| Subject | English | Spanish |
| org.name. | Action Programme on Conservation of Tropical Forest Ecosystems | Programa de acción sobre conservación de ecosistemas forestales tropicales |
| UN, biol., sec.sys. | Ad hoc intergovernmental and multi-stakeholder meeting on an intergovernmental science-policy platform on biodiversity and ecosystem services | Reunión especial intergubernamental y de interesados múltiples acerca de una plataforma intergubernamental político-científica sobre la diversidad biológica y los servicios de los ecosistemas |
| environ. | adaptability of ecosystems | adaptabilidad del ecosistema |
| environ., agric. | agricultural ecosystem | ecosistema agrícola |
| ichtyol. | agricultural ecosystems | ecosistemas agrícolas |
| environ. | Antarctic ecosystem | ecosistema antártico |
| environ. | aquatic ecosystem | ecosistema acuático |
| environ. | aquatic ecosystem | ecosistemas acuáticos |
| environ. | aquatic ecosystem | hidroecosistema |
| environ. | aquatic ecosystem Any watery environment, from small to large, from pond to ocean, in which plants and animals interact with the chemical and physical features of the environment | ecosistemas acuáticos |
| environ. | Arctic ecosystem | ecosistema ártico |
| environ. | arid land ecosystem | ecosistema árido |
| environ. | arid land ecosystem The interacting system of a biological community and its non-living environmental surroundings in a climatic region where the annual precipitation averages less than 10 inches per year | ecosistema árido |
| org.name. | Assessment and monitoring of the fishery resources and ecosystems in the strait of Sicily | Evaluación y control de los ecosistemas y de los recursos pesqueros en el estrecho de Sicilia |
| environ. | basin ecosystem | ecosistema léntico |
| environ. | basin ecosystem | ecosistema lenítico |
| environ. | benthic coastal ecosystem | ecosistema bentónico costero |
| nat.sc. | benthic coastal ecosystem | ecosistema béntico costero |
| environ. | benthic ecosystem | ecosistema béntico |
| environ. | benthic ecosystem | ecosistema bentónico |
| environ. | benthic ecosystem The interacting system of the biological communities located at the bottom of bodies of freshwater and saltwater and their non-living environmental surroundings | ecosistema béntico |
| UN, ecol. | biotope= ecosystem | biotope, ecosistema |
| UN, ecol. | biotope = ecosystem | ecosistema (biotopo) |
| environ., min.prod. | coastal ecosystem | ecosistema costero |
| environ. | coastal ecosystem | ecosistemas costeros |
| environ., min.prod. | coastal ecosystem | ecosistema ribereño |
| environ. | coastal ecosystem Marine environments bounded by the coastal land margin (seashore) and the continental shelf 100-200 m below sea level. Ecologically, the coastal and nearshore zones grade from shallow water depths, influenced by the adjacent landmass and input from coastal rivers and estuaries, to the continental shelf break, where oceanic processes predominate. Among the unique marine ecosystems associated with coastal and nearshore waterbodies are seaweed-dominated communities, coral reefs and upwellings | ecosistemas costeros |
| environ. | cold zone ecosystem | ecosistema de zona fría |
| environ. | cold zone ecosystem The interacting system of a biological community and its non-living environmental surroundings located in climatic regions where the air temperature is below 10° Celsius for eight to eleven months of the year | ecosistema de zona fría |
| UN | Committee on Island Ecosystems | Comité sobre Ecosistemas Insulares |
| org.name. | Conference of the Central African Moist Forest Ecosystems | Conferencia sobre ecosistemas de los bosques densos de África central |
| environ. | conference on Ecosystems and sustainable development | conferencia sobre Ecosistemas y desarrollo sostenible |
| UN, biol., sec.sys. | Conservation of Biological Diversity in Mountain Ecosystems | Conservación de la diversidad biológica en los ecosistemas de montaña |
| org.name. | Convergence Plan for the Conservation and Sustainable Management of Forest Ecosystems in Central Africa | Plan de convergencia |
| UN | downstream ecosystem | ecosistema de aguas abajo |
