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Ecosystems Vocab
ECOLOGY - Ecosystem organization
| Question | Answer |
|---|---|
| Abiotic features | The non-living/never living NATURAL parts of an ecosystem. |
| Population | All of a given species in a given area. |
| Biotic | The living or once living parts of the environment. |
| Ecology | The study of living things in their natural environment. |
| Ecosystem | All of the living and non-living parts of an environment that depend on each other. |
| Ecological Succession | The process of change in an ecological community over time. (pond dries up & becomes a field which eventually becomes a forest, lichen breaks down rock to soil for plants) |
| Species | Like members of a group that can mate and produce fertile offspring (the babies can have babies, too). |
| Community | All of the populations (individual species) in an area. The living/once living (biotic) parts of the ecosystem. |
| Population | A group of the same species in a community (a group of mountain lions in a forest) |
| Organism | A form of life, a living creature. Examples: human, squirrel, apple tree, mushroom, shark, jellyfish, bacteria, earthworm, algae, etc. |
| Environment | The surroundings (both living and non-living) |
| Interdependence | A relationship where both things depend on one another, or affect one another. |
| Symbiosis | Any relationship between 2 species (can be helpful or harmful). Can be classified as mutualism (helps both species), commensalism (helps one & does not harm other) or parasitism (helps one while harming the other species – like a tick on a dog) |
| Competition | When various organisms struggle for a limited supply of resources in an ecosystem. |
| Limiting Factors | Anything that restricts the number of organisms that can live in an ecosystem (amount of food, predators, living space, natural disasters, etc.) |
| Scavenger | An organism that feeds on dead plants or dead animals. |
| Resources | Things in the environment that are necessary for survival (food, air, shelter, water, a mate, etc.) |
| Biodiversity | All the different types of living organisms in an ecosystem. The greater the variety (amount of different species) the more stable the ecosystem will be. |
| climax community | The way that all the living things in an ecosystem has changed over many years to become very stable. An old growth forest is a climax community. |
| overpopulation | Too many of a species living in an area with not enough resources. |
| carrying capacity | the maximum population of a certain species that can be supported by the resources in an environment. population usually goes up until it reaches this level. limiting factors will reduce this. |