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ANIMAL ADAPTATIONS
Rain Forest
Recall Stratification
Niche Occupation
Two factors create enormous biodiversity in animal species.Stratification Diversity of tree species.
Rain Forest
Conditions vary at each forest level. Different communities evolve to occupy
each habitat.
Birds of Paradise
http://www.youtube.com/watch?v=L54bxmZy_NE&index=2&list=PLE8BC78E23781DCA1
Deciduous Forests
Stratification also exists within deciduous forests, Less tree biodiversity than found in rain
forests.
Forest Floor
Decaying leaves provide a deep, rich layer of soil.
Insects and other invertebrates live in the soil and debris, feeding on abundant organic matter
Deciduous Forests
Winter AdaptationsMigration
○ Many birds fly south to find warmer temperatures and food
Hibernation○ Some mammals reduce their metabolic
activity so that they do not need as much food for energy.
Winter Adaptations in Deciduous Forests
Coniferous Forests Adaptations
HibernationBurrowers Thick body hair
Recall: Snow acts
as an insulator
Coniferous Forests
Some animals thrive in the winter conditions.
Tundra caribou
Body hair traps air that acts as insulator. migrate during the winter in search of food and water
Wolves Take advantage
of caribou
movement patterns prey on burrowers.
○ Lemmings○ mice ○ hares
Camouflage
Deserts
Recall: water is very limited.
Desert Reptiles
Have thick, scaly skin that prevents water loss
Desert Amphibians
Burrow in ground and sleep through the dry season.
Invertebrates
Nocturnal BehaviorActive at night
○ Hunting/feeding at night avoids the daytime heat.
Temperate Grasslands
Steppes Prairies
Adaptations During colder months, some animals
hibernate in search of food and warmer temperatures.
During warmer months, large herbivores are supported by the abundant grasses.
Many smaller animals burrow to avoid fires and extreme temperatures throughout the year.
Prairie Dog Towns
Bison
Tropical GrasslandsAKA Savanna
Animal populations concentrate around streams and watering holes. Recall: streams and watering holes are
sources of water and more vegetation.
vertical feeding patterns: Animals eat vegetation at different heights to
avoid competition for limited resources.
Vertical Feeding Pattern
More Adaptations
Many animals, such as zebras, migrate long distances in search of water.
Predators follow their migration patterns.