Free Essay

The Galapagos Islands

In:

Submitted By korsund
Words 2232
Pages 9
The Galapagos Islands

Axia College of University of Phoenix

May 6th, 2009

For the purpose of this paper I will attempt to provide interesting information on the birds, plants and snails of the Galapagos Islands. I will discuss the biological interrelations between the species to include how they are affected by the human intrusion. I will also share some information on the conservation groups that are trying to preserve these islands for the future.

The Galapagos Islands are located in the eastern Pacific Ocean approximately 600 miles off the west coast of South America. The Galapagos Archipelago consists of 4,897 square miles of land over 28,000 square miles. There are 16 islands that provide tourists and visitors with many spectacular species to look at. These species are comprised of birds, marine life, tortoises, sea lions, iguanas, snails and flora such as cactus and mangroves. (Galapagos Online, 2009)

The Galapagos Islands are home to many species of birds. Some of these birds are the Blue-Footed, Red-Footed, and Masked boobies; Darwin’s Finches which are comprised of 13 different species belonging to 4 genera; the Albatross and the Galapagos Penguins. (Galapagos Online, 2009)

The three varieties of boobies are different in nature. The Blue-Footed Booby’s natural habitat extends from Peru to Mexico. They nest in colonies. They can be seen breeding on most islands north of the equator. (Galapagos Online, 2009)

The Red-Footed Booby is the smallest in size compared to the other types of booby. These birds make their nests in small trees and shrubs. Their colonies can be found on Tower, Culpepper, Wenman, Gardener-near Floreana, Punta and Isla Pitt. They are rarely seen in areas other than where they breed. (Galapagos Online, 2009)

The Masked Booby is the largest in size. They are common in the tropics and subtropics. They have nesting colonies along the cliff or at the sea edge. (Galapagos Online, 2009)

The Albatross calls Hood Island home from late May until early January. They only come to the island to reproduce. The Albatross is the largest bird on the islands. (Galapagos Online, 2009)

There are about 13 different species of finch (Darwin’s Finches) that all evolved from a single species of finch. These other species evolved out of a necessity to adapt to their surroundings. The vegetarian and ground finch have crushing bills, while the tree finch have a grasping bill and the cactus, warbler and woodpecker finch all have probing bills. Their diet varies but consists of seeds, other insects, ticks and eggs. However, the sharp beaked ground finch known as the “Vampire Finch” jumps on the backs of the masked and red-footed boobies and pecks at their flesh and feeds on their blood. (Galapagos Online, 2009)

The Galapagos Penguins were brought to the islands by way of the Humboldt Current, which brings cold waters and nutrients north from Antarctica. They live in colonies and feed on small fish. When they mate, they mate for life. Nesting occurs on Fernandina and Isabella islands between May and January but can occur throughout the year. (Galapagos Online, 2009)

As previously stated the Galapagos Islands are home to many species. One of the smaller species is the tiny endangered bulimulid snails. These snails are ‘endemic’, meaning they are native to the Galapagos Islands. These snails may one day be extinct because of the ever-changing habitat in which they live. Their habitat is being altered by grazing livestock, invasive plants, road and house construction, uncontrolled fires and predators such as black rats and little fire ants. Unfortunately, there are no conservation methods in place to protect this species. (Coppois, 1998, Parent and Smith, 2006)

The Galapagos Islands are covered in many beautiful species of flora. The flora that covers these islands lives in specific zones. The zones are called life zones and are titled as such: coastal, arid lowland, transitional, scalesia, miconia and pampa zones. (Galapagos Online, 2009)

The climate in these life zones varies from the low dry areas on the coast to the high moist areas on the volcano tops. Plants as well as animals have adapted to these various conditions. Some animals even migrate between these zones. (Galapagos Online, 2009)

The Coastal Zone is the lowest zone on the islands. This zone is divided into two parts: 1) the wet coastal zone or Mangrove zone and 2) the dry coastal zone or beaches and high tide areas. (Galapagos Online, 2009)

Mangroves in these wet zones are salt-tolerant trees and shrubs that thrive in shallow, muddy saltwater. There are four varieties of mangroves: black, white, red and button mangroves. (Galapagos Online, 2009)

