Ecological Principles

10/23/01

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Table of Contents

Ecological Principles

Ecology

The Scope of Ecology

Population Growth

Exponential Population Growth

Effects of Different Intrinsic Growth Rates (r)

Influence of the Carrying Capacity (K) on Population Growth

Density-Dependent Versus Density-Independent Factors Influencing Population Size

Density-Dependent Factors

Density-Independent Factors

K-Selected Species

r-Selected Species

Competition Among Species

Ecological Niche Concept

Competitive Exclusion Principle

Extinction of One Species

Resource Partitioning

Character Displacement

PPT Slide

PPT Slide

PPT Slide

Predator-Prey Relationships

Outcomes of Predator-Prey Interactions

Oscillations in Predator and Prey Populations

Keystone Species

Keystone Species

Keystone Species

PPT Slide

Symbiosis

Types of Symbiosis

Mutualism

Ecological Succession

Ecological Succession

Ecological Succession

Primary Succession Versus Secondary Succession

Primary Productivity

Primary Productivity

Primary Productivity

Primary Productivity

Primary Productivity of Different Ecosystems

Energy and Materials Through Ecosystems

Energy Use by an Herbivore

Trophic Levels

Some Feeding Types

Simple Food Chains

A Food Web

Energy Flow Through Ecosystems

Energy and Biomass Pyramids

Biogeochemical Cycles

The Carbon Cycle

The Nitrogen Cycle

Biogeochemical Cycles

Author: David A. Krupp

Email: krupp@hawaii.edu

Home Page: krupp.wcc.hawaii.edu