Group 6: Evolution (aka team Roadkill) Kirsten Deane-Coe, Jocelyne Dolce, Thomas Fox, Jan Janecka,...
If you can't read please download the document
Group 6: Evolution (aka team Roadkill) Kirsten Deane-Coe, Jocelyne Dolce, Thomas Fox, Jan Janecka, Kristina Jones, Brady Porter Hard data to swallow: an
Group 6: Evolution (aka team Roadkill) Kirsten Deane-Coe,
Jocelyne Dolce, Thomas Fox, Jan Janecka, Kristina Jones, Brady
Porter Hard data to swallow: an interrupted case study
Slide 2
Teachable Tidbit Learning Objectives Interpret scientific data
and draw conclusions Predict the response of a population to
selection Describe adaptation to change in environment Background
Information Teachable Unit Learning Goals See selection as an
ongoing, visible, and relevant process Understand how selection
works Resolve misconceptions about selection Intended Course:
Introductory Biology for majors or non-majors Unit: Selection
Slide 3
American cliff swallow (Petrochelidon pyrrhonota)
Slide 4
Average life span: 5-8 y Aerial insectivores Agile flyers Build
nests on cliffs, increasingly under bridges/overpasses Behavior:
rest on ground, launch into flight for feeding / return to
nests
Slide 5
Charles R. Brown and Mary B. Brown (2013) Current Biology
Slide 6
The figure drawn on the board depicts initial results from
Brown & Brown (2013) on the number of road-killed swallows
found over a 30 year period Turn to your neighbor, and take 2
minutes to: 1)Interpret the data shown 2)Develop at least one
hypothesis that would explain this trend
Slide 7
Brown & Brown 2013
Slide 8
Slide 9
In your group, take a minute to discuss what, if anything, this
histogram tells us Brown & Brown 2013
Slide 10
1) Copy and label the following set of axes onto the back of
the concept map handout: Time, years Wing length of living birds
19832012 2) Draw your prediction of wing length of live birds over
time if wing length is under selection
Slide 11
Average wing length of live swallows (mm) Brown & Brown
2013
Slide 12
Final activity / homework: revisit concept map Revisit the
concept map the class created last week (handout). The Brown &
Brown (2013) study published in Current Biology is provided for
your reference. Work with your partner to match the terms on p1 of
the the Cliff Swallow Case Study to the concepts in the map.
Slide 13
Variation in trait Selection pressure Differences in
survival/reproduction Heritability of trait Response to selection
Adaptation Concept map: evolution by natural selection A E B C
F
Slide 14
Group 6: Evolution (aka team Roadkill) Kirsten Deane-Coe,
Jocelyne Dolce, Thomas Fox, Jan Janecka, Kristina Jones, Brady
Porter Teachable Tidbit Learning Objectives: Interpret scientific
data and draw conclusions Describe adaptation to environmental
change Predict the response of a population to selection