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14 Cards in this Set
- Front
- Back
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Primary Succession
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Starts from bare rock.
May take thousands of years Volcanic eruptions, glaciers melt, newly exposed rock, severe erosion The first species to populate an area are called “pioneer species” – often lichens As they grow they change the environment Breaking up rock Adding organic matter Collecting dust |
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Commensalism
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– one benefits while the relationship is neutral for the other
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Lichen
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an example of mutualism
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Community Interactions
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Predation Symbiosis – Commensalism Parasitism
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Mutualism
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– both species benefit from the relationship
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Parasitism
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one benefits while the other is harmed by the relationship
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Symbiosis
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Symbiosis – “together living”. Any relationship where two organisms live closely together
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Predation
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– one organism captures and feeds on another organism. The killer is the predator while the killee is the prey
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Abiotic Factors
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includes both biotic factors (living neighbors) and abiotic factors (nonliving factors such as climate (precipitation and temperature).
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and Biotic Factors
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Habitat includes both biotic factors (living neighbors)
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Habitat
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includes sources of food, water, nutrients, and shelter
Abiotic Biotic |
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Ecological address
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where an organism lives
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Yield
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is limited by a lack of N – limiting nutrient
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Ecological Pyramids
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Energ Biomass numbers
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