Competition and Interactions in Ecology Crash Course

What is the driving force behind competition in ecological communities?

• The need to survive and spread genes

• The desire for power and dominance

• The scarcity of resources

• The fear of extinction

What is the term used to describe the elimination of one species by another due to competition?

• Competitive exclusion

• Resource partitioning

• Character displacement

• Mutualism

What is an ecological niche?

• A species' job in the community

• A species' preferred habitat

• A species' ability to avoid competition

• A species' level of adaptability

What did Robert MacArthur's study of warblers reveal about their resource utilization?

• All warbler species occupy the same niche

• Warblers compete intensely for limited resources

• Warblers partition resources to avoid competition

• Warblers rely on mutualistic relationships for survival

What is the term used to describe the divergence of traits in similar species to minimize competition?

• Competitive exclusion

• Resource partitioning

• Character displacement

• Mutualism

What is an example of mutualism in ecological communities?

• Flowering plants attracting pollinators

• Barnacles hitchhiking on whales

• Predator-prey relationships

• Competition for limited resources

What is commensalism?

• A relationship where both species benefit

• A relationship where one species benefits and the other is unaffected

• A relationship where one species benefits and the other is harmed

• A relationship where species compete intensely

What did the Grants observe in the finch populations on Daphne Major?

• Competitive exclusion

• Resource partitioning

• Character displacement

• Mutualism

What will be the topic of the next episode of Crash Course: Ecology?

• Competition and Interactions in Ecology

• Predation and its Impact on Ecological Communities

• The Role of Mutualism in Ecosystems

• The Importance of Biodiversity in Conservation