The Dry Coastal Zone is the dry sandy area that supports low lying spreading plants. These plants have the ability to retain water. One such plant is the sesuvian portula castrum. (Galapagos Online, 2009)

The Arid Lowland Zone is a sloped area from the beach to an elevation of about 197ft. This is an arid desert like climate. Many cacti live in this zone. These cacti include the prickly pear, lave and candelabra cactus. There are even some vine plants that thrive in this zone. At the top of this zone is the silvery leafed palo santo tree that has its collection of lichens. (Galapagos Online, 2009)

The Transitional Zone rises up on the island to more moist areas however both types of plants live in this zone. A variety of small trees and shrubs can be found. The endemic guaybillo tree produces white flowers that develop into a guava life fruit. (Galapagos Online, 2009)

The Scalesia Zone is the lowest of the humid zones and is home to the daisy tree. This tree grows in elevations between 970 ft. and 1970 ft. The trees trunk and branches are covered in moss and lichens. This area is humid and feels like a rain forest. Since humans have arrived on these islands, these trees have reduced in number. This reduction is caused by the pigs and goats that eat the small plants before they can grow and mature in to trees. (Galapagos Online, 2009)

The humid zone at elevations of 1950 ft. to 2300 ft. is called the Miconia Zone. The plant called miconia robinsoniana is endemic to these islands but is becoming endangered because of grazing cattle. (Galapagos Online, 2009)

The last zone is called the Pampa Zone. This zone reaches elevations over 3000 ft. This is the highest vegetation zone and depends on the moisture it receives. There are no trees or shrubs but one will see the tall Galapagos Tree fern and liverworts. (Galapagos Online, 2009)

As previously mentioned, there are four varieties of mangroves on these islands. These mangroves supposedly originated over millions of years ago in the far-east, and over the years the plants and seeds floated across the ocean to the Galapagos Islands. These seeds found their home in the shoreline of these islands. (Galapagos Online, 2009)

Mangroves provide nesting areas for the various types of bird species. They also help to protect the coastline from erosion, storm damage, and wave action. They act as buffers, catching the soil and other materials that run off the land from erosion. (Galapagos Online, 2009)

These mangroves normally thought to be resistant to nature’s natural disasters are now being threatened by the rapidly growing shrimp industry. The dense forests are being destroyed to make room for the shrimp farms. The mangroves of these islands need to be protected because they help protect the coastline of the islands. Not to mention, these mangroves are home to several species of finch. (Galapagos Online, 2009)

Of course, the majority of destruction being caused to these islands is at the hands of the human population. Humans now inhabit these islands. They have brought cattle, pigs and goats to graze. These grazing animals have destroyed nests of the local wildlife causing an imbalance in nature. These cattle, pigs and goats all compete with these endemic species for food. The endemic species are the ones who end up suffering because of the destruction caused by the grazing animals. (Galapagos Online, 2009)

Apparently, the national park service is trying to eradicate the introduced species and restrict the import of new species. Visitors are being asked to not bring anything new to the islands because of the harm that could be caused to the ecosystem by these new species. (Galapagos Online, 2009)

The Galapagos National Park became a park in 1959. About 90% of the islands make up the national park. This park service goes hand- in- hand with the Charles Darwin Research Station. Both are actively involved in the conservation and preservation of these islands. (Galapagos Online, 2009)

Some of the measures the park service has implemented to curb some of the destruction are visiting hours, rules and regulations and entrance fees and permits. There are visiting hours in place for tourism and all itineraries must be approved by the park service for boats visiting the islands. The rules and regulations are for the protection of these islands many precious resources. There are also park entrance fees and permits. These fees range from $3’s for National Tourists or Foreign Residents of Ecuador under 12 years of age to $100’s for Foreign Tourists non-residents of Ecuador over 12 years of age. The Galapagos Marine Reserve Law is to protect the marine life around the islands which extends to about 40 miles (24-64 km) from the base line). The park service even provides tour guides that are considered to be the first line of defense in protecting the park’s natural resources. (Galapagos Online, 2009)

Both the Galapagos Island National Park Service and the Charles Darwin Foundation provide educational information on how to conserve and preserve these islands. In fact the mission of the Charles Darwin Foundation is to provide knowledge and assistance through scientific research and complementary action to ensure the conservation of the environment and biodiversity in the Galapagos Archipelago. (Galapagos Online, 2009, Darwin Foundation, 2006)

This information is vital to preserving the beauty of the Galapagos Islands and its many delicate and unique species and its natural resources. However, tourism and preservation of the islands is kind of a catch 22 in that the tourism business brings money that is the income for the islanders and helps with the conservation efforts. But tourism brings in the introduction of foreign species which leave the native species very vulnerable. I hope that the current preservation measures that are in place will help curb some of the destruction. I hope that a solution to this problem can be found before any more native species become endangered or possibly extinct.

