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Kengo M

The desert biome - 0 views

www.ucmp.berkeley.edu/...deserts.php

5RTo desert biomes

shared by Kengo M on 02 Sep 09 - Cached
  • Desert biomes can be classified according to several characteristics. There are four major types of deserts: Hot and dry Semiarid Coastal Cold
    • Kengo M
      Kengo M on 15 Sep 09
       
      4 major types of deserts
  • Deserts cover about one fifth of the Earth's surface and occur where rainfall is less than 50 cm/year.
  • The animals include small nocturnal (active at night) carnivores. The dominant animals are burrowers and kangaroo rats. There are also insects, arachnids, reptiles and birds. The animals stay inactive in protected hideaways during the hot day and come out to forage at dusk, dawn or at night, when the desert is cooler.
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  • Although most deserts, such as the Sahara of North Africa and the deserts of the southwestern U.S., Mexico, and Australia, occur at low latitudes, another kind of desert, cold deserts, occur in the basin and range area of Utah and Nevada and in parts of western Asia. Most deserts have a considerable amount of specialized vegetation, as well as specialized vertebrate and invertebrate animals. Soils often have abundant nutrients because they need only water to become very productive and have little or no organic matter. Disturbances are common in the form of occasional fires or cold weather, and sudden, infrequent, but intense rains that cause flooding.
  • Hot and dry desertThe four major North American deserts of this type are the Chihuahuan, Sonoran, Mojave and Great Basin. Others outside the U.S. include the Southern Asian realm, Neotropical (South and Central America), Ethiopian (Africa) and Australian. The seasons are generally warm throughout the year and very hot in the summer. The winters usually bring little rainfall.
  • pstudent 1 on 02 Sep 09
     
    Desert biomes can be classified according to several characteristics. There are four major types of deserts: * Hot and dry * Semiarid * Coastal * Cold
  • Kengo M on 15 Sep 09
     
    There 4 types of desets. To find out go hear
Ajay V

Deforestation in the Amazon - 0 views

www.mongabay.com/brazil.html

5RTo

shared by Ajay V on 11 Sep 09 - Cached
  • Hamza Ali H on 11 Sep 09
     
    Home What's New About Contribute Submissions Rainforests Mission Introduction Characteristics Biodiversity The Canopy Forest Floor Forest Waters Indigenous People Deforestation Consequences Saving Rainforests Amazon rainforest Borneo rainforest Congo rainforest Country Profiles Statistics Works Cited For Kids For Teachers Photos/Images Expert Interviews Rainforest News XML Feeds Chinese French Japanese Spanish Other Languages Pictures Books Links Newsletter Education Mongabay Sites Kids' site Travel Tips Tropical Fish Madagascar Contact About this site Providing tropical forest news, statistics, photos, and information, rainforests.mongabay.com is the world's most popular rainforest site. [more] Deforestation in the Amazon DEFORESTATION IN BRAZIL: 60-70 percent of deforestation in the Amazon results from cattle ranches while the rest mostly results from small-scale subsistence agriculture. Despite the widespread press attention, large-scale farming (i.e. soybeans) currently contributes relatively little to total deforestation in the Amazon. Most soybean cultivation takes place outside the rainforest in the neighboring cerrado grassland ecosystem and in areas that have already been cleared. Logging results in forest degradation but rarely direct deforestation. However, studies have showed a close correlation between logging and future clearing for settlement and farming. [Português | Español | Français] Deforestation by state Deforestation Figures for Brazil Year Deforestation [sq mi] Deforestation [sq km] Change [%] 1988 8,127 21,050 1989 6,861 17,770 -16% 1990 5,301 13,730 -23% 1991 4,259 11,030 -20% 1992 5,323 13,786 25% 1993 5,751 14,896 8% 1994 5,751 14,896 0% 1995 11,220 29,059 95% 1996 7,012 18,161 -38% 1997 5,107 13,227 -27% 1998 6,712 17,383 31% 1999 6,664 17,259 -1% 2000 7,037 18,226 6% 2001 7,014 18,165 0% 2002 8,260 2
  • Hamza Ali H on 11 Sep 09
     
