Difference between revisions of "Evolutionary Biology Spring 2017"
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'''EEB 2245''': Each half of the course counts for 50% of your lecture grade. Your grade in the first half of | '''EEB 2245''': Each half of the course counts for 50% of your lecture grade. Your grade in the first half of | ||
− | the course will be based on your performance on two lecture exams (for a total of 200 points). Your grade in the second half of the course will be based on your performance on three lecture exams (180 points total) and weekly, short on-line quizzes (20 points) (for a total of 200 points). However, your grade for Exams1–4 will be dropped. '''Please note: because you are allowed to drop one of these grades, <i>we will not give make-up exams</i>.''' | + | the course will be based on your performance on two lecture exams (for a total of 200 points). Your grade in the second half of the course will be based on your performance on three lecture exams (180 points total) and weekly, short on-line quizzes (20 points) (for a total of 200 points). However, your lowest grade for Exams1–4 will be dropped. '''Please note: because you are allowed to drop one of these grades, <i>we will not give make-up exams</i>.''' |
'''EEB 2245W''': For W students your final grade in the lecture portion of the course will be calculated as above. This grade will constitute 75% of your final course grade. The W portion of the course, as determined by your “W” instructor, will constitute the remaining 25% of your final course grade. '''<i>Please note that an F in either the W or lecture portion of the course will result in an F for the entire course.</i>''' Dr. Paul Lewis (TLS 162; tel: 486–2069; paul.lewis@uconn.edu) is the coordinator of the W portion of the course. Refer to HuskyCT for further information on the W portion of the course. You will be assigned your W instructor at the mandatory library session you attend for the W portion of the course. You must sign up for a library session in HuskyCT by January 19th. | '''EEB 2245W''': For W students your final grade in the lecture portion of the course will be calculated as above. This grade will constitute 75% of your final course grade. The W portion of the course, as determined by your “W” instructor, will constitute the remaining 25% of your final course grade. '''<i>Please note that an F in either the W or lecture portion of the course will result in an F for the entire course.</i>''' Dr. Paul Lewis (TLS 162; tel: 486–2069; paul.lewis@uconn.edu) is the coordinator of the W portion of the course. Refer to HuskyCT for further information on the W portion of the course. You will be assigned your W instructor at the mandatory library session you attend for the W portion of the course. You must sign up for a library session in HuskyCT by January 19th. | ||
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==Announcements == | ==Announcements == | ||
− | Review Session Exam 1:Monday, February 6th 7:00-9:00 pm in BPB 130<br> | + | Review Session Exam 1: Monday, February 6th 7:00-9:00 pm in BPB 130<br> |
− | Review Sessions Exam 2: | + | Review Sessions Exam 2: Tuesday, February 28th 7:00-9:00 pm in BPB 131AND Wednesday, March 1st 7:00-9:00 pm in BPB 131 |
