Download 2.7.2c Biomes

2.7.2C BIOMES
Infer the relationship between environmental
conditions and plants
WARM-UP:
What are the three regions of NC?
How do abiotic factors affect biotic factors
of an ecosystem? (Give an example)
BIOMES
• Write definition of biome at the top of
your paper.
• Definition: Biome
• A complex of terrestrial communities that
covers a large area and is characterized
by certain soil and climate conditions and
particular groups of plants and animal
• Can all kinds of organisms live in every
biome?
No!
Examples
• Examples: Write on back of paper.
• Kangaroo rat- a desert rodent with adaptation in their
kidney to help conserve water
• Rain forest plants- contain long, thin leaves with drip trips
to help shed excess water
Write at bottom of paper.
• Adaptations in plants and animals help different species
survive under different conditions in different biomes
• Plants and animals also exhibit variations in tolerance, or
ability to survive and reproduce under conditions that
differ from their optimal conditions
• Tolerance
• Plants and animals in Arizona for example, can tolerate
temperatures that range from very very hot to below
freezing
• Rain forest plants and animals will die if the temperature
drops below freezing or rises above 34 degrees Celsius
Major Biomes
• Create bubble map with major biomes.
• Tropical rain forest, tropical dry forest, tropical
savanna, desert, temperate grassland,
temperate woodland and shrubland, temperate
forest, northwestern coniferous forest, boreal
forest, and tundra
• Write in main bubble under “Major Biomes”:
Each biome is defined by a unique set of abiotic
(nonliving) factors- particularly climate- and
characteristic plants and animals
Tropical Rainforest
• Has more rain than all other biomes combined
• Hot and wet year round
• Species: ferns, woody vines, orchids, sloths, tapirs,
jaguars, anteaters, monkeys, parakeets, piranhas,
anacondas
Tropical Dry Rainforest
• Rainfall is seasonal rather than year round
• Generally warm year-round, alternating wet and dry
seasons
• Species: tall deciduous (leaves fall off) trees, dense
canopy, tigers, monkeys, elephants, termites, snakes,
monitor lizards
Tropical Savanna
• Also called Grassland
• Spotted with isolated trees, small groves of trees, and
shrubs
• Frequent fires, large animals
• Species: tall grasses, shrubs, lions, leopards, cheetahs,
hyenas, elephants, giraffes, antelopes, zebras, baboons,
ostriches
Desert
• Dry-annual precipitation of less than 25cm
• Organisms can tolerate extreme conditions
• Extreme temperature changes during the course of a day (very
hot during the day and very cold at night)
• Species: cacti, mountain lions, gray foxes, mule deer,
kangaroo rats, roadrunners, owls, hawks, tortoises,
rattlesnakes, lizards
 Temperate Grassland
• Rich mix of grasses, plains and prairies
• Periodic fires and heavy grazing by large herbivores
• Warm to hot summers, cold winters, fertile soils
• Species: coyotes, badgers, wolves, grizzly bears,
rabbits, prairie dogs, cattle, owls, snakes,
grasshoppers
Temperate Woodland and Shrubland
• Semi-dry climate and a mix of
shrub communities
and open woodlands
• Large areas of grasses and wildflowers and a lot of oak
trees
• Fires are a constant threat
• Species: evergreen shrubs, coyotes, deer, rabbit,
squirrels, hawks, lizards, snakes, butterflies, bobcats
Temperate Forest
• Mixture of deciduous and coniferous trees
• Deciduous trees lose their leaves in fall, cold winters
• Species: deer, black bears, bobcats, conifers, flowering
shrubs, herbs, mosses, ferns, raccoons, skunks,
songbirds, turkeys, squirrels
Northwestern Coniferous Forest
• Mild temperature, moist air from the Pacific
Ocean
provides abundant rainfall
• Conifers, moss and flowering trees and shrubs are
abundant
• Species: fir, spruce, hemlock, and redwood trees, bears,
elk, deer, owls, bobcats, weasels
Boreal Forest
• Dense evergreen forests of coniferous trees-also called
taiga
• Bitterly cold winters, mild summers, high humidity
• Mostly in the Northern Hemisphere
• Species: lynxes, wolves, weasels, moose, beavers,
migratory birds
 Tundra
 Characterized by permafrost-a layer of permanently
frozen subsoil
 Short, cool summers, small and crushed/short
plants due to cycles of thawing and freezing
 Cold temperatures, high winds, short growing
season
 Species: mosses, lichens, short grasses, shore
birds, musk ox, arctic foxes, caribous, small rodents
(can withstand harsh conditions)
• If you finish begin chapter 4 questions in the book 1-12.
Write in complete sentences.