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Adaptation

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Adaptation & Climate Change Presented By: Jessica Heinz ... This video discusses climate change, 5 scary effects of climate change, air pollution, and extinction. – PowerPoint PPT presentation

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Title: Adaptation


1
Adaptation Climate Change
  • Presented By Jessica Heinz

2
Presentation Overview
  • Why do animals need to adapt?
  • How do they adapt?
  • What are the consequences of not adapting to
    climate change?

3
What is Climate Change?
  • The term climate change is technically defined as
    a long-term change in the earths climate,
    especially a change due to an increase in the
    average atmospheric temperature.

4
Effects on Animals
  • Examples
  • Birds lay eggs earlier in the year than usual
  • Hibernating mammals come out sooner
  • Sea level rises of only 50cm could cause sea
    turtles to lose their nesting beaches
  • Polar bears are affected both by the reduction in
    sea ice and by reduced stocks of its primary
    food, the ringed seal.

5
What is Adaptation?
  • The ability of a species to survive in a
  • particular ecological niche, especially because
  • of alterations of form or behavior brought about
  • through natural selection.

6
Why Do Animals Need to Adapt?
  • To SURVIVE
  • If they do not adapt, they will not have the
    necessary traits to survive in a changing
    environment.
  • They may have to find new food sources.
  • They may have to migrate with the seasons to find
    food and/or shelter.
  • They may have to physically adapt through the
    generations to become a better predator and/or
    hide from predators
  • Become leaner, fatter, smaller, larger, more
    agile, better climber, better digging skills,
    better hunter, better scavenger, etc.

7
How Do Animals Adapt?
  • INSTINCT
  • Animals instinctually know where to find food and
    water. Through trial-and-error they learn how to
    obtain it.
  • GENERATION TO GENERATION
  • Although in most cases is takes several
    generations for an adaptation to make its way
    through a large part of a population, Minor
    changes can be passed from parents to children
    and a series of small changes can build up into
    adaptation.
  • Something as simple as a better hunting technique
    can be passed from mother to baby and then from
    that baby to its future offspring, and so on
    until the entire population knows it. It
    therefore becomes an adaptation.

8
Consequences of Not Adapting
  • If species do not adapt to the changing climate,
    they are at a very high risk of extinction.
  • The extinction process may be slow, but
    eventually all individuals will die because they
    will not have the necessary skills or traits to
    survive in the habitat around them.
  • Some animals may not adapt but simply move to a
    new habitat and learn to make their way there.

9
Air Pollution Animals
  • Air pollution is particularly dangerous to
    animals when it is in the form of acid rain.
  • Acid rain kills aquatic life in lakes and streams
    when the acidity of the water is altered.
  • The acid can not only kill plants, but
    contaminate them, and in turn be ingested by
    wildlife.
  • Extreme ultraviolet radiation caused by a
    thinning ozone layer damages plants and wildlife.
  • Troposheric ozone molecules near the ground
    damage lung tissues of animals and prevent plant
    respiration by blocking the openings in leaves
    where respiration occurs.
  • Without respiration, a plant is not able to
    photosynthesize at a high rate and so it will not
    be able to grow.
  • Without adequate plant life, animals may be
    forced to move to an alternate location or may
    starve if they cannot adapt to finding other food
    sources.

10
Air Pollution Adaptation
  • If it were not for negligent human actions that
    cause so much air pollution, which further
    contributes to climate change, animals would not
    have adapt.
  • There would not be a threat to species that are
    not adapting as rapidly as the climate is
    warming.
  • Pollution is KILLING species, and it is OUR fault
    they are dying.

11
Animals That Have Already Begun to Adapt
  • Polar bears today are thinner and less healthy
    than those of 20 years ago.
  • Many fish species are moving northward in search
    of cooler waters.
  • Coral reefs around the world are predicted to
    increase by up to a third in size.
  • Elephant seal pups are leaner because their prey
    is migrating to cooler waters.
  • Canadian red squirrels are breeding about 18 days
    earlier.

12
How To Prevent Climate Change so that Animals Do
Not Need to Adapt
  • Combat deforestation
  • Forests help protect the planet by absorbing
    massive amounts of carbon dioxide (CO2), the most
    abundant type of pollution that causes climate
    change.
  • Engage with businesses to reduce carbon emissions
  • Burning fossil fuels, such as coal, oil and
    natural gas, to generate energy has the greatest
    impact on the atmosphere than any other single
    human activity.
  • Coal is especially damaging to our atmosphere,
    releasing 70 more carbon dioxide than natural
    gas for every unit of energy produced.

13
Homework Questions
  • What are the main causes of air pollution? What
    can you do to lower it? Why is reducing air
    pollution important?
  • What are the possible risks to animals if air
    pollution is not reduced? How can harming animals
    affect us?
  • Name and describe 2 ways that animals can adapt
    to climate change. What may happen if they do not
    adapt?
  • Topic 13 Summary due Friday, November 30

14
Video Time!!!
  • This video discusses climate change, 5 scary
    effects of climate change, air pollution, and
    extinction.
  • http//www.youtube.com/watch?vM2Jxs7lR8ZIfeature
    relmfu
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