Eriks Janelsins
History 58
2-24-00
Origin of Destruction: A Environmental Micro History of the Galapagos Islands
The islands of the Galapagos are not an undiscovered entity.
Their history is well documented and their beauty something of
legends. Darwin and Melville have both written about the beauty
and splendor of the small chain of islands. The Galapagos Islands
are a group of semi-desert volcanic islands that lie on the equator,
approximately 600 miles west of Ecuador. They consist of thirteen
major islands, six minor islands and 40 some smaller rock formations
and reefs spread out over 17,000 square miles of ocean. The Galapagos
Archipelago attractive to historical ecologists because of their
celebrated biota and because their site is well suited to the
study of climatic change.
Historical ecology suffers from an endless conflict of interests,
between the necessity for using fossil data to reconstruct climate
and the need to know climate in order to understand the community
of fossils. The earliest pollen samples that have been collected
are older carbon dating can tell. From the time the islands first
broke through the ocean floor, some 7-9 million years ago, the
Galapagos have remained a very active site of volcanic activity.
This activity has changed the environment over time. It is believed
that the islands have never been a part of South America. The
flora and fauna of the islands have traveled through the wind,
in the sea, or have been brought my humans. This is the reason
that Darwin found the species on the islands to be slightly different
from those on the mainland.
The first visitors were sailors of the Chimu culture form northern
Peru during the rule of the Inca ruler, Tupac Yapanqui. The official
discovery of the islands wasn't until March 10, 1535 by Fray Tomas
de Berianga who was a Spanish bishop. Pirates used the islands
for much of the next century. Groups of people through out history
have visited the islands bringing with them animals and plants,
some knowingly and others not. These introductions to the ecosystem
have changed the islands forever.
Since islands are isolated, the ecosystem is more unstable than
that of the mainland. In only a decade, the population of goats
on the islands went from 10 to 100,000. The goats have destroyed
the environment of the native tortoises that are now on the verge
of extinction. The recent climatic changes have not been helpful
for an already struggling island group. El Niño has changed
the coral, plants, and animals, possibly forever. Did humans
cause these climatic changes also? Something has to be done to
save one of the richest habitats on earth.
At a time when the archipelago needs help, the country of Ecuador
itself can barely survive. The banks in the country have been
frozen. Inflation, unemployment, and poverty are uncontrollable
so many of the citizens want to move to the islands where life
is better and jobs are available. The islands are already struggling
to support the 20,000 inhabitants. Immigration to island would
be devastating.
Ecotourism seems to many in the country to be the solution to
the economic problems. Tourists are eager to bring money to a
part of the world that really needs it. Ecuador is in the middle
of making regulations to control tourism and immigration to the
Galapagos before humans totally destroy nature's wonderland.
The history of human's effect on the Galapagos is disturbing.
The studies that are being done on the islands will hopefully
help in the preservation of many of the world's other biomes.
Bibliography
Abbott, Alison. "Conservationists seek compromise over new threat to Galapagos," Nature 383(1996): 3.
Beebe, William. Galápagos: World's End (New York: The Knickerbocker Press, 1924).
Bowman, Robert I. The Galápagos (Berkeley: UC Press, 1966).
Cherfas, Jeremy. "Goats must go to save the Galápagos tortoises," New Scientist 146 (1995): 9.
Colinvaux, Paul A., Schofield, Eileen K. "Historical Ecology in the Galapagos Islands: I.A. Holocene Pollen Record from El Junco Lake, Isla San Crístobal," Journal of Ecology 64 (1976): 989-1012.
Darwin, Charles. "The Voyage of the Beagle," International Wildlife 26 (1996): 58.
Mack, Stan. "Galápagos," Natural History 108 (1999)"102-103.
McWilliam, Fiona. "Unnatural Selection. Galapagos Island," The Geographical Magazine 67 (1995): 20-21.
Pain, Stephanie. "Darwin's Paradise Awash. El Niño has brought heavy rains and warm water that may change the Galapagos forever," New Scientist 157(1998): 4.
Stimac, Jim. "The strangest place on earth. An expedition to study the volcanoes of the Galapagos Islands," Earth 7 (1998): 72-76.
Thurston, Harry. "Last Look at Paradise," International
Wildlife 27(1997): 12-21.