Podcast
Questions and Answers
What is an Ecological Community?
What is an Ecological Community?
- A community of trees in a forest
- A group of species competing for resources
- A collection of animals in a zoo
- A group of interacting species living in the same area (correct)
Which of the following are included in community interactions? (Select all that apply)
Which of the following are included in community interactions? (Select all that apply)
- Competition (correct)
- Predation (correct)
- Commensalism (correct)
- Symbiosis (correct)
- Neutralism
What is competition in ecological terms?
What is competition in ecological terms?
An interaction where each species is affected negatively.
What is meant by predation or parasitism?
What is meant by predation or parasitism?
What is commensalism?
What is commensalism?
What is mutualism?
What is mutualism?
What is the purpose of the Competitive Exclusion Principle?
What is the purpose of the Competitive Exclusion Principle?
What does the term 'resource' refer to in ecology?
What does the term 'resource' refer to in ecology?
What might resources include?
What might resources include?
What occurs during interference competition?
What occurs during interference competition?
Give an example of how Kudzu competes with native flora.
Give an example of how Kudzu competes with native flora.
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Study Notes
Ecological Community
- An ecological community is comprised of interacting species within a specific area.
- The well-being of one species is interconnected with others in the community.
Community Interactions
- Types include competition, predation, symbiosis, mutualism, commensalism, and parasitism.
Competition
- Defined as a negative interaction (-/-) where all participating species are adversely affected.
Predation, Parasitism, and Symbiosis
- Characterized by a beneficial relationship for one species and a disadvantageous one for the other (+/-).
Commensalism
- Involves one species benefiting while the other remains unaffected (+/0).
Mutualism
- A beneficial interaction for both species involved (+/+).
Understanding Competition
- Occurs between organisms or species when one organism's fitness is compromised by the presence of another.
Occurrence of Competition
- Arises when organisms, either of the same or different species, vie for identical ecological resources simultaneously in the same location.
Resources
- Encompasses all essentials required for survival, including food, water, light, nesting sites, and space for growth.
Competitive Exclusion Principle
- States that two species cannot coexist in the same niche within a habitat while competing for identical resources, leading to the elimination of one species.
Kudzu Example
- Kudzu, an invasive species, competes with native plants for light by overgrowing them, thereby blocking their sunlight access.
Interference Competition
- Refers to direct competition where one species outcompetes others for specific resources.
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