Ecological Cohort Studies and Survivorship Curves Quiz
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Questions and Answers

Which of the following is a fundamental question of ecologists regarding species distribution?

  • How do species disperse?
  • Why do species occur in a certain area? (correct)
  • What are the ecological factors that dictate species distribution?
  • Where do species occur?
  • What is dispersal?

  • The spatial arrangement of species that have dispersed
  • The evolutionary history of species
  • The movement of individuals away from an area of origin or centers of high population density (correct)
  • The process of natural range expansion
  • What could be a dispersal limitation for species?

  • Physical barriers like mountains
  • Large bodies of water like oceans
  • Climate variations or change
  • All of the above (correct)
  • Which of the following factors can affect the dispersal of a species?

    <p>Temperature and moisture</p> Signup and view all the answers

    What is the definition of a population?

    <p>A group of individuals of a single species living in different areas</p> Signup and view all the answers

    How is the density of a population determined?

    <p>By sampling a population and calculating the average density</p> Signup and view all the answers

    What is dispersion in the context of population ecology?

    <p>The pattern of spacing among individuals within the boundaries of a population</p> Signup and view all the answers

    Which type of survivorship curve is common for large mammals, including humans, with few offspring that they care for?

    <p>Type I</p> Signup and view all the answers

    What is the term used to describe the maximum population size that a particular environment can sustain?

    <p>Carrying capacity</p> Signup and view all the answers

    What is the term used to describe the specific set of biotic and abiotic resources that an organism uses in its environment?

    <p>Ecological niche</p> Signup and view all the answers

    What type of interaction occurs between different species when they compete for a resource?

    <p>Interspecific competition</p> Signup and view all the answers

    Which of the following is an example of exploitation in the context of species interactions?

    <p>Herbivory in animals</p> Signup and view all the answers

    What is the term for warning or bright coloration that deters predators?

    <p>Aposematic coloration</p> Signup and view all the answers

    What is the term for a palatable or harmless species mimicking an unpalatable or harmful one?

    <p>Batesian mimicry</p> Signup and view all the answers

    What is the term for an interspecific interaction where both species benefit?

    <p>Mutualism</p> Signup and view all the answers

    Which type of community is more resistant to invasive species?

    <p>Communities with high species diversity</p> Signup and view all the answers

    Which organisms feed on primary producers and are primary consumers?

    <p>Herbivores</p> Signup and view all the answers

    What is the term for species that exert a strong control on the community despite being less abundant?

    <p>Keystone species</p> Signup and view all the answers

    What type of control occurs when a lower trophic level affects the community structure of higher trophic levels by means of resource restriction?

    <p>Bottom up control</p> Signup and view all the answers

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