References

- BOAG, PETER THOMAS (1981). MORPHOLOGICAL VARIATION IN THE DARWIN'S FINCHES (GEOSPIZINAE) OF DAPHNE MAJOR ISLAND, GALAPAGOS. Ph.D. dissertation, McGill University (Canada), Canada. Retrieved March 19, 2009, from Dissertations & Theses: Full Text database. (Publication No. AAT NK54745). (1) http://proquest.umi.com/pqdweb?did=749780771&sid=1&Fmt=6&clientId=13118&RQT=309&VName=PQD

- Lee M. Talbot, Andrew S. Goudie “Exotic Species" The Oxford Companion to Global Change. Ed. David Cuff and Andrew Goudie. Oxford University Press, 2009. Oxford Reference Online. Oxford University Press. Apollo Group. 19 March 2009. (2) http://www.oxfordreference.com/views/ENTRY.html?subview=Main&entry=t265.e89

- MacEachern, D. (1997, June). The enchanted Galapagos Islands. Country Living, 20(6), 32. Retrieved March 19, 2009, from Master FILE Premier database. (3) http://search.ebscohost.com/login.aspx?direct=true&db=f5h&AN=9706183219&site=ehost-live

- Richard Gray Science Correspondent. (2009, February 1). Galapagos ... the disappearance of the species. The Sunday Telegraph, 7. Retrieved March 19, 2009, from ProQuest Newsstand database. (Document ID: 1636465001). (4) http://proquest.umi.com/pqdweb?did=1636465001&sid=1&Fmt=3&clientId=13118&RQT=309&VName=PQD

- Hamilton, D. (April 2004). Protecting nature's laboratory: the Galapagos Islands are one of those 'must-see, trip-of-a-lifetime' destinations. Dominic Hamilton travels to the archipelago to find out what effect the increasing numbers of visitors seeking that life-changing experience are having on the islands' delicate ecosystems Geographical, 76, 4. p.96 (3). Retrieved March 19, 2009, from General One File via Gale. (5) http://find.galegroup.com/itx/start.do?prodId=ITOF.

- Moss, Nicholas. "Ecuador battles to preserve spell of the 'enchanted isles': The delicate environment of the Galapagos Islands is coming under increasing threat, particularly from illegal fishing. But protecting the archipelago is no easy task, writes Nicholas Moss." The Financial Times (August 9, 2001): 4. General One File. Gale. Apollo Library. 19 Mar. 2009 http://find.galegroup.com/itx/start.do?prodId=ITOF. (6)

The Charles Darwin Foundation. Copyright © 2006. Retrieved May 4th, 2009. http://www.darwinfoundation.org/en/about-us/mission. (7)

- Parent, C.E. and Smith, R.P. (2006) Galápagos Bulimulids: Status report on a devastated fauna. Tentacle: Newsletter of the IUCN/SSC Mollusc Specialist Group, 14: 25 - 27. Available at: http://www.hawaii.edu/cowielab/Tentacle/Tentacle%2014%20(Cowie%202005).pdf#search=%22Bulimulus%20reibischi%22. Retrieved May 5th, 2009. http://www.arkive.org/galapagos-land-snail/bulimulus-akamatus/info.html. (8)

Galapagos and Ecuador Guide. Albatross Bird of the Galapagos. Author UNK. Retrieved May 4th, 2009. http://www.galapagos-islands-tourguide.com/albatross-bird.html. (9)

Galapagos Islands. Author UNK. © 1999-2009 Galapagos Online Tours all rights reserved. Retrieved May 5th, 2009. http://www.galapagosonline.com/. (10)