+ | Review Sessions Exam 3: Monday April 3rd 7:00-9:00 pm in BPB 130 AND Wednesday, April 5th 7:00-9:00 pm in BPB 130 | ||
− | + | <br> | |
+ | <span style="font-size: medium"><font color="#f6990a">'''Review Sessions Exam 4 and Final:''' </font color="#f6990a"> | ||
+ | |||
+ | '''Wednesday April 26th 7pm - 9pm BPB 130''' - material covered: Lectures 13-18 (Exam 3 and Final)<br> | ||
+ | '''Thursday April 27th 7pm - 9pm BPB 130''' - material covered: Lectures 19-25 (Exam 4 and Final)<br> | ||
+ | '''Saturday April 29th 1:30pm - 3:30pm TLS 154''' - material covered: Lectures 19-25 (Exam 4 and Final) | ||
==Past Exams, Study Guides & Other Documents== | ==Past Exams, Study Guides & Other Documents== | ||
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{{pdf|http://hydrodictyon.eeb.uconn.edu/eebedia/images/0/03/Five_most_serious_threats_2017.pdf}} Five Most Serious Threats to the World<br> | {{pdf|http://hydrodictyon.eeb.uconn.edu/eebedia/images/0/03/Five_most_serious_threats_2017.pdf}} Five Most Serious Threats to the World<br> | ||
{{pdf|http://hydrodictyon.eeb.uconn.edu/eebedia/images/b/bb/Study_Guide_Week_I_EEB_2245_F_17.pdf}} Study Guide Lectures 13-14<br> | {{pdf|http://hydrodictyon.eeb.uconn.edu/eebedia/images/b/bb/Study_Guide_Week_I_EEB_2245_F_17.pdf}} Study Guide Lectures 13-14<br> | ||
− | {{pdf|http://hydrodictyon.eeb.uconn.edu/eebedia/images/c/c7/Study_Guide_week_2%2C_Lectures_15_-_16_Variation%2C_inbreeding%2C_drift.pdf}} Study Guide Lectures 15-16 - Variation, inbreeding, drift | + | {{pdf|http://hydrodictyon.eeb.uconn.edu/eebedia/images/c/c7/Study_Guide_week_2%2C_Lectures_15_-_16_Variation%2C_inbreeding%2C_drift.pdf}} Study Guide Lectures 15-16 - Variation, inbreeding, drift <br> |
+ | {{pdf|http://hydrodictyon.eeb.uconn.edu/eebedia/images/9/90/Enhanced_Study_Guide_weeks_2_and_3%2C_Lectures_15_-_18_Variation%2C_inbreeding%2C_drift%2C_gene_flow%2C_neutral_theory.pdf}} Enhanced Study Guide Weeks 2 and 3 (Lectures 15 - 18)<br> | ||
+ | <span style="font-size: medium"><font color="#0000FF"><i>'''NEW'''</i></font color="#0000FF"></span style="font-size: medium"> {{pdf|http://hydrodictyon.eeb.uconn.edu/eebedia/images/0/0f/Study_guide_Lectures_19_20_and_21.pdf}} '''Study Guide Lectures 19, 20 and 21'''<br> | ||
+ | <span style="font-size: medium"><font color="#0000FF"><i>'''NEW'''</i></font color="#0000FF"></span style="font-size: medium"> | ||
+ | {{pdf|http://hydrodictyon.eeb.uconn.edu/eebedia/images/f/ff/Study_Guide_Lectures_22_and_23_Species_Concepts%2C_Speciation_Mechanisms_Sp_17.pdf}} '''Study Guide Lectures 22 and 23''' <br> | ||
+ | <span style="font-size: medium"><font color="#0000FF"><i>'''NEW'''</i></font color="#0000FF"></span style="font-size: medium"> | ||
+ | {{pdf|http://hydrodictyon.eeb.uconn.edu/eebedia/images/7/76/StudyGuideLectures_24_and_25_ParapatricSympatricSpeciationHybridizationSp17.pdf}} '''Study Guide Lectures 24 and 25''' | ||
==Lecture Schedule== | ==Lecture Schedule== | ||
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− | |style="text-align:center;"|13|| T Mar 7 || What is Evolution. Why is it useful? || {{pdf|http://hydrodictyon.eeb.uconn.edu/eebedia/images/3/3c/Lecture_13._Intro_to_Evolutionary_Biology_7_Mar_17_one_per_page.pdf}} <font color="#0000FF">Lecture 13 Notes | + | |style="text-align:center;"|13|| T Mar 7 || What is Evolution. Why is it useful? || {{pdf|http://hydrodictyon.eeb.uconn.edu/eebedia/images/3/3c/Lecture_13._Intro_to_Evolutionary_Biology_7_Mar_17_one_per_page.pdf}} <font color="#0000FF">Lecture 13 Notes </font color="#0000FF"> |
|- | |- | ||
|- | |- | ||
− | |style="text-align:center;"|14|| Th Mar 9 || Evolution vs Creationism. What is science? Refuting Creationist arguments. [http://www.law.umkc.edu/faculty/projects/ftrials/scopes/scopes.htm The Monkey Trial] || Ch. 1 (pp. 1–3) and Ch. 23 (pp. 646–655){{pdf|http://hydrodictyon.eeb.uconn.edu/eebedia/images/a/a3/Lecture_14._Uses_%28cont.%29%2C_Evolution_v_Creationism_Sp_17_to_post_one_per_page.pdf}} <font color="#0000FF">Lecture 14 Notes | + | |style="text-align:center;"|14|| Th Mar 9 || Evolution vs Creationism. What is science? Refuting Creationist arguments. [http://www.law.umkc.edu/faculty/projects/ftrials/scopes/scopes.htm The Monkey Trial] || Ch. 1 (pp. 1–3) and Ch. 23 (pp. 646–655)<br>{{pdf|http://hydrodictyon.eeb.uconn.edu/eebedia/images/a/a3/Lecture_14._Uses_%28cont.%29%2C_Evolution_v_Creationism_Sp_17_to_post_one_per_page.pdf}} <font color="#0000FF">Lecture 14 Notes</font color="#0000FF"> |
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− | |style="text-align:center;"|15|| T Mar 21 || | + | |style="text-align:center;"|15|| T Mar 21 || Deviation from Mendelian Ratios. Sources of phenotypic variation. Variation due to the environment,phenotypic plasticity, common gardens. Epigenetic inheritance, variation in natural populations, The Hardy-Weinberg equation: Why do we care? || Ch. 9 (to p. 235); Review Chapter 8 (basic genetics) on your own, especially pp. 208–209, mutation as a random process. <br>{{pdf|http://hydrodictyon.eeb.uconn.edu/eebedia/images/4/45/Lecture_15._Deviations_from_Mendel-_HWintro_21_Mar17_one_per_page.pdf}} <font color="#0000FF">Lecture 15 Notes </font color="#0000FF"><br> {{pdf|http://hydrodictyon.eeb.uconn.edu/eebedia/images/b/be/Hardy-Weinberg_Derivation.fills_missing_steps_in_Futuyma.pdf}}'''Hardy-Weinberg derivation''' |
+ | |- | ||
+ | |- | ||
|- | |- | ||
+ | |style="text-align:center;"|16|| Th Mar 23 || Is variability rare in natural populations? Lewontin & Hubby, understanding deviations from HW ratios, effects of non-random mating, Inbreeding. Conservation biology and purging.The Erosion of Genetic Variability by inbreeding. Genetic drift. || CH. 10<br> {{pdf|http://hydrodictyon.eeb.uconn.edu/eebedia/images/6/61/Lecture_16._Hardy-Weinberg-Inbreeding%2C_Drift._23_Mar17_one_per_page.pdf}} <font color="#0000FF">Lecture 16 Notes </font color="#0000FF"> | ||
|- | |- | ||
|- | |- | ||
− | |style="text-align:center;"| | + | | style="text-align:center;"|17|| T Mar 28 || Consequences for conservation biology, Effective population size. Bottlenecks, founder events, gene flow models; gene flow studies. || Chs. 10 & 11 <br>{{pdf|http://hydrodictyon.eeb.uconn.edu/eebedia/images/3/3c/Lecture_17._Drift%2C_Ne%2C_Gene_Flow._28Mar17_one_per_page.pdf}} <font color="#0000FF">Lecture 17 Notes </font color="#0000FF"> |
|- | |- | ||
|- | |- | ||
− | | style="text-align:center;"| | + | | style="text-align:center;"|18|| Th Mar 30 || Geneflow x selection x drift. The interaction of ecology, climate, gene flow, bottlenecks. Northern purity/southern richness. Neutral theory. || Chs. 11 <br>{{pdf|http://hydrodictyon.eeb.uconn.edu/eebedia/images/d/df/Lecture_18._Ecology%2C_climate%2C_gene_flow%2C_drift%2C_neutral_theory_29_Mar_17.pdf}} <font color="#0000FF">Lecture 18 Notes </font color="#0000FF"> |
