Galápagos Islands Totally Explained

Everything about Gal Pagos Islands totally explained

The Galápagos Islands (Official name: Archipiélago de Colón; other Spanish names: Islas de Colón or Islas Galápagos, from galápago, "saddle"—after the shells of saddlebacked Galápagos tortoises) are an archipelago of volcanic islands distributed around the equator, 525 nautical miles (972 km/604 mi) west of continental Ecuador in the Pacific Ocean.
The Galápagos archipelago, with a population of around 40,000, is a province of Ecuador, a country in northwestern South America, and the islands are all part of Ecuador's national park system. The principal language on the islands is Spanish.
The islands are famed for their vast number of endemic species and the studies by Charles Darwin during the voyage of the Beagle that contributed to the inception of Darwin's theory of evolution by natural selection.

Etymology

   The archipelago has been known by many different names, including the "Enchanted Islands," because of the way in which the strong and swift currents made navigation difficult. The first crude navigation chart of the islands was done by the buccaneer Ambrose Cowley in 1684. He named the islands after some of his fellow pirates or after the English noblemen who helped the pirates' cause. More recently, the Ecuadorian government gave most of the islands Spanish names. While the Spanish names are official, many users (especially ecological researchers) continue to use the older English names, particularly as those were the names used when Charles Darwin visited.
   The term "Galápagos" refers to the Spanish name given to the Giant Land Tortoises that inhabit the islands, and for which they're particularly known.
   The adjective "Galápagan" may be used to describe things from or related to the islands.

Physical Geography

Located in the eastern Pacific Ocean at 525 nautical miles (972 km/604 miles) off the west coast of South America. The closest land mass is the mainland of Ecuador to the east (the country to which they belong), to the North is Cocos Island 432 miles (720 km) and to the South is Easter Island and San Felix Island at 1920 miles (3200 km).
   The islands are found at the coordinates 1°40'N-1°36'S, 89°16'-92°01'W. Straddling the equator, islands in the chain are located in both the northern and southern hemisphere with Volcan Wolf and Volcano Ecuador on Isla Isabela being directly on the equator line. Española the southernmost island and Darwin the northernmost island are spread out over a distance of 132 miles (220 km).
   The Galapagos Archipelago consists of 4,897 square miles (7880 square km) of land over 28,000 square miles (45,000 square km). The largest of the islands, Isabela Island (Ecuador), measures 1,791 square miles (4,588 square km) and making up half of the total land area of the Galapagos. Volcan Wolf, on Isabela is the highest point with an elevation of 5,600 feet (1,707 m) above sea level.
   The group consists of 16 main islands, 6 smaller islands, and 10 rocks and islets. The islands are located at the Galapagos Triple Junction. It is also atop the Galapagos hotspot, a place where the earth's crust is being melted from below by a mantle plume, creating volcanoes. The oldest island is thought to have formed between 5 and 10 million years ago. The youngest islands, Isabela and Fernandina, are still being formed, with the most recent volcanic eruption in 2007.
   The main islands of the archipelago (with their English names) shown alphabetically. :

Baltra (South Seymour)

Also known as South Seymour, Baltra is a small flat island located near the center of the Galapagos. It was created by Geological uplift. The island is very arid and vegetation consists of salt bushes, prickly pear cactus and palo santo trees.
   During World War II Baltra was established as a US Air Force Base. Crews stationed at Baltra patrolled the Pacific for enemy submarines as well as providing protection for the Panama Canal. After the war the facilities were given to the government of Ecuador. Today the island continues as an official Ecuadorian military base. The foundations and other remains of the US base can still be seen as you cross the island.
   Until 1986, Baltra Airport was the only airport serving the Galápagos. Now there are two airports which receive flights from the continent, the other located on San Cristóbal Island. Private planes flying to Galapagos must fly to Baltra as it's the only airport with facilities for planes overnight.
   Arriving into Baltra all visitors are immediately transported by bus to one of two docks. The first dock is located in a small bay where the boats cruising Galapagos await passengers. The second is a ferry dock which connects Baltra to the island of Santa Cruz.
   During the 1940s scientists decided to move 70 of Baltra's Land Iguanas to the neighboring North Seymour Island as part of an experiment. This move had unexpected results for during the military occupation of Baltra in World War II, the native iguanas became extinct on the island. During the 1980s iguanas from North Seymour were brought to the Charles Darwin Research Station as part of a breeding and repopulation project and in the 1990s land iguanas were reintroduced to Baltra. As of 1997 scientists counted 97 iguanas living on Baltra 13 of which were born on the islands.
   In 2007 and 2008 the Baltra airport is being remodeled to include additional restaurants, shops and an improved visitor area.

