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- Science; Rainforests and Earth
-
- The Tropical Rainforests of the World
-
- In this term paper, I will explain the great importance of the tropical
- Rainforests around the world and discuss the effects of the tragedy of
- rainforest destruction and the effect that it is having on the earth. I will
- talk about the efforts being made to help curb the rate of rainforest
- destruction and the peoples of the rainforest, and I will explore a new topic
- in the fight to save the rainforest, habitat fragmentation. Another topic being
- discussed is the many different types of rainforest species and their
- uniqueness from the rest of the world.
-
- First, I will discuss the many species of rare and exotic animals, Native to
- the Rainforest. Tropical Rainforests are home to many of the strangest looking
- and most beautiful, largest and smallest, most dangerous and least frightening,
- loudest and quietest animals on earth. There are many types of animals that
- make their homes in the rainforest some of them include: jaguars, toucans,
- parrots, gorillas, and tarantulas. There are so many fascinating animals in
- tropical rainforest that millions have not even identified yet. In fact, about
- half of the worldÆs species have not even been identified yet. But sadly, an
- average of 35 species of rainforest animals are becoming extinct every day.
-
- So many species of animals live in the rainforest than any other parts of the
- world because rainforests are believed to be the oldest ecosystem on earth.
- Some forests in southeast Asia have been around for at least 100 million years,
- ever since the dinosaurs have roamed the earth. During the ice ages, the last
- of which occurred about 10,000 years ago, the frozen areas of the North and
- South Poles spread over much of the earth, causing huge numbers of extinctions.
- But the giant freeze did not reach many tropical rainforests. Therefore, these
- plants and animals could continue to evolve, developing into the most diverse
- and complex ecosystems on earth.
-
- The nearly perfect conditions for life also help contribute to the great number
- of species. With temperatures constant at about 75-80 degrees Fahrenheit the
- whole year, the animals donÆt have to worry about freezing during the cold
- winters or finding hot shade in the summers. They rarely have to search for
- water, as rain falls almost every day in tropical rainforests.
-
- Some rainforest species have populations that number in the millions. Other
- species consist of only a few dozen individuals. Living in limited areas, most
- of these species are found nowhere else on earth. For example, the maues
- marmoset, a species of monkey, wasnÆt discovered until recently. ItÆs entire
- tiny population lives within a few square miles in the Amazon rainforest. This
- species of monkey is so small that it could fit into a persons hand!
-
- In a rainforest, it is difficult to see many things other than the millions of
- insects creeping and crawling around in every layer of the forest. Scientists
- estimate that there are more than 50 million different species of invertebrates
- living in rainforests. A biologist researching the rainforest found 50
- different of ants on a single tree in Peru! A few hours of poking around in a
- rainforest would produce several insects unknown to science.
-
- The constant search for food , water, sunlight and space is a 24-hour pushing
- and shoving match. With this fierce competition, it is amazing that that so
- many species of animals can all live together. But this is actually the cause
- of the huge number of the different species.
-
- The main secret lies in the ability of many animals to adapt to eating a
- specific plant or animal, which few other species are able to eat. An example
- of such adaptations would be the big beaks of the toucans and parrots. Their
- beaks give them a great advantage over other birds with smaller beaks. The
- fruits and nuts from many trees have evolved with a tough shell to protect them
- from predators. In turn toucans and parrots developed large, strong beaks,
- which serves as a nutcracker and provides them with many tasty meals.
-
- Many animal species have developed relationships with each other that benefit
- both species. Birds and mammal species love to eat the tasty fruits provided
- by trees. Even fish living in the Amazon River rely on the fruits dropped from
- forest trees. In turn, the fruit trees depend upon these animals to eat their
- fruit, which helps them to spread their seeds to far - off parts of the forest.
-
- In some cases both species are so dependent upon each other that if one becomes
- extinct, the other will as well. This nearly happened with trees that relied
- on the now extinct dodo birds. They once roamed Mauritius, a tropical island
- located in the Indian Ocean. They became extinct during the late 19th century
- when humans overhunted them. The calvaria tree stopped sprouting seeds soon
- after. Scientists finally concluded that, for the seeds of the calvaria tree
- to sprout, they needed to be digested by the dodo bird. By force feeding the
- seeds to a domestic turkey, who digested the seeds the same way as the dodo
- bird, the trees were saved. Unfortunately, humans will not be able to save
- each species in this same way.
