Massachusetts Institute of Technology
Mit: Open Course Ware: Ecology: Communities and Ecosystems
This is a collection of courses on communities and ecosystems. Some topics explored are productivity, food webs, and ecology. The courses offer video clips, lecture notes, practice problems, and exam questions. Practice problems and exam...
Science Struck
Science Struck: Interspecific Competition: Definition, Examples
Interspecific competition in an ecosystem is explained, along with the different ways it can manifest itself. Includes examples in different types of biomes.
Science Struck
Science Struck: Mutualism Relationships
Learn how mutualism benefits the organisms in a symbiotic relationship and what the different types of mutualism are. Provides lots of examples.
CK-12 Foundation
Ck 12: Biology: Ecosystems
[Free Registration/Login may be required to access all resource tools.] Introduction to ecosystems and other ecological concepts.
BiologyWise
Biology Wise: Examples of Mutualism
Describes the role of mutualism in an ecosystem and the different types, and provides examples.
BiologyWise
Biology Wise: Competitive Exclusion Principle
The concept of competitive exclusion, explained here, states that two species cannot co-exist when needing the same, limited resources to survive. The different types are described and examples are provided.
BiologyWise
Biology Wise: Examples of Parasitism
Explains what parasitism is and provides a few examples of parasitic relationships.