BIO 25-SympatryREV - Outline Speciation- sympatry (updated...

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1 12/3/2008 1 Speciation- sympatry (updated Dec 3) Lecture 25 December 3 12/3/2008 2 Outline ± Announcements ± Sympatry ± May also have time for ring species example (allopatry from Monday) 12/3/2008 3 Final help sessions In addition to the ones previously announced Wed 1:30 - 2:30 pm SE3057 (except 10 minutes around 2pm to start lab test) Thur 2:10 – 3 pm KN137 I have added 8-9am Friday in SE3057 12/3/2008 4 Clicker marks are posted (& explanation of breakdown is in LECTURE folder) Clicker days % of total breakdown _ of 5% ± Sept 7 20 1% ± Oct 9 30 1.5 ± Nov 12 40 2.0 ± Dec 3 10 0.5 [actual total days = 31; calculations based on 30]
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2 12/3/2008 5 Lab tests, etc. ± Lab Test marks will be posted in Blackboard by Thursday, Dec 18 th [neither final exam or final marks will be posted] 12/3/2008 6 Tutorial quiz—available today (1pm) through Friday (9:30 am as usual) 12/3/2008 7 Outline Sympatry -species forming without geographical separation (Freeman 26.3) ± Habitat (including host) specificity ± Genome changes ² Autoploidy ² Alloploidy 12/3/2008 8 Requirements for speciation Isolation of gene pools of subgroups or populations within a species Evolutionary changes in one or both groups Development of reproductive isolation between these groups
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3 12/3/2008 9 Clicker: What is the defining feature of speciation? A. Separated populations B. Reproductive isolation C. Accumulated phenotypic differences D. Vicariance E. Variation in courtship 12/3/2008 10 Role of gene flow & natural selection in speciation What denotes evolutionarily independent? ± Begins
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This note was uploaded on 04/25/2010 for the course BIO BIO152 taught by Professor Cordon during the Fall '09 term at University of Toronto- Toronto.

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BIO 25-SympatryREV - Outline Speciation- sympatry (updated...

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