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ECOLOGY STANDARD 6C

ECOLOGY STANDARD 6C. FL #6 Populations: THE CAUSES OF FLUCTUATIONS IN POPULATION. A POPULATION INCLUDES ALL THE ORGANISMS OF THE SAME KIND IN AN ECOSYSTEM. THE 4 THINGS THAT AFFECT POPULATION SIZE:. (+) BABIES ARE BORN. BIRTH IMMIGRATION EMIGRATION DEATH. (+) INDIVIDUALS

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ECOLOGY STANDARD 6C

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  1. ECOLOGY STANDARD 6C FL #6 Populations: THE CAUSES OF FLUCTUATIONS IN POPULATION

  2. A POPULATION INCLUDES ALL THE ORGANISMS OF THE SAME KIND IN AN ECOSYSTEM.

  3. THE 4 THINGS THAT AFFECT POPULATION SIZE: (+) BABIES ARE BORN • BIRTH • IMMIGRATION • EMIGRATION • DEATH (+) INDIVIDUALS MOVE IN (-) INDIVIDUALS LEAVE (-) INDIVIDUALS DIE

  4. BIRTH ADD THESE TWINS TO THE HERD AND THE COUNT IS UP BY 2 WITH THIS CUTE LITTLE GUY THE COUNT IS UP BY 1 MORE – A TOTAL OF 3

  5. IMMIGRATION IF THESE 3 JOIN THE HERD – HOW MUCH HAS THE HERD INCREASED TOTALLY? THE HERD IS NOW 6 ELK LARGER

  6. BIRTH AND IMMIGRATION INCREASE A POPULATION 5 ELK + 3 BIRTHS + 3 IMMIGRATIONS = 11 ELK

  7. EMIGRATION THESE ELK ARE LEAVING THE POPULATION IN SEARCH OF GREENER PASTURES 11 – 2 = 9

  8. Did you ever wonder, what happened to Bambi? DEATH THIS ELK IS DEAD 9 - 1= 8

  9. BIRTH AND IMMIGRATION INCREASE THE POPULATION EMIGRATION AND DEATH DECREASE THE POPULATION

  10. A POPULATION IS AFFECTED BY 4 SEPARATE EVENTS. BIRTH AND IMMIGRATION WILL INCREASE THE POPULATION WHILE EMIGRATION AND DEATH WILL DECREASE THE POPULATION.

  11. WHAT 4 EVENTS AFFECT THE SIZE OF A POPULATION? BIRTH IMMIGRATION EMIGRATION DEATH

  12. IN A POPULATION THERE ARE 3 BIRTHS, 2 EMIGRATE, 1 DIES AND NONE IMMIGRATE. THE POPULATION WILL CHANGE BY HOW MUCH? • A. 0 • B. 1 • C. 2 • D. 3

  13. FOR A POPULATION TO REMAIN THE SAME WHAT CONDITIONS MUST OCCUR? • DEATHS MUST EQUAL IMMIGRATIONS AND BIRTH EQUAL EMIGRATIONS • BIRTHS MUST EQUAL IMMIGRATIONS AND DEATHS EQUAL EMIGRATIONS • IMMIGRATIONS MUST EQUAL EMIGRATIONS AND BIRTHS EQUAL DEATHS • BIRTHS MUST BE GREATER THAN DEATHS AND EMIGRATIONS LESS THAN IMMIGRATIONS

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