Click to edit Master title style,Click to edit Master text styles,Second level,Third level,Fourth level,Fifth level,#,Amazon Rainforest,亚马逊雨林,生物多样性 及对于地球的重要性,biodiversity and global importance,The Amazon River,Life force of the Amazon rainforest,Begins as a trickle in the Andes mountains and flows more than 6400km and enters the Atlantic Ocean at Belem,Brazil where it is 480 km wide.,It is still 11.2 km wide 1600 km inland.,It is deep enough for Ocean Liners to travel over 4000 km inland.,The Amazon River,The Amazon River,The Amazon River,There are thousands of kilometers of navigable waters throughout the Amazon and its tributaries.,Carries massive quantities of silt which travels as runoff from the forest floor,Silt is deposited at the mouth of the Amazon creating the largest river island in the world Marajo Island(same size as Switzerland),The Amazon River,The Amazon River,The Amazon River,More than 2,000 species of fish exist in the Amazon River,which is more than what exists in the Atlantic Ocean.,The Amazon River,The“Lungs of our Planet”,Amazon Rainforest Encompasses areas in Brazil,Venezuela,Colombia,Ecuador and Peru,Suriname,Guyana,Bolivia,and French Guinea.,The“Lungs of our Planet”,The“Lungs of our Planet”,If the Amazon was a country it would be the 9,th,largest country on the planet(1.2 billion acres or 48 million football fields).,It represents 54%of all rainforests on the earth.,20%of all oxygen is provided here.,The“Lungs of our Planet”,The“Lungs of our Planet”,Lets imagine a football field.,Biodiversity in the Amazon,1 football field(1 acre)can contain 900 tons(1,800,000 lbs)of living plants,including more than 750 species of trees and 1500 other species of plants.,There are less than 750 species of trees in all North America.,One tree in Peru was found to have 43 different species of ants a total that equals the number of ant species of the U.K.,Biodiversity,Biodiversity,Scientists have a better understanding of the number of stars than they have of the number of species there are on Earth.,Estimates vary from 2-100 million species with the best estimate of 10 million.1.4 million have been named.,1/5 of all birds are found in the Amazon.,Biodiversity,Less than 1%of plant species have been studied for possible uses.,121 prescription drugs currently sold worldwide come from plant sources.,U.S.National Cancer Center have identified 3000 plants that are active against cancer cells.70%are found in the Rainforest,and 25%are,ONLY,found in the Rainforest.,Biodiversity,Watch part of Planet Earths“,Jungles,”,List some examples of unique fauna(animal)diversity.,List some examples of unique flora(plant)diversity.,Time Lapse photography shows plant growth in an“open”area.Why is the Rainforest so productive?,Food,At least 3000 fruits are found in the rainforests;of these only 200 are now in use in the Western World.The Indians of the rainforest use over 2,000.,Food,80%of the developed worlds diet originated in the tropical rainforest,avocados,coconuts,figs,oranges,lemons,grapefruit,bananas,guavas,pineapples,mangos and tomatoes;vegetables including corn,potatoes,rice,winter squash and yams;spices like black pepper,cayenne,chocolate,cinnamon,cloves,ginger,sugar cane,tumeric,coffee and vanilla and nuts including Brazil nuts and cashews.,Indigenous People,There were an estimated ten million Indians living in the Amazonian Rainforest five centuries ago.Today there are less than 200,000.,In Brazil alone,European colonists have destroyed more than 90 indigenous tribes since the 1900s.,With them have gone centuries of accumulated knowledge of the medicinal value of rainforest species.,Rainforest Loss,1-1 1/2 acres of rainforest are lost every second.Thats 1 football field/s(1800/hr,43,200/day).,Some estimates say that we are losing 137 plant,animal and insect species every single day due to rainforest deforestation.That equates to 50,000 species a year.,Rainforest Loss,Massive deforestation causes;,-air and water pollution,-soil erosion,-release of carbon dioxide,-loss of indigenous cultures,-loss of biodiversity and species,Some estimates are that 1.5 football fields(1.5 acres)of Rainforest are lost every second.,It takes roughly 10 seconds to recite your ABCs.This is how much of the Amazon was cut in that time.,We take 10 minutes on average everyday going to the washroom.,This is the effect of 10 minutes in the Amazon,