The Evolutionary Process Of Pollination Of Flowers

The Brazilian Rainforest is one of the most unique, vast, and diverse regions of the world. To get a general idea of the diversity of the Rainforest, it makes up a total of one-third of the world forests (more than four million square kilometers), it contains half of the total number of named species in the world (eighty-thousand plant species, 1,500 fish species, and one-forth of the 8,600 bird species), and is the world largest holder of genes (Library 138-139). To say the least, the Brazilian Rainforest is one of the most important natural resources we, as humans, know. It would seem that this knowledge, alone, would also make the Brazilian Rainforest one of the most protected land areas on Earth as well. However, the situation is

Tropical rainforests are the Earth?s oldest, richest, most productive, and most complex living ecosystems. They are located throughout many of the world?s continents including South America, Africa, and Asia and are defined by a few specific factors. Their location must be within the regions of the tropics and they must receive between 4-8 meters of rain per year (compared to about 1-2 meters in the United States). These forests also have no ?seasonality?, which means that they lack a definite dry or cold season of slowed growth.

Did you know that the rainforest is a fantastic biome? It has three parts that make it special. The forest is also home to more plant life than any other. It’s pretty big. Rainforests have a climate and appearance, producers, and consumers specific to the ecosystem.

The beauty, majesty, and timelessness of a primary rainforest is indescribable. It is impossible to capture on film, to describe in words, or to explain to those who have never had the awe-inspiring experience of standing in the heart of a primary rainforest. Rainforests have evolved over millions of years to turn into the incredibly complex environments they are today. Rainforests represent a store of living and breathing renewable natural resources that for eons, by virtue of their richness in both animal and plant species, have contributed a wealth of resources for the survival and well-being of humankind. These resources have included basic food supplies, clothing, shelter, fuel, spices,

Down on the ground there is an immense amount of biodiversity, however animals who call this layer of the rainforest their home, must adapt to living on the ground and through selective pressures develop features that protect them. For example, at the exhibit there were little orange frogs called Golden Mantella, who at first sight stood out in contrast to the brown and green environment of the forest floor. However, through further reading it seems these small creatures have been selected for orange skin because it advertises to predators that they taste bad, and therefore protects them and guarantees that their genes will be passed

Tropical rainforests have long been home to indigenous peoples who have shaped civilizations and cultures based on the environment in which they live. Great civilizations like the Mayas, Incas, and Aztecs developed complex societies and made great contributions to science. Living from nature and lacking the technology to dominate their environment, native peoples have learned to watch their surroundings and understand the intricacies of the rainforest. Over generations these people have learned the importance of living within their environment and have come to rely on the countless renewable benefits that forests can provide.

Existing near the equator along countries such as Brazil and Costa Rica, this zone has a combination of warm temperatures, high humidities, and abundant precipitations. Factors like these define what the tropical zone is. For example, due to the high temperatures and frequent rainfalls, the soil is considered poor. This is so, because the temperature and the rainfall causes a quick decomposition instead of building up of organic materials in the soil. Therefore, once the tropical zone is altered by human activities, it is very hard to recover with the nutrient poor soil. In addition, it is expected that in the tropical zone there would be large trees. These large trees creates a closed canopy in which light just barely reaches the forest floor. Going along the topic of sunlight, it is a crucial abiotic factor in this zone. Consequently, there is competition among trees to obtain the limited amount of sunlight through the various vertical stratification of tree levels. Some key characteristics of trees in relation to their habitat is their ginormous height. In this zone, rainfall determines the vegetation. Thus, with the abundant rainfall, trees can reach up to fifty to sixty meters in height. Another key characteristic is their diversity. It has been reported that in a 2.5 acre land, there is approximately three hundred different species of trees. The main type of

One of the most growing environmental concerns of our planet is the loss of tropical forests. Tropical forests are depleting at an alarming rate. A rate where demand far exceeds the supply. Of all the forest habitats, none seems to be more threatened than the tropical rainforests, as the world loses up to 20 million hectares of these forests annually, an 80 percent increase over previous estimates. In 1950, 30 percent of the world 's surface was covered by rainforests. By 1975 this area had shrunk to 12 percent. Today, tropical forests account for about 8 percent of the planet 's surface, an area roughly equal to that of the United States, constituting slightly less than half their prehistoric cover. Findings have shown that Africa has lost 60 percent of its original rainforests and Central America and Southeast Asia have lost nearly two thirds.

