World Biomes

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World Biomes

• There are 7 world biomes
• Try to name as many as you can.
• Write down 2 characteristics of the biome as
  well.
• HINT 1. Tropical Rainforest
• Characteristics.

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World Biomes

• What are they?

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1. Tropical Rainforest
Facts 1. Lots of rain (80-180 in. year) 2. High
constant temp 3. Most biodiversity 4. Low
nutrient soil
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2. Savanna
Facts 1. Low rain fall (35-60 in. year) 2. More
temp changes than rainforest
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3. Temperate Grassland
Facts 1. Nutrient rich soils 2. Seasonal temps 3.
Low rain fall
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4. Temperate Forests
Temperate Pine Forest
Temperate Rainforest
Temperate Deciduous Forest
Green on Map Deciduous Forest

• Facts (Deciduous)
• More rain than
• grassland (30-100 in. year)
• 2. Seasonal temps
• 3. Water unavailable in winter

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5. Desert

• Facts
• Extremely low
• Rainfall (less than 10
• In. year)
• 2. Large daily temp
• fluctuations

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6. Taiga

• Facts
• 1. Cold and wet

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7. Tundra

• Facts
• Cold
• Low rain fall and
• mostly frozen (less
• than 10 in. year)

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(Ecology Cont.)Populations

• What is a population?
• The amount of individuals of one species.
• Species have different strategies to reproduce
  and survive
• 2 types r and k adapted

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LIFE STRATEGY

• r STRATEGY
• USUALLY SMALL ORGAINSMS
• SHORT LIFE SPAN HIGH DEATH RATE
• MANY FAST MATURING OFFSPRING
• LITTLE/NO CARE OF OFFSPRING
• EARLY IN LIFE REPRODUCTIVE ABILITY

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STRATEGY CONTINUED

• K STRATEGY
• LARGER ORGANISMS
• LONGER LIFE SPAN LOW DEATH RATE
• FEW, SLOW MATURING OFFSPRING
• EXTENSIVE PARENTAL CARE
• LATE IN LIFE REPRODUCTIVE ABILITY

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What is a food web?

• Shows all predation interactions between species
  in an ecosystem.

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Population Growth

• How populations can grow.
• Two types- Exponential and Logistic

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Exponential Growth
Starts small, but grows to a large amount
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-S shaped -Reaches a carrying capacity
Logistic Growth
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Carrying capacity
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Human Population Growth
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Carrying Capacity?
Currently population is exponential Hopefully
will become logistical (S shaped)