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Chapter 2 Guide Part II

Populations. Chapter 2 Guide Part II . Population Characteristics. Number of Individuals Same Species In an area or place. Community. All the Plants & Animals In a given area ? Community of Del Mar. Forest Community …………. 2.Carrying Capacity versus Unlimited Growth……….

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Chapter 2 Guide Part II

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  1. Populations Chapter 2 Guide Part II

  2. Population Characteristics • Number of Individuals • Same Species • In an area or place

  3. Community • All the Plants & Animals • In a given area • ? Community of Del Mar

  4. Forest Community …………..

  5. 2.Carrying Capacity versus Unlimited Growth………. Carrying Capacity • Limited • Maximum • Decline Unlimited • No maximum • Still growing

  6. Homeostasis = Steady state Births=Deaths No Growth Flat, straight graph Fluctuating = Changing Grows or Declines Homeostasis Fluctuating & Populations

  7. 4.Population Density • Number per? • Unit area= • ? Fish • 5 fish per 10 gallons

  8. Density Dependent Factors:differ with the biome/environment • Amount food • Disease • Competition • Parasites Versus Independent: • Abiotic factors • Habitat disruption

  9. 5.Predator Prey Cycles:page 102 • Prey grows • Predator follows • Prey falls • Predator follows • Etc,

  10. 6. Demography =Study of human populations, age groups Natality = • Births • Increases # Mortality = • Deaths • Decreases #

  11. World Birth & Death Rates

  12. Immigration & Emigration Immigration = • Coming in • Increases # Emigration = • Going out • Decreases #

  13. World Populations are affected only by……... • Natality • Mortality • Aliens would immigrate! • Space Colonies would emigrate

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