exam 5

trophic cascade

Changes at one trophic level affect multiple levels

specie richness

total number of specie within an area

genetic diversity

total variety of gene within a single specie

endemic specie

specie that occur here and nowhere else in the world

ecosystem diversity

total number of ecosystem in the region

invasive specie

specie introduced outside their native range

disturbance ecology

event that changes community structure

community dynamic

communities change over time

amensalism

one is harmed while one is unaffected

mutualism

both specie benifit

parasitism

one benifit while one is harmed

commensalism

one benifit while the other if unaffected

predation

one organsim consume another

coevolution

Two species evolving in response to each other

Intraspecific

Same species

Interspecific

Different species

parasitism

parasite benifit,host harmed

predation

predator benifit,prey killed

competition

both lose due to resource sharing

fundamental niche

potential range of conditions

realized niche

actual range occupied

habitat

the physical enviroment in which an organism lives

niche

the functional role of the organism within its habitat

ecological niche

the role a specie plays in its enviroment

specie richness

number of specie present

specie abundance

number of individual of each specie

population

one specie

community

multiple specie

specie diversity

number of specie and relative abundance

primary succession

start from bare rock

secondary succession

start from disrupted existing