Bartolomé (Bartholomew)

Bartolomé Island is a volcanic islet in the Galápagos Islands Group. It is a volcanic islet just off the east coast of Santiago Island. It is one of the "younger" islands in the Galápagos archipelago. It is named after Lieutenant David Bartholomew of the British Navy.

Darwin (Culpepper)

This island is named after Charles Darwin. It has an area of 1.1 square kilometres (0.4 sq mi) and a maximum altitude of 168 metres (551 ft). Here fur seals, frigates, Marine iguanas, Swallow-tailed Gulls, sea lions, whales, marine turtles, Red-footed and Nazca boobies can be seen.

Española (Hood)

Its name was given in honor of Spain. It also is known as Hood after an English nobleman. It has an area of 60 square kilometres (23 sq mi) and a maximum altitude of 206 metres (676 ft).
   Española is the oldest island at around 3.5 million years and the southernmost in the chain. The island's remote location has a large number of endemic fauna. Secluded from the other islands, wildlife on Española adapted to the island's environment and natural resources. marine iguanas on Española are the only ones that change color during breeding season.
   The Waved Albatross is found on the island. The island's steep cliffs serve as the perfect runways for these large birds which take off for their ocean feeding grounds near the mainland of Ecuador and Peru.
   Española has two visitor sites. Gardner Bay is a swimming and snorkeling site as well as offering a great beach. Punta Suarez has migrant, resident, and endemic wildlife including brightly colored Marine Iguana, Española Lava Lizards, Hood Mockingbirds, Swallow-tailed Gulls, Blue Footed Boobies and Nazca Boobies, Galápagos Hawks, a selection of Finch, and the Waved Albatross.

Fernandina (Narborough)

The name was given in honor of King Ferdinand II of Aragon, who sponsored the voyage of Columbus. Fernandina has an area of 642 square kilometres (248 sq mi) and a maximum altitude of 1,494 metres (4,902 ft). This is the youngest and westernmost island. In May 13, 2005, a new very eruptive process began on this island when an ash and water vapour cloud rose to a height of 7 kilometers (4.4 mi) and lava flows descended the slopes of the volcano on the way to the sea. Punta Espinosa is a narrow stretch of land where hundreds of Marine Iguanas gather largely on black lava rocks. The famous Flightless Cormorant inhabits this island and also Galápagos Penguins, Pelicans and Sea Lions are abundant. Different types of lava flows can be compared and the Mangrove Forests can be observed.

Floreana (Charles or Santa María)

It was named after Juan José Flores, the first president of Ecuador, during whose administration the government of Ecuador took possession of the archipelago. It is also called Santa Maria after one of the caravels of Columbus. It has an area of 173 square kilometres (66.8 sq mi) and a maximum altitude of 640 metres (2,100 ft). It is one of the islands with the most interesting human history and one of the earliest to be inhabited. Pink flamingos and green sea turtles nest (December to May) in this island. The "patapegada" or Galápagos petrel is found here, a sea bird which spends most of its life away from land. At Post Office Bay, since the 18^th century whalers kept a wooden barrel that served as post office so that mail could be picked up and delivered to their destination mainly Europe and the United States by ships on their way home. At the “Devil's Crown”, an underwater volcanic cone, coral formations are found.

Genovesa Island (Tower)

The name is derived from Genoa, Italy where it's said Columbus was born. It has an area of 14 square kilometres (5.4 sq mi) and a maximum altitude of 76 metres (249 ft). This island is formed by the remaining edge of a large crater that's submerged. Its nickname of “the bird island” is clearly justified. At Darwin Bay, frigatebirds, swallow-tailed gulls, which are the only nocturnal of its species in the world can be seen. Red-footed boobies, noddy terns, lava gulls, tropic birds, doves, storm petrels and Darwin finches are also in sight. Prince Philip's Steps is a bird-watching plateau with Nazca and red-footed boobies. There is a large Palo Santo forest.

