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Chapter 4 - Coggle Diagram
Chapter 4
R
size:smaller
lifespan: short
Age of reproduction: younger
number of offspring: many
parental care: less
fish is R
K
Size: larger
lifespan: longer
age of reproduction: older
number of offspring: few
parental care: more
deer is k
ecologists analyze populations with models
population growth curves: 1. constant 2. exponential 3. logistic
Population growth slowing after a large increase
reduced food access, spreading of disease, increase in predation
biotic potential: number of offspring under ideal conditions
reproduction rate, ability to migrate, defense mechanisms
If species survives through early growth stages, recruited into breeding population
Environment Resistance: biotic vs abiotic factors cause mortality and limit population increase
Lack of water, lack of habitat, lack of food, predators
Survivorship patterns
type 1, type 2, type 3
limits on population
density
bottom up
top down
predation
community interactions