|- | |- | ||
|- | |- | ||
− | | style="text-align:center;"| | + | | style="text-align:center;"|19|| T Apr 4 || Selection at the molecular level, continued. Introduction to selection, directional selection and the environment. Competitive character displacement || Chs. 11 & 12 <br>{{pdf|http://hydrodictyon.eeb.uconn.edu/eebedia/images/f/ff/Lecture_19._Selection_4_Apr_2017r_.pdf}} <font color="#0000FF">Lecture 19 Notes</font color="#0000FF"> |
|- | |- | ||
|- | |- | ||
− | | | + | | || Th Apr 6 ||'''EXAM #3''' (COVERS LECTURES 13–18) || |
|- | |- | ||
|- | |- | ||
− | | || | + | |style="text-align:center;"|20|| T Apr 11 || Selection (continued). Experimental character displacement, interaction of directional selection and the abiotic and biotic environment, runaway sexual selection, the importance of heritability, multiple niche polymorphisms, frequency dependent selection, balancing selection. Introduction to geographic variation. Character variation, parallel and perpendicular clines, geographic races of rat snakes and cicadas. Causes for clines. Human variation and the concept of Race. || Chs. 9 (again), 17 & 18. <br> {{pdf|http://hydrodictyon.eeb.uconn.edu/eebedia/images/b/be/Lecture_20._Selection%2C_Geogr._Var._Apr_2017_one_per_page.pdf}} <font color="#0000FF">Lecture 20 Notes</font color="#0000FF"> |
|- | |- | ||
|- | |- | ||
− | |style="text-align:center;"| | + | |style="text-align:center;"|21|| Th Apr 13 || Ring species. Factors that inhibit gene flow; pre-mating isolation: Mating colors & dances, aggressive mimicry. Mating songs.Post-mating and pre-zygotic: lock & key vs sexual selection and cryptic female choice, sperm-egg contact, natural selection at the molecular level. Post-mating and post-zygotic reproductive isolation, sterile hybrids. Post-mating and post-zygotic reproductive isolation (cont'd.), parasitic sterility, polyploids. || Ch. 17 <br> {{pdf|http://hydrodictyon.eeb.uconn.edu/eebedia/images/e/e0/Lecture_21_Geogr_Var_Factors_reducing_gene_flow13Apr2017.ppt.pdf}} <font color="#0000FF">Lecture 21 Notes</font color="#0000FF"> |
|- | |- | ||
|- | |- | ||
− | |||
|- | |- | ||
+ | |style="text-align:center;"|22|| T Apr 18 || Speciation: The origin of biodiversity. Species concepts: typological, biological, phylogenetic, cohesion. Practical considerations: large biodiversity studies versus detailed studies of specific genera. || Chs. 17 & 18 <br>{{pdf|http://hydrodictyon.eeb.uconn.edu/eebedia/images/b/b2/Lecture_22_factors_%28cont%29_species_concepts_18Apr17.pdf}} <font color="#0000FF">Lecture 22 Notes</font color="#0000FF"> | ||
|- | |- | ||
− | |||
|- | |- | ||
+ | |style="text-align:center;"|23|| Th Apr 20 || Speciation Mechanisms: categories of speciation mechanisms. Butlin’s 2008 Table of speciation events over time. Allopatric, peripheral isolates, founder event speciation, reproductive character displacement, reinforcement. Periodical cicada case study. Allochronic speciation, contact zones, reproductive character displacement. || Chs. 17, 18 & 19 pp. 531–533. <br>{{pdf|http://hydrodictyon.eeb.uconn.edu/eebedia/images/f/fd/Lecture_23_Speciation_mechanisms_20Apr17_updated.pdf}} <font color="#0000FF">Lecture 23 Notes</font color="#0000FF"> | ||
