Rainforest
Preservation
Tropical Rainforest
- what is happening to the Amazon and other rain
forests.
8,000 years ago,
the Earth was covered by approximately 14.8
billion acres of forests. 1The world's forest
area has now shrunk to 8.6 billion acres as
a consequence of human exploitation -- most
of which occurred in the last 50 years.2
In 1800, there were 7.1 billion acres of
tropical forest worldwide.1
There are 3.5 billion acres of tropical
forest remaining.3
Our Shrinking Tropical Forests
We're losing
33.8 million acres of tropical forest per
year - more than the total area of New Hampshire,
Vermont, Delaware, Massachusetts, Rhode Island,
New Jersey and Connecticut
combined --
2.8 million acres lost per month...93,000
acres/day...3,800 acres/hour...64
acres/minute.3
Between 1960-1990, 1.1 billion acres of
tropical forest were cleared.4
Brazil lost 91.4 million acres of tropical
forest between 1980-1990 - almost the total area of North and South
Dakota combined.4
Asia lost almost a third of its tropical
forest cover between 1960-1980 -
the highest rate of forest conversion in the
world.4
Almost 90% of West Africa's rainforest has
already been destroyed.4
75% of Australia's tropical rainforest has
been cleared since the late 1700's.5
Species Extinction
We lose 100 species every day - 4 species
per hour -
due to tropical deforestation.5
At current rates, 5-10% of tropical forest
species will become
extinct every decade.5
About 50% of all mammals and 25% of all bird
species in peninsular Malaysia
will become extinct by the year 2020.6
Species & Their Tropical Homes
Over 50% of the Earth's species live in
tropical forests.3
Tropical forests contain 70% of the world's
vascular plants, 30% of all bird species and
90% of all invertebrates.1
90% of all primates are found only in
tropical forest regions of Latin America,
Africa and Asia.7
In Brazil's
Atlantic Rainforest, 70% of its plants and
most of its 20 primate species are endemic
(found nowhere else in the world) -
95% of this rainforest has been destroyed.4
43 ant species were found on one tree in
Peru -
the same number as in the entire British
Isles.8
Ecuador's tropical forests contain over
15,000 plant species.
There are 13,000 plant species in all of
Europe.9
Madagascar is 2% of Africa's land mass but
has 10,000 species of plants -
80% are endemic.10
Madagascar is home to all of the world's
lemurs (primate species) -
all are endangered.7
Almost 90% of Madagascar's forests have been
destroyed.3
780 tree species have been found in a 25
acre plot of Malaysian rainforest.9
more than the total number of tree species
native to the US and Canada.11
Medicinal Plants
Medicines that derive from tropical forest
plants include:
Curare (muscle relaxant used in surgery),
Diosgenin (birth control pills, arthritis,
asthma), Ouabain (heart medication), Quinine
(malaria, pneumonia), Emetine (bronchitis,
dysentery), Vincristine/Vinblastine
(Hodgkin's disease, leukemia, other
cancers).9
Over 2,000 tropical plants have been
identified by scientists as having
anti-cancer properties.12
In Southeast Asia, traditional healers use
6,500 plants in treatments for malaria,
stomach ulcers, syphilis and assorted other
disorders.9
Indigenous peoples of Northwest Amazonia use
over 1,300 plant species
as medicines.13
Indigenous Peoples
Before 1500, there were approximately 6
million indigenous people living in
Brazilian Amazonia. In the early 1990's,
there were less than 250,000.14
Over 90 different Amazonian tribes are
thought to have disappeared this century.
14
1 Deforestation: Tropical Forests in
Decline, Canadian International Development
Agency, www.rcfa-cfan.org/English/issues.12.html,
1998.
2 State of the World's Forests 1997, Food &
Agriculture Organization of the United
Nations.
3 1998-99 World Resources: A Guide to the
Global Environment, A Joint Publication of
the World Resources Institute, U.N.
Environment Programme, U.N. Development
Programme and the World Bank, Oxford
University Press, 1998.
4 The Last Frontier Forests, World Resources
Institute (WRI), 1997.
5 "Tropical Forests," WRI, www.wri.org/biodiv/tropical.html,
1998.
6 Danish Coop. for Environment & Development
-- with data from World Conservation Union &
Malaysian Nature Society, 1998.
7 The Pictorial Guide to the Living
Primates, Noel Rowe, Pogonias Press, 1996.
8 The Diversity of Life, E.O. Wilson,
Belknap Press, Harvard University, 1992.
9 The Primary Source, Norman Myers, WW
Norton, 1992.
10 The Conservation Atlas of Tropical
Forests: Africa, The World Conservation
Union, Simon & Schuster, 1992.
11 There are 679 tree species native to the
U.S. & Canada, according to: A Field Guide
to the Major Native and Introduced Species
North of Mexico: Trees of North America, C.
Frank Brockman, Golden Press, 1986.
12 Trees of Life: Saving Tropical Forests
and their Biological Wealth, Kenton Miller &
Laura Tangley, WRI/Beacon Press, 1991.
13 The Healing Forest, R.E. Schultes & R.F.
Raffauf, Dioscorides Press, 1990.
14 Cultural Survival, 617-441-5400. Also,
see footnote 12, Trees of Life.
(April 1999) |
2.8 million acres lost per month...
93,000
acres/day...
3,800 acres/hour...
64
acres/minute.
We lose 100 species every day
4 species
per hour
due to tropical deforestation.
In Brazil's
Atlantic Rainforest, 70% of its plants and
most of its 20 primate species are endemic
(found nowhere else in the world)
95% of this rainforest has been destroyed.
Over 2,000 tropical plants have been
identified by scientists
as having
anti-cancer properties.
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