“Maintaining biodiversity at its present level is impossible if people are going to achieve a reasonable standard of living in the near future”
- Discuss this with reference to a tropical biome you have studied (40 marks)
Biodiversity means the variety of life forms/organisms in an ecosystem, biome or entire planet. Globally, biodiversity is not evenly distributed. It generally increases from the poles towards the equator as around 50% of the world’s plants and animals live in tropical rainforests. This is because of the proximity to the equator causing a warmer, more moist, stable climate which means plants grow better and can support more species higher up in the food chain. Standard of living is the level of wealth, goods and
…show more content…
However, due to more people searching for plots there is greater pressure on the amount of available land. The logging industry is responsible for a relatively small level of deforestation, accounting for 3% in Brazil. Consequently, all these activity contribute together to the rapid loss of what is left of the rainforest and a large proportion of the world’s biodiversity. All of the resources that the rainforest provides could be lost in the next 40 years. The Grande Carajas mining project, Brazil as well as other individual projects have created a series of problems for the rainforests. The Grande Carajas project in particular is a large complex of open pit mines, which takes up more than 6miles of rainforest. Along with many other schemes of this nature, the Grande Carajas is contributing to the continued deforestation of the Amazon. In addition large areas were deforested to make way for the construction of The Trans-Amazonian Highway, which was meant to allow access in and out of several project schemes. After the highway was built evidence of soil erosion could be seen as the ground was left exposed due to the lack of vegetation. Access roads like this have been known to encourage settlements for the transport links they offer, and people will often settle close to the road, which leads to deforestation in order to create space. The HEP Project; the Tucurui dam also had similar
Deforestation presents in an abundance of ways, including fires, clear-cutting for agriculture, ranching and development, unsustainable logging for timber, and degradation due to climate change. The foremost reason of deforestation in Latin America is the requirement for food, fuel, shelter, and foreign exchange. Year on year, a space of tropical forest the size of Great Britain is "converted" from an area equal to the size of Europe. Ever since 1950, according to the U.N. Food and Agriculture Organization (FAO), half of the world 's forests have disappeared. “Latin America has lost 37 percent of its tropical forests,” says the FAO. As more and more of Latin American forest are degraded, more and more detrimental effects are being seen. Deforestation is changing a number of resources for tribal groups, altering their way of life, temperatures are increasing at a dangerous rate because of a buildup of carbon dioxide in the atmosphere, habitats and species such as plants and wildlife are being annexed due to the destructive effects of deforestation. Deforestation is inarguably helpful to supplying money to countries that sell the products from the forest, but huge wealth being generated from the forests comes with large-scale environmental and social costs. The local residences are not benefitting and the funds are being siphoned out of the region.
The Amazon Rainforest is a mighty jungle filled with an array of exotic species of wood, like mahogany, and rich natural resources such as gold, copper, tin, and nickel. Naturally, people want to make a profit, but the rainforest’s trees stand in the way. Logging is the main source of deforestation. Every year, millions of trees are cut down to be made into timber. Many times, these logging operations are illegal. These operations will keep exploiting the Amazon for its exotic timber, not caring that many of these species of plants are either rare, or help support rare species and ecosystems. Mining also creates deforestation, but not as severely as logging. Trees are cut down to make way for mining operations that dig for non renewable resources like copper and gold. Trees are also used as charcoal to help produce pig iron. A third cause of deforestation is agriculture. Cattle ranches and soy plantations are created where the Amazon Rainforest once stood. As people expand their farms, they must cut down the areas they now use for farming. Trees are also cut to make space for animal pens. Governments also contribute to the deforestation problem by building roads and creating infrastructure. Although these roads help with communication and navigation, they cut through the rainforest, and often help illegal loggers create new roads from their operations in the jungle to these roads that connect with civilization. All of these factors have helped cut down the Amazon Rainforest. In the past
It has been noted that in the early 1970s the Brazilian Amazon covered 4,001,600 s.q. km. However, as of 2015, the remaining coverage has decreased to roughly 3,331,065 s.q. km. This indicates a total forest loss of 670,535 s.q. km in the short timeframe
During the previous years, one of the biggest threats the world as a whole faces is the destruction of our environment, mainly through deforestation. Deforestation is the destruction of forests in order to increase land usage for agriculture, grazing and urban development. Generally forest clearers cut or burn the trees to clear land. Deforestation is one of the major causes of environmental problems in Brazil with the rate it is developing. Brazil's development is coming at a time when scientists believe that the loss of the Amazon's forests, the Atlantic forest and the Cerrado will affect the way the planet functions. Brazil has the most amount of forest in the world, if the cutting of forests keeps going on this way it will affect the water
When small farms sell their land to large companies (or the corporation deforests their land as an illegal land claim), the equilibrium of the rainforest is thrown off balance. While natives have long been sustainably cultivating the land, large companies are concerned with quick profit. It is estimated that around 120,000 hectares of land have been deforested to make way for soy. Road are the most comprehensive indicator of frontier expansion and deforestation in the Amazon (Cesario
The largest rainforest in the world is being deforested with little opposition. It is a rainforest that humans have been benefiting from for hundreds of years. Notably, this rainforest is the Amazon, and many people ignore the destruction happening in there and do not realize that thousands of acres of land have been deforested. On the other hand, they are clearing these areas to gain significant resources such as diamonds, gold, lumber and medicinal plants. For these reasons, a controversy over the deforestation in the Amazon has arisen. Although the deforestation has provided valuable natural resources businesses in the forested regions, the removal of the Amazon rainforest is detrimental to its biodiversity because it creates a dysfunctional habitat.
