it is all rainforests in the world
This link has been bookmarked by 44 people . It was first bookmarked on 30 Mar 2008, by Donna Thaggard.
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18 Feb 15
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poor penetration of sunlight to ground level.
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08 Dec 14
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Around 40% to 75% of all biotic species are indigenous to the rainforests.[2] It has been estimated that there may be many millions of species of plants, insects and microorganisms still undiscovered in tropical rainforests
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23 May 14
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nd the "world's largest pharmacy", because over one quarter of natural medicines have been discovered there.[3] Rainforests are also responsible
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19 May 14
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06 Mar 14
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05 Mar 14
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23 May 13
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The undergrowth in some areas of a rainforest can be restricted by poor penetration of sunlight to ground level. If the leaf canopy is destroyed or thinned, the ground beneath is soon colonized by a dense, tangled growth of vines, shrubs and small trees, called a jungle[citation needed]. There are two types of rainforest, tropical rainforest and temperate rainforest.
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05 Feb 13
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31 Jan 13
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It has been estimated that there may be many millions of species of plants, insects and microorganisms still undiscovered in tropical rainforests.
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Rainforests are also responsible for 28% of the world's oxygen turnover, sometimes misnamed oxygen production
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A tropical rainforest is typically divided into four main layers, each with different plants and animals adapted for life in that particular area: the emergent, canopy, understorey/understory and forest floor layers.
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More than half of the world's species of plants and animals are found in the rainforest
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l rainfall of 1750–2000 mm (68-78 inches). The monsoon trough, alternatively known as the intertropical convergence zone, plays a significant role in creating the climatic conditions necessary for the Earth's tropical rainforests.
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y be many millions of species of plants, insects and microorganisms still undiscovered in tropical rainforests. Tropical rainforests ha
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The undergrowth in a rainforest is restricted in many areas by the poor penetration of sunlight to ground level. This makes it easy to walk through undisturbed, mature rainforest. If the leaf canopy is dest
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11 Oct 12
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significant role in creating the climatic conditions
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It has been estimated that there may be many millions of species of plants, insects and microorganisms still undiscovered in tropical rainforests. Tropical rainforests have been called the "jewels of the Earth" and the "world's largest pharmacy",
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13 Jul 12
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round 40% to 75% of all biotic species are indigenous to the rainfore
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one quarter of natural medicines have been discovered ther
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Rainforests are also responsible for 28% of the world's oxygen turnov
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10 May 12
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haracterized by high rainfall, with definitions based on a minimum normal annual rainfall of 1750-2000 mm (68-78 inches). The monsoon trough, alternatively known as the intertropical convergence zone, plays a significant role in creating the climatic conditions necessary for the Earth's tropical rainforests.
Around 40% to 75% of all biotic species are indigenous to the rainforests.[1] It has been estimated that there may be many millions of species of plants, insects and microorganisms still undiscovered in tropical rainforest
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areas by the poor penetration of sunlight to ground level. This makes it easy to walk through undisturbed, mature rainforest. If the leaf canopy is destroyed or thinned, the ground beneath is soon colonized by a dense, tangled growth of vines, shrubs and small trees, called a jungle. There are two types of rainforest, tropical rainforest and temperate rainforest.
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05 Apr 12
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01 Dec 11
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23 Sep 11
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Many rainforest species are rapidly disappearing due to deforestation, habitat loss and pollution of the atmosphere.[11]
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Most trees have roots near the surface, because there are insufficient nutrients below the surface; most of the trees' minerals come from the top layer of decomposing leaves and animals.
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Five million years from now, the Amazon rainforest may long since have dried and transformed itself into savannah, killing itself in the progress (changes such as this may happen even if all human deforestation activity ceases overnight).[17] The descendants of our known animals may adapt to the dry savannah of the former Amazonian rainforest and thrive in the new, warmer temperatures.[17]
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Mika bA nice place to get information about the rainforest but it might not be ideal to use only this website.
