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Climate Change and Species Distributions Quiz
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Climate Change and Species Distributions Quiz

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Questions and Answers

What has characterized snow loss in the Northern Hemisphere since the 1950s?

  • It has remained stable over the years.
  • It has been occurring continuously. (correct)
  • It has dramatically increased during some years.
  • It shows occasional recoveries.

    • How does temperature change with altitude according to the discussed climate factors?

  • Temperature increases as altitude increases.
  • Temperature decreases as air rises and cools. (correct)
  • Temperature remains constant regardless of altitude.
  • Cool air at higher altitudes holds more moisture.

    • Which of the following best describes the ecological impacts of climate change mentioned in the content?

  • Habitat stability for all species.
  • Increased genetic diversity in populations.
  • Range shifts and density changes in species. (correct)
  • Consistent migration patterns in wildlife.

    • What is predicted to happen to entire communities of organisms due to climate change?

    <p>They will shift higher in elevation or face elimination.</p> Signup and view all the answers

    What pattern is observed in temperature variation as one moves from the tropics to the poles?

    <p>Temperature decreases from the tropics to the poles.</p> Signup and view all the answers

    What factor is NOT typically considered to limit an organism's distribution?

    <p>Congregation size</p> Signup and view all the answers

    Which species of elephant is NOT native to Africa?

    <p>Asian elephant</p> Signup and view all the answers

    What biotic factor affects the distribution of elephants in Savuti, Botswana?

    <p>Predation by lions</p> Signup and view all the answers

    What is a primary reason elephants in Kruger National Park are restricted to specific areas?

    <p>Availability of food and water</p> Signup and view all the answers

    Which factor does NOT significantly contribute to biodiversity loss?

    <p>Regular migration patterns</p> Signup and view all the answers

    What type of fertilizer is more suitable for peanuts compared to standard vegetable fertilizer?

    <p>5N-10P-10K</p> Signup and view all the answers

    Which group of plants is directly associated with biological nitrogen fixation through nodules on their roots?

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

    What disease is notably contributing to frog extinction?

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

    What role do greenhouse gases play in Earth's climate system?

    <p>They absorb infrared radiation and trap heat.</p> Signup and view all the answers

    Which of the following gases is considered the most common greenhouse gas?

    <p>Carbon Dioxide (CO2)</p> Signup and view all the answers

    What significant change occurred in atmospheric carbon dioxide levels due to the Industrial Revolution?

    <p>A dramatic rise in CO2 levels.</p> Signup and view all the answers

    Since the 1980s, how much has the average temperature of the Earth increased?

    <p>0.7C</p> Signup and view all the answers

    What is a key contributing factor to the trend of decreasing snow cover in the Northern Hemisphere since the 1950s?

    <p>Warming temperatures attributed to climate change.</p> Signup and view all the answers

    What effect does the greenhouse effect have on Earth's average temperature?

    <p>It raises the average temperature to approximately 14C.</p> Signup and view all the answers

    Which of the following is NOT a source of methane emissions?

    <p>Burning of coal.</p> Signup and view all the answers

    What percentage of species studied show changes predicted due to climate change?

    <p>80%</p> Signup and view all the answers

    What percentage has the Emperor penguin density declined in certain parts of Antarctica?

    <p>50%</p> Signup and view all the answers

    Which factor is crucial for juvenile krill development?

    <p>Sea ice</p> Signup and view all the answers

    What is the primary consequence of a 3°C increase in Antarctic temperatures since 1981?

    <p>Loss of sea ice</p> Signup and view all the answers

    How much has the krill abundance decreased in the Southwest Antarctic over the past 30 years?

    <p>80%</p> Signup and view all the answers

    Which of the following terms describes changes in the timing of biological events in species due to climate change?

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

    What trophic level do penguins occupy in the Antarctic food web?

    <p>Secondary consumers</p> Signup and view all the answers

    What has been the trend in Northern Hemisphere snow cover since the 1950s?

    <p>Decreasing steadily</p> Signup and view all the answers

    Which two categories of ecological effects are associated with warming?

    <p>Density Changes and Morphology</p> Signup and view all the answers

    What is one predicted effect of climate change on communities of organisms regarding elevation?

    <p>They will shift to higher elevations.</p> Signup and view all the answers

    Which factor is primarily responsible for changes in temperature and precipitation with altitude?

    <p>Airflow.</p> Signup and view all the answers

    What is the primary consequence for Edith’s checkerspot butterfly due to climate change?

    <p>Early senescence of host plants.</p> Signup and view all the answers

    Which of the following statements regarding the extinction of butterflies is true?

    <p>Low elevation butterflies have experienced significant extinctions.</p> Signup and view all the answers

    What is the predicted change in the polar bear population by the year 2050?

    <p>Decline by 30%.</p> Signup and view all the answers

    Which ecological effect associated with warming involves changes in the timing of biological events?

    <p>Phenology.</p> Signup and view all the answers

    How are temperature and precipitation affected by altitude according to the ecological content?

    <p>Temperature decreases and precipitation varies with altitude.</p> Signup and view all the answers

    What is a potential consequence for polar bears related to their habitat due to climate change?

    <p>Retreating ice habitats.</p> Signup and view all the answers

    Study Notes

    Climate Change and Species Distributions

    • Species distributions are shaped by a combination of biotic and abiotic factors.
    • Biotic factors include interactions with other species, such as predation and competition.
    • Abiotic factors include interactions with the non-living environment, such as temperature, rainfall, and habitat availability.

    Climate Change & Temperature

    • Temperature decreases from the tropics to the poles.
    • Temperature and precipitation also vary with altitude, due to changes in air pressure and moisture holding capacity.
    • As air is forced over mountains, it rises and cools, leading to lower temperatures and less moisture on the leeward side of mountains.

    Climate Change & Edith's Checkerspot Butterfly

    • Edith’s checkerspot butterfly is a species of butterfly that is found in western North America.
    • The butterfly's distribution has been affected by climate change, with populations at lower elevations and southern latitudes experiencing higher extinction rates
    • This is because climate change has caused changes in rainfall and temperature patterns, affecting the availability of suitable habitat.

    Climate Change & Polar Bear Population

    • Polar bear populations are declining due to the loss of sea ice, which is their primary hunting platform.
    • The world’s polar bear population is predicted to decline by 30% by 2050.
    • The number of polar bears in Alaska is currently estimated at around 30,000, but this number is expected to decline to 10,000 by 2020.

    Climate Change & Antarctic Ecosystem

    • The Antarctic ecosystem is experiencing significant changes due to climate change.
    • Temperatures in the Antarctic have increased by 3°C since 1981 and by 1°C since the 1950s.
    • This warming trend has led to a decrease in sea ice extent and a reduction in krill populations.
    • Krill are a key food source for many Antarctic organisms, including Emperor penguins, and their decline has cascading effects on the food web.

    Climate Change & Ecological Effects

    • Climate change is having a significant impact on ecological systems, affecting a wide range of organisms at all trophic levels.
    • These effects include changes in species density, range shifts, phenology, morphology, behavior, and genetic frequencies.

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    Related Documents

    Climate Change Pt. 1 PDF

    Description

    Test your knowledge on how climate change affects species distributions, focusing on both biotic and abiotic factors. Explore the implications of temperature changes on various species, including the Edith's checkerspot butterfly. This quiz will enhance your understanding of ecological dynamics in a changing climate.

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