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13 Cards in this Set

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What are the different population interactions?
Neutral, Mutualism, Commensalism, Competition, Predation, Parasitism, Parasitoidism.
According to Biological Structure, when a single or few species predominate within a community, these organisms are called?
Dominants.
This species controls the nature of the community and must be regarded as the dominant species.
Keystone Species.
By taking a sample of the species in a community and determine the percentage each contributes to the total number, we can determine what?
Relative Abundance.
What does species diversity relate to?
Species Richness (number) and Species Eveness (how individuals are apportioned).
A discriptive diagram using a series of arrows to depict one species to another for which it is a food source.
Food chain.
A discriptive diagram involving numerous food chains meshed into a complex depiction.
Food web.
What determines the vertical structure on land?
The life form of the plants.
What determines the vertical structure of aquatic ecosystems?
Light penetration.
Changes in the physical and biological structure of communities as you move across the landscape are refered to as?
Zonation.
Gradual directional change in the structure of the community through time (temporal) from field to forest?
Succession.
What type of succession occurs on a site previously unoccupied.
Primary.
What type of succession occurs on a previously occupied site?
Secondary.