Isabella (Albemarle)

This island was named in honor of Queen Isabela. With an area of 4,640 square kilometres (1,792 sq mi), it's the largest island of the Galápagos. Its highest point is Wolf Volcano with an altitude of 1,707 metres (5,600 ft). The island's seahorse shape is the product of the merging of six large volcanoes into a single landmass. On this island Galápagos Penguins, Flightless Cormorants, Marine Iguanas, pelicans and Sally Lightfoot crabs abound. At the skirts and calderas of the volcanos of Isabela, Land Iguanas and Galápagos Tortoises can be observed, as well as Darwin Finches, Galápagos Hawks, Galápagos Doves and very interesting lowland vegetation. The third-largest human settlement of the archipelago, Puerto Villamil, is located at the south-eastern tip of the island.

Marchena (Bindloe)

Named after Fray Antonio Marchena. Has an area of 130 square kilometres (50 sq mi) and a maximum altitude of 343 metres (1,125 ft). Galápagos hawks and sea lions inhabit this island, and it's home to the Marchena Lava Lizard, an endemic animal.

Nameless

The small islet is used mostly for scuba diving.

North Seymour

Its name was given after an English nobleman called Lord Hugh Seymour. It has an area of 1.9 square kilometres (0.7 sq mi) and a maximum altitude of 28 metres (92 ft). This island is home to a large population of blue-footed boobies and swallow-tailed gulls. It hosts one of the largest populations of frigate birds. It was formed from geological uplift.
Just north of the Baltra Airport is the small islet of North Seymour. North Seymour was created by seismic uplift rather than being of volcanic origin. The island has a flat profile with cliffs only a few feet from the shoreline, where swallowtail gulls and tropicbirds sit perched in ledges. A tiny forest of silver-grey Palo santotrees stand just above the landing, usually without leaves, waiting for rain to bring them into bloom. The island is teeming with life. Visiting the island you may have to give way to a passing sea lion or marine iguana. Flocks of pelicans and swallow tailed gulls feed off shore and seasonally masked boobies can also be seen.
North Seymour is an extraordinary place for breeding birds and is home to one of the largest populations of nesting blue-footed boobies and magnificent frigate birds. Pairs of blue-footed boobies can be seen conducting their mating ritual as they offer each other gifts, whistle and honk, stretch their necks towards the sky, spread their wings, and dance--showing off their bright blue feet. Magnificent frigatebirds perch in low bushes, near the boobies, while watching over their large chicks. The frigates are huge, dark acrobats with a wingspan. Male frigates can puff up their scarlet throat sacks to resemble a giant red balloon. Boobies and frigates have an interesting relationship. Boobies are excellent hunters and fish in flocks. The frigates by comparison are pirates, they dive bomb the boobies to force them to drop their prey. Then the acrobatic frigate swoops down and picks up the food before it hits the water.

Pinzón (Duncan)

Named after the Pinzón brothers, captains of the Pinta and Niña caravels. Has an area of 18 square kilometers (7 sq mi) and a maximum altitude of 458 metres (1,503 ft). Sea lions, Galápagos hawks, giant tortoises, marine iguanas, and dolphins can be seen here. The Pinta island is also home to the last remaining Pinta Tortoise, called Lonesome George. He doesn't actually live on Pinta Island any longer, he's at a research facility.

Rábida (Jervis)

It bears the name of the convent of Rábida where Columbus left his son during his voyage to the Americas. Has an area of 4.9 square kilometres (1.9 sq mi) and a maximum altitude of 367 metres (1,204 ft). The high amount of iron contained in the lava at Rábida give it a distinctive red color. White-Cheeked Pintail Ducks live in a salt-water lagoon close to the beach, where brown pelicans and boobies have built their nests. Up until recently, flamingos were also found in the salt-water lagoon, but they've since moved on to other islands, likely due to a lack of food on Rábida. Nine species of Finches have been reported in this island.

