4.4 - benton7and8science

Regional climates: For example~ a state or country with a ocean borderign it is involved in a cold ocean current that flows north to south, which makes summers cooler.

4.4 BIOMES Moist air will travel and expand to make clouds. Rain or snow will drop from the clouds to change the weather pattern

BIOMES • Groups of regional climate communities described in terms of the abiotic factors like: • Climate • Soil type • And biotic factors like: • Plants • Animals

CHARACTERIZED BY • The adaptations that allow them to survive and reproduce.

TROPICAL RAIN FOREST A tropical rain forest is home to more species than any other biome As you would probably guess from name they do get a lot of rain At least 2 meters a year

CANOPY Dense layer formed by tall leafy trees clustered together everywhere Range from 50 to 80 meters tall above forest floor

UNDERSTORY Smaller trees and vines under the canopy form this layer

2 ABIOTIC FACTORS AND 2 BIOTIC FACTORS 2 abiotic would be that its hot and wet year round and there is nutrient poor soil 2 biotic factors are the plant and animal life

4.4 Biomes (Tropical Dry Forests)

Tropical dry foresT’s • Tropical dry forests grow in areas with rainy seasons alternate with dry seasons. In some cases after a period of rain is instantly followed by prolonged periods of drought.

Abiotic factors Tropical dry forests are warm all year round, and have rich soils that are subject to erosion.

Biotic Factors Plant Life: plants have adapted to survive the dry seasons by loss of leaves. Plant Life: Some plants also have an extra thick waxy layer over their leaves to lower water loss and to store water in their tissue.

Biotic factors (Continued) • Animal Life: to survive the dry seasons animals can reduce their needs for water by entering long periods of inactivity called estivation. Other animals including many birds and primates move to the areas where water is available for them during a dry season.

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What is a plant that sheds its leaves during a specific season? What are the two biotic factors of tropical dry forests?

ANSWER 1: DECIDUOUS ANSWER 2: PLANT LIFE, ANIMAL LIFE

4.4 Biomes Kirsten Barnes

Tropical Grassland/ Savanna • • • •

More rainfall than deserts but less than tropical dry forests Grassy area usually with trees and shrubs Frequent fires Action of larger animals sometimes prevents area from turning dry • IE: rhinoceroses and elephants

Abiotic and Biotic Factors • Abiotic • Seasonal rainfall • Fires set by lightning

• Biotic • Plant life (adaptations) • Animal life (migration)

Desert • Less than 25 centimeters of rain annually • Deserts undergo extreme daily temperature changes • 100⁰ F during the day to under 30⁰ F at night

Abiotic and Biotic Factors • Abiotic • Low rainfall • Soil rich in minerals but low in organic material

• Biotic • Plant life (cacti) • Animal life (avoid heat, get water)

Section 4.4 #’s 57-60

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Grasslands are areas where the vegetation is dominated by grasses. Temperatures don’t get too hot or too cold

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Abiotic factors- non-living tings that shape an ecosystem. ◦ Examples- warm to hot summers; cold winters; moderate sea soil precipitation, fertile soils; occasional fires.

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Biotic factors- living things that shape an ecosystem. Examples- grasses and birds.

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Abiotic factors- non-living things that shape an ecosystem. ◦ Examples- hot bry summers; cool moist winters; thin, nutrient- poor soils; periodic fires.

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Biotic factors- living things that shape an ecosystem. Examples- plants and white-tailed deer.

4.4 Temperature forests Clayton welch

Conifers 

Conifers produce seed bearing cones.  They have leaves shaped like needles.  Waxy substance reduces water loss. Soils are rich in humus, formed from decaying leaves and other organic matter.

Abiotic factors 

Cold to moderate winters.  Warm summers  Year round precipitation  Fertile soils

Biotic factors Plant life- Deciduous trees. Animal life- Animals cope with changing weather others migrate to warmer climates. Animals that do not migrate may use camouflage to escape predators in the winter when bare trees leave them exposed

FIN

By: Derrick Branas 

Jaylin Clossen

ABIOTIC

BIOTIC

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Long cold winters

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High humidity

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Plants: conical shape sheds Animal: migrate to warmer area

 Permafrost's

border a tundra and are cold all year round.  Typical animals • Marine animals • Insects • Mites

 Mountain

ranges exist on all continents and in many biomes. • Conditions vary with elavation • Soil types change • Organisms change