    TROPICAL RAINFORESTS: Deforestation in Brazil Click Here Home What's New About Contribute Submissions Rainforests Mission Introduction Characteristics Biodiversity The Canopy Forest Floor Forest Waters Indigenous People Deforestation Consequences Saving Rainforests Amazon rainforest Borneo rainforest Congo rainforest Country Profiles Statistics Works Cited For Kids For Teachers Photos/Images Expert Interviews Rainforest News XML Feeds Chinese French Japanese Spanish Other Languages Pictures Books Links Newsletter Education Mongabay Sites Kids' site Travel Tips Tropical Fish Madagascar Contact About this site Providing tropical forest news, statistics, photos, and information, rainforests.mongabay.com is the world's most popular rainforest site. [more] Deforestation in the Amazon DEFORESTATION IN BRAZIL: 60-70 percent of deforestation in the Amazon results from cattle ranches while the rest mostly results from small-scale subsistence agriculture. Despite the widespread press attention, large-scale farming (i.e. soybeans) currently contributes relatively little to total deforestation in the Amazon. Most soybean cultivation takes place outside the rainforest in the neighboring cerrado grassland ecosystem and in areas that have already been cleared. Logging results in forest degradation but rarely direct deforestation. However, studies have showed a close correlation between logging and future clearing for settlement and farming. [Português | Español | Français] Deforestation by state Deforestation Figures for Brazil Year Deforestation [sq mi] Deforestation [sq km] Change [%] 1988 8,127 21,050 1989 6,861 17,770 -16% 1990 5,301 13,730 -23% 1991 4,259 11,030 -20% 1992 5,323 13,786 25% 1993 5,751 14,896 8% 1994 5,751 14,896 0% 1995 11,220 29,059 95% 1996 7,012 18,161 -38% 1997 5,107 13,227 -27% 1998 6,712 17,383 31% 1999 6,664
Marius S

Importance of the Rainforest - 0 views

www.enchantedlearning.com/...rainforest

5LWh Importance of Rainforest

shared by Marius S on 14 Sep 09 - Cached
  • What is a Rainforest?
  • Rainforests are extremely important in the ecology of the Earth. The plants of the rainforest generate much of the Earth's oxygen. These plants are also very important to people in other ways; many are used in new drugs that fight disease and illness.
    • Luke Whitehouse
      Luke Whitehouse on 14 Sep 09
       
      What is a rainforest - overview - could be good for an intro
    • Marius S
      Marius S on 16 Sep 09
       
      Q1
  • ropical rainforests are found in a belt around the equator of the Earth. There are tropical rainforests across South America, Central America, Africa, Southeast Asia and Australia (and nearby islands).
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  • It is almost always raining in a rainforest. Rainforests get over 80 inches (2 m) of rain each year. This is about 1 1/2 inches (3.8 cm) of rain each week. The rain is more evenly distributed throughout the year in a tropical rainforest (even though there is a little seasonality).
    • Luke Whitehouse
      Luke Whitehouse on 14 Sep 09
       
      Weather conditions and climate.
  • The range of temperature in a tropical rainforest is usually between 75° F and 80° F (24-27° C).
  • Once damaged, the soil of a tropical rainforest takes many years to recover.
  • Tropical rainforests cover about 7% of the Earth's surface and are VERY important to the Earth's ecosystem. The rainforests recycle and clean water. Tropical rainforest trees and plants also remove carbon dioxide from the atmosphere and store it in their roots, stems, leaves, and branches. Rainforests affect the greenhouse effect, which traps heat inside the Earth's atmosphere. Some of the foods that were originally from rainforests around the world include cashew nuts, Brazil nuts, Macadamia nuts, bananas, plantains, pineapple, cucumber, cocoa (chocolate), coffee, tea, avocados, papaya, guava, mango, cassava (a starchy root), tapioca, yams, sweet potato, okra, cinnamon, vanilla, nutmeg, mace, ginger, cayenne pepper, cloves, oranges, grapefruit, lemons, limes, passion fruit, peanuts, rice, sugar cane, and coconuts (mostly from coastal areas).
    • Luke Whitehouse
      Luke Whitehouse on 14 Sep 09
       