-
- Each species has evolved with its own set of unique adaptations, ways of
- helping them to survive. Every animal has the ability to protect itself from
- being someoneÆs next meal. To prevent the extinction of a species each and
- every species must develop a defense tactic. The following are just a few of
- Mother NatureÆs tricks.
-
- ╖ CAMOFLAGE
- The coloring of some animals acts as protection from their predators. Insects
- play some of the best hide-and-go-seek in the forest. The ôwalking stickö is
- one such insect; it blends in so well with the palm tree it calls its home that
- no one would notice unless itÆs moved. Some butterflies, when they close their
- wings, look exactly like leaves. Camouflage also works in reverse, helping
- predators, such as boa constrictors, sneak up on unsuspecting animals and
- surprise them.
-
-
- ╖ SLOW AS A SNAIL
- The tree-toed sloth is born with brown fur, but you would never know this by
- looking at it. The green algae that makes its home in the sloths fur helps it
- to blend in with the tops of the trees, the canopy, where it makes itÆs home.
- But even green algae isn't the only thing living in a slothÆs fur; it is
- literally ôbuggedö with a variety of insects. 978 beetles were once found
- living on one sloth.
-
- The sloth has other clever adaptations. Famous for its snail-like pace; it is
- one of the slowest moving animals on earth. It is so slow that it often takes
- up to a month to digest itÆs food. Although its tasty meat would make a good
- meal for jaguars and other predators, most do not notice the sloth as it hangs
- in the trees, high up in the canopy.
-
- ╖ DEADLY CREATURES
- Other animals donÆt want to announce their presence to the whole forest. Armed
- with dangerous poisons used in life threatening situations, their bright colors
- warn predators to stay away. This enables them to survive everyday emergency
- situations.
-
- The coral snake of the Amazon, with its brilliant red, yellow, and black
- coloring, is recognized as one of the most beautiful snakes in the world, but
- it is just as deadly as it is beautiful. The coral snakeÆs deadly poison can
- kill in seconds. Other animals know to stay away from it.
-
- The poison arrow frog also stands out with its brightly colored skin. It's
- skin produces some of the strongest natural poison in the world, which
- indigenous people often use for hunting purposes. It's poison is now being
- tested for use in modern medicine.
-
- In a single raiforest habitat, several species of squirels can live together
- without harming one another. This bewilders many people, Louise Emmons found.
- Why can nine species of squirrels live together? Well, in a brief summary each
- of the nine species is a different size; three have specialized diets or
- habitats, which leaves six species that feed on nuts, fruits and insects, and
- so potentially compete for food. A closer look showed that three of the six, a
- large, a medium, and a small one live in the forest canopy and never come to
- the ground. The largest squirrel feeds mainly on very large, hard nuts, and
- the smaller ones eat smaller fruits and nuts. The other three species, again a
- large medium and small one live in the ground and eat fruits and nuts of the
- same species as their canopy neighbors, but only after they fall to the ground.
-
- Tropical rainforests are bursting with life. Not only do millions of species
- of plants and animals live in rainforests, but many people also call the
- rainforest their home. In fact, Indigenous, or native, people have lived in
- rainforests for thousands of years. In North and South America they were
- mistakenly named Indians by Christopher Columbus, who thought that he had
- landed in Indonesia, then called the East Indies.
-
- The native people of the rainforest live very different lives than us. In this
- section, I will explain how very different our lives differ than from the
- indigenous people of the rainforest. Although many indigenous people live very
- much like we do, some still live as their ancestors did many years before them.
- These groups organize their daily lives differently than our culture.
- Everything they need to survive, from food to medicines to clothing, comes from
- the forest.
-
- ╖ FOOD
- Besides haunting, gathering wild fruits and nuts and fishing, Indigenous people
- also plant small gardens for other sources of food, using a sustainable farming
- method called shifting cultivating. First they clear a small area of land and
- burn it. Then they plant many types of plants, to be used for food and
- medicines. After a few years, the soil has become too poor to allow for more
- crops to grow and weeds to start to take over. So they then move to a nearby
- uncleared area. This land is traditionally allowed to regrow 10-50 years
- before it is farmed again.
