Aim swbat identify the three types of survivorship curves
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Aim: SWBAT identify the three types of survivorship curves. Please Do Now: EITHER finish that question on the back of the reading from yesterday OR 1) What has to be true for a population to grow exponentially? 2) What is carrying capacity?. Agenda. Do Now Lions vs. Buffalo

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Aim swbat identify the three types of survivorship curves

Aim: SWBAT identify the three types of survivorship curves

Please Do Now: EITHER finish that question on the back of the reading from yesterday OR

1) What has to be true for a population to grow exponentially?

2) What is carrying capacity?


Agenda
Agenda

Do Now

Lions vs. Buffalo

Survivorship curve

Deer population graphing


How are different life histories represented graphically
How are different life histories represented graphically?

  • With survivorship curves

    • Graph time vs. proportion surviving

    • Three general types of curves

    • Type 1: high survival early in life, then big drop

    • Type 2: steady rate of deaths throughout life

    • Type 3: high mortality early, few individuals live a long time


How do survivorship curves relate to r k select species
How do survivorship curves relate to r/K select species?

  • Type 1 roughly equals K select species

  • Type 3 roughly equals r select species