Predator-Prey

Use the graph to answer the following questions.

1) Propose an explanation for the apparent cause and effect relationship between the populations of
lynx and hares. (Think about the effect of size of prey populations on the number of predators and
about the effect of predators on the populations of their prey?)

2) What other factor would influence the size of the hare population in addition to the size of the
population of lynx?

Beach Niches

1. Which of the birds above would probably be considered a “generalist”? WHY? 

2. An oystercatcher and an avocet appear to reside in similar habitats. Why are they not in direct competition with each other? 

U3LS1 LTa - Niche

Use the graph above to answer the following questions.
   1) Which of these microorganisms would be a generalist (broadest niche)? How do you know?

   2) What temperature would the habitat be if you found psychrophiles, psychrotrophs, and mesophiles? Why?