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| Pregunta | Respuesta |
| Biomass | The total amount of organic matter |
| Biome | A major terrestrial ecosystem of the world |
| Ecosystem | A system of which both the living organisms and their environment form components-these components are linked together by flows and are seperated from the outside by a boundary |
| Succession | The gradual and predictable change in plant and animal species over time, for example bare ground is colonised by plants and there is a series of sequential replacements as one set of dominant plants replaces the other |
| Biotic | Living components of an ecosystem |
| Abiotic | The non-living parts of an ecosystem |
| Goods and services | Goods are direct products that can be derived from an ecosystem and services are the benefits that the ecosystem provides |
| Energy flow | The movement of energy through a community |
| Nutrient cycle | The movement of nutrients in the ecosystem between the three major stores of the soil, biomass and litter |
| Biodiversity | The variability amongst living organisms from all sources uncluding terrestrial, marine and other aquatic systems, and the ecological complexes of which they are part: this includes diversity within a species, between species and of ecosystems |
| Conservation | The protection of natural or man made resources for later use |
| Habitat | The place where a particular species lives or grows |
| Trophic level | A position in the food chain, determined by the number of energy transfer steps to that level |
| Endemic species | Exclusively native to a particular place of a region-they tend to have high conservation value |
| Sustainable yield | It represents the safe level of harvest that can be hunted/caught'utilised without harming the individual ecosystem |
| Genetic diversity | The diversity of genes found within a species |
| Species diversity | The variety of plant/animal species in a given area |
| Ecosystem disparity | The variety of different ecosystems and habitats surrounding them in a given area |
| Biodiversity hotspot | An area containing a huge number of species, a large percentage of which are endemic |
| World Resources Institute (WRI) | An economic scorecard which shows the condition of the world's major ecosystemsand their ability to provide future goods and services |
| Millennium Ecosystem Assessment (MEA) | A multi scale assessment comissioned by the UN |
| Destruction | Loss in quantity |
| Degradation | Loss in quality |
| Restoration | Recreating wetlands and improving conservation in derelict sites |
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