Summary Life Science IEB Population and Community Ecology
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Course
Life Sciences
Institution
12th Grade
Flashcards that have been used to summarize exactly what you need to know according to the SAGS document. These flashcards will help you through any test, assessment or exam and will help you become prepared for any question that you may need to answer.
Ecology
What is an individual? Population? Community?
Ecosystem? Biome? Biosphere?
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Ecology- interactions of organisms with their physical and biological environments
Individual- a single organism capable of independent existence
Population - many individuals of the same species that occupy the same area and breed freely
Community - many populations that inhabit and interact in an area
Ecosystem - abiotic and biotic factors interacting within an area
Biome - similar climate and similar species
Biosphere - zone of life on earth (Part of Earth where living organisms are found)
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Ecology
What are the population parameters? What is a
closed population?
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Natality - birth rate
Immigration - individual’s moving IN to a population trapsize
Mortality - death rate
Emigration - individuals who EXIT a population
Jt Popsize
A closed population is one in which no emigration or immigration occurs. Only death and birth can influence such a population and only parameters affecting any change
in population numbers.
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