      Importance of the rainforests
  • The soil of a tropical rainforest is only about 3-4 inches (7.8-10 cm) thick and is ancient.
  • EMERGENTS: Giant trees that are much higher than the average canopy height. It houses many birds and insects. CANOPY: The upper parts of the trees. This leafy environment is full of life in a tropical rainforest and includes: insects, birds, reptiles, mammals, and more. UNDERSTORY: A dark, cool environment under the leaves but over the ground. FOREST FLOOR: Teeming with animal life, especially insects. The largest animals in the rainforest generally live here.
  • Luke Whitehouse on 14 Sep 09
     
    What rainforests are, where they are found.
jack parker

Rainforest Destruction - 0 views

www.savetherainforest.org/savetherainforest_006.htm

rainforest destruction tourism G5_help

shared by jack parker on 16 Sep 09 - Cached
  • The immediate causes of rainforest destruction are clear. The main causes of total clearance are agriculture and in drier areas, fuelwood collection. The main cause of forest degradation is logging. Mining, industrial development and large dams also have a serious impact. Tourism is becoming a larger threat to the forests.
    • Gurupranav G
      Gurupranav G on 25 Sep 09
       
      A little useful for my Q4
    • jack parker
      jack parker on 04 May 10
       
      useful for my exibition
    • Shaian R
      Shaian R on 16 Sep 09
       
      How can we save the rainforest from destrution
  • The creation of national parks has undoubtedly helped to protect rainforests. Yet, as national parks are open to the public, tourism is damaging some of these areas. Often, national parks are advertised to tourists before adequate management plans have been developed and implemented. Inadequate funding is allocated for preservation of forests by government departments. Governments see tourism as an easy way to make money, and therefore tourism is encouraged whilst strict management strategies are given far less government support. Ecotourism, or environmentally friendly tourism, should educate the tourists to be environmentally aware. It should also be of low impact to its environment. Unfortunately, many companies and resorts who advertise themselves as eco-tourist establishments are in fact exploiting the environment for profit. In Cape Tribulation, Australia, for example, the rainforest is being threatened by excessive tourism. Clearing for roads and pollution of waterways are two of the major problems in this area. The Wet Tropics Management Authority which oversees the surrounding World Heritage Area is promoting tourism to the area before any management plans have been formulated, before any effective waste management strategy has been devised and before any ecofriendly power alternatives have been fully explored.
    • Gurupranav G
      Gurupranav G on 25 Sep 09
       
      Possibly useful for my Q4
  • ...2 more annotations...
  • The immediate causes of rainforest destruction are clear. The main causes of total clearance are agriculture and in drier areas, fuelwood collection. The main cause of forest degradation is logging. Mining, industrial development and large dams also have a serious impact. Tourism is becoming a larger threat to the forests.
  • 5 Large Dams In India and South America, hundreds of thousands of hectares of forests have been destroyed by the building of hydro-electric dams. It was the dominant view that new dams had to be built or otherwise these countries would suffer an energy crisis. However, a recent study by the World Bank in Brazil has shown that 'sufficient generating capacity already exists to satisfy the expected rise in demand for power over the medium term, provided that the energy is used more efficiently' (WRM). The construction of dams not only destroys the forest but often uproots tens of thousands of people, destroying both their land and their culture. The rates of waterborne diseases increase rapidly. Downstream ecosystems are damaged by dams which trap silt, holding back valuable nutrients. Reduced silt leads to coastal erosion. The sheer weight of water in dams has in Chile, Zimbabwe, and Greece led to earthquakes. The irrigation and industrial projects powered by dams lead to further environmental damage. Irrigation leads to salination of soils and industry leads to pollution. Solutions: Aid organisations like the World Bank have traditionally favoured spectacular large-scale irrigation and hydro-electric projects. In all cases when such projects are proposed, there has been massive opposition from local people. Reform of the World Bank and other such organisations, and support for campaigns against large-scale dams is needed.
Thomas C