| UN, ecol. | Drylands Ecosystems and Desertification Control Programme Activity Centre PAC | Centro de Actividades del Programa CAP de Ecosistemas de las Tierras Secas y Lucha contra la Desertificación |
| nat.sc. | ecosystem adaptability | adaptabilidad del ecosistema |
| environ. | ecosystem analysis | análisis de ecosistema |
| environ. | ecosystem analysis Detailed study of an ecosystem carried out to ascertain its features from the point of view of its soil composition, energy flux, biogeochemical cycles, biomass, organisms and their relationship with the environment | análisis de ecosistema |
| life.sc., environ. | ecosystem approach | enfoque por ecosistemas |
| UN, biol., sec.sys. | ecosystem approach | enfoque ecosistémico |
| life.sc., environ. | ecosystem approach | enfoque centrado en los ecosistemas |
| UN | ecosystem approach | enfoque de ecosistemas |
| life.sc., environ. | ecosystem approach | enfoque basado en los ecosistemas |
| UN | ecosystem assessment | evaluación del ecosistema prop. |
| UN | ecosystem assessment | evaluación del ecosistema |
| fishery | ecosystem-based fisheries management | gestión pesquera basada en el ecosistema |
| fishery | ecosystem-based management of fisheries | gestión pesquera basada en el ecosistema |
| health. | ecosystem biomass | biomasa del ecosistema |
| UN | Ecosystem Conservation Group | Grupo de Conservación de Ecosistemas |
| org.name. | Ecosystem Conservation Group | Grupo para la Conservación de los Ecosistemas |
| environ., UN | Ecosystem Conservation Group | Grupo sobre la Conservación de Ecosistemas |
| environ. | ecosystem contamination is a function of initial activity levels and contact time | la contaminación del ecosistema es función de la actividad inicial y del tiempo de contacto |
| environ. | ecosystem degradation | degradación de ecosistemas |
| environ. | ecosystem degradation Degradation or destruction of large natural environments. When one ecosystem is under attack as a result of natural or man-made disaster it is extremely difficult to calculate the ripple effects throughout nature. When two or more ecosystems are being degraded the probabilities of synergistic destructiveness multiply. Ecosystems in many regions are threatened, despite their biological richness and their promise of material benefits | degradación de ecosistemas |
| forestr. | ecosystem diversity | diversidad ecosistémica |
| UN, ecol. | ecosystem diversity | diversidad de los ecosistemas |
| UN, ecol. | ecosystem dysfunction | disfunción de un ecosistema |
| UN | ecosystem integrity | integridad de los ecosistemas |
| forestr. | ecosystem management | manejo de ecosistemas |
| forestr. | ecosystem management | gestión del ecosistema |
| environ. | ecosystem moved away from equilibrium | ecosistema que se aparta del equilibrio |
| law | ecosystem preservation | conservación del ecosistema |
| environ. | ecosystem research | investigación de ecosistema |
| environ. | ecosystem research Study of the ways in which plants, animals, and microbes interact with each other and with their physical environment and of the processes involving the circulation, transformation and accumulation of both matter, especially nutrient materials, and energy | investigación de ecosistema |
| environ. | ecosystem resilience | resiliencia de un ecosistema |
| environ. | ecosystem service | servicio ecosistémico |
| environ. | ecosystem type | tipos de ecosistema |
| environ. | ecosystem type Ecosystems can be classified according to various criteria: from the point of view of energy source, two major types of ecosystems can be distinguished. Autotrophic ecosystems have primary producers as a principal component and sunlight has the major initial energy source; etherotrophic ecosystems depend upon preformed organic matter that is imported from autotrophic ecosystems elsewhere. Ecosystems can also be classified in terrestrial, marine and freshwater | tipos de ecosistema |
| UN | ecosystems approach | enfoque ecosistémico |
| UN | ecosystems approach | método ecosistémico |
| nat.sc. | Ellemberg's classification of world ecosystems | clasificación de los ecosistemas mundiales de Ellemberg |