-
- Shifting cultivation is still practiced by those tribes who have access to a
- large amount of land. However, with the growing number of non-Indigenous
- farmers and the shrinking rainforest, other tribes, especially in Indonesia and
- Africa, are now forced to remain in one area. The land becomes a wasteland
- after a few years of overuse, and cannot be used for future agriculture.
-
- ╖ EDUCATION
- Most tribal children donÆt go to schools like ours. Instead, they learn about
- the forest around them from their parents and other people in the tribe. They
- are taught how to survive in the forest. They learn how to hunt and fish, and
- which plants are useful as medicines or food. Some of these children know more
- about rainforests than scientists who have studied rainforests for many years.
-
- The group of societies known as Europeans includes such cultures such as
- Spanish and German. Similarly, the broad group, Indigenous peoples includes
- many distinct culture groups, each with its own traditions. For instance,
- plantains (a type of banana) are a major food source for the Yanonami from the
- Amazon while the Penan of Borneo, Southeast Asia, depend on the sago palm (a
- type of palm tree) for food and other uses.
-
- All Indigenous people share their strong ties to the land. Because the
- rainforest is so important for their culture, they want to take care of it.
- They want to live what is called a sustainable existence, meaning they use the
- land without doing harm to the plants and animals that also call the rainforest
- their home. As a wise Indigenous man once said, ôThe earth is our historian,
- our educator, the provider of food, medicine, clothing and protection. She is
- the mother of our races.ö(11)
-
- Indigenous peoples have been losing their lives and the land they live on ever
- since Europeans began colonizing 500 years ago. Most of them died from common
- European diseases which made Indigenous people very sick because they had never
- had these diseases before. A disease such as the flu could possibly kill an
- indigenous person because he/she has not been exposed to this disease before.
- Many Indigenous groups have also been killed by settlers wanting their land, or
- put to work as slaves to harvest the resources of the forest. Others were
- converts to Christianity by missionaries, who forced them to live like
- Europeans and give up their cultural traditions.
-
- Until about forty years ago, the lack of roads prevented most outsiders from
- exploiting the rainforest. These roads, constructed for timber and oil
- companies, cattle ranchers and miners, have destroyed millions of acres each
- year.
-
- All of the practices force Indigenous people off their land. Because they do
- not officially own it, governments and other outsiders do not recognize their
- rights to the land. They have no other choice but to move to different areas,
- sometimes even to the crowded cities. They often live in poverty because they
- have no skills useful for a city lifestyle and little knowledge about the
- culture. For example, they know more about gathering food from the forest than
- buying food from a store. ItÆs like being forced to move to a different
- country, where you knew nothing about the culture or language.
-
- Indigenous groups are beginning to fight for their land, most often through
- peaceful demonstrations. Such actions may cause them to be arrested or even to
- lose their lives, but they know that if they take no action, their land and
- culture could be lost forever. Kaypo Indians, for example, recently spoke to
- the United States Congress to protest the building of dams in the Amazon, and
- were arrested when they arrived back in Brazil, accused of being traitors to
- their own country. In Malaysia, the Penean have arrested for blocking logging
- roads.
-
- Many people living outside of rainforests went to help protect the Indigenous
- peopleÆs culture. They understand that Indigenous people have much to teach us
- about rainforests. Since we (the US and other countries) have been working
- with the Indigenous People and other rainforest protection agencies, we have
- learned many things about the forest, including itÆs ecology, medicinal plants,
- food and other products. It has also showed us how crucial it is for the
- Indigenous people of the rainforest to continue their daily and traditional
- activities because of their importance in the cycle if the rainforest. It has
- shown us that they have the right to practice their own lifestyle, and live
- upon the land where there ancestors have lived before them. (2)
-
- One such example of a invasion of the Ingenious peopleÆs privacy is a new so
- called ôemergencyö called the Cofan Emergency. This dispute is about an
- Indigenous tribe called the Cofan. Historically, the Cofan occupied some half
- a million acres of rainforest along the Aguarico River in the Ecuadorian
- Amazon. Because their traditional territory has been significantly reduced
- through invasions by oil companies such as Texaco, the Cofan now live in five
- small, discontinuous communities. However, they still utilize and protect a
- region of about 250,000 acres, including two reserves in the Amazon.
-
- In addition to displacing the Cofan and other indigenous groups, oil
- development, which began in this region over thirty years ago, has also caused
- serious environmental destruction. The deforestation of some two million acres
- of rainforest and contamination of the regions waterways has resulted in the
- loss of plant and animal diversity, and drastically affected the social and
- economic well-being of local Indigenous peoples. This devastation continues.
- Last year, ten new concessions were licensed to international oil companies in
- the Ecuadorian Amazon, opening an additional five million acres of forest to
- oil development. One of these oil blocks, Block 11 awarded to the US-based
- Santa Fe Energy, lies within Cofan territory and will directly affect at least
- three communities.
-
- In order to protect the remaining intact rainforest areas of their homeland and
- the adjacent ecological reserves, the Cofan are seeking $5,000 to purchase an
- outboard motor and a video camera, in order to coordinate between disperse
- communities and document the destruction caused by oil development. Cofan
- leaders plan to work with their communities and document the destruction caused
- by oil development. Also they planned to work with their communities to
- organize against further environmental destruction by the oil companies. This
- grant will also cover for legal costs to demarcate the Cofan community lands.
-
-
- In the next section of this term paper, I will be discussing a subject relating
- to the rainforest called habitat fragmentation.
-
- Fragmentation of a habitat, by its very nature, reduces the total amount of
- area of the original habitat type. Two researchers, Ann Keller and John
- Anderson suggest that the absolute habitat loss of pristine habitat and the
- reduced density of resources associated with fragmentation potentially impacts
- the biota (the plant and animal life of a region) more than any single factor.
- Habitat fragmentation affects the flora and fauna (plants and animals) of a
- given ecosystem by replacing a naturally occurring ecosystem with a
- human-dominated landscape which may be inhospitable to a certain number of the
- original species. However, in direct contrast to the ocean as a geographic
- barrier, the human landscape matrix is typically accessible to plants and
- animals, in that they are able to easily disperse across it, if not reside in
- it.
-
- On the other hand, the human landscape may directly contribute to the
- extinction of species by slanting the ecosystem balance of species which are
- highly adaptable to changing conditions. For example, the increased amount of
- human-dominated landscape allows certain species to grow phenomenally, which
- can result in harm to species which rely exclusively on very scarce areas . A
- commonly referred to example of this is a bird called the brown-headed
- cowbird. This bird is best characterized as a ônest parasiteö because it
- because it replaces the eggs of another species with eggs of their own ,
- allowing the other species to incubate and raise their young. Their increased
- numbers have had negative effects on the reproductive successfulness of many
- forest-dwelling birds.
-
- In addition to titling the ecosystem balance in favor of species which are
- highly adaptable, the loss of habitat associated with habitat fragmentation may
- simply cause the other, less adaptable species rates to decline. A man named
- James Saunders documents one remarkable example of how changing large expansive
- areas of the birds of the wheatbelt of western Australlia as a result of
- fragmentation. He showed that 41% of the birds native to the region have
- decreased in range or abundance since the 1900Æs and indicated that almost all
- of these changes resulted directly from habitat fragmentation and the decline
- in abundance of native vegetation. Although some species have increased in
- abundance, he noted that many more species have been adversely affected than
- have benefited.
-
- Importantly, the species that typically increase in abundance or range when
- habit fragmentation occurs are those which are adapted for being adaptable. In
- other words, their resource needs can be met by a variety of conditions, and
- thus often by human activities by reducing their competition with other
- species. Because of this, these species which benefit by human activities are
- not the ones we need to manage for and protect. Instead, we need to protect
- those species which are adapted solely for survival in the rapidly disappearing
- unfragmented habitat.
-
- Besides physically changing a part of the original habitat, decreasing the size
- of the original habitat can reduce the biological diversity of an area in
- several ways. Reducing biodiversity of an area may occur if habitat fragments
- are smaller than the home range of the animal with the largest home range that
- existed within the intact ecosystem. Many birds have large home ranges because
- they require patchily distributed resources. For example, one breeding pair
- of ivory billed woodpeckers require five to six square miles of undisturbed
- contiguous bottomland forest, and a single European goshawk requires twenty to
- forty-five miles for his home range.
