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Ecology and Evolution: Foundations, Mechanisms, and Community Interactions

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Introduction to Evolution and Natural Selection

  • Introduction to Evolution and Natual Selection Example 1
    03:22
  • Introduction to Evolution and Natual Selection Example 2
    04:28
  • Typological vs. Population Thinking
    03:56

Natural Selection

  • Natural Selection Example 2
    05:11
  • Natural Selection: Observations and Inferences
    04:12
  • Natural Selection Example 1
    02:19

Evolution of Populations

  • Evolution of Populations Example 1
    03:33
  • Introduction to Evolution of Populations
    05:14

Genetic Variation

  • Sources of Genetic Variation
    02:16
  • Sexual Reproduction and Recombination
    05:08
  • Mutations
    06:42

Genetics and Allele Frequencies

  • Allele Frequencies
    06:36
  • Mendelian and Population Genetics
    04:26
  • Genetics and Allele Frequencies Example 1
    02:56

Genetic Drift

  • Genetic Drift Example 1
    02:00
  • Genetic Drift Example 2
    02:37
  • Genetic Drift
    05:06

Gene Flow

  • Gene Flow Example 1
    04:34
  • Gene Flow
    01:43

Allopatric and Sympatric Speciation

  • Allopatric and Sympatric Speciation
    02:46
  • Allopatric and Sympatric Speciation Example 1
    04:25
  • Allopatric Speciation
    03:53

Natural Selection

  • Sexual Selection
    06:17
  • Natural Selection
    04:43
  • Natural Selection Example 3
    04:18

Natural Selection

  • Sexual Selection
    06:17
  • Natural Selection
    04:43
  • Natural Selection Example 3
    04:18

Natural Selection

  • Sexual Selection
    06:17
  • Natural Selection
    04:43
  • Natural Selection Example 3
    04:18

Natural Selection

  • Sexual Selection
    06:17
  • Natural Selection
    04:43
  • Natural Selection Example 3
    04:18

Evolution of Populations

  • Evolution of Populations Example 1
    03:33
  • Introduction to Evolution of Populations
    05:14

Evolution of Complexity

  • Origin of Complex Traits
    06:15

Population Demography

  • Life Tables
    03:49
  • Population Demography Example 1
    02:18
  • Survivorship Curves
    02:54

Factors Limiting Population Growth

  • Density-Dependent Factors
    02:37
  • Factors Limiting Population Growth
    00:51
  • Density-Dependent vs. Density-Independent Factors
    03:14

Introduction to Population Growth Models

  • Introduction to Population Growth Models Example 3
    02:52
  • Introduction to Population Growth Models
    01:09
  • Assumptions of Population Growth Models
    03:29

Exponential Population Growth

  • Exponential Population Growth Example 2
    07:34
  • Exponential Population Growth
    03:05
  • Exponential Population Growth Equations
    06:35

Logistic Population Growth

  • Summary of Key Features & Assumptions for Each Population Growth Model
    07:28
  • Logistic Growth in a Limited Environment
    05:00
  • Logistic Population Growth Example 1
    04:28

r/K Selection

  • r/K Selection
    04:08
  • r/K Selection Example 1
    02:01

Life History

  • Life History
    04:01
  • Life History: Population Reproductive Strategies
    02:51
  • Life History Example 1
    02:46

Introduction to Community Ecology

  • Introduction to Community Ecology
    02:03

Introduction to Community Interactions

  • Overview: Types of Community Interactions
    02:55
  • Introduction to Community Interactions Example 1
    02:23
  • Introduction to Community Interactions
    01:57

Community Interactions: Competition (-/-)

  • Resource Partitioning (Partial Niche Overlap)
    03:57
  • Competitive Exclusion Principle (Complete Niche Overlap)
    04:23
  • Community Interactions: Competition (-/-) Example 1
    04:23

Community Interactions: Exploitation (+/-)

  • 1) Exploitation (+/-): Predation
    01:42
  • 3) Exploitation (+/-): Parasitism
    02:37
  • Community Interactions: Exploitation (+/–)
    00:49

Community Interactions: Mutualism (+/+) & Commensalism (+/0)

  • Positive Interactions
    02:56
  • Summary of Community Interactions
    01:52

Community Structure

  • Community Structure Example 3
    02:22
  • Community Structure Example 1
    03:37
  • Community Structure
    04:25

Community Dynamics

  • Disturbances Make Communities Dynamic
    03:37
  • Secondary Ecological Succession
    02:31
  • Effects of Early-Arriving Species on Late-Arriving Species
    01:34

Introduction to Ecosystems

  • Grazing & Detritus-Based Food Chains
    03:29
  • Introduction to Ecosystems Example 2
    01:57
  • Introduction to Ecosystems
    04:07

Energy Flow Through Ecosystems

  • Gross Productive Energy vs. Assimilated Energy
    05:28
  • Energy Efficiency in Ecosystems
    06:28
  • Energy Flow Through Ecosystems Example 2
    07:07