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Transcript of Ecosystem loss
Ben Brooks, William Garner, Mark Gersten, Cecilia Hu, Katelan Kent, Melissa Langert, and Erica Smedley Deforestation Endangered Animals and Biodiversity What are Endangered Animals? Causes And Consequences Of Endangered Animals Where it Happens Natural Causes and Consequences of Deforestation Man-Made Causes and Consequences
of Deforestation What is Deforestation? Deforestation is when massive amounts of trees are destroyed. The climate, soil, and animals are all affected because there are no more trees to provide clean, cool oxygen that helps the inhabitants of the forest to stay cool and keep ozone out of the air. Deforestation can cause erosion, making drinking water quality muddy and dirty. The trees deliver nutrients for the soil to provide a place for more native plants to grow. The trees also allow a habitat for the animals to live in. Deforestation can be caused by nature. Some
causes from nature can be forest fires by burning down the forest, volcanic eruption causing forest fires, earthquakes by knocking down trees, hurricanes by violent winds knocking down trees, and tsunamis by crashing down on top of the trees and ripping them off the ground. When trees are knocked down or burned, many animals and plants that lived in the once alive forest now are exterminated or become scarce. Also, the removal of the trees causes desertification. Trees run a process called transpiration. In this process, the excess water form the process of photosynthesis is released into the air, keeping the air moist in the forest. Without this water, the ecosystem turns into a desert. Some of the causes of deforestation that man can cause are clearing for agriculture to plant crops, logging to gather wood resource, mining to find material such as metal and coal, drilling for oil to power our cars and to help us cook, and urbanization to build new cities and buildings. The consequences of man-made deforestation are the same as for natural deforestation except some of the buildings might cause global warming from smog they might release.Logging can also cause animals to move to a better habitat, causing the number of mosquitoes that have malaria (whom were once prey to the animals that left) to increase. Endangered animals are animals that are in danger of becoming extinct. Some animals become extinct because of natural causes. Humans are a big reason that animals are becoming endangered. When animals are not seen for 50 years, they are considered extinct. Causes of endangered animals include human activities like hunting, habitat destruction,not enough food for the animals to live, over-exploration ,pollution,contamination, global climate change, agriculture, urbanization, overfishing, bottom trawling in the oceans, damming and dredging of bodies of water, draining and degradation, over-harvesting, war and conflict, invasive species, and natural causes.
Consequences of endangered animals are because of the animals being endangered, the other animals that depend on them become endangered as well. The animals could also be important to us because it might be able to create a medicine if we use it but if it's endangered you could cause it to become extinct by using it. Biodiversity is really just how much of what animal lives in a specific habitat. It is what connects all species on Earth. A few reasons to conserve biodiversity are new medicines and cures can be made from plants and animals, biodiversity keeps the globe's ecosystems balanced, it provides us with natural beauty, and species that are useful to us are becoming endangered. Without biodiversity, the environment can break down. Deforestation can happen all over the world. Some specific places are:
-England's temperate forests
-Many forests in Asia
- The US
-The Democratic Republic of Congo
- West Africa
Brazil, Canada, the US, Indonesia, China, Russia, and the Democratic Republic of Congo amount to 60% of deforestation on Earth. Ever since the 19th century, 90% of West Africa's lush forests have been cut down. The Amazon rainforest has lost 15% of its forest cover. Deforestation basically occurs around the world. Pollution Air Pollution Our air is being polluted more and more every day. What causes this? Well, the main answer is us. But there are other ways too. All of these ways release gases (mainly ozone). Ozone can be both good and bad. It can be good if it is up in the sky in the ozone layer where it can block most of the Sun's heat so we won't burn. The ozone can be bad when it's close to the ground. It can make us sick and have lung problems and we won't be able to breath. There is actually a solution for this. Trees suck in the ozone as nutrients and rid the air of them. So deforestation is causing air pollution. The Basics of Biodiversity Water Pollution The End Questions or Comments? Today, water is so polluted that 1 billion people don't have clean water. So much that 3.5 million people die each year from water-related diseases and is the second leading cause of death for kids under 5 years old.Water pollution is so bad that 70% of water is unfit for humans.Water pollution can be caused by people littering and trash being blown or swept away into a body of water from oilspills and acid rain. Of course, there are many more causes .Water pollution can kill fish and can cause water-borne illnesses and diseases. Sources library.thinkquest.org wwf.panda.org chge.med.harvard.edu priweb.org Threatened Habitats by Uma Sachidhanandam Copyright 2004 by Times Media Private Limited What We Can Do To Stop This Now that you've learned about these issues, learn about how to stop them! Here are some ways you can help: First of all, recycle! Recycling reuses paper. So recycling saves a tree from being cut down for paper! Throw away your trash! Animals could mistake a piece of garbage for food and either choke on it or get sick from being contaminated. You can pick up trash you see so it doesn't blow into water and contaminate it. You can carpool with a friend, ride a bike, or walk! Doing so won't emit as much gas as riding in a car or won't emit any at all! Please help stop these issues by using these methods! Four children gather to take a picture with a cut down forest in the background. Copyright 1999 by the U.S. Forest Service Copyright by Peter Essick Smog rises from factory chimmineys, polluting the air. Copyright June 22nd, 2007 by UNEP discoveryeducation.com wateroneworldsolutions.org app.discoveryeducation.com britannica.com botany.uwc.com discover.prod.sirs.com enviroment.nationalgeographic.com A river is polluted with trash and other contaminating items. buzzle.com ask.com ehow.com about.com factmonster.com Animals Under Threat by Louise and Richard Spilbury Biodiversity of Temperate Forests by Greg Pyers What is Ecotourism? Ecotourism is when native people in an area show tourists around the area the live in. Positive Effects of Ecotourism Some positive things are that it
educates the tourists
it creates jobs for the native people
there are tours so you can see the world in a group
you don't have to go alone, there are always people with you
you can see the world Negative Effects of Ecotourism Some negative effects are
trees are cut down for firewood
it is really expensive
hotels might be made so even more trees get cut down
it disturbs wildlife
people will litter
cars and jeeps will pollute the air worldpreservationfoundation.org Central Idea Global communities cooperate to solve worldwide issues. This video shows us how Rondonia, Brazil's forests have changed throughout time.
Form: What is ecosystem loss?
Function: What does ecosystem loss do?
Causation: Why is ecosystem loss occurring?
Change: How is ecosystem loss changing?
Connection: How is it connected to anything else in the world?
Perspective: What are the different views and opinions of ecosystem loss?
Responsibility: What can we do to help stop ecosystem loss?
Reflection: How do we know ecosystem loss is occurring or even real? The Key Concepts http://www.youtube.com/watch?v=EllYgcWmcAY Questions and comments Thank you for watching our presentation!