San Cristóbal (Chatham)

It bears the name of the Patron Saint of seafarers, "St. Christopher". Its English name was given after William Pitt, 1st Earl of Chatham. It has an area of 558 square kilometres (215 sq mi) and its highest point rises to 730 metres (2395 ft). This islands hosts frigate birds, sea lions, giant tortoises, blue and red footed boobies, tropicbirds, marine iguanas, dolphins, swallow-tailed gulls. Its vegetation includes Calandrinia galapagos, Lecocarpus darwinii, and trees such as Lignum vitae.The largest fresh water lake in the archipelago, Laguna El Junco, is located in the highlands of San Cristóbal. The capital of the province of Galápagos, Puerto Baquerizo Moreno, lies at the southern tip of the island.

Santa Cruz (Indefatigable)

Given the name of the Holy Cross in Spanish, its English name derives from the British vessel HMS Indefatigable. It has an area of 986 square kilometres (381 sq mi) and a maximum altitude of 864 metres (2834 ft). Santa Cruz is the island that hosts the largest human population in the archipelago at the town of Puerto Ayora. The Charles Darwin Research Station and the headquarters of the Galápagos National Park Service are located here. The GNPS and CDRS operate a tortoise breeding center here, where young tortoises are hatched, reared, and prepared to be reintroduced to their natural habitat. The Highlands of Santa Cruz offer an exuberant vegetation and are famous for the lava tunnels. Large tortoise populations are found here. Black Turtle Cove is a site surrounded by mangrove which sea turtles, rays and small sharks sometimes use as a mating area. Cerro Dragón, known for its flamingo lagoon, is also located here, and along the trail one may see land iguanas foraging

Santa Fe (Barrington)

Named after a city in Spain, has an area of 24 square kilometres (9 sq mi) and a maximum altitude of 259 metres (850 ft). Santa Fe hosts a forest of Opuntia cactus, which are the largest of the archipelago, and Palo Santo. Weathered cliffs provide a haven for swallow-tailed gulls, red-billed tropic birds, shear-waters petrels. Santa Fe species of Galapagos Land Iguanas are often seen, as well as lava lizards.

Santiago (San Salvador, James)

Its name is equivalent to Saint James in English; it's also known as San Salvador, after the first island discovered by Columbus in the Caribbean Sea. This island has an area of 585 square kilometers (226 sq mi) and a maximum altitude of 907 metres (2976 ft). Marine iguanas, sea lions, fur seals, land and sea turtles, flamingos, dolphins and sharks are found here. Pigs and goats, which were introduced by humans to the islands and have caused great harm to the endemic species, have been eradicated (pigs in 2002; goat eradication is nearing finalization). Darwin Finches and Galápagos Hawks are usually seen as well as a colony of Fur Seals. At Sullivan Bay a recent (around 100 years ago) pahoehoe lava flow can be observed.

South Plaza

It is named in honor of a former president of Ecuador, General Leonidas Plaza. It has an area of 0.13 square kilometers (0.05 sq mi) and a maximum altitude of 23 metres (75 ft). The flora of South Plaza includes Opuntia cactua and Sesuvium plants, which forms a reddish carpet on top of the lava formations. Iguanas (land and marine and some hybrids of both species) are abundant and there are a large number of birds that can be observed from the cliffs at the southern part of the island, including tropic birds and swallow-tailed gulls.

Wolf (Wenman)

This island was named after the German geologist Theodor Wolf. It has an area of 1.3 square kilometres (0.5 sq mi)and a maximum altitude of 253 metres (830 ft). Here fur seals, frigatebirds, masked and red-footed boobies, Marine Iguanas, sharks, whales, dolphins and swallow-tailed gulls can be seen. The most famous resident is the vampire finch which feeds on the blood of the boobies and is only found on this island.

Minor islands

Peter and Rosemary Grant.

