Pre AP Biology Population Ecology (6.2) Part 1. Population.

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Presentation transcript:

Pre AP Biology Population Ecology (6.2) Part 1

Population

Human Population on Earth

Dispersal Types

Life Table showing cohorts

Survivorship curves

Pre AP Biology Population Ecology (6.2) