Terrestrial Biomes (1.2)
Terrestrial biomes are large geographic areas defined by specific climate conditions
(average annual temperature and precipitation) and the characteristic vegetation adapted
to these environments. Each biome hosts a community of plants and animals with unique
adaptations that enable survival in that biome's particular climate.
Climate Zones & Temperature Patterns
1. Hot + Wet
○ Example Biome: Tropical Rainforest
○ Precipitation Pattern: High rainfall throughout the year, supporting dense,
diverse vegetation.
2. Hot + Dry
○ Example Biome: Desert
○ Precipitation Pattern: Low rainfall, leading to sparse vegetation adapted to
conserve water.
3. Cold + Icy
○ Example Biomes: Tundra, Taiga
○ Temperature Pattern: Long, harsh winters with short growing seasons and
limited vegetation.
Latitude & Biome Distribution
● High Latitudes (60° and above): Tundra and Boreal Forests
● Mid-Latitudes (30° - 60°): Temperate Forests, Grasslands
● Equatorial Regions: Tropical Rainforests and Deserts
Types of Terrestrial Biomes
1. Tundra
○ Climate: Cold, treeless, with a very short growing season.
○ Key Feature: Permafrost—an impermeable, permanently frozen layer of
soil—limits root growth and supports low-growing vegetation like mosses,
lichens, and small shrubs.
○ Wildlife Adaptations: Animals such as caribou and Arctic foxes have thick
insulation and migratory behaviors to survive the extreme cold.
○ Examples: Canada, Alaska, and regions of Antarctica.
, 2. Boreal Forest (Taiga)
○ Climate: Cold winters and mild summers with moderate rainfall.
○ Vegetation: Dominated by coniferous (cone-bearing) evergreen trees like
pine, spruce, and fir, adapted to conserve water and shed snow.
○ Wildlife Adaptations: Animals like moose, wolves, and lynxes have thick fur
and behaviors that allow them to thrive in colder conditions.
○ Location: Found between 50°N and 60°N in Europe, Russia, and North
America.
3. Temperate Rainforest
○ Climate: Mild temperatures with high precipitation year-round, often due to
coastal proximity.
○ Vegetation: Lush, dense forests with evergreen and deciduous trees, ferns,
and mosses. The moist conditions support large tree growth and diverse
understory plants.
○ Examples: East coast of Australia, Southern Chile, Pacific Northwest of North
America.
4. Temperate Seasonal Forest
○ Climate: Warm summers and cold winters, with around 1 meter (39 inches)
of precipitation annually.
○ Vegetation: Broadleaf deciduous trees like oaks, maples, and beeches
dominate, shedding leaves in winter to conserve water.
○ Wildlife Adaptations: Squirrels, deer, and birds are common, adapting to
seasonal changes with behaviors like food caching and migration.
○ Examples: Eastern United States, Europe, Japan, China, Chile.
5. Woodland/Shrubland (Chaparral)
○ Climate: Hot, dry summers and mild, rainy winters.
○ Vegetation: Shrubs and small trees with drought-resistant adaptations, such
as leathery leaves to minimize water loss.
○ Wildfire Adaptations: Many plants are fire-resistant or have seeds that
germinate only after fire.
○ Examples: Mediterranean Basin, Southern California, Southern South
America.
6. Temperate Grassland / Cold Desert
○ Climate: Cold, harsh winters and hot, dry summers.
○ Vegetation: Grasses are dominant, with few trees due to low rainfall; shrubs
appear in drier regions.
○ Wildlife Adaptations: Animals like bison and prairie dogs are adapted for
grazing and burrowing to escape temperature extremes.
○ Examples: Great Plains of North America, Pampas of Argentina, Steppes of
Eurasia.
Terrestrial biomes are large geographic areas defined by specific climate conditions
(average annual temperature and precipitation) and the characteristic vegetation adapted
to these environments. Each biome hosts a community of plants and animals with unique
adaptations that enable survival in that biome's particular climate.
Climate Zones & Temperature Patterns
1. Hot + Wet
○ Example Biome: Tropical Rainforest
○ Precipitation Pattern: High rainfall throughout the year, supporting dense,
diverse vegetation.
2. Hot + Dry
○ Example Biome: Desert
○ Precipitation Pattern: Low rainfall, leading to sparse vegetation adapted to
conserve water.
3. Cold + Icy
○ Example Biomes: Tundra, Taiga
○ Temperature Pattern: Long, harsh winters with short growing seasons and
limited vegetation.
Latitude & Biome Distribution
● High Latitudes (60° and above): Tundra and Boreal Forests
● Mid-Latitudes (30° - 60°): Temperate Forests, Grasslands
● Equatorial Regions: Tropical Rainforests and Deserts
Types of Terrestrial Biomes
1. Tundra
○ Climate: Cold, treeless, with a very short growing season.
○ Key Feature: Permafrost—an impermeable, permanently frozen layer of
soil—limits root growth and supports low-growing vegetation like mosses,
lichens, and small shrubs.
○ Wildlife Adaptations: Animals such as caribou and Arctic foxes have thick
insulation and migratory behaviors to survive the extreme cold.
○ Examples: Canada, Alaska, and regions of Antarctica.
, 2. Boreal Forest (Taiga)
○ Climate: Cold winters and mild summers with moderate rainfall.
○ Vegetation: Dominated by coniferous (cone-bearing) evergreen trees like
pine, spruce, and fir, adapted to conserve water and shed snow.
○ Wildlife Adaptations: Animals like moose, wolves, and lynxes have thick fur
and behaviors that allow them to thrive in colder conditions.
○ Location: Found between 50°N and 60°N in Europe, Russia, and North
America.
3. Temperate Rainforest
○ Climate: Mild temperatures with high precipitation year-round, often due to
coastal proximity.
○ Vegetation: Lush, dense forests with evergreen and deciduous trees, ferns,
and mosses. The moist conditions support large tree growth and diverse
understory plants.
○ Examples: East coast of Australia, Southern Chile, Pacific Northwest of North
America.
4. Temperate Seasonal Forest
○ Climate: Warm summers and cold winters, with around 1 meter (39 inches)
of precipitation annually.
○ Vegetation: Broadleaf deciduous trees like oaks, maples, and beeches
dominate, shedding leaves in winter to conserve water.
○ Wildlife Adaptations: Squirrels, deer, and birds are common, adapting to
seasonal changes with behaviors like food caching and migration.
○ Examples: Eastern United States, Europe, Japan, China, Chile.
5. Woodland/Shrubland (Chaparral)
○ Climate: Hot, dry summers and mild, rainy winters.
○ Vegetation: Shrubs and small trees with drought-resistant adaptations, such
as leathery leaves to minimize water loss.
○ Wildfire Adaptations: Many plants are fire-resistant or have seeds that
germinate only after fire.
○ Examples: Mediterranean Basin, Southern California, Southern South
America.
6. Temperate Grassland / Cold Desert
○ Climate: Cold, harsh winters and hot, dry summers.
○ Vegetation: Grasses are dominant, with few trees due to low rainfall; shrubs
appear in drier regions.
○ Wildlife Adaptations: Animals like bison and prairie dogs are adapted for
grazing and burrowing to escape temperature extremes.
○ Examples: Great Plains of North America, Pampas of Argentina, Steppes of
Eurasia.