Borneo - 0 views

www.globio.org/...article.aspx

5LWh

shared by Thomas C on 07 Sep 09 - Cached
  • Hornbills are important to the tropical rainforest of Borneo. Their bills help them eat large fruits and carry seeds to new areas of the forest
    • Thomas C
      Thomas C on 07 Sep 09
       
      Look at the size of that things nose
  • The island of Borneo started as a single volcano beneath the sea. Millions of years ago, it erupted. Over time, smaller eruptions and earthquakes joined land together to form an island. Today, Borneo is the third largest island in the world. It is twice the size of Japan. Three countries share the island: Malaysia, Indonesia, and Brunei.
    • Thomas C
      Thomas C on 14 Sep 09
       
      A volcanic island? Intresting.
  • Over 16 million people live on Borneo. Borneo’s landscape and wildlife are diverse and include high mountains and rugged coastlines. Most of the island is covered with dense, ancient tropical rainforest. Borneo’s rare and endangered wildlife includes the orangutan, Asian elephant, proboscis monkey, flying frog, and many species of rare plants.
    • Thomas C
      Thomas C on 14 Sep 09
       
      With so many rare species, Borneo shoud be saved!
  • ...2 more annotations...
  • Borneo’s rainforests are home to thousands of endemic species of animal, reptile, and insect. These include rhinos, hornbills, macaques, gibbons, tarsiers, and slow lorises. It also has some of the world’s strangest creatures, like flying lizards and frogs (they actually glide using webs of skin). New creatures are still being discovered. In 2005, for example, scientists discovered a large cat-fox mammal in Borneo’s rainforest. Orangutans: Borneo’s Most Famous Animal
  • Borneo’s hilly terrain, rivers, and thick forests have made it difficult to develop until recently. But in the late 1940’s, machines, trucks, and chainsaws were brought to Borneo. These made it possible for settlers from the coastal areas to cut their way into the interior of the island.
    • Thomas C
      Thomas C on 14 Sep 09
       
      Boo! no more deforestation
  • Thomas C on 07 Sep 09
     
    more new species? Borneo must be pretty big.
  • Thomas C on 14 Sep 09
     
    Brill website! come here!
Woo Hyun C

Endangered Rainforest Animals - 1 views

www.buzzle.com/...ngered-rainforest-animals.html

shared by Woo Hyun C on 09 Sep 09 - Cached
  • The harpy eagle is endangered mainly because of habitat loss and hunting.
    • Shashank A
      Shashank A on 16 Sep 09
       
      Protect the harpy eagle
  • there is a probability that about 30 percent of the Manatees will be extinct in the next three generations (90 years).
  • The majors threats to its population are loss of habitat and capture for commercial pet markets.
    • Woo Hyun C
      Woo Hyun C on 05 Oct 09
       
      the toucan is endangered because of the pet markets
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  • Though, it is a fact that the rainforest is home to 40-75 percent of the total organisms worldwide, many animal species are listed in the IUCN Red List.
  • Golden Lion Tamarind Monkey: Golden Lion Tamarind Monkey (scientific name Leontopithecus rosalia) is found in the lowland coastal region of the state of Rio de Janeiro (Brazil). It is included in the endangered species list as the extent of its occurrence is less than 5,000 km². The reason for its population decline is humans hunting for its magnificent fur.
    • Woo Hyun C
      Woo Hyun C on 08 Oct 09
       
      this is one of the endangered species
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