Environmental Change

Subdecks (8)

Cards (168)

  • What should students be able to evaluate by the end of the video?
    The impact of environmental change on species distribution
  • Are students required to learn specific organisms for the exam?
    No, specific organisms are not required
  • What factors can affect the distribution of species?
    Abiotic or nonliving factors
  • Name three abiotic factors that affect species distribution.
    Temperature, availability of water, gas composition
  • How can changes in abiotic factors affect species distribution?
    They can alter where species can survive
  • Where is the desert fox adapted to live?
    In the hot conditions of the desert
  • What adaptation helps the desert fox lose heat?
    Large ears increase surface area
  • Why do we not find the desert fox in Europe?
    Conditions are cooler in Europe
  • What species replaces the red fox as we move north?
    The arctic fox
  • How is the arctic fox adapted to its environment?
    It has small ears to retain heat
  • How do abiotic factors show geographic variation?
    Different species adapt to local conditions
  • What happens to plant distribution as water availability changes?
    Different plants adapt to varying water levels
  • Why do wildebeest migrate across Africa?
    To follow rainfall patterns for grazing
  • What seasonal behavior do many bird species exhibit?
    They migrate for warmer conditions
  • Where do swallows migrate during winter?
    To warm conditions in Africa
  • How does human activity influence abiotic factors?
    It alters gas levels in the atmosphere
  • What is the effect of sulfur dioxide on lichens?
    Lichens are sensitive to sulfur dioxide
  • Where do we find the largest numbers of lichens?
    In unpolluted air
  • What happens to dissolved oxygen levels when sewage enters streams?
    Dissolved oxygen levels decrease
  • What organisms cannot live in low oxygen conditions?
    Mayfly larvae cannot survive
  • What can happen to populations of species due to low oxygen levels?
    Populations can fall
  • What are the key ideas illustrated in the video regarding species distribution?
    • Impact of environmental change
    • Influence of abiotic factors
    • Geographic and seasonal variations
    • Effects of human activity
  • What are the main types of variations in abiotic factors affecting species distribution?
    • Geographic variation: Different species in different climates
    • Seasonal variation: Changes in populations due to seasons
    • Human influence: Pollution and habitat changes