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Introduction to Terrestrial Biomes exam Flashcards

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Introduction to Terrestrial Biomes exam
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  • Biome

    A large area on Earth with distinctive climate, flora, and fauna.
  • Terrestrial Biomes

    Biomes specifically found on land.
  • What characterizes terrestrial biomes?

    Climate and vegetation.
  • Echotone

    A transitional zone between two or more biomes with mixed characteristics.
  • Disturbance

    A short-lived event that significantly changes or disrupts the structure and function of an ecosystem.
  • What is a disturbance regime?

    Regular or predictable disturbances that a community depends on for long-term survival.
  • Example of a disturbance

    Wildfires.
  • How do disturbances influence species distribution?

    By creating new opportunities for species to disperse and spread.
  • What is the role of regular wildfires in some biomes?

    To prevent fuel accumulation and avoid larger, more destructive fires.
  • Flora

    Dominant plants in a biome.
  • Fauna

    Typical animals in a biome.
  • What is the significance of understanding biome dynamics?

    It is crucial for grasping ecosystem resilience and biodiversity.
  • How do biomes across different continents compare?

    They are similar but not perfectly identical.
  • What can cause variations in biomes across continents?

    Differences in species and local conditions.
  • What is the impact of a large, destructive fire on a community?

    It can completely wipe out the community.
  • Why are boundaries between biomes not clear-cut?

    Because they gradually transition into each other.
  • What is the role of fuel in wildfires?

    Accumulated branches, twigs, and leaves serve as fuel for wildfires.
  • How do regular small fires benefit a community?

    They prevent the accumulation of fuel, reducing the risk of larger fires.
  • What is the relationship between disturbances and resource availability?

    Disturbances can influence resource availability by altering the ecosystem structure.
  • Why do some biomes depend on disturbances?

    To maintain ecological balance and prevent destructive events.
  • What is an example of a biome that relies on regular wildfires?

    Giant sequoia forests in California.
  • How do disturbances create new opportunities for species?

    By disrupting the ecosystem, allowing species to disperse and spread.
  • What happens without a regular disturbance regime?

    Fuel accumulates, leading to larger, more destructive fires.
  • What is the importance of studying terrestrial biomes?

    To understand the unique ecosystems and their dynamics.
  • How do biomes contribute to biodiversity?

    By hosting unique ecosystems with diverse species.
  • What is the effect of a disturbance on an ecosystem's structure?

    It significantly changes or disrupts the structure.
  • Why are biomes dynamic?

    Because of disturbances that alter their structure and function.
  • What is the role of climate in defining a biome?

    Climate is a primary characteristic that defines a biome.
  • How do biomes transition into each other?

    Through echotones, which are gradual transitional zones.