Exam 2 Flashcards
How do the timescales of ecology and evolution differ?
Ecology uses a proximate time scale
Evolution uses an ultimate time scale
Bernard Kettlewell
Industrial melanism guy
Wilhelm Weinberg
Physician, Hardy-Weinberg principle
Godfrey Harold Hardy
Mathematician, Hardy-Weinberg Principle
What are life history traits?
- When an organism can reproduce
- How many times they can reproduce
- How many offspring they produce
- When they die
Maturity
Age at which an organism can reproduce
Parity
Number of times females give birth
Fecundity
The ability to make offspring
HIGH fecundity means you reproduce MANY times
LOW fecundity means you reproduce FEW times
Senescence
Dying
Semelparous
When an organism reproduces once in their lifetime
Iteroparous
When an organism reproduces many times and then dies
Precocious
Requires little/no parental care
(~pretentious, don’t care)
Altricial
Requires constant parental care
(~All the care)
What are r-strategists?
Organisms that produce many offspring, die quickly, not all offspring make it
What are K-strategists?
Produce few offspring, but have a better chance of surviving (often due to more parental investment)
transmission rate
disease movement between hosts
Pathogen
causes harm
virulence
population growth rate within host
rate of spread
rate of host migration and dispersal rate
Assumptions of the Disease Model
- Once infected, gain immunity
- immunity not passed onto offspring
- no immigration
- birth rate is the same for the three groups (x, y, z)
Who is Karen Lips
Worked on fungus pathogen transmission in amphibians (mostly frogs) in Panama
