Cluster 4 Day 2-Food Webs and Ecology

In a desert environment, cactus wrens often build their nests in cholla cacti to avoid predators. This behavior does not hurt the cacti. Which type of relationship do cactus wrens and cholla cacti demonstrate?

Which of the following are producers?

Which of the following is a primary consumer in the food web pictured?

In this food web, if the hawk population increased, what would happen to the rabbit population?

In this food web, which of the following might happen if the mouse population increased?

One of the wolf populations begins to compete with a new bear population for the same herbivores. Over time, the herbivore population decreases. What is the limiting factor to the herbivore?

The wolf population gets reintroduced to the ecosystem. There is enough deer to go around, so they eat comfortably. The wolf population begins to grow out of control with so much food. The different wolf families then begin to compete for the few caves that exist. Not everyone has good shelter so some have to sleep in the forest floors. What is the limiting factor to the wolves?

Sea turtles use beaches in Florida to lay their eggs. These beaches are now inhabited by humans and there are less places for the turtles to lay their eggs. This has resulted in a major reduction in the amount of turtles in the environment. Which of the following is a limiting factor in this ecosystem?

Use the food web below to answer the question. Which of the following would result if the population of grasshoppers increased?