ap biology - community ecology & energy flow

timestamps

• 0:00

  Introduction to Community Ecology

• 0:31

  Defining Ecology and Communities

• 1:02

  Community Example

• 1:32

  March Mammal Madness

• 2:03

  Population Ecology Refresher

• 3:05

  Energy Flow in Communities

• 3:36

  Trophic Levels Overview

• 4:37

  Energy Loss as Heat

• 5:08

  Trophic Level Details

• 7:11

  Energy Pyramid Explanation

• 8:15

  10% Energy Transfer Rule

• 8:45

  Producers and Energy Source

• 10:50

  Food Webs and Rules

• 11:51

  Biomass Proportions

• 12:21

  Complex Food Web Example

• 13:24

  Keystone Species Impact

• 13:57

  Species Relationships

• 14:27

  Parasitism Examples

• 15:31

  Commensalism Relationships

• 17:05

  Mutualism Benefits

• 18:37

  Predator-Prey Dynamics

• 19:39

  Community Ecology Summary

• 20:39

  Practice Problem 1

• 25:49

  Practice Problem 2

• 29:28

  Q&A Session

• 32:07

  Wrapping Up Ecology