Objective: To explore
and understand the process of evolution including the concept of speciation
and its parts.
Video http://www.youtube.com/watch?v=2oKlKmrbLoU Speciation- Of Ligers & Men - Crash
What is the definition
of species?
What is speciation?
What conditions are
necessary for speciation to occur?
Name two places that
geographic isolation can occur. Describe
how this makes speciation possible.
Tell a story. Write this on the back, or on a separate piece of
paper.
Now
that you know all about how speciation happens in real life, write your own
speciation story. Your story should include the following details:
·
The following concepts should
be included in your story
o Genetic drift, bottleneck effect, founder
effect, gene flow, and/or mutation (include at least 1)
o Natural selection (directional (things move to
an extreme), stabilizing (things kind of average),, and/or diversifying (species
splits into two different)- include at least 1)
o Modes/mechanisms of speciation (e.g. geographic
speciation, Genetic barriers, temporal or reproductive isolation, etc - include
at least 1)
·
The background -
set the stage, describe the organisms involved - where do they live? what do
they look like? what do they eat? what is their life cycle?
·
The details of
the speciation event - set the stage and tell the story. What happened? How did
one species become multiple species? Your details should correspond to actual
modes and mechanisms of speciation you studied.
·
The aftermath -
what has changed? Again describe the organisms involved, now that a speciation
event has occurred. What's different, and what has remained the same?
