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14 Cards in this Set

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Primary Succession
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
Commensalism
– one benefits while the relationship is neutral for the other
Lichen
an example of mutualism
Community Interactions
Predation Symbiosis – Commensalism Parasitism
Mutualism
– both species benefit from the relationship
Parasitism
one benefits while the other is harmed by the relationship
Symbiosis
Symbiosis – “together living”. Any relationship where two organisms live closely together
Predation
– one organism captures and feeds on another organism. The killer is the predator while the killee is the prey
Abiotic Factors
includes both biotic factors (living neighbors) and abiotic factors (nonliving factors such as climate (precipitation and temperature).
and Biotic Factors
Habitat includes both biotic factors (living neighbors)
Habitat
includes sources of food, water, nutrients, and shelter
Abiotic Biotic
Ecological address
where an organism lives
Yield
is limited by a lack of N – limiting nutrient
Ecological Pyramids
Energ Biomass numbers