The galapagos islands


Published on

  • Be the first to comment

  • Be the first to like this

No Downloads
Total views
On SlideShare
From Embeds
Number of Embeds
Embeds 0
No embeds

No notes for slide

The galapagos islands

  1. 1. The Galapagos Islands A Virtual Tour By Fabian Lange
  2. 2. 1. General Description 2. What is so special about them? 3. Darwin‘s Observations 4. Evolution 5. Threats Content
  3. 3. The famous Galapagos Islands are a group of 19 volcanic islands in the Pacific Ocean, about 1000 km away from the South American Continent. Lie around the Equator Part of Ecuador Form an Ecuadorean Province Official Language: Spanish Population: 25,000 General Description
  4. 4. Discovered by Fray Tomás de Berlanga, the fourth Bishop of Panama High Biodiversity and distinct Flora and Fauna UNESCO World Heritage since 1978 General Description
  5. 5. Have been called a unique ‘living museum and showcase of evolution’. Inhibits many unique species, which can only be found there Have an amazing environmental structure and biodiversity What is so special about them ?
  6. 6. The Galapagos islands inspired Darwin to the Discovery of the Concept of Evolution He noticed that the species were similar from island to island but they had small, distinct differences, which helped them being best suited to their environment, and conditions such as food sources, which varied from island to island Darwin‘s Observations
  7. 7. Finches: Depending on temperatures (dry and wet years), which are responsible for more soft or harder nut shells, beak size in Finches differs With their beak size, body size increases, as well as their ability to crack nuts in larger sizes improves Tortoises: Depending on the regular height of the vegetation on the islands, some tortoise populations had shorter and some had longer necks and feet There is great variation in the shape of the shells Darwin‘s Observations
  8. 8. Natural Selection: In a population certain physical traits differ: Some Finches have bigger, some have smaller beaks. The Organisms that have whatever trait is better to survive in the environment that they live in, reproduce more and so that trait is carried on in the population and from generation to generation it becomes very popular Variation: Is the idea, that although there is the same genetic information in a species, some physical traits always differ Evolution
  9. 9. Evolution: By thinking about his observation on the Galapagos islands and his theory of natural selection, Darwin formulated the concept/theory of Evolution: Although we/ any other species might have had one same ancestor from a long time ago, characteristics change over time, succeding from generation to generation- the process of Evolution. Lyell Theory: By geological processes, such as earthquakes and the movement of continental plates the earth changes and evolves over time -> the earth evolves the same way animals do ! Evolution
  10. 10. Although monitored and conserved, for example by the WWF ( the Galapagos island are continously endangered That is not mostly due to Environmental Threats, but Human Impact: Poaching Illegal Fishing Increased Tourism Improper Waste Management Newly intoduced Species Threats
  11. 11. Now you know about the Galapagos Islands! Aren‘t they an amazingly beautiful and unique place? They were even the inspiration for the Discovery of a great biological theory- Evolution! You just have to love them ! And remember: Save Galapagos !!
  12. 12. Bibliography Works Cited Carr, Steve M. "Adaptation in Darwins Finches." Memorial University. N.p., 2004. Web. 11 Mar. 2014. "Darwinism" Darwinism N.p., n.d. Web. 11 Mar. 2014. "Environmental Threats to the Galapagos Islands." PBS: Public Broadcasting Service. GTE Corporation, 2000. Web. 11 Mar. 2014. "Galapagos Islands .com - Galapagos History - Charles Darwin in the Galapagos." Galapagos Islands Tours, Galapagos Cruises, Ecuador and Peru Tours. N.p., n.d. Web. 11 Mar. 2014. "Galápagos Islands." UNESCO World Heritage Centre. N.p., n.d. Web. 11 Mar. 2014. K, T. "Survival Adaptations Galapagos Tortoise, T.K., 2012." Google Sites, 2012. Web. 11 Mar. 2014.