1. Exponential Growth of the Feral Goats in Galapagos vs. Exponential Decay of the Condors in the Andes Sara Pacini, Daniela Rodriguez, Elisa Ribadeneira, Emilio Azanza

2. Did You Know: Did you know that the feral goats in Galapagos caused the extinction of an entire specie of turtles? Did you know that the number of condors in Ecuador has decreased from 200 or more to less than 50?

3. Background Information of Feral Goats: They can bring diseases, affect the environment they are now living on. They can bring diseases, affect the environment they are now living on. Goats were severe brought to the islands by fisherman's, pirates, and whalers. Goats were severe brought to the islands by fisherman's, pirates, and whalers. In Pinta island the goats were introduced in 1959 by Bernardo Guiterrez. In Pinta island the goats were introduced in 1959 by Bernardo Guiterrez. Goats reproduce double and makes their reproduction to be even quicker. Goats reproduce double and makes their reproduction to be even quicker. Besides reproducing quickly, goats don’t have any predators. Besides reproducing quickly, goats don’t have any predators.

4. Background Information of the Condors: The Condors usually laid 1 or 2 eggs per year. The Condors usually laid 1 or 2 eggs per year. In the year 1991 the Condor population 200. In the year 1991 the Condor population 200. Since the 2000 it is in critically endangered. Since the 2000 it is in critically endangered. One reason of the decline is the destruction of their nesting grounds and habitat. One reason of the decline is the destruction of their nesting grounds and habitat. The lack of food, persecution by humans and poisoning are other reasons of the decline. The lack of food, persecution by humans and poisoning are other reasons of the decline. People go 5 years to jail if persecuting. People go 5 years to jail if persecuting.

5. Math Lab Info (Growth): Our research question was: The suden increased of the feral goats? Our research question was: The suden increased of the feral goats? We obatain the equation by finding the gowth factor according to the values we saw on the table. We obatain the equation by finding the gowth factor according to the values we saw on the table. Goats increase rapidly so the equation is exponential which includes an initial amount. Goats increase rapidly so the equation is exponential which includes an initial amount. The graph represented the clear values of the equation and the constant increase of the population. The graph represented the clear values of the equation and the constant increase of the population.

6. Goat’s Lab: Table: Graph: Equation: Equation: p=3(2.083) p: population t: time

7. Math Lab Info (Decay): Our research question was: Each year how many condor have decay? Our research question was: Each year how many condor have decay? Table has a decrease factor, the population decreases each year. Table has a decrease factor, the population decreases each year. Exponential equation has initial amount and the decay factor multiplied by each year. Exponential equation has initial amount and the decay factor multiplied by each year. Graph shows the decrease of the population each year. Graph shows the decrease of the population each year.

8. Condor’s Lab: Table: Graph: Equation: P= 200(0.72 t ) P: Population of Condors T: Time in Years (Starting 1991)

9. How we found the decay factor:

10. Conclusions: The Condor Population decreased each year and only a few are left. The Condor Population decreased each year and only a few are left. They are great example of how an exponential equation can be represented by using a decay factor. They are great example of how an exponential equation can be represented by using a decay factor. The Goat Population increase each year is impresive and the problema is how to get rid of so many of them. The Goat Population increase each year is impresive and the problema is how to get rid of so many of them. They are a clear example of how an exponential equation can be represented using a growth factor. They are a clear example of how an exponential equation can be represented using a growth factor. Both of these situtions relate to exponential equations but in two different situations Both of these situtions relate to exponential equations but in two different situations

11. Apa Citation: Repositorio Digital Universidad de Guayaquil (n.d) Accessed April 28, 2015. Retrieved from http://repositorio.ug.edu.ec/ Repositorio Digital Universidad de Guayaquil (n.d) Accessed April 28, 2015. Retrieved from http://repositorio.ug.edu.ec/ http://repositorio.ug.edu.ec/ Galapagos Conservancy Blog. Galapagos Conservancy. (n.d) Accessed April 28, 2015. Retrieved from http://www.galapagos.org/conservation/project- isabela/ Galapagos Conservancy Blog. Galapagos Conservancy. (n.d) Accessed April 28, 2015. Retrieved from http://www.galapagos.org/conservation/project- isabela/ http://www.galapagos.org/conservation/project- isabela/ http://www.galapagos.org/conservation/project- isabela/

12. How we worked the equation: