Biomes Earth can be divided into Biomes Division into Biomes Latitudes define some biomes.
Biomes
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Transcript of Biomes
By: Heather Straynick and Trisha Covert
Endangerments-Deforestation Conservation International is trying to stop
deforestation along with other smaller organizations.Scientist estimate that we are losing an area of the
size of Pennsylvania each year. And if the deforestation continues at this rate we may lose rainforests altogether within the next one hundred years.
Deforestation occurs for a number of reasons: human population is increasing (people moving from cities to forest areas), logging of forests (for firewood, charcoal, and building materials), the conversion of forest to pasture land, and mining.
Removal of the forest can change the natural rainfall patterns.
Other EndangermentsMining for gold, bauxite, and other minerals
can lead to drastic destruction of the land. Once the land has been mined, the land is left
vulnerable to massive erosion.Natural disasters, volcanoes, war, the
construction of dams, and poverty in developing countries have contributed to the destruction of tropical rainforests.
Climate “Average long-term weather pattern of a region”Two season in the tropical rainforest: rainy and dryThe warmest and coldest months do not differ by more than
five degrees. Temperatures are consistent between 70-90 degrees
Fahrenheit .Never drops below 64 degrees Fahrenheit.
Precipitation is distributed evenly throughout the yearAnnual rainfall exceeds 2000mm or about 80 inches!!!Tropical Rainforests soil is nutrient-poor and acidic.
Decomposition is rapid and soils are subject to heavy leaching.
The Tropical Rainforest has experienced droughts, floods, hurricanes, and major storms but not on a regular basis.
EffectsEffects of the tilt of the Earth’s axis:
It causes there to be more direct sunlight, then causes for acierated evaporation which makes it wet and hot almost all year round.
Mountains in the Tropical Rainforest effect the amount of rainfall.
Regions of BiomeBetween the lines of 3.39os , 73.18ow is
where most of the regions fall.
Africa, south America, Mexico
regions, Florida,
and southern parts of Asia
Tropical Rainforest LocationThe Tropical Rainforest can be found all
around the Equator between the Tropics of Cancer and Capricorn.
All around the world, in Asia, Africa, Central and South America, Australia and Pacific Islands.
The Tropical Rainforest has experienced droughts, floods, hurricanes, and major storms but not on a regular basis.
Animals of the Tropical Rainforests Scientists estimate that the rain forests maintain more types of animals and
plants than all the other biomes combined!! Rainforests are home to half of the Earth’s plant and animal species. As deforestation continues the more endangered the animals are and die off. Tropical rainforests are homes during the winter to many birds that breed in
temperate latitudes. 137 rainforest-dwelling species- plants and animals go extinct every single day
(Harvard biologist Edward O. Wilson) The animals vary from continent to continent. There are an extremely high number of endangered animals in the tropical rain
forest: Apes Bongo- a large striped antelope from African forests Dhole- a wild dog from Asia Ocelot- a wild cat from the Americas
Mountains in the Tropical Rainforest
Name Where Height Formed Mt. Kilmanjaro Tansania 19,349m 3 hundred
years agoMt. Kinabalu Malaysia 4,101m 10 million years
agoMt. Tahan Malaysia 2,187m 130 million
years agoMt. Puncak Jaya
Papua Island 4,884m Early as 1909
Plants There are over 5000 medicinal plant species in the rainforest.120 prescription drugs sold world wide come directly from
rainforest plants.Rainforest plants are also used to treat malaria, heart disease,
bronchitis, hypertension, rheumatism, diabetes, muscle tension, arthritis, glaucoma, dysentery and tuberculosis, and other heath problems.
Anesthetics, enzymes, hormones, laxatives, cough mixtures, antibiotics and antiseptics come from rainforest plants and herbs.
Harmful plants include: Stinging Tree Tree Sap Lawyer Vine Rainforest Fruits
Tropical Rainforest layers Emergent layer-
giant trees Huge mushroom shaped crowns Receive greatest amount of sunlight but must endure high temperatures,
low humidity, and strong winds Canopy layer-dense covering formed by the uppermost branches of trees.
60-90 feet above ground Branches are densely covered with other plants Home to 90% of the organisms found in the rain forest
Understory layer- Receives 2-15 percent of sunlight Contains young trees and herbaceous plants
Forest Floor- Receives less than 2% of the sunlight\ The floor is a thin layer of fallen leaves, seeds, fruits,and branches that
quickly decomposes
Growing SeasonThe growing season lasts all year.The abundant sunlight, warm temperatures,
and daily rain lead to fast turnover of nutrients and plant growth is rapid.
Water SourcesTropical Rainforest’s produce about 30% of
the Earth’s water.They have deep water tables.Water Table- The level below which the
ground is completely saturated with water. Also called water level.
Watersheds constantly supply clean water running into streams, lakes, rivers, reefs and lagoons is vital for replenishing the homes of their myriad creatures.
Energy Pyramid
Resources http://www.ucmp.berkeley.edu/glossary/gloss5/biome/forests.html http://www.teachersfirst.com/lessons/biomes/rainforest.html http://www.mbgnet.net/sets/rforest/index.htm http://www.teachersfirst.com/lessons/biomes.rainforests.html http://www.blueplanetbiomes.org/rainforest.htm http://www.oecoamaxonia.com/en/news/brazil/48-o-2005-seca-e-tempestade-
na-amazonia http://wiki
.answers.com/Q/Does_the_tilt_of_the_Earth’s_axis_affect_the_rain_forest http://www.world-builders.org/lessons/less/biomes/rainforests/tropi
_rain/rain.html http://www.ewpnet.com/kilimanjaro.htm http://www.malaysiasite.nl/mountkinabalueng.htm http://www.ask.com/wike/Puncak_Java http://www.tropilab.com/tropicalrainforest.html