Similar Documents

Free Essay

The Galapagos Islands

...The Galápagos Islands: The Galápagos Islands are a small, but unique group of islands in the pacific, approximately 1000km west of South America; the islands were discovered in 1935 by the Spanish. Their volcanic origin should make the islands uninhabitable, but in fact, it’s actually teaming with life on the island. The current between the islands is hot and cold, giving it a good diversity, which means there is a variety in living organisms in that area. Life is everywhere on the islands because the animals have learnt to adapt to the conditions, this means that over time, an animal has change in order to fit in with its environment. A few examples of the animals on the islands are the Galápagos sea lion, the Galápagos land iguana, the marine iguana, the red, red rock crab, the white-tip reef shark, the brown pelican and flamingos. The islands are famous for their large number of endemic species, also because they were studied by Charles Darwin during the voyage of the Beagle. His observations and collections contributed to the inception of Darwin's theory of evolution by natural selection. The group of islands are split into the main islands and the minor islands. There are 18 main islands, these are: Baltra Island, Bartolomé Island, Darwin Island, Espanola Island, Fernandina Island, Floreana Island, Genovesa Island, Isabela Island, Marchena Island, North Seymour Island, Pinzón Island, Pinita Island, Rábida Island, San Cristóbal Island, Santa Cruz Island, Santa Fé Island...

Words: 1520 - Pages: 7

Premium Essay

Galapagos Island Research Paper

...January 10th, 2017. The Galapagos Island is now included in the UNESCO’s list of World Heritage in Danger. It is considered the largest marine reserve in the world and because of that, it has become a target of illegal fishing by the local fishermen. Tourism is also one of the main source of income of the people around the area. There are about 100,000 travelers per year who visit the island. The government is trying hard to manage and still preserve the island even with the presence of the tourists. It has been hard for them for the past years. Even with laws that was passed, people still find loopholes in order for them to stay or move near the Galapagos Island. Some people started moving there so they implement the rules to manage the entry of immigrants in the area. This is to control the population count due to immigration. In the marine preserve, there are only 70 licensed boats that were allowed to take the tourists to the island. As Charles Darwin described the archipelago in the 1835, there are still a lot of beautiful living organisms here. And the animals that were native to the island like the giant tortoises, penguins, sea lions, finches, marine iguanas, and many more can still be found in the island. Some of them, however, are already...

Words: 1517 - Pages: 7

Premium Essay

Galapagos Research Paper

...The Galapagos in September Charles Darwin first visited the Galapagos Islands in September, exploring the islands and discovering creatures that remain today; including giant tortoises and marine iguanas- while marveling at the volcanic landscapes and the diversity found within their borders. True to form, the islands in September are alive with creatures great and small in the midst of transition. Giant tortoises on Santa Cruz make the journey back from the coast to the lush highlands of the island. Fur seals are beginning to breed, and female sea lions are giving birth, with males fiercely protecting their harems from other bulls. It is a cool month to visit the archipelago, in both senses of the word. The chilly Humboldt Current mixes...

Words: 782 - Pages: 4

Free Essay

Culture of Ecuador and the Glapagos Islands

...Culture of Ecuador and the Glapagos Islands Meghan Lazor Ecuador is South America’s second smallest country and is regarded as one of the most geographically and ethnically diverse countries on the continent. The Galapagos Islands are part of Ecuador with a small population of only 10,000 people. Both culture-rich countries are largely uncharted, making them an exciting and adventurous place to visit. Ecuador is located in the northwest corner of South America with the Galapagos Islands to the west. The equator runs across the country which is what gave Ecuador its name. The variation in climate transfers into the lifestyle of its people causing a large range of cultures throughout the country. The diversity in geography for both countries affects how and where the country is inhabited. In Ecuador main cities can sit alone in the center of large rain forests making travel from one city to another often dangerous on roads for hours at a time. Sometimes native tribes may reside in the forests that surrounded the civilized lands. These indigenous people live in wooden shacks with no electric or running water and will occasionally walk the city streets. Ecuador can be split up into four parts, geographically; the Costa (coast), the Sierra (highlands), and El Oriente (the east; which includes the Amazonic region). The Galápagos Islands, or Archipiélago de Colón, also belong to Ecuador.(Encyclopedia, 103) The official language of Ecuador is Spanish, but fortunately in tourists...

