Populations, Ecosystems and Sampling
Unfinished but useful for definitions
- Created by: Molly Moo
- Created on: 27-12-12 14:45
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- Populations, Ecosystems and Sampling
- Key words and definitions
- Adaptation
- A feature that members of a species have that increases their chance of survival and reproduction
- Biotic
- The living features of an ecosystem
- Abiotic
- The non-living features of an ecosystem
- Niche
- Describes how an organism fits into the environment and its role, no two species occupy the same niche
- Habitat
- the place where an organism lives. Within one ecosystem there are many habitats
- Community
- All the populations of different organisms living and interacting in a particular place at the same time
- Population
- A group of interbreeding organisms of one species in a habitat
- Ecosystem
- All the organisms living in a particular area and all the abiotic factors
- Intraspecific Competition
- When organisms of the same species compete with each other for the same resources
- Interspecific Competition
- When organisms of different species compete with each other for the same resources
- Adaptation
- Equations
- Population Growth
- (births+immigration) - (deaths+emigration)
- Population Growth Rate
- (population change during the period)/(population change at the start of the period)×100
- Birth Rate
- (number of births per year)/(total population in the same year)×100
- Death rate
- (number of deaths per year)/(total population in the same year)×100
- Population Growth
- Sampling
- Random
- Stratified
- Transect
- Key words and definitions
- Habitat
- the place where an organism lives. Within one ecosystem there are many habitats
- Key words and definitions
- Adaptation
- A feature that members of a species have that increases their chance of survival and reproduction
- Biotic
- The living features of an ecosystem
- Abiotic
- The non-living features of an ecosystem
- Niche
- Describes how an organism fits into the environment and its role, no two species occupy the same niche
- Community
- All the populations of different organisms living and interacting in a particular place at the same time
- Population
- A group of interbreeding organisms of one species in a habitat
- Ecosystem
- All the organisms living in a particular area and all the abiotic factors
- Intraspecific Competition
- When organisms of the same species compete with each other for the same resources
- Interspecific Competition
- When organisms of different species compete with each other for the same resources
- Adaptation
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