Case Study: Galapagos Island
Study Questions
1. How did the Galapagos Islands come into existence?
The origins were similar as the Hawaiian Island, somewhere in the sea nearby the Galapagos Rift there were hydrothermal vents belching sulphurous gases.
2. Were plate tectonics involved?
No.
3. How old are the Galapagos Islands?
450 years old.
4. What kinds of animals and plants are endemic to the islands?
The black iguana, seas were stingrays, white-tipped, sharks, sea turtles, and the Galapagos penguin. Dozens of endemic species were found.
5. How do species become endemic?
Because it has evolved that can surveyed in a specific religion or place.
6. Where did the original colonists come from and how did they get to the Galapagos? The Europeans, and yes they did get to the Galapagos by ship.
7. What kind of special adaptations do the animals and plants have? How do adaptations evolve?
Among the rocks at the water’s edge for iguana. Birds eat diff. types of food. Finches had specialized by using small sharp sticks to probe the recesses of cactus plants for grubs.
8. How did these islands figure into Darwin’s ideas on evolution?
Because it had a spectacular diversity. The island had solve the question of speed of evolution. By the adaptation.
Part 2: Darwin’s Finches
Study Questions
1. What is DNA fingerprinting and how is it done?
Data, gene from breeding pens. Is done by Southern Blot procedures or PCR.
2. How can we measure evolution?
By measuring the speed of evolution. It can’t be tested.
3. What is the difference between natural selection and evolution?
species adapt to the different conditions on the different ecosystem. Is not true to all natural selection.
4. What is genetic drift and how could it be involved in evolution?
The change in frequency of an allele. Certain individuals may leave behind more descendants than others by chance,
5. What is resource partitioning and character displacement?
Resource: is when species require different parts of the same resources.
Character ; phenomenon where differences among similar species distributions overlap geographically in regions where the species distributions do not overlap.
6. What is sexual selection?
Reference by one sex for certain characteristics in other sex. Both natural election and sexual selection were working in the same direction.
7. How might one test if beak size is due to genetic or environmental factors?
Producing birds with large beaks. Change the factor, and measures to see genetic, in their DNA to find size of the beak.
8. If hybridization occurs during good times, what does this suggest about the degree of genetic differences between species?
Changes were genetic.
The reproductive barriers kept the species distinct.
9. What are reproductive isolating mechanisms and how do they evolve?
In the species distinct. Differences in song and beak size. Prevents form reproducing. It makes a change in the environment.
10. Must populations of finches be separated in order to evolve into different species?
No.
11. What causes an El Niño?
Increased when environmental conditions shifted dramatically.
Part 3: The Tortoise and the Sea Cucumber
Study Questions
1. Should Kate have chosen to work on a different species than the tortoises that are being threatened? Her thesis work might be destroyed by the politics of the islands.
No, it was good that she worked on the tortoises, some else would have found out eventually, or would have done it.
2. Should Kate get involved in the politics of saving the islands, the way Dian Fossey did in trying to save the Mountain Gorilla?
If she really wants to save the island and it’s organism she should do it not matter the consequences.
3. Should fishing, tourism, or inhabitants be allowed in the islands?
No, because there are killing living organism.
4.How should the Ecuadorian government deal with the conflicts over the islands?
Giving a limited amount of fishes that can be caught.
5. Extinction is a natural phenomenon. Why should we worry about whether a few species on some remote islands in the Pacific survive or not?
Yes, because the species living the island are unique, this means that can’t be found or it will be difficult to found them in other island.
1. How did the Galapagos Islands come into existence?
The origins were similar as the Hawaiian Island, somewhere in the sea nearby the Galapagos Rift there were hydrothermal vents belching sulphurous gases.
2. Were plate tectonics involved?
No.
3. How old are the Galapagos Islands?
450 years old.
4. What kinds of animals and plants are endemic to the islands?
The black iguana, seas were stingrays, white-tipped, sharks, sea turtles, and the Galapagos penguin. Dozens of endemic species were found.
5. How do species become endemic?
Because it has evolved that can surveyed in a specific religion or place.
6. Where did the original colonists come from and how did they get to the Galapagos? The Europeans, and yes they did get to the Galapagos by ship.
7. What kind of special adaptations do the animals and plants have? How do adaptations evolve?
Among the rocks at the water’s edge for iguana. Birds eat diff. types of food. Finches had specialized by using small sharp sticks to probe the recesses of cactus plants for grubs.
8. How did these islands figure into Darwin’s ideas on evolution?
Because it had a spectacular diversity. The island had solve the question of speed of evolution. By the adaptation.
Part 2: Darwin’s Finches
Study Questions
1. What is DNA fingerprinting and how is it done?
Data, gene from breeding pens. Is done by Southern Blot procedures or PCR.
2. How can we measure evolution?
By measuring the speed of evolution. It can’t be tested.
3. What is the difference between natural selection and evolution?
species adapt to the different conditions on the different ecosystem. Is not true to all natural selection.
4. What is genetic drift and how could it be involved in evolution?
The change in frequency of an allele. Certain individuals may leave behind more descendants than others by chance,
5. What is resource partitioning and character displacement?
Resource: is when species require different parts of the same resources.
Character ; phenomenon where differences among similar species distributions overlap geographically in regions where the species distributions do not overlap.
6. What is sexual selection?
Reference by one sex for certain characteristics in other sex. Both natural election and sexual selection were working in the same direction.
7. How might one test if beak size is due to genetic or environmental factors?
Producing birds with large beaks. Change the factor, and measures to see genetic, in their DNA to find size of the beak.
8. If hybridization occurs during good times, what does this suggest about the degree of genetic differences between species?
Changes were genetic.
The reproductive barriers kept the species distinct.
9. What are reproductive isolating mechanisms and how do they evolve?
In the species distinct. Differences in song and beak size. Prevents form reproducing. It makes a change in the environment.
10. Must populations of finches be separated in order to evolve into different species?
No.
11. What causes an El Niño?
Increased when environmental conditions shifted dramatically.
Part 3: The Tortoise and the Sea Cucumber
Study Questions
1. Should Kate have chosen to work on a different species than the tortoises that are being threatened? Her thesis work might be destroyed by the politics of the islands.
No, it was good that she worked on the tortoises, some else would have found out eventually, or would have done it.
2. Should Kate get involved in the politics of saving the islands, the way Dian Fossey did in trying to save the Mountain Gorilla?
If she really wants to save the island and it’s organism she should do it not matter the consequences.
3. Should fishing, tourism, or inhabitants be allowed in the islands?
No, because there are killing living organism.
4.How should the Ecuadorian government deal with the conflicts over the islands?
Giving a limited amount of fishes that can be caught.
5. Extinction is a natural phenomenon. Why should we worry about whether a few species on some remote islands in the Pacific survive or not?
Yes, because the species living the island are unique, this means that can’t be found or it will be difficult to found them in other island.