-
- If a habitat fragment exists that is smaller than the minimum area required by
- a given species, individuals of that species will not likely be found within
- that habitat fragment. For example, the Louisiana waterthrush is rarely found
- in small woodlots because they require open water within their home range, and
- most small woodlots do not have year-round streams or ponds. If a species
- requires two or more habitat types, they are often susceptible to local
- extinction due to habitat fragmentation, because often they are unable to
- freely move between the different habitat types. The blue-grey gnathatcher
- moves from decidous woodland to chapparral (a warm area) during the breeding
- season, and if one of the two habitat types can not be readily accesed, they
- are very susceptable to local extinction.
-
- Loss of any species from a community may have secondary effects that revrberate
- throughout the ecosystem. For example, loss of a top predator from an area
- because the fragment is too small can cause numbers of small omnivores to
- increase, which in turn may cause excessive predation pressureon songbird eggs
- and hatchlings, ultimately resulting in reproductive sucess.
-
- Tropical communities are oftem more susceptable to loss of biological diversity
- than temperate communuities, because tropical species typically are found in
- lower densities, are less widely distributed, and often have weaker dispersal
- capabilities. Many tropical species have evolved in that they have changed
- their roles that they play in the rainforest. An example of this occurance is
- the cassowary, an Austrailan rainforest frugivore, (or an animal that primarily
- feeds on fruit) is extremely susceptable to local extinction by habitat
- fragmentation because its habitat requirement of large coniguous rainforest
- areas is compounded by its unique plant-seed despersal evolvment. This large,
- flightless bird wanders nomadically in search of very large seeds, many of
- which need to be digested before they will germanate. YouÆlll rember that
- earlier another example of this situation in which the dodo bird became
- extinct. The dodo bird digested seeds of the calvaria tree. But when the dodo
- bird became extinct due to overhunting by humans, the calvaria tree, which made
- the seeds to be digested by the dodo bird to sprout itÆs plants started not to
- sprout seeds. In the Rainforests, their are many such instances like this.
- But unfortunately, many of them go unnoticed and thus, each day many of the
- rainforest plants and animals go extinct.
-
- Besides being home to extinction-prone species, tropical communities are prone
- to destruction and fragmentation because of their physical location,
- overlapping with the geographical birders of the third world nations. In
- these nations, citizens often rely on the revenues raised from rainforest
- timber or cattle raised on cleared land for survival. This constant pressure
- on rainforest communities leads to excessive habitat fragmentation. Small
- isolated fragments result, leading to an altered ecosystem balance. On the
- tropical island of Java, where almost all of the original habitat remaining
- exists in reserves, a group of ecologists have assessed the status of all of
- the birds of prey found in the rainforest habitat. Nearly all the raptors were
- extremely rare outside the reserves, as expected. They also found that the
- larger the reserve was, the denser the birds populations were within the
- reserve.
-
- Interestingly, a scientist named Lovejoy (I couldnÆt find his first name) in
- 1986 found a similar phenomena with Amazonian birds in the Biological Dynamics
- of forest project (BDFF) in Brazil. The primary goal of the project is to
- discover how rainforest communities respond after an intact ecosystem is split
- into different size fragments. They found a crowding effect, in which the
- abundance of birds in a forest fragment increased significantly directly after
- deforestation of the adjacent area. The increased number of birds was
- attributed to the migration of birds from the newly clear-cut area to the
- forest fragment. This crowding effect decreased with increasing size of a
- forest fragment.
-
- Both tropical and temperate communities, however, are prone to the same
- problems of inbreeding and loss of genetic variability, which results from
- isolating subpopulations of plants and animals from each other due to habitat
- fragmentation. If too large a distance exists between two fragments and a
- species are unable to disperse across the area in between, the population is
- essentially divided. Inbreeding may result if the subpopulation in a given
- fragment is small. This has not been directly documented, but it is possible.
-
- Size of a fragment and the amount of edge are inextricably linked. Abrupt
- edges often results form fragmenting and ecosystem, in contrast to the more
- gradual natural ecotones. Edge positively impacts many species of plants and
- animals, but as mentioned previously, the species which benefit typically are
- those which do not require human protection and management because they can
- easily meet their resource need outside of the intact ecosystem. The
- scientists from the BDFF project point out one exception. Tamarins and
- marmosets, both species in need of protection , flourish in small tropical
- rainforest reserves because of the luxurian growth of early successional plant
- species, and the lack of large predators which are unable to exist in the
- smaller reserves. Certainly , a system of only small reserves would not
- suffice to protect the genetic heritage of biological diversity in the tropical
- rainforest, but a heterogeneous mosaic of large and small reserves may provide
- the best alternative.