Although relatively small in size, Ecuador is one of the most biologically diverse nations in the world. A drastic range of altitude and geographical diversity in such a small area has resulted in a high number of diverse climactic regions. Because of their very different climates and altitudes, Ecuador’s four main regions, the lowland Pacific Coast, the Andes Mountains, the Amazon rainforest, and the Galapagos Islands, are each home to a wide variety of plant and animal species. These many distinct ecosystems and the hundreds of endemic species residing within Ecuador’s borders have led scientists to classify it as a biodiversity “hotspot”.

Did you know that Brazil is home to one-third of the world’s rainforests? The beautiful South American country, Brazil, whose size is 3.288 million square miles, is home to one of the largest rainforests of the world, the Amazon rainforest. Something that a lot of people don’t know is that the Brazilian rainforests are extremely important and they not only affect the people of Brazil, but everyone around the world. Since the Amazon rainforest is so large in size, it would only make sense if it affect the world more than other rainforests. Therefore, Brazilian rainforests affect our world greatly because of all of the things that we gain from it, the harmful effects of deforestation, and because of deforestation, we need to teach people to conserve the rainforests.

Not only is the rainforest filled with various plant life. It also is the habitat for thousands of different breeds

The canopy in a rainforest is a dense layer of intersecting branches and leaves that support most of the forest’s life. Creatures such as sloths, birds, monkeys, snakes, insects, and frogs can be found in the amazon jungle’s canopy. They live there to keep away from the predators on the forest floor, and because of the large supply of fruit and nuts that grow in the canopy. While these are good reasons for living way up in the trees, there are a few downsides. A large amount of the sunlight is absorbed by the canopy, making it an extremely hot climate. Because of this constant source of light energy, the leaves use it to create oxygen. Another downside is impaired vision. The leaves and branches that make up the canopy are so dense,

Finally, the Brazilian government and the rest of the world must come to realize that the increasing destruction of the rain forest threatens the delicate balance between humans, plants, and animals. The Kayapo have successfully maintained this balance for thousands of years. We have an obligation to ensure they are able to continue to maintain this balance.

With rainforest deforestation being one of the first major causes of harm to the environment due to civilization, it is known globally that we have destroyed a huge portion of the rainforests on the Earth. Richard Schiffman is an environmental journalist, poet, and author. In his article, “No, Tropical Deforestation Rates Aren’t Falling,” he avows, “The planet has lost 46% of its forests in the past 12,000 years. 15 billion trees are felled each year. Rainforest loss accelerated by 62% during the 1990s and 2000s.” (No). Oppenlander elaborates on the same idea stating, “Just a two-acre area of rainforest may contain over 750 types of trees (more than the total tree diversity of North America) and 1,500 species of plants.” (24). Thinking of how much of the rainforest has disappeared, we know that millions of species have been lost and we can assume that millions of unknown species have been lost. Ian Sample is a science correspondent for the website “The Guardian”. In an article he wrote entitled “Amazon’s doomed species set to pay deforestation’s ‘Extinction Debt’” he

Conservation of Biodiversity in Peruvian Amazonia through integrated action Conservación de Biodiversidad en la Amazonía peruana a través de acciones integradas Sanna-Kaisa Juvonen1*, Luis Campos Baca2, León Bendayan Acosta2, Ada Castillo Ordinola2, Lizardo Fachin Malaverri2, Darwin Gómez Ventocilla2, Risto Kalliola2, Kember Mejía Carhuanca2, José Luis Mena Alvarez2, Víctor Miyakawa Solís2, Fernando Rodríguez Achung2, Juan José Rodríguez Gamarra2, Kalle Ruokolainen2, Jukka Salo2, José Sanjurjo Vilchez2, Pekka Soini Nordberg2 & Hernán Tello Fernandez2