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Ecology
Ecological Relationships
| Term | Definition |
|---|---|
| Competition | The relationship between organisms in the same ecosystem fighting or competiting for limited resources, such as food, water, space, or mates. |
| Biodiversity | The abundance of living things in a particular ecosystem. |
| Symbiosis/Symbiotic Relationship | The relationship between at least two organisms in which at least one benefits. |
| Mutualism | The relationship between at least two organisms in which both benefit. |
| Parasitism | The relationship between at least two organisms in which one benefits and the other is harmed. |
| Commensalism | The relationship between at least two organisms in which one benefits and the other is unaffected. |
| Predation | The relationship between at least two organisms in which one hunts and kills the other for food. |
| Predator | The organism that is hunting it's prey for food. |
| Prey | The organism that is being hunted as food. |
| Adaptation | A characteristic that allows an organism to survive in it's environment, such as camouflage, having sharp teeth, or being able to run fast. |
| Organism | One individual of one species in a particular ecosystem. |
| Population | All of the organisms of the same species in a particular ecosystem. |
| Community | All of the differing populations of organisms living together in one ecosystem. |
| Ecosystem | All of the living and non-living parts of a particular area. |
| Endangered | A population of organisms whose number is so low that it is in danger of becoming extinct. |
| Extinct | A population of organisms that was once living but is not longer living. |
| Carbon Cycle | How carbon is cycled in the environment. Through photosynthesis & respiration. |
| Nitrogen Cycle | How nitrogen is cycled in the environment, helping plants to grow with the help of nitrogen fixing bacteria and bacteria that aid in the denitrification process. |
| Keystone species | a species that is vital to the environment. |
| Primary Succession | The creation of a new ecosystem where one has never existed before. Begins with pioneer species likes lichens and mosses, which create soil/dirt |
| Bioshphere | All of Earth's life supporting features. |
| Invasive species | A species that is not native to the area in which it is living. This can seriously damage the ecosystem. |
| Phosphorous Cycle | How phosphorous is cycled in the environment through weathering. |
| Secondary Succession | The rebuilding of an ecosystem after it has been lost as a result of human activity like logging/deforestation or after a natural disaster like a tornado or fire |
| Pioneer Species | The first species to grow and live in an new environment, like lichens and mosses, which help to create soil/dirt where there wasn't any before |
| Logistic Growth Curve | an s-shaped curved graph where the population growth rises until it meets it's carrying capacity, at which point it stabilizes or becomes constant |
| Exponential Growth Curve | a j-shaped graph where the population growth rises without stopping, this is a result of unlimited resources |
| Limiting Factors | factors in the environment that limit a populations growth |
| Density Dependent Limiting Factors | factors that limit a populations growth based on the population size. Ex: space, mates, food and water |
| Density Independent Limiting Factors | factors that limit a population's growth that DO NOT depend on the population size, typically abiotic factors like, fires, floods, tornados, or human activity |
Created by:
DrJMasterson
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