Amazon Rainforest - PowerPoint PPT Presentation


PPT – Amazon Rainforest PowerPoint presentation | free to view - id: 6352c-MTlhN


The Adobe Flash plugin is needed to view this content

Get the plugin now

View by Category
About This Presentation

Amazon Rainforest


The Amazon has over 1,100 tributaries, some 1,000 miles long. ... Also contains saltwater species- dolphins, stingrays, and sponges. ... – PowerPoint PPT presentation

Number of Views:13899
Avg rating:3.0/5.0
Slides: 14
Provided by: www2Corva


Write a Comment
User Comments (0)
Transcript and Presenter's Notes

Title: Amazon Rainforest

Amazon Rainforest
  • By
  • Kelsey Cooper Melissa Meier

Where is the Rainforest?
Amazon Rainforest
Emergent Layer
Forest floor
Layers of the Rainforest
  • Emergent Layer- Highest level of the Rainforest
  • Brightest layer receiving the most sunlight
  • Worlds finest Natural Aviary
  • Home to nearly 1/3 of the planets bird species
    including hummingbirds and eagles. Bats, monkeys,
    and butterflies also seek food, shelter, and
    protection from predators.
  • Canopy Layer- directly beneath the Emergent Layer
  • Consists of a thick branching system with vines
    and limbs creating a natural umbrella
  • Absorbs ultra-violet rays from the sun protecting
    the plant and animal species beneath.
  • Many Epiphytic Plants like Orchids and
    Bromeliads, grow here.
  • Home to many animal species- butterflies, tree
    frogs, sloth, jaguars, toucans, parrots, and

Layers of the Rainforest
  • Understory Layer- directly beneath Canopy Layer
  • Growth- very dense, entwined with vines, shrubs,
    and broadleaf trees.
  • Provides camouflage for species who cross over
    with Canopy Layer.
  • The leaves of trees, avg. height of 12 ft,
    compensate for lack of sunlight.
  • Bats, owls, tree frogs, and a wide variety of
    insects live here.
  • Forest Floor- ground layer
  • Very dark, almost no sunlight reaches layer.
  • Quality of soil is very poor and few plants grow
  • Rich in microorganisms as well as snakes such as
    Anaconda, lizards, beetles, Giant Anteaters, and

  • Lie in the intertropical convergence zone
  • The rainforest receives constant sunlight 12 hrs.
    a day 365 days per year.
  • Due to the constant solar energy the temperature
    is warm year round, usually 72-93 F.
  • Rainforests are subject to heavy rainfall, 80
    inches and in some areas 430 inches per year.
  • Equatorial regions may not have differentiated
    wet and dry seasons.
  • Seasonal forests may slightly differentiate with
    seasons. Even during the dry season the clouds
    sustain the air moisture to prevent the plants
    from drying out.
  • Creates intense humidity. Each canopy tree
    transpiring roughly 200 galloons per year.
  • The constant rainfall results in evergreen
    forests- keeping their leaves year round.

Plant Life
  • 30 of the planets species live in the
  • 40 of Earth's oxygen is produced here
  • Within a four mile square area of a tropical
    rainforest, you would find
  • Over 750 species of trees
  • 1500 different kinds of flowering plants

Animal Life
  • The Amazon Rainforest is home to 2.5 million
    insect species and 2000 birds and mammals.
  • Currently there are at least 3,000 fish, 1,294
    birds, 427 mammals, 427 amphibians, and 378
    reptiles species.
  • One in five of all birds in the world live in the
    Amazon rainforest.
  • Macaw- most common, gathers by clay cliffs and
    feeds on minerals to protect themselves from
    toxins in seeds.
  • Frogs are most abundant amphibians in the
  • Live in the trees and lay eggs in vegetation or
    the ground.
  • Colored poison dart arrow frog- best
  • well-known, secrete intense toxins from
  • glands on their backs.

Animal Life
  • The Amazon Basin contains the largest number of
    freshwater fish species in the world.
  • The Amazon has over 1,100 tributaries, some 1,000
    miles long.
  • Tambaqui- fish in the Amazon that are important
    for dispersing seeds.
  • The Pirarucu- one of the world's largest
    freshwater fish reaching up to 16 ft in length.
  • Also contains saltwater species- dolphins,
    stingrays, and sponges.
  • Over 90 of the animal species in Amazon are
  • Scientists estimate 30 of animal biomass of
    Amazon is ants

Endangered Specie
  • Spixs Macaw- Worlds rarest bird.
  • Dark blue head, blue body, green belly, a black
    mask, and yellow eyes.
  • Has always been rare, living in palm groves and
    river edges in Brazil.
  • The specie has dramatically declined due to
    deforestation, the importation of Africanized
    bees (invaded the hollows of trees and killed
    breeding individuals), and over collection of
  • In 1987 only four birds remained in the wild
  • In 2000 the species became extinct in the
  • wild when last individual disappeared in Brazil.
  • Captive population is roughly 68.

Human Impact Deforestation
  • Each day at least 80,000 acres of forest
    disappear, and another 80,000 are degraded
  • As these forests fall, more carbon is added to
    the atmosphere, climactic conditions are further
    altered, and more topsoil is lost to erosion.
  • deforestation rates increased 8.5 from 2000-2005
  • The Cause farming, mining operations, logging,
    some forests are being burned to make charcoal to
    power industrial plants, urban expansion
  • At the current rate of destruction, it is
    estimated that the last remaining rainforests
    could be destroyed in less than 40 years.

WOW! That is interesting….
  • Rainforests have many uses in the medical field
  • One in four pharmaceuticals comes from a plant in
    the tropical rainforests
  • 1,400 rainforest plants are believed to offer
    cures for cancer
  • many of the plants are sources for new drugs for
    AIDS, diabetes, arthritis, and Alzheimer's.
    Quinine, muscle relaxants, steroids, and caner
    drugs have already been discovered.
  • Although 25 of all drugs are derived from
    rainforest ingredients, scientists have tested
    only 1 of tropical plants.

  • http//
  • http//
  • http//
  • http//
  • http//
  • http//
  • http//
  • http//,133