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Around 40% to 75% of all biotic species are indigenous to the rainforests.[1] It has been estimated that there may be many millions of species of plants, insects and microorganisms still undiscovered in tropical rainforests. Tropical rainforests have been called the "jewels of the Earth" and the "world's largest pharmacy", because over one quarter of natural medicines have been discovered there.[2] Rainforests are also responsible for 28% of the world's oxygen turnover, sometimes misnamed oxygen production,[3] processing it through photosynthesis from carbon dioxide and consuming it through respiration.
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A tropical rainforest is typically divided into four main layers, each with different plants and animals adapted for life in that particular area: the emergent, canopy, understorey and forest floor layers.
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The canopy layer contains the majority of the largest trees, typically 30–45 m tall. The densest areas of biodiversity are found in the forest canopy, a more or less continuous cover of foliage formed by adjacent treetops.
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The forest floor, the bottom-most layer, receives only 2% of the sunlight. Only plants adapted to low light can grow in this region.
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A natural rainforest emits and absorbs vast quantities of carbon dioxide. On a global scale, long-term fluxes are approximately in balance, so that an undisturbed rainforest would have a small net impact on atmospheric carbon dioxide levels,[12] though they may have other climatic effects (on cloud formation, for example, by recycling water vapour). No rainforest today can be considered to be undisturbed.[13] Human induced deforestation plays a significant role in causing rainforests to release carbon dioxide,[14] as do other factors, whether human-induced or natural, which result in tree death, such as burning and drought.
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15 Mar 11
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Emergent layer
The emergent layer contains a small number of very large trees called emergents, which grow above the general canopy, reaching heights of 45–55 m, although on occasion a few species will grow to 70–80 m tall.[7][8] They need to be able to withstand the hot temperatures and strong winds that occur above the canopy in some areas. Eagles, butterflies, bats and certain monkeys inhabit this layer.
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Canopy layer
Main article: Canopy (ecology)The canopy layer contains the majority of the largest trees, typically 30–45 m tall. The densest areas of biodiversity are found in the forest canopy, a more or less continuous cover of foliage formed by adjacent treetops. The canopy, by some estimates, is home to 50 percent of all plant species, suggesting that perhaps half of all life on Earth could be found there. Epiphytic plants attach to trunks and branches, and obtain water and minerals from rain and debris that collects on the supporting plants. The fauna is similar to that found in the emergent layer, but more diverse. A quarter of all insect species are believed to exist in the rainforest canopy.
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08 Oct 10
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09 Sep 10
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large numbers of species are being driven to extinction (possibly more than 50,000 a year
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08 Sep 10
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The canopy layer contains the majority of the largest trees, typically 30–45 m tall. The densest areas of biodiversity are found in the forest canopy, a more or less continuous cover of foliage formed by adjacent treetops. The canopy, by some estimates, is home to 50 percent of all plant species, suggesting that perhaps half of all life on Earth could be found there. Epiphytic plants attach to trunks and branches, and obtain water and minerals from rain and debris that collects on the supporting plants. The fauna is similar to that found in the emergent layer, but more diverse. A quarter of all insect species are believed to exist in the rainforest canopy. Scientists have long suspected the richness of the canopy as a habitat, but have only recently developed practical methods of exploring it
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26 Aug 10
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Rainforests are forests characterized by high rainfall, with definitions setting minimum normal annual rainfall between 1750–2000 mm (68-78 inches). The monsoon trough, alternately known as the intertropical convergence zone, plays a significant role in creating Earth's tropical rain forests.
A total of 40 to 75% of all species on the world's habitats are indigenous to the rainforests.[1] It has been estimated that many millions of species of plants, insects, and microorganisms are still undiscovered. Tropical rainforests have been called the "jewels of the Earth", and the "world's largest pharmacy", because over one quarter of natural medicines have been discovered there.[2] Rainforests are also responsible for 28% of the world's oxygen turn over, often misunderstood as oxygen production,[3] processing it through photosynthesis from carbon dioxide and storing it as carbon through biosequestration.
