1. Elk of the Northern Herd
Video Worksheet

2. Objectives: 4.05, 5.01, 5.02, 4.03
Video takes place in ________________ park.
Describe the biome of the elk.
Hint: pp
Name 3 the predators of the elk.
What is the missing thread of the food chain which would help to regulate elk population.
“Predation is good for the elk herd”, explain this statement.
Dominant bulls (male elk) round up female elk into their harems. This is good because strong _________ will be passed to offspring.

3. Mating Behavior (Grizzly's are solitary animals expect during mating)

4. Hibration

5. Mother Bear with clubs who have awakened from hibernation.

6. Man exterminated wolves from Yellowstone

7. Population growth of elk without predators
J – Curve
(Exponential Growth)

9. Collards help researches track wolves

10. Predators help to control population growth, making a S-curve
(Logistic Growth)

13. What other organisms benefit from reintroduction of wolves to Yellowstone?

15. Other herbivores of Yellowstone

16. Omnivores of Yellowstone

17. Birds and squirrels feed on pine nuts
What type or symbiotic relationship does the grizzly and
the bird or squirrel who eat pine nuts share?

18. Grizzly’s are to heavy to climb pines to get to pine nuts
Black bears can climb pines to
get to pine nuts which are high
In essential fats to help them
Get through the winter months.

19. Carnivores of Yellowstone

20. Population size or population density
Identify biotic and abiotic factors in
this environment.

21. Predator /Prey

22. Predator-Prey Relationship

23. Limiting Factors in an Environment

24. Can you identify limiting factors

25. Predators of Elk

26. Taking blood samples to check for wellness of bears

27. 7. What is the purpose of the large anthers on the male elk. 8
7. What is the purpose of the large anthers on the male elk? 8. List one density-independent limiting factor that controls elk populations. (p. 125) 9. List 3 savengers of Yellowstone who feed on dead elk. 10. Describe the niche for the following: a. Bald eagle b. Grass c. Elk d. Grizzly bear

28. Behaviors
Hierarchy (Alpha male dominant wolf)

29. Pack Animals (Social Behavior) Their survival depends on how well they work together!

30. Territorial Behavior (wolves often loose their kill to Grizzly Bears)
Older, wiser, and very large bears have learned to let Wolves
do the work for them, then they step in and claim kill.

31. Learned Behavior
Young bears
watch how
adults fish
and try it.