Mammalogy _________________ ____ Fall 2002
Describe, Compare and Contrast the following features for fossorial and
cursorial mammals and explain the significance of each as it enhances the
particular locomotor adaptation. If the feature is a fossorial adaptation,
explain how it maximizes Force out. If the feature is a cursorial adaptation,
explain how it maximizes Velocity out. (4 points each 20 points total)
- Vertebral Column
- Olecrenon process of the ulna.
6-10 Define, characterize, and state the significance of any 5 of the
following. Where appropriate state what taxon (-a) the term is associated with
(as discussed in this class the material covered by the test). (5 points each -
25 points total)
- Bergmann's Rule
- Eimer's organ
- Induced ovulation
- Pectinate tooth comb
- Reciprocal altruism
- Xenarthrous vertebrae
11-12 Answer any TWO of the of the following (15 points each – 30 points
- Discuss the adaptions to the cold that occur in molossid bats, sea lions,
weasels, and arctic mammals such as wolves or caribou.
- Discuss Delayed Implantation. What ecological factors have selected for
this reproductive strategy in male, female, and neonate bats? What different
ecological factors have been more important in pinnipeds? EXPLAIN.
- What physiological changes occur when bears enter winter dormancy? Why are
bears not considered to be hibernators. Do the calculations to show that
arousal is not possible from true hibernation: Fat provides 9 cal/gram of
energy. An average-sized bear weighs 375 kg.
- Three taxa that are highly adapted for feeding on termites were discussed
as belonging the orders that were covered for this examination. For these
three taxa, give the Family, Order, and Zoogeographic distribution. What
features do all three have in common. Two of the taxa are very similar to
each other. List and discuss the significance of all the convergent
characters and adaptations the two have in common. What are the major
differences between these two.
13-19 Complete the information in the table below for any SEVEN of the
following families given on the answer sheet below and that you have NOT
characterized in a previous answer. Information should apply to the family, NOT
the order. Five points each. 35 points total Order (½ pt); Zoogeographic
Region(s). Note those if known only from a limited subregion, such as Madagascar
(½ pt), Diagnostic Characters (2 pts), Adaptations/Behavior/life history (2