| environ. | estuarine ecosystem | ecosistema de estuarios |
| org.name. | European Forest Ecosystem Research Network | Red Europea de Investigación sobre Ecosistemas Forestales |
| life.sc. | European Global Ocean Ecosystem Dynamics Science Plan | plan científico EUROGLOBEC |
| org.name. | Expert Consultation on Economic and Social Components of Ecosystem Based Fisheries Management | Consulta de expertos sobre componentes económicos y sociales de la gestión pesquera basada en el ecosistema |
| org.name. | Expert Consultation on Ecosystem-based Fisheries Management | Consulta de expertos sobre la ordenación pesquera basada en el ecosistema |
| org.name. | Expert Consultation on Interactions between Sea Turtles and Fisheries within an Ecosystem Context | Consulta de expertos sobre interacciones entre las tortugas marinas y las pesquerías en un contexto ecosistémico |
| org.name. | FAO/Netherlands International Conference on Water for Food and Ecosystems: Make it Happen | Conferencia Internacional FAO/Países Bajos sobre el agua en relación con los alimentos y los ecosistemas: adopción de medidas concretas |
| meteorol. | fire dependent ecosystem | ecosistema dependiente del fuego |
| environ. | flowing-water ecosystem | ecosistema lótico |
| life.sc. | flowing-water ecosystem | ecosistema de las aguas fluentes |
| environ. | fluvial ecosystem | ecosistema fluvial |
| health. | forest ecosystem | ecosistema forestal |
| environ. | forest ecosystem Any forest environment, in which plants and animals interact with the chemical and physical features of the environment, in which they live | ecosistema forestal |
| nat.sc., environ. | forest ecosystems | ecosistemas forestales |
| environ. | freshwater ecosystem | ecosistema de agua dulce |
| environ. | freshwater ecosystem | ecosistemas de agua dulce |
| environ. | freshwater ecosystem The living organisms and nonliving materials of an inland aquatic environment | ecosistema de agua dulce |
| UN, clim. | Global Change and Terrestrial Ecosystems | proyecto sobre Cambios Mundiales y los Ecosistemas Terrestres |
| environ. | Global Change and Terrestrial Ecosystems | Ecosistemas terrestres y cambio mundial |
| forestr. | global ecosystem | ecosistema mundial |
| UN, clim. | Global ocean ecosystems dynamics research and monitoring | Investigación y vigilancia mundial de la dinámica de los ecosistemas oceánicos |
| environ. | grassland ecosystem | ecosistema de pastizal |
| environ. | grassland ecosystem The interacting system of the biological communities located in biomes characterized by the dominance of indigenous grasses, grasslike plants and forbs, and their non-living environmental surroundings | ecosistema de pastizal |
| polit. | Group for Study and Defense of Ecosystems of the Lower and Middle Amazon Region | Grupo de Estudio y Defensa de los Ecosistemas de la Región Baja y Media del Amazonas |
| org.name. | Group of Specialists on the Southern Ocean Ecosystem | Grupo de Especialistas en Ecosistemas del Mar Austral |
| UN, ecol. | heterogeneity in the dryland ecosystems | heterogeneidad en los ecosistemas de las tierras secas |
| environ. | highland ecosystem | ecosistema de altiplano |
| environ. | highland ecosystem The interacting systems of the biological communities and their non-living surroundings in regions of relatively high elevation, typically characterized by decreased air pressure and temperature, reduced oxygen availability and increased isolation | ecosistema de altiplano |
| UN, biol., sec.sys. | integrated ecosystem assessment | evaluación integrada de los ecosistemas |
| UN, biol., sec.sys. | integrated ecosystem assessment | evaluación integral de los efectos en el medio ambiente |
| environ. | integrated ecosystem assessment | evaluación integrada de ecosistemas |
| environ. | integrated ecosystem management | gestión integrada de ecosistemas |
| environ. | Intergovernmental Science-Policy Platform on Biodiversity and Ecosystem Services | plataforma intergubernamental científico-normativa sobre diversidad biológica y servicios de los ecosistemas |