Words: 1469 - Pages: 6

Premium Essay

Galapagos Research Paper

...Ten Things to Do with Kids in the Galapagos Taking a trip to the Galapagos with your family is a journey that inspires everyone. Imagine days filled with adventure while exploring the nooks and crannies of uninhabited islands that have captivated explorers for centuries. The Galapagos for kids is a playground that ignites curiosity and leaves little to the imagination. Keep Reading for our top ten things to do with your children. 1. Visit a tortoise reserve In the highlands of Santa Cruz is El Chato tortoise reserve, one of the first stops after our guests arrive in the Galapagos. The reserve is home to Giant tortoises who wander freely throughout the grounds. Parents and children alike are amazed at the gente giants, standing side by side with creatures who show no fear of people. 2. Snorkel...

Words: 743 - Pages: 3

Premium Essay

Hello

...Both pieces of writing from the nineteenth century describe and discuss the Galapagos Island, off the coast of Ecuador. The two pieces of writing have many stylistic and rhetorical differences. Both passages describe Galapagos Islands as a very hot, dry, and barren place. If one did not know the place being described, they could assume that both places were describing hell. The first passage reads and appears to be like a journal entry. It states multiple descriptive facts about the island. The writer has no strong connection to the islands he is simply there to make scientific observations of the landscape and animal life. Some of the words choices to describe the island, such as “leafless”, “rugged”, and “sun-burnt”, can be perceived to have a negative connotation to them. This helps to contribute to the theory that the writer has no personal relation and love for the Galapagos Islands. Where as, the second has more of a poetic style and tone to it. The author of this piece seems to writing a story about the islands, not a journal entry. The writer personifies the Galapagos Islands by phrases and words he uses to describe them. For example, “ice shows beautifully as malachite” and “still the magic of the their changeable tides” are two phrases that normally wouldn’t be used to describe piece of land. I think the author uses personification in order to show the love he has for the island. Even though, these two passages where written about the same topic and written...

Words: 325 - Pages: 2

Free Essay

What Are the Obstacles Facing the Galapagos Conservancy

...RESEARCH QUESTION: WHAT ARE THE OSTACLES FACING THE GALAPAGOS CONSERVANCY? What are the obstacles facing the Galapagos Conservancy? "Ninety-five percent of the reptiles, 50% of the birds, 42% of the land plants, 70% to 80% of the insects and 17% of the fish live nowhere else in the world" according to Michael D. Lemonick and Andrea Dorfman in their article “Can the Galapagos Survive” (Lemonick and Dorfman). The Galapagos Islands in the Pacific Ocean are in danger. Excessive tourism, the growing encroachment of invasive species introduced by immigrants and the overfishing of the surrounding waters are taking a toll on the biodiversity of the islands. These are three major obstacles which face the Galapagos Conservancy in their efforts to preserve the Galapagos Islands. One of the threats to the biodiversity on the Galapagos Islands is the rising number of visitors. Tourism numbers are "growing 8% a year" claims Lemonick and Dorfman (Lemonick and Dorfman). While this tourism brings the anticipated turnover for the government, the quantity of tourists may be damaging the Galapagos Islands. To accomodate the staggering number of tourists more hotels are being built, public transportation is increasing and the waste and pollution levels are growing. According to Michael Buckley in his article, "Islands of Wonder and Shame", "Tourism is a two-edged sword: it brings in much-needed revenue to the tune of $75 million a year, but excessive tourism simply won't work in a natural...

Words: 1346 - Pages: 6

Free Essay

Culture of Ecuador and the Glapagos Islands

...Culture of Ecuador and the Glapagos Islands Meghan Lazor Ecuador is South America’s second smallest country and is regarded as one of the most geographically and ethnically diverse countries on the continent. The Galapagos Islands are part of Ecuador with a small population of only 10,000 people. Both culture-rich countries are largely uncharted, making them an exciting and adventurous place to visit. Ecuador is located in the northwest corner of South America with the Galapagos Islands to the west. The equator runs across the country which is what gave Ecuador its name. The variation in climate transfers into the lifestyle of its people causing a large range of cultures throughout the country. The diversity in geography for both countries affects how and where the country is inhabited. In Ecuador main cities can sit alone in the center of large rain forests making travel from one city to another often dangerous on roads for hours at a time. Sometimes native tribes may reside in the forests that surrounded the civilized lands. These indigenous people live in wooden shacks with no electric or running water and will occasionally walk the city streets. Ecuador can be split up into four parts, geographically; the Costa (coast), the Sierra (highlands), and El Oriente (the east; which includes the Amazonic region). The Galápagos Islands, or Archipiélago de Colón, also belong to Ecuador.(Encyclopedia, 103) The official language of Ecuador is Spanish, but fortunately in tourists...