-
- Although edge has typically been associated with an increase in species
- richness, researchers are increasingly documenting how edge effects negatively
- impact the native plants and animals. The BDFF researchers pointed out that
- although the number of species may be higher in edge that the adjacent interior
- habitat, species diversity is usually not. Diversity takes into account not
- only raw number of species, but the relative abundance of the species present.
-
- Another potentially adverse effect of edge is that it inherently reduces the
- size of the habitat interior because of the many physical changes which occur
- where and edge is compared to a human dominated area. Most documented cases of
- edge effects are from forest edges, so I will focus on them. In addition to
- the luxuriant growth of shade-intolerant vegetation at a forest edge in
- response to the increase in available light, a ôseed rainö bombards the forest
- interior, often from introduced exotics. The increased exposure to wind causes
- a higher rate of treefalls and tree mortality, and temperature and humidity are
- quite different at the edge than in the forest interior. These physical
- changes affect the plants and animals of the habitat. Lovejoy and others, in
- the BDFF project in Brazil, found that the understory birds tend to avoid
- artificial edges. They found 38% fewer birds 10 meters from clearing than 50
- meters into the forest, and 60% fewer birds 10 meters from a clearing than 1 km
- into undisturbed forest. An interesting item is that they did not find a lower
- abundance of birds around natural edges, such as interior treefall gaps.
-
- Several authors that I have read have suggested that the abundance of birds
- decreases near an artificial edge due to decreased Nest success. Nest success
- near edge decreased because of the increase in generalist predators and brood
- parasites. As mentioned earlier, populations of brown-headed cowbirds, a brood
- parasite, have increased tremendously as a direct result of human activity,
- these birds have a negative impact on the nesting success of forest songbirds
- that nest near the forest edge. Studies show that while vegetational changes
- may extend from 300-600 meters into a fragment. This makes sense when one
- considers that although generalist predators such as raccoons, cowbirds, and
- chipmunks may concentrate their activity near the edge, they certainly also can
- frequent the forest interior, often to the damage of those species which rely
- exclusively on forest interior.
-
- To reduce how far edge effects penetrate into a natural habitat, a biologist
- Bernard Harris, proposed a system of long-rotation islands, in which and
- old-growth center is surrounded by various age stands of timber. This system
- provides some edge for those species which benefit from it, while minimizing
- the amount of edge between the old-growth center stand and the surrounding
- stands.
-
- Now, to the final section of this term paper, the role that environmentalists
- play and some of the reasons that they are trying to save it.
-
- Rainforests cover less that two percent of the EarthÆs surface, yet they are
- home to some 40 to 50 percent of all life forms on our planet, as many as 30
- million species of plants, animals, and insects. The Rainforests are quite
- simply, the richest, oldest, most productive, and most complex ecosystems on
- Earth. As biologist Norman Meyers notes, ôRainforests are the finest
- celebration of nature as ever known on the planet, and never before has
- natureÆs greatest orchestration been so threatned.ö(4)
-
- His quote is quite true. The following facts listed are direct proof of how
- the Tropical Rainforests are being depleted.
-
- Global Rates of Destruction
- 2.4 acres per second: equivalent to two U.S. football fields
- 149 acres per minute
- 214,000 acres per day: an area larger than New York City
- 78 million acres per year: an area larger than Poland
-
- In Brazil
- 5.4 million acres per year
- 6-9 million indigenous people inhabited the Brazilian rainforest in 1500. In
- 1992, less than 200,000
-
- Species Extinction
- Distinguished scientists estimate and average of 137 species of life forms are
- driven into extinction every day or 50,000 each year.
-
- While you were reading the above statistics, approximately 90 acres of
- rainforest were destroyed. Within the next hour approximately six species will
- become extinct. While extinction is a natural process, the alarming rate of
- extinction today, comparable only to the extinction of the dinosaurs, is
- specifically human-induced and unpreceeded. Experts agree that the number one
- cause of extinction is habitat destruction. Quite simply, when habitat is
- reduced, species disappear. In the Rainforests, logging, cattle ranching,
- mining, oil extraction, and hydroelectric dams all contribute to rainforest
- destruction and produce many undesired effects in the environment such as
- global warming, depletion of the ozone layer, and depletion of the earthÆs
- natural resources.
