6 cr. (call No.’s 01082/01106); Prerequisite: BIOS 173 or equiv.)
Class: M 1:10-3:00 W, F 1:10-4:00 Irvine 040
Instructor: R. Patrick Hassett - Irvine 320; 593-2356; office hours by appointment
Text: Ruppert, Edward, and Robert Barnes. 2004. Invertebrate Zoology, 7th ed., Brooks/Cole, Belmont, CA. No lab manual is required.
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Content: The course is an introduction to most of the broad diversity of metazoan animals that lack backbones. We will cover all major and many minor invertebrate phyla, as well as several important protozoan phyla. Insects, spiders, and parasitic forms are treated only briefly, as these are covered in other courses devoted to these subjects. Lectures will present an overview of each phylum describing characteristic morphology, physiology, and reproduction, and emphasizing major developments in the evolution of invertebrates. Particular emphasis will be drawn towards taxa of significant ecological or evolutionary importance. Laboratories are designed to acquaint students with the different phyla using preserved, and, where possible, live specimens. Students will be expected to recognize the particular characteristics of an organism that will allow an accurate taxonomic placement.
The textbook (Ruppert, Fox, and Barnes Invertebrate Zoology) is a major rewrite of their textbook, incorporating new molecular evidence of phylogenetic relationships. It will provide a useful reference tool for the course, but we will not follow the text format in class; selected readings will be assigned from the text.
Grading: based 20% on each of two hourly exams during the quarter, 25% on the 2 hr final exam, 5% on reading assignment, and 10% on each of three laboratory exams. Lecture exams will be a mix of short essay questions (chosen from 6-7 possible questions), term definitions, and multiple choice/fill in the blank questions. Laboratory exams will parallel the lecture exams and will emphasize identification of taxonomic position of specimens and identification and function of labeled structures. Makeup exam requires 24 hr notification or note from doctor; content of makeup exam is at instructor's discretion.
Attendance is both recommended and expected.
Cases of academic dishonesty will be submitted to the student judiciary.
1/3 Introduction: The rise of the invertebrates; Protozoa.
1/5 Metazoa: modes of development; Origins of the Metazoa; Porifera.
1/7 Protozoa/Porifera Lab.
1/10 The Eumetazoa: Epithelia; Radial symmetry; the Cnidaria- Basic organization.
1/12 Colonial cnidarian organization Ctenophora.
1/14 Cnidaria Lab.
1/17 MLK birthday-no classes
1/19 Bilateria: Circulatory systems; Platyhelminths: Symmetry, cephalization, evolution. Nemertea
1/21 Appearance and significance of excretory systems. Turbellaria, Aschelminth Lab
1/24 Cycloneuralia: Nematoda, Gastrotricha, Kinorhyncha, Loricifera, Priapulida
1/26 Lecture exam I. Cycloneuralia (cont); Gnathifera: Rotifera
1/28 Lab Exam I
1/31 The Coelomates; Mollusca: Gastropoda, shell form and function
2/2 Mollusca: Bivalvia, the bivalve gill; Cephalopoda
2/4 Mollusk Lab
2/7 Non-segmented coelomate worms; Annelids: The significance of segmentation
2/9 Annelids: Polychaeta, Pogonophora, Oligochaeta, Hirudinea.
2/11 Annelid Lab.
2/14 Arthropods: Basic organization; Panarthropoda; Trilobita; Chelicerata.
2/16 Arthropods: insects, a brief review; Crustacea I- Primitive crustaceans.
2/18 Lab Exam II (Mollusks and Annelids); Crustacea II- Maxillopoda; Malacostraca.
2/21 Cryptobiosis.
2/23 Lecture Exam II.
2/25 Readings.
2/28 Crustacean Lab
3/2 Echinodermata I- Basic structure; Asteroidia, Ophiuroidea, Echinoidea.
3/4 Echinodermata II- Crinoidea, Holuthuroidea; Echinoderm Lab.
3/7 The Lophophorates; Chaetognatha; Protochordata.
3/9 Plankton Tow Lab.
3/11 Lab Exam III (Arthropods, Echinoderms, and Lophophorates); Presentations.
3/16 Final Exam: Wednesday 12:20
Videos presented during class:
Burgess Shale fauna
Shape of Life: Porifera, Cnidaria, Platyhelminths, Mollusks, Annelids, Echinoderms
Children of the Sea (sea urchin development)
Blue Planet (excerpts illustrating Reynold’s number and hydrothermal vent communities)
Suspended Animation (Anostracans)
Cryptic Fauna of Marine Sands