Exam 1 Flashcards
Iteroparous
Repeated reproduction in 2+ age classes
Semelparous
Reproduction in one age class
Type 3 survivorship curve
Many offspring, few live to adulthood (bugs/plants)
Type 2 Surviorship Curve
Middle of the rode, even number of births and deaths (birds)
Type 1 Survivorship Curve
Low amount of offspring, but many live long lives (Humans, Elephants)
Null hypothesis
There is no significant difference between specified populations, any observed difference being due to sampling or experimental error.
Density Dependence
Change in birth/death rate as a result of the population.
Type 1 statistical error
Failing to reject a false null hypothesis
Type 2 Statistical error
Accidentally rejecting a true hypothesis
Assumptions for the logistic growth model
No I or E
No Genetic Structure
No age or size structure
Continuous growth with no time lags
Constant K (Implies density dependence)
Assumptions for Exponential Growth
No I or E
No genetic structure
No age or size structure
Continuous Growth with no time lags
Constant b and d (unlimited resources)
K-Selection
Favors those who have less offspring, but live longer lives. (type 1)
r-selection
Favors those who have LOTS of offspring, but live shorter lives/only few live.
Tragedy of The Commons
a situation in which individuals with access to a public resource (also called a common) act in their own interest and, in doing so, ultimately deplete the resource.
Paradigm
a pattern or model of something
