Major biomes of the world

1
Major biomes of the world
2
Rainfall and temperature determine the
distribution of biomes
3
Tundra
Caribou are distinctive animals of the tundra
4
Taiga
Coniferous forest
Wolves are important mammals of the taiga
5
Temperate deciduous forest
Conn. in early autumn
6
Tropical rain forest
Costa Rica (bromeliads)
Queensland, Australia
7
Grassland in Tanzania
Black rhinos
8
Deserts
Utah
Arizona
Australia (toad)
9
Similarity between latitudinal and altitudinal
life zones (North America)
Altitudinal gradient
Latitudinal gradient
10
Alpine meadow in the Sierra Nevada of California
Most of the meadow is above the timberline. The
upper limit of tree growth in mountainous
regions is determined largely by exposure to
temperature and winter winds.
11
A classification of oceanic ecosystems
12
Distribution of present-day coral reefs
The intensity of solar radiation, which is
greatest in the equatorial latitudes, is a major
factor controlling the distribution of
present-day coral communities.
13
Corals
Coral polyps
Leather and alapora corals
Corals have photosynthetic algae, zooxanthellae
14
Origin of the modern distribution of continents
through continental drift
15
Distribution of tropical and subtropical forests
today and during the Eocene, shown on a modern
map
Warm conditions extended much farther north and
south during the Eocene (about 50 million years
ago).
16
Distribution of glaciation during the most
recent Pleistocene ice age, 20,000-15,000 years
ago
17
Kangaroos in Australia are ecological
equivalents of ungulate grazers
18
Biogeographic regions of the world