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Ecology Part II

QuestionAnswer
population members of the same species in the same area
community 2 or more populations in the same area
ecosystem populations + their physical environment
births and immigration 2 things that increase population size
deaths and emigration 2 things that decrease population size
exponential growth growth pattern where the larger size, the faster it grows "J-shaped curve"
logistic growth growth pattern where growth slows and stops ; "S-shaped curve"
clumped distribution distribution pattern where individuals live close together
uniform distribution distribution pattern where individuals are evenly spaced out
sun ultimate source of energy on Earth
producer/autotroph organisms that make their own food
consumer/heterotroph organisms that must eat their food
primary succession succession that happens with NO SOIL
secondary succession succession that happens WITH SOIL
carrying capacity the max amount of individuals an ecosystem can support (k)
density dependent limiting factors limiting factors that depend on population size [food supply, spread of disease]
density independent limiting factors limiting factors that DO NOT depend on population size [abiotic factors, natural disasters]
habitat where an organism lives
competitive exclusion principle states that 2 species cannot exist in same niche and same habitat at same time
indicator species species that measures the overall health of ecosystem
invasive species non-native species that has no predators that harms an ecosystem and native species
keystone species species that are very important in keeping ecosystem stable
niche what an organism does to grow and survive where it live
disturbance anything that can lead to the process of succession (natural or human-caused)
interspecific competition competing for resources by members of different species
intraspecific competition competing for resources by members of the same species
commensalism one benefits + other unaffected
mutualism both benefit
predation one benefits + one is hunted and killed
parasitism one benefits + one is harmed
Created by: cadetjt
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