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Population
key terms on population and interaction
| Term | Definition |
|---|---|
| Symbiosis | a close, long-term relationship between 2 or more species |
| Parasitism | one species lives on or within a host organism and receives nourishment from the host, whereas the host is harmed by the interaction. |
| Mutualism | interactions that are beneficial to the growth, survival, and/or reproduction of both interacting species. |
| commensalism | One species receives benefits from the association and the other species is unaffected |
| Predator-prey | It always results in the death of the prey and the absorption of the prey’s tissue through consumption. |
| ecosystem | a system of interactions and inter-relationships between the living and non-living components in an environment |
| organism | A single individual, such as one tree, one crow, or one bacteria |
| species | Closely related organisms that can breed and produce fertile offspring |
| population | A group of individuals of the same species living in a specific area |
| community | A group of populations that interact in a given environment These populations depend on one another for food, shelter, or other survival needs |
| diversity | The measure of the number of different species in an ecosystem. |
| abiotic factors | the nonliving parts of an ecosystem |
| biotic factors | the living parts of an ecosystem |
| carrying capacity | the maximum number of individuals (organism) that an area of land can support, usually determined by their food requirement |
| J-shaped graph | this graph shows a population experiencing an ideal growth pattern. There are no limiting factor and it describes growth of a species new to an ecosystem with no predators. |
| boom-bust graph | this graph shows an exponential growth of a species to a certain point which causes the population to decrease dramatically. |
| s-curve graph | a graph that shows a population that experiences exponential growth followed by a plateau due to limiting factors. When the graph plateau, it has reached its carrying capacity. |
| linear graph | a graph that shows constant growth or decline because birth rate equals death rate |
| limiting factor | an environmental factor that limits or slows the growth or activities of an organism |
| competition | the struggle between individuals of the same or different species for food, space, light, etc, when these are inadequate to supply the needs of all |
| Birth rate | The ratio of total live births to total population in a specified community or area over a specified period of tim |
| Death rate | The ratio of total deaths to total population in a specified community or area over a specified period of tim |
Created by:
nprincilus
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