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Bioe 109 Evolution Fall 2015
Bioe 109 Evolution Fall 2015
Prerequisites:
Bio 20A, 20B, 20C, and Bio 105 (Genetics)
Bioe 109 Evolution Fall 2015
Prerequisites:
Bio 20A, 20B, 20C, and Bio 105 (Genetics)
Textbook:
Evolutionary Analysis, 5th Edition by Jon C. Herron and Scott Freeman.
Bioe 109 Evolution Fall 2015
Prerequisites:
Bio 20A, 20B, 20C, and Bio 105 (Genetics)
Textbook:
Evolutionary Analysis, 5th Edition by Jon C. Herron and Scott Freeman. Web sites:
For class: http://courses.pbsci.ucsc.edu/eeb/bioe109/
Teaching
Giacomo Bernardi ([email protected]) Gabriel Caetano ([email protected]) Rachel Holser ([email protected]) Diana Ruiz ([email protected]) Claudio Rojas ([email protected])
Overview of Grading System
Overview of Grading System (tentative)
Discussion sections: 20%
Midterm exam: 40%
Final exam: 40%
Discussion sections
Natsci Annex 103/102
(A) Tue 2:00-3:10pm, (B) Tue 6:00-7:10 pm (C) Tue 7:30-8:40 pm
(D) Thu 8:30-9:40 am (E) Fri 8:00-9:10am (F) Fri 9:30-10:40am
Section Info - focus on discussing papers from the primary research literature.
Section Info - focus on discussing papers from the primary research literature.
- there will be 2 assignments (3 pages) each worth 10 pts (20 pts total).
- participation and section performance worth another 10 pts.
BioE 109 Evolution Fall 2015
Charles Darwin 1809 - 1882 Alfred Russell Wallace 1823 – 1913
Evolution – fact or theory?
Evolution – fact or theory? - the term “theory” has a very different meaning in colloquial speech than in science.
Evolution – fact or theory? - the term “theory” has a very different meaning in colloquial speech than in science.
Colloquial or everyday speech: “conjecture” or “speculation” (e.g., my pet theory for…)
Evolution – fact or theory? - the term “theory” has a very different meaning in colloquial speech than in science.
Colloquial or everyday speech: “conjecture” or “speculation” (e.g., my pet theory for…)
Science: “a statement of what are held to be general laws, principles, or causes of something known or observed”
Examples of scientific theories: ● Heliocentric theory ● Big Bang theory ● Atom theory ● Giant impact theory ● Quantum theory ● Plate tectonics theory ● Special theory of relativity ● Cell theory ● The theory of evolution
Public acceptance of evolution
Public acceptance of evolution
Is the following statement true, false, or are not sure or don’t know?
“Human beings, as we know them, developed from earlier species of animals”. See Miller et al. 2006, Science 313: 765.
See Miller et al. 2006, Science 313: 765
Creation Museum Kentucky
What is Evolution?
What is Evolution?
What is Evolution? - in general usage “evolution” = “change”.
What is Evolution? - in general usage “evolution” = “change”.
- origin from Latin “evolvere” meaning to “unfold or disclose”.
What is Evolution? - in general usage “evolution” = “change”.
- origin from Latin “evolvere” meaning to “unfold or disclose”. - first biological use of “evolution” was by embryologists in the 18th century (e.g., Haller, Bonnet).
Definition 1 (from Ernst Mayr): “change in a population over time of the proportions of individual organisms that differ in one, or more, genetically-determined traits”.
Definition 2 (from Theodosius Dobzhanksy): “the transformation of genetic variation originally present within populations into variation between populations in both space and time”.
How does the study of evolution differ from other areas of biology?
How does the study of evolution differ from other areas of biology?
1. Method of study: inference based on the “comparative” versus “experimental” method.
How does the study of evolution differ from other areas of biology?
1. Method of study: inference based on the “comparative” versus “experimental” method. - evolutionary biologists commonly use the hypothetico-deductive method.
How does the study of evolution differ from other areas of biology?
2. Types of questions asked: “proximate” versus “ultimate” causations (Mayr 1961).
How does the study of evolution differ from other areas of biology?
2. Types of questions asked: “proximate” versus “ultimate” causations (Mayr 1961). - “functional biologists” (e.g., physiologists, molecular biologists, etc.) ask “proximate” questions.
How does the study of evolution differ from other areas of biology?
2. Types of questions asked: “proximate” versus “ultimate” causations (Mayr 1961). - “functional biologists” (e.g., physiologists, molecular biologists, etc.) ask “proximate” questions. - these questions usually begin with “how”.
How does the study of evolution differ from other areas of biology?
2. Types of questions asked: “proximate” versus “ultimate” causations (Mayr 1961). - “functional biologists” (e.g., physiologists, molecular biologists, etc.) ask “proximate” questions. - these questions usually begin with “how”. - evolutionary biologists ask “ultimate” questions.
How does the study of evolution differ from other areas of biology?
2. Types of questions asked: “proximate” versus “ultimate” causations (Mayr 1961). - “functional biologists” (e.g., physiologists, molecular biologists, etc.) ask “proximate” questions. - these questions usually begin with “how”. - evolutionary biologists ask “ultimate” questions. - these questions usually begin with “why”.
Objectives of the Course
Objectives of the Course
1. To foster “evolutionary thinking”.
Objectives of the Course
1. To foster “evolutionary thinking”. 2. To foster an understanding of organisms in the context of their evolutionary histories.
Objectives of the Course
1. To foster “evolutionary thinking”. 2. To foster an understanding of organisms in the context of their evolutionary histories. 3. To realize the potential and the limits of evolutionary change within species.
Objectives of the Course
1. To foster “evolutionary thinking”. 2. To foster an understanding of organisms in the context of their evolutionary histories. 3. To realize the potential and the limits of evolutionary change within species. 4. To appreciate that, like a tinkerer, evolution has no ultimate goal in mind.