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What are the types of species competition?
Intraspecific - Amongst individuals of the same species.
Interspecific - Amongst individuals of different species.
What is Leibigs law of the minimum?
It states that a population increases until the supply of the most limiting resource prevents it from increasing further.
What is the competitive exclusion principle?
When two species cannot coexist indefinitely as they are both limited by the same resource.
What are competition coefficients?
Variables that convert between number of individuals of one species and the number of individuals of another species.
What ways competitors gain advantages over each other?
Exploitative - in which individuals consume and drive down the abundance of a resource to a point that other individuals cannot persist.
Interference - when individuals defend resources.
Apparent - when two species have a negative effect on each other through an enemy e.g., a predator or parasite.
Define allelopathy.
A type of interference that occurs when organisms use chemicals to harm their competitors.
What are ecosystems often categorized by?
The dominant organisms within them or there physical conditions that affect the distribution of species.
Define an ecotone.
A boundary created by sharp changes in environmental conditions over a short distance, this causes a major change in composition of species.
What are the types of community?
Interdependent - in which species depend on each other to exist.
Independent - in which species do not depend on each other to exist.
What is a guild?
Within a given trophic level some groups of species rely on similar food.
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