| org.name. | International Symposium on the Effects of Introductions and Transfers of Aquatic Species on Resources and Ecosystems | Simposio internacional sobre los efectos de las introducciones y transferencias de especies acuáticas sobre los recursos y los ecosistemas |
| environ. | internationally important ecosystem | ecosistemas de importancia internacional |
| environ. | internationally important ecosystem Ecosystems whose importance is recognised at international level and which are, in some cases, protected by international conventions | ecosistemas de importancia internacional |
| environ. | intertidal ecosystem | ecosistema intersticial |
| environ. | island ecosystem | ecosistemas insulares |
| environ. | island ecosystem Unique but fragile and vulnerable ecosystems due to the fact that the evolution of their flora and fauna has taken place in relative isolation. Many remote islands have some of the most unique flora in the world; some have species of plants and animals that are not found anywhere else, which have evolved in a specialized way, sheltered from the fierce competition that species face on mainland | ecosistemas insulares |
| gen. | laboratory and aquaria studies simulated closed ecosystems | estudios en laboratorio y en acuario con simulación de ecosistemas cerrados |
| environ. | large marine ecosystem | gran ecosistema marino |
| environ. | lenitic ecosystem | ecosistema léntico |
| environ. | lenitic ecosystem | ecosistema lenítico |
| environ. | lotic ecosystem | ecosistema lótico |
| life.sc. | lotic ecosystem | ecosistema de las aguas fluentes |
| UN, clim. | Managed forests, lands, ecosystems | bosques, tierras, ecosistemas gestionados (explotados) |
| UN, biol., sec.sys. | Managing Shared Waters - Towards Sustainable Transboundary Coastal Ecosystems | Ordenación de las aguas compartidas de los ecosistemas costeros transfronterizos |
| environ. | marine ecosystem Any marine environment, from pond to ocean, in which plants and animals interact with the chemical and physical features of the environment | ecosistemas marinos |
| environ. | marine ecosystem | ecosistemas marinos |
| econ. | marine ecosystem | ecosistema marino |
| biotechn. | microbiological ecosystem | ecosistema microbiológico |
| UN, ecol. | Millennium Ecosystem Assessment | Evaluación de los Ecosistemas al iniciarse el Milenio |
| UN, biol., sec.sys. | Millennium Ecosystem Assessment | Evaluación de los Ecosistemas del Milenio |
| environ. | Millennium Ecosystem Assessment | evaluación de ecosistemas para el milenio |
| org.name. | Ministerial Conference on Dense and Humid Forest Ecosystems of Central Africa | Conferencia sobre Ecosistemas de Bosque Húmedo y Denso de África Central |
| environ. | mountain ecosystem | ecosistema de montaña |
| environ. | mountain ecosystem Ecosystems found on high-mountains at low latitudes. Mountain ecosystems are very vulnerable. They are increasingly sensitive to soil erosion, landslide and rapid loss of habitat and genetic diversity. Widespread poverty and an increase in the numbers of mountain inhabitants lead to deforestation, cultivation of marginal lands, excessive livestock grazing, loss of biomass cover and other forms of environmental degradation. Because little is known about mountain ecosystems, Agenda 21 has proposed the establishment of a global mountain database. This is essential for the launch of programmes that would contribute to the sustainable development of mountain ecosystems. The proposals also focus on promoting watershed development and alternative employment for people whose livelihoods are linked to practices that degrade mountains | ecosistema de montaña |
| UN, ecol. | mountain ecosystems | ecosistemas de montaña |
| environ. | natural or managed ecosystems | ecosistemas naturales u objeto de ordenación |
| UN | Operational Programme for Integrated Ecosystem Management | Programa operacional para la ordenación integrada de los ecosistemas |
| nat.sc. | over-fertilization of aquatic ecosystem | superfertilización del sistema acuático |
| environ. | over-fertilization of the aquatic ecosystem | superfertilización del ecosistema acuático |
| environ. | permafrost ecosystem | ecosistema de gelisuelo |
