1. What would happen to the rabbits if the foxes disappeared?
2. What would happen to the toads if the predacious insects disappeared?
3. What would happen to the predacious insects if the spiders disappeared (think carefully)?
4. What would happen to the hawks and owls if the foxes and snakes disappeared?
5. What would happen to the foxes if the hawk and owl population increased?
6. Name two species which compete with each other for food.
7. Name two first-order consumers.
8. Name two predators.
(Answers)
1.The population of Rabbits will grow, because the foxs are gone..but the owls still can eat them.
2.The population of Toads migh go down...because the toad eats predacious insects the most.
3.The Spider is gone, so they have to eat herbivours more.
4.there won't be other animals to compete for the food, so the population of the owl will increase.
5.Fox will have trouble finding food, because the owls will eat the most of the food. So the population of Fox will decrease.
6.Spiders and Preaceos Insects.
7.Seeds eating birds and Rabbits
8.Owls and Foxes
1 comment:
Dear Science_aholic,
Good answers overall. You could go into more depth though with numbers 3-5. You wrote about some of the immediate effects of changes in the ecosystem populations. What might be some of the longer range effects? For instance, if the hawls and owl populations increase because there are no foxes and snakes what impact might that have on the 1st order consumers? Do you think the hawks and owls will be able to control the first order consumer populations? After you get caught up on your other tasks, come back to numbers 3-5 and tell me more about some of the indirect effects that could occur from the changes questions 3-5 describe.
Good work.
Mrs. Bonzarelli
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