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38 Cards in this Set

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factors that influnce biotic potential?
-age of first reproduction
-frequency of reproduction
-average number of offspring per reproduction
-length of organisms reproducing life span
-death rate
exponential growth
result from biotic potential
how do 2 population sizes change?
births, deaths, migration(immigration/emmigration)
environmental resistance
equal limits opposing max growth ex: availability of food, availability of space, competition w/ other organisms, climate, interaction amoung species
biotic potential
equal max rate in which population could increase
population
all members of a particular species that live w/ in an ecosystem and can potentially interbreed
ecology
study of interrelationships of living things and non-living environment
exponential growth
result from biotic potential
equalibrium
equal birth rate balanced by equal death rate; pop size is stabalized
carrying capacity
equal max pop size that ecosystem can sustain
age structures
-pre reproductive
-reproductive
-post reproductive
US population
-300,000,000 ppl
-fastest growing developed country
-immigration large factor
community
all populations that live in a habitat
habitat
place where individual species normally live
niche
equal sum of activites and relationships which it engages to secure and use the resources necessary for its survival and reproduction
succession
equal process of communitu development
primary succession
new land
secondary succession
development on land that has already been inhabited by but has a disturbance
predation
predator and prey
competition
interspecific & intraspecific
interspecific
competition w/in species
intraspecific
competition b/t species
symbiosis
living together
types of symbiosis?
parasitism, commensalism, mutualism
community instability?
-long term shifts in climate
-introduction of new species
-human interaction
exotics?
not native to the community
ecosystem
community of organisms both biotic and abiotic
primary?
herbivores & omnivores
secondary?
carnivores & omnivores
tertiary
herbivores, carnivores, omnivores
consumers?
primary, secondary, tertiary
herbivore
plant eater
omnivore
plant and meat eater
carnivore
meat eater
food chain
straight line sequence of steps by which energy stored in autotroph tissues passes onto higher tropic levels
food web
connections of food chains in an ecosystem
biosphere?
earth, all places inhabited by organisms
climactic influences
-latitude
-elevation
-landforms
-air circulation patterns
-oceans/bodies of water