Weather

Although located on the Equator, the Humboldt Current brings cold water to the islands, causing frequent drizzles during most of the year. The weather is periodically influenced by the El Niño phenomenon which brings warmer temperatures and heavy rains.
   During the season known as the "Garua" (June to November) the temperature by the sea is 22°C, a steady and cold wind blows from South and Southeast, and frequent drizzles (Garuas) last most of the day, along with dense fog which conceals the islands. During the warm season (December to May) the average sea and air temperature rises to 25°C, there's no wind at all, there are sporadic though strong rains and the sun shines.
   Weather changes as altitude increases in the large islands. Temperature decreases gradually with altitude, while precipitation increases due to the condensation of moisture in clouds on the slopes. There is a large variation in precipitation from one place to another, not only with altitude but also depending on the location of the islands, and also with the seasons.
   The following table corresponding to the wet 1969 shows the variation of precipitation in different places of Santa Cruz Island:

Location	Charles Darwin Station	Devine Farm	Media Luna
Altitude	6 m	320 m	620 m
January	23.0 mm	78.0 mm	172.6 mm
February	16.8 mm	155.2 mm	117.0 mm
March	249.0 mm	920.8 mm	666.7 mm
April	68.5 mm	79.5 mm	166.4 mm
May	31.4 mm	214.6 mm	309.8 mm
June	16.8 mm	147.3 mm	271.8 mm
July	12.0 mm	42.2 mm	135.6 mm
August	3.8 mm	13.7 mm	89.5 mm
September	18.5 mm	90.9 mm	282.6 mm
October	3.2 mm	22.6 mm	96.5 mm
November	11.0 mm	52.8 mm	172.7 mm
December	15.7 mm	84.1 mm	175.3 mm

TOTALS	469.7 mm	1901.7 mm	2656.4 mm

The precipitation also depends on the geographical location. During March 1969 the precipitation over Charles Darwin Station, on the southern coast of Santa Cruz was 249.0 mm, while on Baltra Island the precipitation during the same month was only 137.6 mm. This is due to the fact that Baltra is located behind Santa Cruz with respect to the prevailing southerly winds, so most of the moisture gets precipitated in the Santa Cruz highlands.
There are significant changes in precipitation from one year to another too. At Charles Darwin Station the precipitation during March 1969 was 249.0 mm, but during March 1970 it was only 1.2 mm.

History

European discovery of the Galápagos Islands occurred when Dominican Fray Tomás de Berlanga, the fourth Bishop of Panama, sailed to Peru to settle a dispute between Francisco Pizarro and his lieutenants. De Berlanga's vessel drifted off course when the winds diminished, and his party reached the islands on March 10, 1535. According to a 1956 study by Thor Heyerdahl and Arne Skjølsvold, remains of potsherds and other artifacts from several sites on the islands suggest visitation by South American peoples prior to the arrival of the Spanish.
   The islands first appeared on maps in about 1570 in those drawn by Abraham Ortelius and Mercator. The islands were called "Insulae de los Galopegos" (Islands of the Tortoises).
   The first English captain to visit the Galápagos Islands was Richard Hawkins, in 1593. Until the early 19th century, the archipelago was often used as a hideout by mostly English pirates who pilfered Spanish galleons carrying gold and silver from South America to Spain. Alexander Selkirk, whose adventures in Juan Fernández Islands inspired Daniel Defoe to write Robinson Crusoe, visited the Galápagos in 1708 after he was picked up from Juan Fernández by the privateer Woodes Rogers. Rogers was refitting his ships in the islands after sacking Guayaquil.
   The first scientific mission to the Galápagos arrived in 1790 under the leadership of Alessandro Malaspina, a Sicilian captain whose expedition was sponsored by the King of Spain. However, the records of the expedition were lost.
   In 1793, James Colnett made a description of the flora and fauna of Galápagos and suggested that the islands could be used as base for the whalers operating in the Pacific Ocean. He also drew the first accurate navigation charts of the islands. Whalers killed and captured thousands of the Galápagos tortoises to extract their fat. The tortoises could also be kept on board ship as a means of providing of fresh protein as these animals could survive for several months on board without any food or water. The hunting of the tortoises was responsible for greatly diminishing, and in some cases eliminating, certain species. Along with whalers came the fur-seal hunters who brought the population of this animal close to extinction. Ecuador annexed the Galápagos Islands on February 12, 1832, naming it Archipelago of Ecuador. This was a new name that added to several names that had been, and are still, used to refer to the archipelago. The first governor of Galápagos, General José de Villamil, brought a group of convicts to populate the island of Floreana and in October 1832 some artisans and farmers joined. The voyage of the Beagle brought the survey ship HMS Beagle under captain Robert FitzRoy to the Galápagos on September 15, 1835 to survey approaches to harbors. The captain and others on board including his companion the young naturalist Charles Darwin made a scientific study of geology and biology on four of the thirteen islands before they left on October 20 to continue on their round-the-world expedition. Darwin noticed that mockingbirds differed between islands, though he thought the birds now known as Darwin's finches were unrelated to each other and didn't bother labelling them by island. The governor of the prison colony on Charles Island told him that tortoises differed from island to island. Towards the end of the voyage Darwin speculated that the distribution of the mockingbirds and the tortoises might "undermine the stability of Species". When specimens of birds were analysed on his return to England it was found that many apparently different kinds of birds were species of finches which were also unique to islands. These facts were crucial in Darwin's development of his theory of natural selection explaining evolution, which was presented in The Origin of Species.
   On January 28, 2008, Galapagos National Park official Victor Carrion announced the killing of 53 sea lions (13 pups, 25 youngsters, 9 males and 6 females) at Pinta, Galapagos Islands nature reserve with their heads caved in. In 2001 poachers killed 35 male sea lions.

