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Background
Migration is a risky business. Animals face countless challenges and risk
their lives when they migrate. So why do they do it? Select one of the
Journey North species. Try to find the answer to each of the questions
below. Notice that all of the questions relate to survival, either of
the individual animal or its offspring. By carefully exploring what an
animal needs in order to stay alive — or in order to reproduce so
its young can live — you can discover how migration relates to survival.
You may also be able to predict when your animal will take its journey.
| Distribution/Range
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| ___ |
Where
is your animal found in the winter months? In the summer months? |
| ___ |
Describe
its habitat on its wintering grounds. |
| ___ |
Describe
its habitat on its summering grounds. |
| ___ |
If the
habitat is different, in what ways is it different? |
| ___ |
How
much do temperatures change during the year on the animal’s wintering
grounds? |
| ___ |
How
much do temperatures change during the year on the animals’ summering
grounds? |
| ___ |
Are
there large areas where each kind of habitat is available in the north? |
| ___ |
Are
there large areas where each kind of habitat is available south of
the U.S.-Mexican border? |
| ___ |
Compare
the amount of habitat available north and south of the border |
| ___ |
Does
this animal follow the same migration patterns (timing and route)
every year? |
| ___ |
Do virtually
all the individuals of this species migrate? |
| Food |
| ___ |
What
does this animal eat? (What is its prey?) |
| ___ |
How
does this animal get its food? (What are its methods of feeding or
hunting?) |
| ___ |
What
physical adaptations does this animal have for obtaining its food? |
| ___ |
What
behavioral adaptations does this animal have for obtaining its food? |
| ___ |
How
might cold weather affect this animal’s ability to obtain food? |
| ___ |
What
does its prey eat? If its prey is plants, what do these plants require? |
| ___ |
What
preys on it? |
| ___ |
Draw
a food chain showing your animal’s place(s) on it. |
| ___ |
Which
links on this food chain are affected by cold weather? Freezing temperatures? |
| ___ |
What
links on this food chain are affected by increasing photoperiod? |
| Physiology |
| ___ |
How
would cold weather affect this animal? |
| ___ |
How
would freezing temperatures affect it? |
| ___ |
How
would hot temperatures affect it? |
| ___ |
How
would drought affect it? |
| ___ |
How
would temperatures affect the amount of food this animal needs? |
| Reproduction |
| ___ |
How
does this animal select a mate? |
| ___ |
When
does this animal mate? |
| ___ |
Where
does this animal mate? |
| ___ |
Does
this animal need special habitat, food, or temperatures to mate? |
| ___ |
When
are its young born or hatched? |
| ___ |
Where
are its young born or hatched? |
| ___ |
Do the
young need special habitat or temperatures in order to survive? |
| ___ |
What
do the young eat? Is this different from their parents’ diet? |
| ___ |
What
quantities of food do the parents need in order to feed their offspring? |
| ___ |
How
long does this animal live? |
| ___ |
Do all
age groups (young and old) migrate? |
Conclusion
- Why do
you think your animal migrates?
- When do
you predict it will migrate? Why?
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Journey North, 2007. All Rights Reserved.
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