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.
| hedgerow | A row of shrubs or trees that forms the boundary of an area such as a garden, field, farm, road or right-of-way. |
| hedonic pricing | An economic valuation approach that utilizes information about the implicit demand for an environmental attribute of marketed commodities. |
| herbicide | A substance that kills or inhibits the germination, growth and development of plants. Herbicides may be synthetic chemicals, natural chemicals, or biological agents. |
| holocene | The Holocene is the current geological epoch. It began after the Pleistocene, approximately 11,650 calendar years before present. |
| homegarden | Yard areas surrounding a house for vegetable and fruit production and keeping of domestic animals. In many regions homegardens contain wild species utilized as medicinal plants, timber or other uses. |
| homeotherms | Organisms (vertebrates) with a constant and high body temperature, with a high level of energy exchange. |
| homogenisation_1 | When used in the ecological sense homogenisation means a decrease in the extent to which communities differ in species composition. |
| homogenization | When used in the ecological sense homogenisation means a decrease in the extent to which communities differ in species or functional composition. |
| homogenization_2 | When used in the ecological sense homogenization means a decrease in the extent to which communities differ in species composition. |
| honey bee | Any bee that is a member of the genus Apis. They are primarily distinguished by the production and storage of honey and the construction of perennial, colonial nests from wax. Currently, eight species of honey bee are recognized. |
| horticulture | High investment crop production using resources intensively for high value product. |
| hotspot of agrobiodiversity | Areas with significantly high levels of agrobiodiversity. |
| hotspot of endemism | See 'Biodiversity hotspot'. |
| human appropriation of net primary production (hanpp)_4 | The aggregate impact of land use on biomass available each year in ecosystems. |
| human capital | All the knowledge, talents, skills, abilities, experience, intelligence, training, judgment and wisdom possessed individually and collectively by individuals in a population. |
| human history | A general term used to refer to pre-historical and historical periods describing the development of humanity. Different classifications of periods exist reflecting different interpretation of human history. |
| human rights | Rights inherent to all human beings, regardless of race, colour, sex, language, religion or other opinion, national or social origin, property, birth or any other status. These rights are interrelated, interdependent and indivisible. |
| human rights instruments | Instruments for the protection and promotion of human rights, including general instruments, instruments concerning specific issues, and instruments relating to the protection of particular groups. |
| human rights_2 | The inalienable fundamental rights of each and every human being as acknowledged in the United Nations Declaration of Human Rights (United Nations, 1948). Arguments of intragenerational justice basically refer to human rights. |
| human values | See Values. |
| human well-being_1 | A state of existence that fulfils various human needs, including material living conditions and quality of life, as well as the ability to pursue one's goals, to thrive, and feel satisfied with one's life (IPCC, 2020). The IPBES definition is consistent with this definition but notes that well-being also includes non-material living conditions and cultural identity. The phrase ‘Good quality of Life' as used in this report (see glossary entry) is intended to be inclusive of both the human well-being definitions given above. |
| human well-being_2 | See Good Quality of Life. |
| human well-being_3 | see well-being. |
| human-nature relations | The ways in which people relate to and engage with the natural environment, which are diverse and linked to worldviews, values and attitudes embedded in daily life. |
| humanistic economics | Humanistic economics intend to show that humankind is perfectly capable of living without the profit motive, and has done so for most of its history. It goes again the tendency to consider the profit motive as self-evident, an idea that underlies many political decisions. See also Behavioural economics. |
| humification | Decomposition of organic material followed by a synthesis of humic substances. |
| hunting | The capture by humans of wild mammals, birds, and reptiles, whether dead or alive, irrespective of the techniques used to capture them or the reasons to do so. |
| hybrid model | See models. |
| hybrid models | Models that combine correlative and process-based modelling approaches. |
| hydraulic fracturing (or fracking) | An oil and gas well development process that typically involves injecting water, sand, and chemicals under high pressure into a bedrock formation via the well. This process is intended to create new fractures in the rock as well as increase the size, extent, and connectivity of existing fractures. Hydraulic fracturing is a well-stimulation technique used commonly in low-permeability rocks like tight sandstone, shale, and some coal beds to increase oil and/or gas flow to a well from petroleum-bearing rock formations. |
| hydrothermal vent | A fissure on the floor of a sea out of which flows water that has been heated by underlying magma. The water can be as hot as 400°C (752°F) and usually contains dissolved minerals that precipitate out of it upon contact with the colder seawater, building a stack of minerals, or chimney. Hydrothermal vents form an ecosystem for microbes and animals, such as tube worms, giant clams, and blind shrimp, that can with stand the hostile environment. The hottest hydrothermal vents are called black smokers because they spew iron and sulfide which combine to form iron mono sulfide, a black compound. |
| hypoxia | Low dissolved oxygen levels in coastal and oceanic waters (<2mL per liter of water), either naturally occurring or as a result of a degradation (e.g. eutrophication). |
| identity | The ways in which people understand who they are, their belonging and role in society, and their relation to their broader environment. |
| illegal logging | The harvesting, processing, transporting, buying or selling of timber in contravention of national and international laws. |
| illegal practices | Illegal is defined in the context of this assessment when it violates laws and regulations. |
| illegal, unreported and unregulated (iuu) fishing | A broad term which includes: fishing and fishing-related activities conducted in contravention of national, regional and international laws; non-reporting, misreporting or under- reporting of information on fishing operations and their catches; fishing by “Stateless” vessels; fishing in convention areas of Regional Fisheries Management Organizations (RFMOs) by non-party vessels; fishing activities which are not regulated by States and cannot be easily monitored and accounted for. |