Biomes

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Biomes

• Life zones, environments with similar climatic,
  topographic and soil conditions and roughly
  comparable biological communities
• Most are identified by the dominant plants of the
  community

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Climates and Biomes

• Climate has a great effect on the location of
  biomes
• Local landforms also influence distribution of
  biomes. Ex Mountains, Oceans, Lakes
• Temperature and precipitation are among the most
  important determinants in biome distribution

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Biodiversity

• The variety of living things
• Three Kinds
• Genetic Diversity
• Species Diversity
• Ecological Diversity

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Linnaean Classification

• Kingdom Animalia
• Phylum Cordata
• Class Mammalia
• Order Primates
• Family Hominidae
• Genus Homo
• Species Homo sapiens

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Benefits of Biodiversity

• Food
• As many as 80,000 edible plants
• Drugs and Medicine
• 75-150 Billion/year
• Ecological Benefits
• Soil formation, waste disposal, air and water
  purification, solar absorption and food
• Controls disease

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Aesthetic and Cultural Benefits
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Extinction

• Extinction elimination of a species
• Normal rate 1/decade
• Currently 100,000/decade
• Extirpation Ecological Extinction
• Between 1/3 to 2/3 of all species could be
  extinct by the middle of the 21st century

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Threats to Biodiversity

• Habitat Alteration 1 Cause
• Fragmentation Habitat into smaller patches
• Invasive Species
• Pollution
• Commercial Products and live specimens
• Overexploitation
• Hunting, capturing,

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Fragmentation
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National Parks
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Protecting Biodiversity

• Hunting and Fishing Laws
• Endangered Species Act (ESA)
• Endangeredimminent danger of extinction
• Threatenedlikely to become endangered
• Reintroductions
• Recovery Plans