click below
click below
Normal Size Small Size show me how
Ecology
| Term | Definition |
|---|---|
| Ecology | Study of the interaction of organisms and their environment |
| Biosphere | The part of the planet containing living organisms |
| Ecosystem | A group of clearly distinguished organisms that interact with their environment as a unit |
| Habitat | Place where plants or animals live |
| Population | All the members of the same species living in an area |
| Community | All the different populations in an area |
| Abiotic factors | Non-living factors |
| Biotic factors | Living factors |
| Climate factors | Weather over a long period of time |
| Edaphic factors | Relate to soil |
| Flora | All the plants in the ecosystem |
| Fauna | All the animals in the ecosystem |
| Producers | Organisms that carry out photosynthesis |
| Consumers | Organisms that take food from other organisms |
| Decomposers | Organisms that feed on dead organic matter |
| Detritus feeders | Organisms that feed on small pieces of dead organic matter |
| Trophic level | Feeding stages in a food chain |
| Grazing food chain | A sequence of organisms in which each one is eaten by the next member in the food chain |
| Food web | Consists of two or more interlinked food chains |
| Pyramid of numbers | Represents the number of organisms at each trophic level in a food chain |
| Niche | The functional rode an organism plays in its community |
| Nutrient recycling | The way in which elements are exchanged between the living and non-living components of an ecosystem |
| Pollution | Any harmful additions to the environment |
| Pollutants | Harmful additions to the environment |
| Conservation | The wise management of existing natural resources in an ecosystem, in order to maintain a wide range of habitats and prevent the death and extinction of organisms |