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| A group of organisms of the same species that live in a specific geographical area. |
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| Growth in which numbers increase by a certain factor in each successive time period. |
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| Population growth that starts with a minimum number of individuals and reaches a maximum depending on the carry capacity of the region. |
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The evolution of two or more species that is due to mutal influence, often in a way that make the relationship.
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| A relationship between two species in which one species, the parasite benefits from other species, the larger species which is harmed. |
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| A relationship between two different organisms that live in close associations with each other. |
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| A relationship between two organisms in which both species benefits. |
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| A relationship between two organisms in which one organism benefits and the other is unaffected. |
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| A unique position occupied by a species both interms of it's physical within an ecologiocal community. |
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| Largest ecological niche where an organism or species can live without competition. |
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| Range or resources the species uses the conditions that the species can tolerate and functional of competition in the species fundamental niche. |
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| The exclusion or one species by another due to competition. |
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| Aspecies that is critical to the functioning of the ecosystem in which it lives because it effects the survival an abadance of many other species. |
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| Factors that affect the population growth: |
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Definition
Abiotic: Nonliving factors.
Biotic: Living factors.
Historic growth: Growth of people over the years.
Science and tech: Medical advances and agriculture tech that helps the population grow. |
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| Population carrying capacity |
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Definition
| The largest population that an enviroment can support at any given time. |
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| density dependant factors |
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Definition
| Variables that affected by the number of organisums present in a given area. |
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| Density independant factors |
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Definition
| Variables that effect a populations regaurdless of the populations density (floods, fires) |
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Definition
Paratism: smaller organism affecting the larger organism.
Herivary: herbivores eat plants but don't kill them.
Commensalism: species benefits and the other is neither harmed or helped. |
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| Contributions to an ecosystem resiliency: |
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Definition
Predation: can reduce the effects of competition among speices
Biodiversity: communities with a higher biodiversity will recover from events more quickly. |
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| Comparing exponential and logistic growth: |
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Definition
Exponential: grows slowly when population is small but as it gets bigger the growth speeds up.
Logistic: when population is small growth rate is fast because plenty of resources as population reaches carrying capacity food becomes scarce. |
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