14 Questions
What is the primary focus of community ecology?
Biodiversity
What is the main factor affecting the uneven distribution of biodiversity?
Temperature
Which type of ecosystem is considered the most productive and complex on Earth?
Rainforests
What is the primary cause of extinction mentioned in the text?
Habitat loss
What type of interaction is mutualism?
Positive-positive interaction
Which organisms live with plant roots and form a mutualistic relationship?
Bees
What are autotrophic organisms also known as?
Producers
What percentage of energy passes to the next trophic level?
10%
What is the term for the colonization of habitats devoid of life?
Primary succession
What is the term for the most abundant species in a community?
Dominant species
Which species has a large impact on the community structure by determining the food web of an ecosystem?
Keystone species
What are biodiversity hotspots?
Areas with high species diversity and high threat of destruction
What does low genetic variability lead to?
Low fitness
What can a small population become stuck in due to low genetic variability?
Extinction cycle
Study Notes
Community Ecology
- The primary focus of community ecology is the interactions between different species in a community.
Biodiversity
- The main factor affecting the uneven distribution of biodiversity is the variation in environmental conditions such as temperature, rainfall, and latitude.
Ecosystems
- Coral reefs are considered the most productive and complex ecosystems on Earth.
Extinction
- Habitat destruction is the primary cause of extinction.
Interactions
- Mutualism is a type of interaction where both species benefit.
Symbiotic Relationships
- Mycorrhizal fungi live with plant roots and form a mutualistic relationship.
Autotrophic Organisms
- Autotrophic organisms are also known as producers.
Energy Transfer
- Only 10% of energy passes to the next trophic level.
Ecological Succession
- The term for the colonization of habitats devoid of life is primary succession.
Community Structure
- The term for the most abundant species in a community is dominant species.
- Keystone species have a large impact on the community structure by determining the food web of an ecosystem.
Biodiversity Hotspots
- Biodiversity hotspots are areas with high levels of endemism and species richness.
Genetic Variability
- Low genetic variability leads to reduced fitness and increased extinction risk.
- A small population can become stuck in an evolutionary dead end due to low genetic variability.
Test your knowledge of community ecology with this quiz! Explore topics such as biodiversity, interspecific interactions, and community structure. Challenge yourself with questions about the degree of variation of life forms within a given area and the factors that affect biodiversity.
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