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16 Cards in this Set
- Front
- Back
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4 characteristics determining community structure
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appearance and species, species diversity, evenness, niche structure
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edge effects
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more edges causes more diversity, too many edges causes less population
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3 factors that effect biodiversity
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latitude and pollution
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Theory of islands biogeography
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immigration(in), emigration (out), size of the island, distance from the mainland, the number of species on a small islands there is less immigration and more extinction
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4 general types of species
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Native (native to the area) , Non Native (exotic or alien) , Indicator ( birds , ambians, they live in land and water) keytone (top predator)
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5 types of species interations
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interspecific competition ( multiple species) Intraspecific competion( same species) Interference competion( interfering with one orgaims to get to the source) exploitation, Competitive exclusion principle ( when one species competitively excludes another individual from getting to the source)
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3 types of symbiotic relationships
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Parasitism ( one person benefiting and the other is harmed) Mutualism (both benefiting) Commensalism (one benefiting but not harming the host)
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primary succession
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always happens on an area with no soil, after a volcanic explosion , lichen fungus but together moss , eventually making soil.
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Secondary succession
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do have soil but starign with nothing on the soil
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Pioneer species
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lichens moss, are soil makers
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Successional species
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early0 low growing grasses close to ground, mid - shrubs things with bigger roots, not enough for tree roots, late successional - thicker hard wood trees shaped taller
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Facilitation
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laying the ground work and making the ground work suitable for livin
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intermediate distubance hypothesis
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medium style disturbances create the most biodiversity.
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inertia
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resisting change
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contancy
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staying the same
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resilience
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able to bounce back to normal
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