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Eco Evo Exam3(c.16)
Definitions
Term | Definition |
---|---|
Intraspecific competition | Competition among individuals of the same species. |
Interspecific competition | Competition among individuals of different species. |
Resource | Anything an organism consumes or uses that causes an increase in the growth rate of a population when it becomes more available. |
Renewable resources | Resources that are constantly regenerated. |
Nonrenewable resources | Resources that are not regenerated. |
Liebig's law of the minimum | Law stating that a population increases until the supply of the most limiting resource prevents it from increasing further. |
Competitive exclusion prenciple | The principle that two species cannot coexist indefinitely when they are both limited by the same resource. |
Competitive coefficients | Variables that convert between the number of individuals of one species and the number of individuals of the other species. |
Zero population growth isocline | Population sizes at which a population experiences zero growth. |
Exploitative competition | Competition in which individuals consume and drive down the abundance of a resource to a point that other individuals cannot persist. |
Interference competition | When competitors do not immediately consume resources but defend them. |
Allelopathy | A type of interference that occurs when organisms use chemicals to harm their competitors. |
Apparent competition | When two species have a negative effect on each other through an enemy--including a predator, parasite, or herbivore. |
Chi-square test | A statistical test that determines whether the number of observed events in different categories differs from an expected number of events, which is based on a particular hypothesis. |