Marcio Astrini, a coordinator from the Amazon campaign, a convention that makes donations to save the rainforest, says, “You can’t argue with numbers, this is not alarmist, it’s a real and measured inversion of what had been a positive trend” (Newstrack). Marcio is one of the people who thinks the Rainforest is important to the people in South America and North America. Scientists have come up with different solutions to help the rainforest, but also for people to get their resources. Governments of Brazil make up laws to save their rainforest, so they try to add nature reserves or place a law that farmers and lumberjacks to chop down trees from a different forest. This effort should continue because it could help the Amazon Rainforest to continue to grow new trees. This could allow the rainforest to grow larger than before. The Rainforest is the biggest out of all of the forests out there, the Brazilian governments are struggling with what laws would be effective to pass on. Their congress established regulations “limiting forest burnings, logging, and large landholdings” (Johnson
Since many of the settlers are not from the local population who have a proven track record in the use of forests and natural resources in a responsible and sustainability - quite the contrary comes Most of the new settlers from other parts of the country and is being used in terms of known not merely as a foothold for the loggers. Incra used the Amazon jungle as a safety valve to solve the distribution of land and that the problem was that creates a lot of problems. Who were they really need to be placed under the control of the ground timber and forest companies lose a lot when settlements are not built on land that was forest, including the removal of before. In total, we are all losers, because the more damaged forest in Brazil higher greenhouse gas emissions and become more difficult to reduce climate change. Removal rate of the Amazon rainforest in Brazil fell by 77% in the past seven years, but the annual carbon emissions associated with deforestation has not declined significantly, according to a Brazilian study collected satellite data and maps of biomass to develop a model for this change. The difference is due largely to the delay caused by the slow natural decomposition of carbon stocks operations,
2.4 acres per second- two football fields of rainforest disappear every second (World History 1). Deforestation, or the clearing of trees and plants on a massive scale, has been happening since Portugal first colonized the region known as the Amazon Rainforest, which is in Brazil. As development and population have increased, relief from overpopulation has been found in rainforest land. Currently, use of the land is a result of industrial use, poverty and agricultural plantations. The excessive clearing of rainforest demonstrates the devastating destruction that is possible, from killing animal species to eliminating water
Deforestation. Deforestation is one of the most critical problems in Brazil. Destroying natural habitat is a direct threat to biodiversity (Wilson et al., 2015). Historically, deforestation rates have been high in Brazil fluctuating between 25,000 to 50,000 kilometers squared per year. If deforestation were to continue at the historical rates, then most of the Amazon would disappear within 50 to 100 years (Shukla, 1990). While contemporary deforestation rates are not so severe, they are still high and have recently begun to increase. In 2009, Brazilian deforestation was estimated at 7,008 kilometers squared (May et al., 2011). After a slight decrease in the deforestation rate, with a valley in 2012 at 4,571 kilometers
Every single day, the Amazon Rainforest is losing a massive amount of area due to deforestation. The Amazon is the world’s largest tropical rainforest and it is the world’s source of oxygen. Deforestation has slowed down years ago, but now, it is starting to increase and does not show that it will slow down. Earth without tree’s, the human race and animals would not be able to survive. Today’s society is not taking deforestation as a serious matter. If deforestation were to be left alone, the planet and animals would not be the only ones suffering from it. Deforestation is a big issue that has to be made known and find a solution to end it. The causes and the effects of deforestation should be made known to the society and the importance
The main area of forest loss in both the 1990s and the 2000s was in the so-called ‘arc of deforestation’, which is the highest point of deforestation in the Brazilian Amazon. In 2002, approximately 47 percent of the Brazilian Amazon was under some sort of human pressure. This pressure was due to either human settlements (19 percent) or in areas subject to emerging human pressure (28 percent). These areas under pressure were found mainly along official roads in the so-called “arc of deforestation” (Davin, 2010).
Forest clearing in Brazil has already claimed casualties, but the animals lost to date in the rainforest region are just one-fifth of those that will slowly die out as the full impact of the loss of habitat takes its toll. "For now, the problem is along the arc of deforestation in the south and east where there is a long history of forest loss,” said Dr. Jose Manuel Ochoa-Quintero, “we expect most of the species there to go extinct, and we'll pick up more extinction debt along the big, paved highways which are now cutting into the heart of the
The complexity of life on Earth requires a complex system of interactions to ensure the sustainability of life. The driving force of this system of interactions is biodiversity. McGrath of the National Wildlife Federation provides a clear definition of this concept. Biodiversity is simply the variety in biological systems (McGarth). Although this definition seems to imply variation in organisms, the concept describes something more complex. Biodiversity specifically refers to the variety in three areas of biology: species, genetics, and ecosystems (McGrath). Therefore, biodiversity can be defined as the diversity and interactions that exist in species, genetics, and ecosystems. In this essay, I will illustrate that biodiversity is fundamental to the sustainability of life on Earth as the complex network of biological interactions ultimately benefits individual organisms and I will describe one current threat to biodiversity.
Today, the effects of the changes caused by men can be felt by nearly 17,000 species of plants and animals that are face-to-face with extinction (Kucuk and Erturk, 2013). This threat of the mass extinction of the species was recognised several decades ago; however, since then, the best efforts have hardly done more than slow the pace of the accelerating damage (Myers, 2003). More than a decade after Myers (2003) made this point, Professor Sir John Lawton (2015) explains that biodiversity loss is still getting worse, not better; pollution in the oceans is rising; the planet seems to be running out of fresh water and its soils are degrading at an alarming rate.