Lecture 31 Flashcards
Continuous Growth
-Nt = No e^rt
Life History
-how an organism allocates resources to growth, reproduction and activities or structures related to survival
Type 1 Curve: Convex
-survivorship is high when you are young and once you get older the survivorship drops
Type 2 Curve: Constant
-don’t know when you are going to die, generally survivorship is higher when your younger
Type 3 Curve: Concave
-survivorship is low when they are young, gets better with age
Survivorship Curves
relate to how an organism should partition energy into various aspects of life
Maturity
age at first reproduction
Parity
number of episodes of reproduction
Fecundity
number of offspring produced per reproductive episode
Termination of Life
senescence and programmed death
Semelparity
one episode, multiple offspring produced but parents die
Iteroparity
-multiple episodes throughout their lives
R selected environment
- unstable
- density independent
R selected Characteristics
- usually small
- high fecundity
- low quality young
- little parental investment
- reproduce early
- short life span
K selected Environment
- stable
- density dependent