Gallery

Image:School of Hammerhead sharks.jpg|School of Hammerhead Sharks, Wolf Island. Image:5923_aquaimages.jpg|Goatfish and a Burrito Grunt. Image:6070_aquaimages.jpg|Diver, Hogfish and Parrotfish, Darwin Island. Image:Long-nose_Hawkfish.jpg|Long-nose Hawkfish. Image:Coral_Hawkfish.jpg|Coral Hawkfish. Image:6262_aquaimages.jpg|Large-Banded Blenny. Image:6327_aquaimages.jpg|Diver and Southern Stingray. Image:6277_aquaimages.jpg|Galapagos Penguins. Image:6285_aquaimages.jpg|Galapagos Penguins. Image:6350_aquaimages.jpg|Plaza Island and cactus. Image:5975_aquaimages.jpg|Marine Iguanas. These iguanas eat algae growing on rocks in the ocean. Image:6010_aquaimages.jpg|Marine Iguanas. Image:6039_aquaimages.jpg|Land Iguana. These iguanas eat cactus. Image:6338_aquaimages.jpg|Sea Lion mother and pup, Plaza Island. Image:6004_aquaimages.jpg|Sea Lion on the beach. Image:6309_aquaimages.jpg|Juvenile Sea Lions, Plaza Island. Image:6321_aquaimages.jpg|Juvenile Sea Lion, Plaza Island. Image:Male_Frigate_bird.jpg|Male Frigate bird. Image:6418_aquaimages.jpg|Galapagos Tortoise. Image:6429_aquaimages.jpg|Galapagos Tortoise closeup. Image:IMG_2279.JPG|Playful Sea lions Image:Galapagos_iguana1.jpg|Galapagos Iguana

In fiction

In the movie (2003), one of the main locations is the Galápagos Islands, where naturalist Stephen Maturin discovers new animal species.

Kurt Vonnegut's Galápagos is an exploration of evolution and the absurdity of the human species, set in Guayaquil and the islands.

In the cartoon The Mysterious Cities of Gold, the characters first land on the Galápagos Islands before reaching the Americas' mainland.

Herman Melville's The Encantadas, or Enchanted Isles is a collection of ten short stories based on his own experiences on the South Seas. Melville knew the Islands firsthand, though he also relied on the stories of other sailors who had visited the Galápagos, as well as authorities such as David Porter's Journal of a Cruise Made to the Pacific Ocean (1822).

In the Australian television series SeaChange, Diver Dan leaves Pearl Bay for the Galápagos Islands.

In the animated series Futurama, President Richard Nixon orders all robots to the Galapagos Islands in order to destroy all the robots on Earth, who had been producing hazardous greenhouse gases.

In the animated series Rocko's Modern Life, Filbert fulfills an obligation to return to the Galapagos Islands, where he was born.Further Information

Get more info on 'Gal Pagos Islands'.

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