Darwin's Finch Exploration
HS Science
Created on March 14, 2024
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Transcript
Immersive exploration to discover how finches lead to the theory of evolution by natural selection.
Galapagos Finches
start
An introduction to the Galapagos finches
Lesson information
Step 2:Dramatic Change
Use this data to make observations
Medium Ground Finches
Use this data to make observations
Weight
Explore this trait
Wing Length
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Beak Depth
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Beak Length
Explore this trait
In this lesson, you are going to walk in Darwin's footsteps to make observations and develop a hypothesis to explain the things you see.Start wtih the introduction information to learn about the different finch populations. Then analyze the dramatic change data to guide your exploration and development of a hypothesis.
Step 1: Introduction -->
Rainfall
Explore this information
Seed Production
Explore this information
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+Get to know the Finches
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Explanation
Severe Drought in 1977
The drought had dramatic impacts on the medium ground finch population with half of the 100 tagged finches dieing in the first year.
large ground finchG.magnirostris
The drought meant that there was no rain fall for long periods of time. The plant population suffered. The plants that were able to survive, did NOT have enough water to produce many seeds.
Seed production(food)
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Competition
Your task it to develop a claim, evidence, reasoning statement that describes why the population changed over such a short period of time.
This data shows the beak depth of the finch population on the galapagos island, Daphne Major in 1976 and 1978. What do you notice?
What happened!?
The data presented here is specific to the medium ground finch population. 100 medium ground finches were tagged and monitored over a 6 year period.
Finch Data
Rainfall in the Galapagos
Beak length of Medium Ground Finch
Beak depth data for Medium Ground finch
1976
1982
Wing Length of Medium Ground Finches
One year after drought
Weight of Medium Ground Finches
One year after drought
Why were so many medium ground finches dying in 1977?Be sure to explore the data found in this resource so your able to use evidence to justify your claim.
What happened!?
If you want additional support though this exploration, use these guiding questions to structure your data analysis.
Guiding Questions
There are 4 types of seeding plants on Daphne Major