look at my information report from last year
2006-08-26 16:28:03
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answer #1
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answered by Marzbar 2
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FAUNA:
Rainforests support a very broad array of fauna including mammals, reptiles, birds and invertebrates. Mammals may include primates, felids and other families. Reptiles include snakes, turtle, chameleons and other families. Birds include such families as vangidae and Cuculidae. Dozens of families of invertebrates are found in rainforests.
FLORA:
Trees
Rainforest on Fatu-Hiva, Marquesas Islands
There are several common characteristics of tropical trees. Tropical species frequently possess one or more of the following attributes not commonly seen in trees of higher latitudes.
Many species have broad, woody flanges (buttresses) at the base of the trunk. Originally believed to help support the tree, now it is believed that the buttresses channel stem flow and its dissolved nutrients to the roots. Large leaves are common among trees of the C layer. Young individuals of trees destined for the B and A layers may also have large leaves. When they reach the canopy new leaves will be smaller. The large leaf surface helps intercept light in the sun-dappled lower strata of the forest. Drip tips facilitate drainage of precipitation off the leaf to promote transpiration. They occur in the lower layers and among the saplings of species of the emergent layer (A layer).
Trees are often well connected in the canopy layer especially by the growth of woody climbers or lianas, plants with epiphytic adaptations, allowing them to grow on top of existing trees in the competition for sunlight.
Other characteristics that are more frequent in tropical tree species than in temperate forests include:
Exceptionally thin bark, often only 1-2 mm thick. It is usually very smooth, although sometimes covered with spines or thorns.
Cauliflory, the development of flowers (and hence fruits) directly from the trunk, rather than at the tips of branches.
Large fleshy fruits attract birds, mammals, and even fish as dispersal agents.
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Rainforest layers
The rainforest is divided into four different parts, each with different plants and animals, adapted for life in that particular area.
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Emergent layer
This layer contains the emergents, a small number of very large trees which grow above the general canopy, reaching heights of 45-55 m, a few species rarely to 60 m or 70 m tall. The trees are often evergreens, but some are deciduous in dry seasons. They need to be able to withstand the harsh temperatures and high winds. Eagles, butterflies, bats and certain monkeys inhabit this layer.
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Canopy layer
The canopy layer contains the majority of the larger 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 40% of all plant species, suggesting that perhaps half of all life on Earth could be found there. 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. As long ago as 1917, U.S. naturalist William Beebe declared that "another continent of life remains to be discovered, not upon the Earth, but one to two hundred feet above it, extending over thousands of square miles".
True exploration of this habitat only began in the 1980s, when scientists developed methods to reach the canopy, such as firing ropes into the trees using crossbows. Exploration of the canopy is still in its infancy, but other methods include the use of balloons and airships to float above the highest branches and the building of cranes and walkways planted on the forest floor. The science of accessing tropical forest canopy is called dendronautics, see Dendronautics
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Understory layer
There is a space between the canopy and the forest floor, which is known as the understorey (or understory). This is home to a number of birds, snakes, and lizards. The leaves are much larger at this level. Insect life is also abundant.
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Forest floor
This region receives only 2% of the rainforest's sunlight. Thus, only specially adapted plants can grow in this region. Away from river banks, swamps and clearings where dense undergrowth is found, the forest floor is relatively clear of vegetation, as little sunlight penetrates to ground level. It also contains decaying plant and animal matter, which disappears quickly due to the warm, humid conditions promoting rapid decay.
A list of references is there mentioned too.
2006-08-26 06:48:11
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answer #2
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answered by · 5
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You can do your own homework. I've provided a link below which will provide you with all the information you could possbly need.
2006-08-26 06:37:29
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answer #3
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answered by Anonymous
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You should try the Amazon rainforest
Twice a year the sea level of water arises and get mixup with all the flora and fauna that exist, all kinds of animals that are living up in trees get a chance to coexist with fish;
Fish go hunting for insects (they jump up to the branches of trees)
Monkeys hunts for fishes (they get inside the water)
Beautiful flowers emerges from the water as the sea levels gets down to its normal flow
There is always humidity, there is always life...
Rain gives life to the forest
All animals can get their share of a meal
Bees, wasps, bats pollinate flowers, vegetarian animals eat those flowers, bigger animals struggle for life and death situations, winner eats, looser dies.
In places like India as soon as the water level gets down; water predators never get out of the water...they wait patiently for small thirsty animals to drink water, as soon as they do they'll be eaten by a hungry bigger predator
Rainforrest exist because of the monzon rainfalls, it gets a lot of concentrated rain in a small space of land for many days
Animals hide under trees, insects get under the earth,
flowers show their colors with pride as they begin to grow and cover vast extensions of land
Most rainforest in Asia and SouthAmerica are still in a virgin state, they haven't been explored by men, only animals make a living there: they all share the same land, hunt for survival
The most exotic birds known to men comes from the rainforest, the feathers are their trademark, some are night-hunters, because as soon as the Sun sets all living things come to play
They use their sight and hearing to hunt, the prey uses their wit and agility to escape.
Most animals live in herds, people live on the land level, insects and arachnids live underground, birds live on trees, fish on the low level waters, predators like to move around on their own territory for hunting.
The Sun rays can't get to the land level because of the bigger trees with their exuberant foliage in where arachnids hunt insects with their webs
You can look for predators even in the insect world where endless armies of ants go and hunt for their rivals for the possesion of the land and trees.
The rainforest is never quiet at daylight, and you think its calm at night; think again, big cats go out hunting, the biggest snakes known in the world are from rainforest(boa, anaconda, python) they will hunt in the highest tree branches and will fly from one branch to another when they jump on trees, they go inside of earthholes for food, they get in the water for fish.
You can look for all kinds of flowers on tree's branches,
the evergreen sight is everywhere, so is mud, they are not much rocks, predators are stalking, and life never seem to cease.
Frogs and toads live on water, they eat insects; snakes eats frogs, big cats eat snakes; animals hunt for survival... and sadly humans hunt for pleasure.
2006-08-26 08:18:28
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answer #4
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answered by spyblitz 7
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try
2006-08-26 11:43:11
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answer #5
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answered by dianed33 5
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