Walruses and Global Warming
Walruses and Global Warming
Due to the fact that the walrus lives in
cold regions with plenty of ice, global warming has a huge
impact on them. As the amount ice around them decreases they
are losing their natural environment. You may not realize it,
but they spend more than half of their life on the ice. With it
disappearing they have no where else to go.
They often depend on this ice to offer them a place to rest.
They simply use up too much energy moving around in the water
all the time. Therefore they would need to consume much more
food than they do already. Many experts believe that this would
result in many walruses starving to death due to a lack of food
available.
It is important to understand that the ice plays a vital
role in the reproduction process of the walrus. Due to global
warming they are less likely to participate in mating
activities. This is a huge concern because that means there
will be a drop in the overall population of them.
When the mothers don’t have enough food to eat and adequate
rest, it can create high levels of stress for them. As a result
their bodies will produce less milk and that means the
offspring aren’t getting the nutrition that they need in order
to survive. As global warming continues to take place the
mortality rate for these young walruses will increase. It is
believed that sometimes the mothers will even abandon their
young in order to be able to survive themselves.
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Walruses have been
affected by Global Warming. Image
courtesy of NOAA.
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Sometimes there are problems as well such as the young
being separated from its mother. This can occur when sheets of
ice break off and they aren’t able to be on the same side of
it. There is already a high mortality rate out there among the
walrus population and this is just one more way in which global
warming is going to adversely affect their numbers.
Even though there are many threats to the walrus including
humans, sharks, and polar bears; the biggest problem that they
face has to do with the environment around them changing. This
is based on the fact that most experts don’t believe they will
successfully survive when the ice melts and the temperatures
continue to increase.
While there really won’t be less food for the walrus to
find, it can be more difficult to get to thanks to global
warming. As the ice melts the volume of water is going to
increase. Since they feed from the bottom and move along the
sediment, they may need to diver further to get to it. This can
be difficult because of the need to come back up for air. As a
result they will burn more energy and in return need more food
to survive on.
In the eyes of many, these concerns with walruses and global
warming are all just speculation. That is true to a point but
it is vital to remember that such predictions are based upon
facts and scientific research. That means it is highly probable
that these things will take place. That is unless well take
action now to prevent them.
Due to the fact that we don’t know everything about the
lives of the walrus, the full extent of what global warming can
do to their population isn’t fully known. However, it is known
that global warming will have adverse effects on them, other
animals in the water and on land, and humans. That is why it is
so important for all of us to make a personal commitment to
stop global warming.
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