Chapter 10 Life History Outline

Chapter 10 Life History Outline - Number of offspring is...

Info iconThis preview shows pages 1–4. Sign up to view the full content.

View Full Document Right Arrow Icon
Chapter 10 Life History and Evolutionary Fitness Life history Defined as the attributes of the schedule of an individual’s life Components Influenced by environmental factors Influenced by physiological processes Example: Birds at higher and lower altitudes Reproductive effort Defined as the time and energy allocated for reproduction More energy for offspring = less energy for growth and maintenance
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Semelparity o One major reproductive effort Iteroparity o repeated reproductive efforts over a lifetime Early maturation: Later maturation: Also limited by allocation energy Parental care o Altricial
Background image of page 2
o Precocial Food supply vs. production of young
Background image of page 3

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Background image of page 4
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: Number of offspring is dependent on abundance of available food Limited food can affect: Asynchronous hatching in birds Siblicide Reproductive Strategies r-strategists and K-strategists R-, C-, and S-strategists r-strategists o small body size o o o o exponential J-shaped population growth o o minimal parental care o o Examples : K-strategists o o o Long-lived o Lower number of offspring o o At or near carrying capacity o o o Examples: R-strategists o Ruderals S-strategists o Stress tolerators C-strategists o competitors...
View Full Document

This note was uploaded on 12/15/2010 for the course BIO 210 taught by Professor Bilbrey during the Fall '10 term at UCM.

Page1 / 4

Chapter 10 Life History Outline - Number of offspring is...

This preview shows document pages 1 - 4. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online