| environ. | permafrost ecosystem The interacting system of the biological communities and their nonliving environmental surroundings in a climatic region where the subsoil is perennially frozen | ecosistema de gelisuelo |
| nat.sc., life.sc. | physics of coastal ecosystems | física de los ecosistemas costeros |
| environ. | polar ecosystem | ecosistema polar |
| environ. | polar ecosystem The interacting systems of the biological communities and their nonliving environmental surroundings located in the regions where the air temperature is perennially below 10° Celsius, usually at and near the North and South Poles | ecosistema polar |
| genet. | primary agro-ecosystem | agroecosistema primario |
| environ. | project Entangled Sulphur and CArbon cycles in Phaeocystis-denominated Ecosystems | proyecto sobre Ciclos entrecruzados del azufre y el carbono en los ecosistemas con predominio de Phaeocystis |
| anim.husb. | range ecosystem | ecosistema de pastoreo |
| environ., fish.farm., UN | Reykjavik Conference on Responsible Fisheries in the Marine Ecosystem | Conferencia de Reykjavik sobre la pesca responsable en el ecosistema marino |
| org.name. | Reykjavik Declaration on Responsible Fisheries in the Marine Ecosystem | Declaración de Reykjavik |
| org.name. | Reykjavik Declaration on Responsible Fisheries in the Marine Ecosystem | Declaración de Reykjavik sobre la Pesca Responsable en el Ecosistema Marino |
| nat.sc., environ. | river margin ecosystem | ecosistema de las márgenes de los ríos |
| UN, biol., sec.sys. | Second ad hoc intergovernmental and multi-stakeholder meeting on an intergovernmental science-policy platform on biodiversity and ecosystem services | Segunda reunión especial a nivel intergubernamental y de múltiples interesados directos sobre una plataforma intergubernamental científico-normativa sobre diversidad biológica y servicios de los ecosistemas |
| environ. | semi-arid land ecosystem | ecosistemas semiáridos |
| environ. | semi-arid land ecosystem The interacting system of a biological community and its non-living environmental surroundings in regions that have between 10 to 20 inches of rainfall and are capable of sustaining some grasses and shrubs but not woodland | ecosistemas semiáridos |
| environ. | semi-natural ecosystem | ecosistema seminatural |
| environ. | speleological ecosystem | ecosistema espeleológico |
| environ., agric. | stable forest ecosystem | ecosistema forestal estable |
| org.name. | Strengthening Capacity for Integrated Ecosystem Management | Fortalecimiento de la capacidad para la gestión integrada de ecosistemas |
| nat.sc. | studies on the cycling of radionuclides within the ecosystem | estudiar los ecociclos de los radionúclidos |
| org.name. | Sub-Committee on Marine Environment and Ecosystems | Subcomité sobre Medio Ambiente y Ecosistemas Marinos |
| environ. | subtidal ecosystem | ecosistema de la zona sublitoral |
| environ. | subtropical ecosystem | ecosistema subtropical |
| environ. | subtropical ecosystem The interacting system of a biological community and its non-living environmental surroundings in regions bordering on the tropics or the regions between tropical and temperate zones | ecosistema subtropical |
| econ. | sustainable agro-ecosystem | agroecosistema sostenible |
| environ. | temperate ecosystem | ecosistema templado |
| environ. | temperate ecosystem The interacting system of a biological community and its non-living environmental surroundings in regions of or related to moderate climates, intermediate between tropical and polar zones and having distinct warm to hot summer seasons and cool to cold winter seasons | ecosistema templado |
| commun. | temporal evolution of a tropical ecosystem | evolución temporal de un ecosistema tropical |
| econ. | terrestrial ecosystem | ecosistema terrestre |
| environ. | terrestrial ecosystem Any terrestrial environment, from small to large, in which plants and animals interact with the chemical and physical features of the environment | ecosistema terrestre |
| life.sc., environ. | terrestrial ecosystem | bioma |
| org.name. | Terrestrial Ecosystem Monitoring Sites | Lugares de seguimiento de ecosistemas terrestres |