-
- But now, there may be some help for the rainforest. Until recently, few
- vacationers would even dream of visiting a rainforest. But travelers are now
- abandoning the traditional beach vacation to visit remote, unspoiled areas all
- over the world. They try to avoid the fast pace and congestion of the
- traditional tourist centers, opting instead for more adventure, stimulation and
- a desire to learn while on vacation. This growing trend of travel has come to
- be known as ecotourism.
-
- Though there are many definitions of ecotourism, the term is most commonly used
- to describe any recreation in natural surroundings. The Ecotourism Society
- adds social responsibilities to define ecotourism as ôpurposeful travel to
- natural areas to understand the culture and natural history of the environment,
- taking care not to alter the integrity of the ecosystem, while producing
- economic opportunities that make the conservation of natural resources
- beneficial to local peopleö(5)
-
- However defined, ecotourism is a force shaping the use of the tropical
- Rainforests. This will be even more true in the future due to ecotourismÆs
- rapid growth. Global tourism is one of the largest industry in the world and
- ecotourism is the fastest growing segment of the industry.
-
- Tourism is largely responsible for saving the gorillas of Rwanda from
- extinction. The gorilla was threatened by both poachers and local farmer,
- whose land clearing practices were destroying the gorillasÆ natural habitat.
- RwandaÆs Parc des Volcans, created by Dian Fossey as a wildlife preserve, has
- become an international attraction and the third largest source of foreign
- exchange for Rwanda. Revenues from the $170-a-day fee that visitors will pay
- to enter the park have allowed the government to create anti-poaching patrols
- and employ local farmers as park guides and guards. Even this success is
- danger from the civil war that is encroaching and endangering both the forest
- and tourist industry.
-
- If ecotourism is going to be influential in saving Rainforests, income from
- tourism must reach the people who will ultimately decide the forestÆs future.
- Unfortunately, too often the money generated does not benefit these people.
- Instead, it goes to developed countries, where the tourists originated, giving
- little economic protection to the forests. Profits leak back to the developed
- nations through tour operators, plane tickets, foreign owned accommodations and
- use of non-local supplies. The World Bank estimates that worldwide only 45
- percent of tourismÆs revenue reaches the host country.
-
- In less developed areas, the percentage is often lower. One study of the
- popular ecotourism destination of the Annapurna region of Nepal found that only
- 10 cents of every dollar spent stayed on the local economy. Within the
- country, the money may end up in the large cities of in the hands of the
- wealthy elite.
-
- Tourist dollars should help to acquire and improve management of conservation
- areas on which the tourism is based, but money from tourism does not often end
- up with the agencies that manage these areas. In Costa Rica, the park service
- does not earn enough money from its entrance fees to manage and protect its
- numerous parks. Only 25% of itÆs budget comes from fees; the other three
- quarters must come from donations. Tourists often resent paying large sums of
- money on entrance fees. Although these fees are only a small portion of the
- money spent on a trip they can be the most important dollars spent in
- protecting the resource because they go directly toward protecting the site.
- The environmentalists and government officials play a vital part in the
- protection of the Rainforests. Without them, all of the Rainforests would
- probably be gone. (4)
-
- In conclusion, the Rainforests, the lungs of the earth will be gone in just a
- few years if the current rates of destruction continue. But luckily, there are
- environmentalists there to protect the rainforest and potentially protecting
- our lives. I say protecting our lives because in the past 100 years the earthÆs
- temperature has risen one degree Fahrenheit. This may sound small and
- insignificant but it is very serious. Combined with global pollution from
- cars, factories, etc. the depletion of the Rainforest has caused the level of
- the earthÆs air quality to lower, more arctic icebergs to melt causing water
- levels to rise around the world causing more erosion and nameless other
- effects.
-
- If within 20 years, more is not being done estimates the rainforest action
- network, our earth will begin to change into a hot planet, flaming with CO2,
- with clouds made up of sulfuric acid, much like the planet Venus. (11) These
- factors, in the advanced stage of Global Warming are what the earth is coming
- to if something is not being done soon about the destruction of the tropical
- Rainforests and various other types of pollution. The earth will become a
- death trap for the human race unless we act now!
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