|- | |- | ||
− | |||
|- | |- | ||
|- | |- | ||
− | |style="text-align:center;"|24|| T Apr 25 || Speciation Mechanisms (cont.): Allochronic speciation, contact zones, reproductive character displacement (cont'd). Parapatric speciation, speciation with gene flow, North American chipmunk examples, sympatric speciation; host races. Translocations, polyploidy, polyphyletic species of Hyla. || | + | |style="text-align:center;"|24|| T Apr 25 || Speciation Mechanisms (cont.): Allochronic speciation, contact zones, reproductive character displacement (cont'd). Parapatric speciation, speciation with gene flow, North American chipmunk examples, sympatric speciation; host races. Translocations, polyploidy, polyphyletic species of Hyla. || {{pdf|http://hydrodictyon.eeb.uconn.edu/eebedia/images/a/ae/Lecture24SpeciationMechanisms25Apr17.pdf}} <font color="#0000FF">Lecture 24 Notes</font color="#0000FF"> |
|- | |- | ||
|- | |- | ||
− | |style="text-align:center;"|25|| Th apr 27 || Parallel speciation. Chromosomal speciation with hybridization; co-adapted allele complexes. Sunflowers. || | + | |style="text-align:center;"|25|| Th apr 27 || Parallel speciation. Chromosomal speciation with hybridization; co-adapted allele complexes. Sunflowers. || Chs. 17, 18 & 19 pp. 531–533. <br> {{pdf|http://hydrodictyon.eeb.uconn.edu/eebedia/images/7/7d/Lecture25SpeciationMechanisms_cont_Hybridization27Apr17updated.pdf}} <font color="#0000FF">Lecture 25 Notes</font color="#0000FF"> |
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Latest revision as of 16:11, 27 April 2017
EEB 2245/2245W
Evolutionary Biology
Contents
Course Overview & Syllabus
Meeting Time: Tuesdays and Thursdays, 9:30-10:45 am in TLS 154
Textbook: Futuyma, D.J. 2013. Evolution. 3rd ed. Sinauer Associates, Inc. (ISBN 978-1-60535-115-5)
Assigned readings are indicated below. Please read assigned chapters prior to coming to class.
Goal:The goal of this class is to teach the basic principles of evolutionary biology and the history of life on earth.
This website contains information for the lecture portion of the course only.
Please see HuskyCT for materials for the W portion of the course.
Lecture Instructors
Dr. Janine N. Caira (Lectures 1–12)
Office: TLS 483
Phone: 486-4060
Office hours: by arrangement
Dr. Chris Simon (Lectures 13–25)
Office: Biopharm 305D
Phone: 486-4640
Office hours: by arrangement
Note: All emails must contain "EEB2245" in the subject line to avoid being filtered out and deleted
Teaching Assistants
Veronica Bueno | Katherine Nazario | |
Office: TLS 478 | Office: BioPharm 323A | |
Phone: 486-1882 | Phone: 486-3947 | |
Students with last names A–K | Students with last name L–Z | |
office hours: by arrangement | office hours: by arrangement |
Grading
EEB 2245: Each half of the course counts for 50% of your lecture grade. Your grade in the first half of the course will be based on your performance on two lecture exams (for a total of 200 points). Your grade in the second half of the course will be based on your performance on three lecture exams (180 points total) and weekly, short on-line quizzes (20 points) (for a total of 200 points). However, your lowest grade for Exams1–4 will be dropped. Please note: because you are allowed to drop one of these grades, we will not give make-up exams.
