Learn Biogeography In This Quiz!

40 Questions | Attempts: 40

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Learn Biogeography In This Quiz! - Quiz

Biogeography is the study of the distribution of species and ecosystems in geographic space and through geological time. Organisms and biological communities often vary in a regular fashion along geographic gradients of latitude, elevation, isolation and habitat area. Learn Biogeography in this Quiz!


Questions and Answers
  • 1. 
    Why are islands a topic of interest (4 correct answers)
    • A. 

      Discrete boundaries, often small size: can study the entire biota

    • B. 

      Many islands: replication is possible

    • C. 

      Simplified community composition: fewer species, fewer trophic levels and other species interactions

    • D. 

      Experimental systems: can be unintentional "experiments" or intentional manipulations

    • E. 

      Few in number: Easy to characterize all 

    • F. 

      Temperature Variation: allows for broad range of data

  • 2. 
    Isolated islands have steeper species-area curves than mainland habitats of the same size. This is because isolated islands lose species at a higher rate as they get smaller than mainland habitats.
    • A. 

      True

    • B. 

      False

  • 3. 
    The Equilibrium Theory of Island Biogeography (ETIB) is a 'dynamic' tradeoff between rates of extinction and immigration.
    • A. 

      True

    • B. 

      False

  • 4. 
    Which of the following are strengths of ETIB?
    • A. 

      Offers simple predictions of island species richness based on three very basic observations: isolation, size, turnover

    • B. 

      Fairly easy to design tests of its prediction

    • C. 

      Considers an innumerable amount of variables

    • D. 

      Covers a broad range of factors

  • 5. 
    The major weakness of ETIB is that it's too oversimplified to be realistic and other factors might also be important.
    • A. 

      True

    • B. 

      False

  • 6. 
    The Great Basin serves as an example of a non-equilibrium biota: the mountains were isolated for about 10,000 years following the end of Pleistocene. Small mammals had steeper species-area curve than birds probably due to mammals having less dispersal.
    • A. 

      True

    • B. 

      False

  • 7. 
    The graphical representations of endemism of insular biotas show that as area and isolation from the mainland increase, there's a higher chance for endemism. 
    • A. 

      True

    • B. 

      False

  • 8. 
    There are more unique species on more isolated islands.
    • A. 

      True

    • B. 

      False

  • 9. 
    The disharmonic for insular biota increase with isolation.
    • A. 

      True

    • B. 

      False

  • 10. 
    The nature of immigration is random and nonselective.
    • A. 

      True

    • B. 

      False

  • 11. 
    Concerning immigration to islands, terrestrial species have a greater possibility of dispersing to islands than volant (flying) species.
    • A. 

      True

    • B. 

      False

  • 12. 
    Which of the following is not accurate concerning the selective nature of immigration?
    • A. 

      An example of a volant species native to Hawaiian is the Lasiurus cinereus (Hoary Bat)

    • B. 

      Wind/Water dispersed species of plants have a greater possibility of dispersing to islands than animal dispersed species

    • C. 

      Salt water tolerance helps in the dispersal of plants to islands

    • D. 

      In Southwest North America, both habitat generalist herbivores and habitat specialist carnivores have decreasing function with body size

  • 13. 
    There are multiple attributes of endangerment. Which of the following are most likely to be endangered? (There are 4 correct answers)
    • A. 

      Small Mammals

    • B. 

      Large Mammals

    • C. 

      Small Mammals with small ranges

    • D. 

      Large mammals with large ranges

    • E. 

      Intermediate-sized mammals with small ranges

    • F. 

      Large mammals with small ranges but rapid reproduction

    • G. 

      Very small terrestrial mammals with small ranges

    • H. 

      Very small, flying mammals with small ranges (i.e., bats)

  • 14. 
    Which of the following are involved in the assembly of island biota?
    • A. 

      Competitive exclusion

    • B. 

      Diffuse competition

    • C. 

      Assembly rules

    • D. 

      Niche shifts

    • E. 

      Predator release

  • 15. 
    Diffuse competition is how different kinds of species with different traits that might predict which species might be competing with each other.
    • A. 

      True

    • B. 

      False

  • 16. 
    Concerning niche shifts, the meadow vole (prey) has a higher density on islands without shrews (closer to forest habitats) and are almost nonexistent on islands with shrews (closer to grassland habitats).
    • A. 

      True

    • B. 

      False

  • 17. 
    Concerning niche shifts, the short-tailed shrew has a high population on islands with voles. The population is still present on islands without voles due to dietary alternatives.
    • A. 

      True

    • B. 

      False

  • 18. 
    Niches shift according to predator/prey availability. 
    • A. 

      True

    • B. 

      False

  • 19. 
    Which of the following are evolutionary trends on islands? (6 correct answers)
    • A. 

      Adaptation

    • B. 

      Speciation

    • C. 

      Random events

    • D. 

      Loss of flight

    • E. 

      Loss of dispersal morphology in plants

    • F. 

      Body size changes

    • G. 

      Gain of flight

    • H. 

      Gain of dispersal morphology in plants

  • 20. 
    One common evolutionary trend on islands is the loss of dispersal morphology. This can be seen in the evolution of seeds with less dispersal prone traits.
    • A. 

      True

    • B. 

      False

  • 21. 
    Which of the following are true concerning body size changes?
    • A. 

      Gigantism is characteristic of species whose mainland source population is comprised of larger mammals

    • B. 

      Dwarfing is characteristic of species whose mainland source population is comprised of larger animals

    • C. 

      Gigantism is characteristic of species whose mainland source population is comprised of smaller mammals

    • D. 

      Dwarfing is characteristic of species whose mainland source population is comprised of smaller animals

  • 22. 
    The island rule is that a smaller mainland species gives rise to a larger island species and a larger mainland species gives rise to a smaller island species.
    • A. 

      True

    • B. 

      False

  • 23. 
    Areography, ecogeography, and macroecology of continental and oceanic biotas involve
    • A. 

      Characterizing the geographic range

    • B. 

      Explaining geographic variation in characteristics of individuals and populations

    • C. 

      Evolution

    • D. 

      Dispersal

    • E. 

      Range Shift

  • 24. 
    Species richness tends to decrease in higher latitudes while range size increases in higher latitudes
    • A. 

      True

    • B. 

      False

  • 25. 
    Which of the following are possible reasons behind Bergmann's Rule (body size increases with latitude)?
    • A. 

      Heat conservation (large bodies)

    • B. 

      Heat dissipation (small bodies)

    • C. 

      Endurance (Large bodies)

    • D. 

      Dispersal (Large Bodies)

    • E. 

      Extinction (Large --> Small)

    • F. 

      Evolution (Small --> Large)

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