PDF Notes: Chapter7

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    What defines a community in ecology?

    A community consists of populations in the same geographic area at the same time.

    What is a niche?

    An organism's niche includes its ecological requirements and interactions.

    How do predator-prey populations cycle?

    Predator populations lag behind prey populations due to food availability.

    What is herbivory?

    Herbivory is the consumption of plants by animals.

    What is the competitive exclusion principle?

    Two species cannot coexist if they compete for identical resources.

    What is resource partitioning?

    Resource partitioning allows species to coexist by using different resources.

    What is symbiosis?

    Symbiosis involves close interactions between different species over time.

    What occurs in a commensal relationship?

    One species benefits while the other is neither helped nor harmed.

    What is mutualism?

    Mutualism benefits both interacting species.

    What defines parasitism?

    A parasite benefits at the expense of its host.

    What is amensalism?

    Amensalism harms one species while the other is unaffected.

    What is coevolution?

    Coevolution involves reciprocal genetic changes between interacting species.

    How is biodiversity measured?

    Biodiversity is measured by species richness and evenness.

    What are community dynamics?

    Community dynamics refer to changes in structure and composition over time.

    What is primary succession?

    Primary succession occurs on newly formed land or exposed rock.

    What happens during secondary succession?

    Secondary succession follows disturbances like wildfires, restoring the ecosystem.