EEB 2245W: For W students your final grade in the lecture portion of the course will be calculated as above. This grade will constitute 75% of your final course grade. The W portion of the course, as determined by your “W” instructor, will constitute the remaining 25% of your final course grade. Please note that an F in either the W or lecture portion of the course will result in an F for the entire course. Dr. Paul Lewis (TLS 162; tel: 486–2069; paul.lewis@uconn.edu) is the coordinator of the W portion of the course. Refer to HuskyCT for further information on the W portion of the course. You will be assigned your W instructor at the mandatory library session you attend for the W portion of the course. You must sign up for a library session in HuskyCT by January 19th.
Announcements
Review Session Exam 1: Monday, February 6th 7:00-9:00 pm in BPB 130
Review Sessions Exam 2: Tuesday, February 28th 7:00-9:00 pm in BPB 131AND Wednesday, March 1st 7:00-9:00 pm in BPB 131
Review Sessions Exam 3: Monday April 3rd 7:00-9:00 pm in BPB 130 AND Wednesday, April 5th 7:00-9:00 pm in BPB 130
Review Sessions Exam 4 and Final:
Wednesday April 26th 7pm - 9pm BPB 130 - material covered: Lectures 13-18 (Exam 3 and Final)
Thursday April 27th 7pm - 9pm BPB 130 - material covered: Lectures 19-25 (Exam 4 and Final)
Saturday April 29th 1:30pm - 3:30pm TLS 154 - material covered: Lectures 19-25 (Exam 4 and Final)
Past Exams, Study Guides & Other Documents
PART I
Example Exam 1 EEB 2245
Updated Study Guide Exam 1
Systematics Terminology handout
Tree Building Exercise
Updated Study Guide Exam 2
Example Exam 2 EEB 2245
PART II
Five Most Serious Threats to the World
Study Guide Lectures 13-14
Study Guide Lectures 15-16 - Variation, inbreeding, drift
Enhanced Study Guide Weeks 2 and 3 (Lectures 15 - 18)
NEW Study Guide Lectures 19, 20 and 21
NEW
Study Guide Lectures 22 and 23
NEW
Study Guide Lectures 24 and 25
Lecture Schedule
Please read assigned chapters, as indicated below, prior to class
This schedule is subject to change. Check regularly for updates!
Lecture | Date | Topic | Readings |
---|---|---|---|
PART I: EVOLUTIONARY PATTERNS (CAIRA) | |||
1 | T Jan 17 | Introduction to the Geological Time Scale; the Fossil Record | Ch. 4 (pp. 77–81) |
2 | Th Jan 19 | Life in the Precambrian; evolution of the Metazoa | Ch. 5 (pp. 103–110) |
3 | T Jan 24 | Cambrian explosion & Life in the Paleozoic | Ch. 5 (pp. 111–119) |
4 | Th Jan 26 | Life in the Mesozoic | Ch. 5 (pp. 119–125) |
5 | T Jan 31 | Life in the Cenozoic | Ch. 5 (pp. 125–132) |
6 | Th Feb 2 | Evolution of primates | Ch. 4 (pp. 90–95) |
T Feb 7 | EXAM #1 (COVERS LECTURES 1–6) | ||
7 | Th Feb 9 | Evolution of biodiversity & extinction - SNOW DAY | Ch. 7 |
8 | T Feb 14 | Characters, homology & homoplasy | Ch. 3 (pp. 51–63) |
9 | Th Feb 16 | Systematics & reconstructing evolutionary history | Ch. 2 |
10 | T Feb 21 | Evolution and development | Ch. 3 (pp. 63–66) & Ch. 21 |
11 | Th Feb 23 | Biogeography & major patterns of distribution | Ch. 5 (pp. 129–132) & Ch. 6 |
12 | T Feb 28 | Continental drift & Historical Biogeography | Ch. 6 |
Th Mar 2 | EXAM #2 (COVERS LECTURES 7–12) | ||
Part II: EVOLUTIONARY PROCESSES (SIMON) See HuskyCT for weekly quizzes, periodic updates that track progress & introduce late breaking topics. | |||
13 | T Mar 7 | What is Evolution. Why is it useful? | ![]() |
14 | Th Mar 9 | Evolution vs Creationism. What is science? Refuting Creationist arguments. The Monkey Trial | Ch. 1 (pp. 1–3) and Ch. 23 (pp. 646–655)![]() |
