Evolutionary Biology of Lower Tetrapods (BIO 374)

Course Outline

Lecture Text:
Tim Hallyday and Kraig Adler.The encyclopedia of reptiles and amphibias.First Edition.

Class Meets:
Lecture: 9:45-11:00 am, T and Th, Gottwald S-111
Lab: 5:00-6:30 pm T and Th, Gottwald S-111

Attendance and Honor Code:
Students are expected to attend both lectures and lab on a regular basis. Students in this course will comply to the University of Richmond Honor Code.

Goal of Course:
The evolution of lower tetrapods is fundamental in organismal biology because it represents the appearance of tetrapods on earth, the invasion of the terrestrial ecosystem, and the evolution of reproduction independent from the aquatic environment. In this course we will analyze the evolution and diversity of adaptations that brought about these major changes in vertebrate evolution. In addition, we will address fundamental concepts of evolutionary biology such as neoteny, heterochrony, metamorphosis, parthenogenesis, polyploidy, etc., using lower tetrapods as examples.

Class Format:
Class will consist of lectures to illustrate concepts. When appropriate we will use recent primary literature to complement lecture information; in those cases students are expected to read the primary literature placed on reserve by the instructor and actively participate in class discussions. Lab will consist of dissections, examination of specimens, and discussions.

Grading:
This course has two equally weighted tests, the second test is given during exam period. Tests will combine lecture and lab. In addition, students are required to complete a research project. Students must discuss research project with Dr. de Sábefore initiating the project.

Grades will be assigned on a 90-80-70-60% basis; there is no "curve".

No makeup quizzes, lab or lecture tests will be given.

Lab specimens:
All lab specimens are UR property. Students must replace the specimens if loss or damage occurs, regardless of fault.

Lab hours:
The lab may be used for review outside of regularly scheduled lab hours; a lab key will be available at the front desk of the science library. The lab will close at noon on the days of tests. Students are not permitted to study in lab while another class is meeting. If you come to use the laboratory outside of normal class periods, please do not leave laboratory open and unattended at any time.

Lab Cleanup:
Each student is responsible for cleaning his/her dissecting tray, table area and surrounding floor area after each lab and when reviewing material outside lab hours. Please do not leave your food "remains" in the classroom. Students may be assigned duties (e.g. cleaning sinks) on a rotating basis. All students will participate in take-down of lab exams and cleaning of lab after exams.

The Course:
Class meetings combine lecture and laboratory work. Comparative Anatomy of Vertebrates is a huge subject, so there is a lot of information to be learned. We will use mostly an evolutionary approach as a way to synthesize this large amount of information. Lecture and Laboratory periods will be balanced as much as possible, however this can not always be accomplished.

You are expected to spend time outside of class working in the lab.

Graduate Course Requirements:
This course is an undergraduate level course. Graduate students may take this course for graduate credit. If so, graduate students are expected to fulfill all the requirements expected of undegraduate and, in addition, graduate students must complete an original, independent, research project by the end of the semester. This research project should be written up in the form and requirements of a national journal as if to be submitted for publication by the end of the semester.


SYLLABUS
Evolutionary Biology of Lower Tetrapods (BIO-374)
Fall 1996

Date Day Lecture
Aug. 27 T 1. Introduction/History of the discipline
Aug. 29 Th 2. Evolutionary concepts
Sept. 3 T 3. Out of water: origin of tetrapods and amphibian monophyly
Sept. 5 Th 4. Caracteristics of Amphibians: Modern groups
Sept. 10 T 5. Biology of Gymnophiona
Sept. 12 Th 6. Gymnophiona: Diversity and Biogeography
Sept. 17 T 7. Biology of Urodela
Sept. 19 Th 8. Urodela: Diversity and Biogeography
Sept. 24 T 9. Biology of Anura
Sept. 26 Th 10.Diversity of Anura
Oct. 1 T 11. Biogeography of Anura
Oct. 3 Th 12. Behavior, social interactions, parental care
Oct. 8 T 13. Larvae and Metamorphosis
Oct.10 Th 14. Larvae and Metamorphosis
Oct. 22 T Test I
Oct. 24 Th 15. Evolution and characteristics of Amniotes
Oct. 29 T 16. Prehistoric Reptiles and evolution of modern groups.
Oct. 31 Th 17. Biology of Testudinata
Nov. 5 T 18. Testudinata: Diversity and Biogeography
Nov. 7 Th 19. Biology of Amphisbaenia and Biology of Rhynchocephalia
Nov. 12 T 20. Amphisbaenia: Diversity and Biogeography
Nov. 14 Th 21. Biology of Lacertilia
Nov. 19 T 22. Lacertilia: Diversity and Biogeography
Nov. 21 Th 23. Biology of Ophidia
Nov. 26 T 24. Ophidia: Diversity and Biogeography
Dec. 3 T 25. Biology of Crocodylia
Dec. 5 Th 26. Crocodylia: Diversity and Biogeography