Words: 1469 - Pages: 6

Free Essay

Galapagos Sealions

...Galapagos Sea Lion The Galapagos sea lion is found on islands in the Galapagos Archipelago and off the coast of Ecuador where a population has been introduced, they have also been found in Costa Rica. The Galapagos sea lion, Zalophus wollebaeki is the scientific name, is fundamentally a coastal animal and is rarely found more than 16 kilometers out in sea. And these sea lions are now on the endangered species list (proquest.com). I think people should be held accountable for hunting and killing an endangered species and we should use any resource possible to save the Galapagos sea lion. The population fluctuates between 20,000 and 40,000 animals. A census in 1978 submitted a population size of about 40,000, but a recent survey in 2001 found a 50% decline from this earlier estimate (Alava and Salazar 2006). The running differences might exist between counts over this period, but this decline suggested is cause for serious concern (proquest.com). The Galapagos sea lion are active during the day and hunt in mostly shallow water, where they feed on fish, octopus, and crustaceans. Sea lions are also capable of making extremely deep dives of up to 200 meters and for 20 minutes or longer, then rapidly surfacing with no ill health effects. When the animals are on shore, the Galapagos sea lions rest on the sands of the beaches and rocky areas in colonies of usually groups of thirty or more (life-sea.blogspot.com). They are extremely social animals and pack together on the shore...

Words: 1218 - Pages: 5

Premium Essay

Essay On The Galapagos Islands

...The Galapagos Islands is a wonderland of unusual and fascinating wildlife, and it seems impossible to choose five. However, since the animals inhabit all the islands, you may need to choose your destination. Five Animals of the Galapagos That You Must See The Galapagos Islands is a treasure trove of endemic species of birds, mammals and amphibians. Renowned for its unique wildlife, it is no wonder Charles Darwin became fascinated. Many of the species that exist today evolved into new species from animals that drifted to the islands millions of years ago. Galapagos Tortoise The Galapagos tortoise is the most famous creature on the islands. It represents the islands all over the world, and when the Spanish arrived it was so ubiquitous, they named the islands Tortoise or in Spanish, Galapagos. It is the largest tortoise species in the world and lives more than 170 years. It had no natural predators for millenniums, so it developed a docile temperament, which made it easy to exploit for the first humans to arrive on the islands. There were around 250,000 roaming the islands as recently at 200 years ago, but today, there...

Words: 917 - Pages: 4

Free Essay

Title

...Exchange Rate * The currency was changed in 2000 in Ecuador to use US dollar. Five Major Tourists Sites * Mitad Del Mundo- 30-meter-tall monument * The Galapagos Islands- Beautiful Beaches * Amazonia- It has Rainforests * Cuenca- Historical area * Cotoeaxi- It is a stratovolcano located near Quito. Sources: http://www.factmonster.com/ipka/A0107479.html http://www.historyofnations.net/southamerica/ecuador.html Ecuador By: Carrie Large Ecuador is divided into three continental regions: the Costa (coast), Sierra (mountains), and Oriente (east). Also the Galapagos Island is considered Ecuador. Each region has different factors that affect its climate. The Costa is influenced by the warm or cool ocean currents. The Sierra changes because the altitude. The Oriente climate slightly changes from the other two regions. Climate in the Galápagos Islands is by the ocean currents and affected by altitude. * When traveling to Ecuador the different regions require different clothing. The Costa and Galapagos Islands requires tropical clothing. * The Sierra requires warm clothing because it is a mountainous area. * The Oriente requires both depending on the weather that day. Geography and Climate The best way to get around * Chifles (Plantain chips) about 1.10 * Arroz con Menestra y Carne (Beef with rice and beans) 4-10 $ * Bollos de Pescado (Fish and peanut wrapped in banana leaves) It ranges * Muchines de Yuca (Stuffed...