The undergrowth in a rainforest is restricted in many areas by the lack of sunlight at ground level. This makes it possible to walk through the forest. If the leaf canopy is destroyed or thinned, the ground beneath is soon colonized by a dense, tangled growth of vines, shrubs, and small trees called a jungle. There are two types of rainforest, tropical rainforest and temperate rainforest.
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13 Jul 10
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02 Jun 10
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14 Apr 10
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18 Feb 10
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ften misunderstood as oxygen production
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12 Feb 10
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02 Dec 09
Shaun CaseRainforests are forests characterized by high rainfall, with definitions setting minimum normal annual rainfall between 1750–2000 mm (68-78 inches). The monsoon trough, alternately known as the intertropical convergence zone, plays a significant role in c
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03 Nov 09
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19 Oct 09
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16 Oct 09
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rainfall between 1750–2000 mm
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(68-78 inches)
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estimated that many millions of species of plants, insects,
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and microorganisms are still undiscovered
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Tropical rainforests have been called the "jewels of the Earth"
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28% of the worlds oxygen
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12 Oct 09
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millions of species of plants, insects, and microorganisms are still undiscovered.
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world's largest pharmacy
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jewels of the Earth
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responsible for 28% of the worlds oxygen
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Part of the Illawarra Brush, in New South Wales, Australia.
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General distribution of tropical rainforest
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tropical rainforest is typically divided into four main layers, each with different plants and animals adapted for life in that particular area: the emergent, canopy, understory, and forest floor layers.
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heights of 45–55 m
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emergent layer contains a small number of very large trees
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few species will grow to 70–80 m tall
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05 Oct 09
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11 Sep 09
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10 Sep 09
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Add Sticky Note
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they all have a calid weather
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Rainforests are forests characterized by high rainfall
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We have to take care of rainforests
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the biggest rainforest is the amazon
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Temperate rainforests are rainforests in temperate regions. They can be found in North America (in the Pacific Northwest, the British Columbia Coast, and in the inland rainforest of the Rocky Mountain Trench east of Prince George), in Europe (parts of the British Isles such as the coastal areas of Ireland, Scotland, southern Norway, parts of the western Balkans along the Adriatic coast, as well as in the North West of Spain and coastal areas of the eastern Black Sea, including Georgia and coastal Turkey), in East Asia (in southern China, Taiwan, much of Japan and Korea, and on Sakhalin Island and the adjacent Russian Far East coast), in South America (southern Chile) and also Australia and New Zealand.
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From 40 to 75% of all species on Earth are indigenous to the rainforests.[1] It has been estimated that many millions of species of plants, insects, and microorganisms are still undiscovered. Tropical rainforests have been called the "jewels of the Earth", and the "world's largest pharmacy", because of the large number of natural medicines discovered there.[2] Rainforests are also responsible for 28% of the worlds oxygen turn over, often misunderstood as oxygen production,[3] processing it through photosynthesis from carbon dioxide and through breathing to carbon dioxide.
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On January 18, 2007, FUNAI reported that it had confirmed the presence of 67 different uncontacted tribes in Brazil, up from 40 in 2005. With this addition, Brazil has now overtaken the island of New Guinea as the country having the largest number of uncontacted tribes.[19] The province of Irian Jaya or West Papua in the island of New Guinea is home to an estimated 44 uncontacted tribal groups.[20]
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30 Mar 08
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Rainforests are home to two thirds of all the living animal and plant species on the planet. It has been estimated that many hundreds of millions of new species of plants, insects and microorganisms are still undiscovered. Tropical rain forests are called the "jewels of the earth", and the "world's largest pharmacy" because of the large number of natural medicines discovered there. Tropical rain forests are also often called the "Earth's lungs", however there is no scientific basis for such a claim as tropical rainforests are known to be essentially oxygen neutral, with little or no net oxygen production.[1][2]
The undergrowth in a rainforest is restricted in many areas by the lack of sunlight at ground level. This makes it possible for people and other animals to walk through the forest. If the leaf canopy is destroyed or thinned for any reason, the ground beneath is soon colonized by a dense tangled growth of vines, shrubs and small trees called a jungle.
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Public Stiky Notes
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