CPALMS
Florida State University Cpalms: Florida Students: Changing With the Times: Variation Within Ecosystems
A tutorial investigating how living organisms in an ecosystem are affected by environmental changes.
Texas Education Agency
Texas Gateway: Symbiosis
Given scenarios or illustrations, the student will determine the nature and type of relationship between organisms, including parasitism, commensalism, mutualism, and competition.
National Geographic
National Geographic: Ecosystem Imbalance in the World
In this lesson, students build on their knowledge of individual impacts on the ocean to see how the whole system can react to threats and changes. They examine ways in which human actions throw marine ecosystems out of balance, explore...
Biology Corner
Biology Corner: Examining the Stages of Pond Succession
This activity investigates the stages a pond goes through as it becomes a meadow. Diagrams of each stage are provided.
Concord Consortium
Concord Consortium: Dam Removing: Changes in the Environment Affect Population
What happens to a population when the environment changes? Students remove a dam that divides an ecosystem to illustrate the effects of environmental changes. Students observe and collect data as the grass and then the rabbit populations...
CK-12 Foundation
Ck 12: Biology: Succession
[Free Registration/Login may be required to access all resource tools.] Overview of primary succession, secondary succession, and climax community.
Other
Forest Pathology: Invasive Species: Nightmare or Reality?
This informative resource provides an overview of the invasive species problem related to trees and suggests a solution to solving the problem. Contains links to other related information.