T Mar 14 | SPRING BREAK | ||
Th Mar 16 | SPRING BREAK | ||
15 | T Mar 21 | Deviation from Mendelian Ratios. Sources of phenotypic variation. Variation due to the environment,phenotypic plasticity, common gardens. Epigenetic inheritance, variation in natural populations, The Hardy-Weinberg equation: Why do we care? | Ch. 9 (to p. 235); Review Chapter 8 (basic genetics) on your own, especially pp. 208–209, mutation as a random process. ![]() ![]() |
16 | Th Mar 23 | Is variability rare in natural populations? Lewontin & Hubby, understanding deviations from HW ratios, effects of non-random mating, Inbreeding. Conservation biology and purging.The Erosion of Genetic Variability by inbreeding. Genetic drift. | CH. 10![]() |
17 | T Mar 28 | Consequences for conservation biology, Effective population size. Bottlenecks, founder events, gene flow models; gene flow studies. | Chs. 10 & 11 ![]() |
18 | Th Mar 30 | Geneflow x selection x drift. The interaction of ecology, climate, gene flow, bottlenecks. Northern purity/southern richness. Neutral theory. | Chs. 11 ![]() |
19 | T Apr 4 | Selection at the molecular level, continued. Introduction to selection, directional selection and the environment. Competitive character displacement | Chs. 11 & 12 ![]() |
Th Apr 6 | EXAM #3 (COVERS LECTURES 13–18) | ||
20 | T Apr 11 | Selection (continued). Experimental character displacement, interaction of directional selection and the abiotic and biotic environment, runaway sexual selection, the importance of heritability, multiple niche polymorphisms, frequency dependent selection, balancing selection. Introduction to geographic variation. Character variation, parallel and perpendicular clines, geographic races of rat snakes and cicadas. Causes for clines. Human variation and the concept of Race. | Chs. 9 (again), 17 & 18. ![]() |
21 | Th Apr 13 | Ring species. Factors that inhibit gene flow; pre-mating isolation: Mating colors & dances, aggressive mimicry. Mating songs.Post-mating and pre-zygotic: lock & key vs sexual selection and cryptic female choice, sperm-egg contact, natural selection at the molecular level. Post-mating and post-zygotic reproductive isolation, sterile hybrids. Post-mating and post-zygotic reproductive isolation (cont'd.), parasitic sterility, polyploids. | Ch. 17 ![]() |
22 | T Apr 18 | Speciation: The origin of biodiversity. Species concepts: typological, biological, phylogenetic, cohesion. Practical considerations: large biodiversity studies versus detailed studies of specific genera. | Chs. 17 & 18 ![]() |
23 | Th Apr 20 | Speciation Mechanisms: categories of speciation mechanisms. Butlin’s 2008 Table of speciation events over time. Allopatric, peripheral isolates, founder event speciation, reproductive character displacement, reinforcement. Periodical cicada case study. Allochronic speciation, contact zones, reproductive character displacement. | Chs. 17, 18 & 19 pp. 531–533. ![]() |
24 | T Apr 25 | Speciation Mechanisms (cont.): Allochronic speciation, contact zones, reproductive character displacement (cont'd). Parapatric speciation, speciation with gene flow, North American chipmunk examples, sympatric speciation; host races. Translocations, polyploidy, polyphyletic species of Hyla. | ![]() |
25 | Th apr 27 | Parallel speciation. Chromosomal speciation with hybridization; co-adapted allele complexes. Sunflowers. | Chs. 17, 18 & 19 pp. 531–533. ![]() |
Mon May 1st 8am -10am TLS 154 |
Final Exam Week EXAM #4 (COVERS LECTURES 20–25) & EXAM #5* (COVERS LECTURES 13–25) |