Group of conspecific individuals who interact with one anotherat a given time and a specific area.
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Define Ecology?
The study of how an organism reacts with its environment.
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Define population ecology?
Studies how populations interact with the environment and their dynamics
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Define population dynamics?
Patterns and change in a population.
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Population density definition?
Number of individuals per unit of area/volume.
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Define dispersion pattern?
Spatial distribution of individuals in the environment.
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What are the 3 examples of where a population may be measured in real life?
A farmer increasing the population of live stock, pest control methods reducing population. Maintaining constant population of endangered species.
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When would a full census be used?
When individuals are large and distinct enough and the population is small to study.
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Define sample?
Subset of individuals from a population studied to gain information on the whole population.
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Quadrats and transects are used for which type of organisms?
ones which do not move
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Which method would you use if the organism moves?
Mark recapture method.
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What are the steps for mark recapture
Catch the first sample and mark them, allow a reasonable amount of time to pass before catching a second sample. count the number of second sample and marked organism to calculate population estimate
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What is the mark recapture equation
N=N1XN2/M
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What are the factors limiting population growth? (Dependent factors)
Food supply, predators, pathogens
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What are the factors limiting growth? (Independent factors)
Extreme weather and abiotic factors
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Other cards in this set
Card 2
Front
Define Ecology?
Back
The study of how an organism reacts with its environment.
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