| UN | Terrestrial Ecosystems Branch | Subdivisión de Ecosistemas Terrestres |
| nat.sc. | the community, also known as the biotic community, is the living component of the ecosystem | la comunidad, denominada también comunidad biótica, es el componente vivo del ecosistema |
| econ., environ. | The Economics of Ecosystems and Biodiversity | La Economía de los Ecosistemas y la Biodiversidad |
| environ. | transboundary aquatic ecosystems | ecosistemas acuáticos transfronterizos |
| nat.sc., life.sc. | transport corridor between ecosystems | corredor de conexión entre ecosistemas |
| environ. | tropical ecosystem | ecosistema tropical |
| environ. | tropical ecosystem The interacting system of a biological community and its non-living environmental surroundings in the land and water of the equatorial region between the Tropic of Cancer and the Tropic of Capricorn | ecosistema tropical |
| commun., environ., polit. | Tropical Ecosystem Environment Observations by Satellites | observación del medio ambiente y ecosistema tropical mediante satélite |
| commun., environ., polit. | Tropical Ecosystem Environment Observations by Satellites | Observación por Satélites del Medio Ambiente del Ecosistema Tropical |
| environ. | tropical forest ecosystem | ecosistema de bosque tropical |
| environ. | tropical forest ecosystem The interacting system of a biological community and its non-living environmental surroundings in forests found in tropical regions near the equator, which are characterized by warm to hot weather and abundant rainfall | ecosistema de bosque tropical |
| UN | UNESCO/UNEP/FAO Study on the State of Knowledge of Tropical Forest Ecosystems | Estudio UNESCO/PNUMA/FAO sobre el estado de los conocimientos acerca de los ecosistemas forestales tropicales |
| environ. | urban ecosystem | ecosistemas urbanos |
| environ. | urban ecosystem Towns and cities viewed as ecosystems, having an input of matter and energy, recycling within the system, and an output of matter and energy into the surroundings | ecosistemas urbanos |
| environ. | valued ecosystem component | componente valorado del ecosistema |
| environ. | valued ecosystem component An appraised, evaluated or estimated element or ingredient of a biological community and its non-living environmental surroundings | componente valorado del ecosistema |
| water.res. | water dependent ecosystem | ecosistema dependiente del agua |
| environ. | water ecosystem | hidroecosistema |
| life.sc. | water ecosystem | ecosistema acuático |
| environ. | wetlands ecosystem | ecosistemas de ciénagas |
| environ. | wetlands ecosystem Ecosystems of areas largely inundated with water but offering elevated lands as a habitat for wildlife. This areas include swamps, both seasonal and permanent, marsh, open fresh water, shallow saline lagoons, the estuaries of rivers, floodplains and coastal sand dunes. They provide food, breeding grounds, water and sanctuary for many forms of fish, birds and other animal and plant life. They are among the most productive ecosystems producing timber, peat moss and crops such as rice and a variety of berries | ecosistemas de ciénagas |
| environ. | woodland ecosystem | ecosistema de bosque |
| environ. | woodland ecosystem The interacting system of a biological community and its non-living environmental surroundings in wooded areas or land areas covered with trees and shrubs | ecosistema de bosque |
| org.name. | Working Group on Indicators of Marine Ecosystem Health | Grupo de Trabajo sobre Indicadores de Salud de los Ecosistemas |
| org.name. | Working Group on the Ecosystem of the Black Sea | Grupo de Trabajo sobre el Ecosistema del Mar Negro |
| org.name. | Workshop for Ecoregional/Ecosystem Assessment and Management of Sustainable Inland Fish Inland Fisheries and Aquaculture Production | Taller para la evaluación y gestión ecorregional/del ecosistema para la producción pesquera pesca y acuicultura continental sostenible |
| org.name. | Workshop on the Legal Régime for Living Resources in Large-scale Marine Ecosystems | Curso práctico sobre el régimen jurídico aplicable a los recursos biológicos de los grandes ecosistemas marinos |