Public Service Announcement:The Affects of Deforestation on

BiodiversityBy: Mariel Sass and Abby Spector

What Is The Problem?

• deforestation is decreasing the biodiversity on Earth

• deforestation: removal of a forest or trees to build a building or to be used for paper

• biodiversity: variety of organisms in an ecosystem that can be used to determine the health of an environment

• the forest is home to many animals

• food chains will greatly be affected

• without one animal, its predators will run out of food and the animals it eats will grow as a population.

http://www.novamind.com/connect/nm_documents/show_branch/Power/7A711825-F356-4C0B-9D33-1C19CB9CA7AA/1926306186

Is There Anywhere In Particular That Is Being More Heavily Affected?

• rainforests are greatly affected by deforestation

• destroys the natural habitats of 50-90% of all organisms

• tropical rainforests: home to over 50 million organisms & 50-100 of the different organisms are lost everyday.

How Are We Causing It?

• building roads • malls• houses• resorts• supplies (paper and wood)

http://worldwildlife.org/threats/deforestation

Possible outcomes if not stopped or prevented?

• organisms that live in forests and rain forests will be wiped out

• trees and plants won’t be there to give us oxygen

• animals can go extinctIf we do stop…

• there will be a lot more organisms living because we are the main source of deforestation

What is the environmental impact of deforestation on biological

diversity? • we cut down numerous trees to build resorts and roads• animals eat plants and leaves on trees • forced to move somewhere else • chain reaction• Stewart Smith who wrote “The Effects of Deforestation on Animals” claims that when deforestation happens: increases the chances of the species becoming extinct• the value of a tree alive is greater than when it is dead • trees have a never ending cycle of taking in carbon dioxide and putting out oxygen • snowball into a bigger problem: animals move into different areas and possibly mix in with suburban or urban life when they don’t belong there.

• factories and other big buildings are opening up more opportunity to create more air pollution

• if roads are created it makes more air pollution with emission from cars

1.  Reduce Your Consumption of Paper Products

• buy organic• buy reusable

2. Think Twice before Printing• email!

3. RECYCLE• recycle paper

How Does Deforestation Impact Natural

Biogeochemical Cycles?Carbon

• trees take in CO2 in order to do photosynthesis • there isn’t as much carbon intake• creates more of a “greenhouse” effect

• carbon traps heat in our atmosphere. • Trees help regulate the carbon and oxygen

levels, and without them, the levels are abnormal

http://www.thegreeneconomy.com/target-on-greenhouse-gas-emissions-reduction-at-17

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http://blog.conservation.org/2009/12/16-percent-greenhouse-gas-emissions

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Citations"What Does Deforestation Do to Our World?" The

Amazing World of Science. Web. 30 May 2013.

"Deforestation and Loss of Biodiversity." Viva! HOT! Campaign. Vegetarians International Voice for Animals, Web. 31 May 2013.

"Climate Change and Deforestation: Pre-Human Effect On Biodiversity in Northern Madagascar." ScienceDaily. ScienceDaily, 23 July 2012. Web. 31 May 2013.

"Deforestation." National Geographic. Web. 31 May 2013.