Some
Study hints for Exam #3
Exam will cover lectures
'How Species Interact' (IV A ) through 'Patterns in species numbers'
(IV B 2)
- Be familiar with graphs
that describe concepts such as niche overlap, Lotka-Voterra
predator-prey relationship, functional and numerical responses of
predators to prey density, the intermediate disturbance hypothesis, and
island area and distance versus species number.
- For both competition
and predation, be familiar with types of evidence and experiments that
indicate their
importance, and with explanations on how coexistence is
maintained. Which ones are consider equilibrium explanations?
- Know how various
“types” of species interactions including types of competition
(exploitive, inference) and of predation
(herbivory, parasitism, etc.) differ from one another.
- Be familiar with the
outcomes of the Lotka competition model and the Lotka-Volterra
predation model. Be able to explain what terms in the
model represents.
- Know what is meant by
the
limiting resource, keystone species, and niche. Explain how the
concept of niche can be useful in investigating competition.
- Explain ideas
associated with changes in species numbers as a function of latitude,
island size and distance, and disturbance.
- As always, be able to
answer the
italicized questions in the on-line lectures
