to adapt to environmental change.
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Americas assessment |
| extractive practice |
Extractive practices are defined as the temporary or permanent removal of organisms, part of them or materials derived from them, and may result in mortality of the individual to be used (hunting or whole plant harvest), but does not necessarily do so (e.g. limited collection of plant propagules or shearing and releasing of vicuna).
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Sustainable use assessment |
| extractives |
Hydrocarbons (oil and gas) and minerals.
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Americas assessment |