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Terms in this set (26)
lifeless area where soil has not yet formed
Fist to colonize on primary succession areas
Occurs in area of past community been cleared by event but soil left intact.
Stable point of succession
onto of lake/pond
two species that is better off living together but can live apart
Two organisms that cannot live without eachother
One organism benefits the other without doing harm or helping the other organism
one organism benefits from another and the other is harmed. The longer the symbiosis the less likely the parasite will kill the host.
one species alter the environment in a way that affects another.
predators use mimicry to gan an advantage
unrelated distasteful species resemble one another
palatable species resemble brightly colored, distasteful species.
differential coloration makes an organism inconspicuous from different angles
Laws of thermodynamics
energy cannot be created of destroyed, all energy when changing forms looses some as heat.
Consumes organic material
Changes in one trophic level influences multiple other levels
top down effects
removal of top predator
bottom up effects
flow up a food chain
Most abundant and has the highest biomass
species that play a critical role in maintaining community composition
the entire set of conditions under which an organism can survive and reproduce
is the set of conditions actually used when interaction with other species are taken into account.
consists of biotic and abiotic requirements for an organism
the way an organism uses resources, how it fits into the community
geographical limit of available habitats for species
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