Words: 555 - Pages: 3

Free Essay

Environmental Biology

...BIOL-108 Island Biogeography Lab Write-Up Purpose of lab: Calculating how many species were migrating to different islands Hypotheses: The main factors are island size and distance from the island. We hypothesized that islands close to a source area should have a higher number of species than islands further from the source area for islands of equivalent areas. Larger islands should have more species than smaller islands for islands located at similar distances from the source area. Data table—compiled with other groups* Table 1: Island Biogeography Lab Data (fill this in) | Close (2m) | Middle (3m) | Far (4m) | Small (0.25 m2) | 1 | 3 | NA | Medium (.5m2) | 10 | 10 | 6 | Large (1.0 m2) | 15 | 16 | 16 | Graph for ONE simulation—for YOUR GROUPDATA---include title, label axes, write legend (i.e.-medium island at 3M supports 12 species) Legend: The linear trend lines did not intersect. Therefore, data is not available. Questions Based on your data and personal observations, answer the following questions. 1. Does your data support the basic theory of island biogeography? Explain why or why not. * When increasing the island size, the data supports the basic theory of island biogeography. With regards to the distance factor, the data does not support this theory because there is not a steady increase of distance; the distance measurements are very scattered. 2. How does competition affect number of species present on an island? *...

Words: 731 - Pages: 3

Premium Essay

Essay About Galapagos

...For a few small islands that offer some of the best outdoor adventure and wildlife siting in the world, you can also look forward to some fun and entertaining nightlife during your visit. The Best Nightlife on the Galapagos People from all over the world visit the Galapagos Islands to see the amazing and extraordinary wildlife that seems to welcome visitors. Most of the animals go about their business simply ignoring the humans who are so fascinated. In the evening, and when they want a break from all the outdoor adventure, many people look for the places that offer the best nightlife on the Galapagos. Puerto Ayora is the main city for visitors, and it definitely has the best nightlife. Puerto Ayora Puerto Ayora is located on Santa Cruz Island and is the largest town in the Galapagos Islands. It is...

Words: 907 - Pages: 4

Free Essay

Case Study 1 Global Mrkt

...Question 1. What is the explanation for the fact that although the GDP for the Province of Galapagos increased over a six-year period from 1999 to 2005, the per capita GDP for the same period showed a modest increase of less than 2 percent? Essentially, the increase in GDP can be explained by examining the following: tourism, the destruction of the marine ecosystem, and the preservation, or lack thereof, of the Galapagos Islands. The number of tourists increased from 68,850 per year in 2000, to 108,400 in 2004 and this was, in large part, good for the economy. The arrival of each tourist to the island catapulted the economy to new heights. Additionally, the renovation of an old military airstrip on the island of Baltra was a significant contributor to the economic boost of the area. Commercial airlines established regular flights to the islands, and the Ecuadorian government along with the National Parks Service had to, as a means of coping with the influx of tourists, implement strict visitation rules for tourists of the islands. The increase in tourism generated hundreds of tourism-related projects, such as constructing new hotels, and at one point, many immigrants came to Galapagos to seek work in this burgeoning environment. The marine ecosystem was not immune to the effects of tourism either. In fact, bottom fishing and illegal catching caused the depletion of marine reserves. The destruction of fish stocks and China’s increasing thirst for shark fins and sea cucumbers...

Words: 1035 - Pages: 5

Free Essay

Factors Affecting Biodiversity

...forests are the most species-rich biome. It is home to 10% of the world’s known biodiversity. History and age shows that older and least disturbed ecosystems, is where there is generally higher biodiversity, especially in the tropics, where there are few physical constraints on productivity. Older ecosystems have a greater biodiversity as there is a longer time period for new species to evolve. Not only for new species, but also for migratory species such as birds. Disturbed ecosystems, where deforestation and land reclamation occurs, decreases biodiversity by destroying habitats and food chains. Geographical locations, particularly on remote islands, reduces the number of species but encourages endemism as the remaining species develop in a distinct way known as evolution, for example in the Galapagos Islands. The Galapagos Islands are home to some of the highest levels of endemism. Around 97% of reptiles and land mammals are endemic. Favourites include the marine...

Words: 443 - Pages: 2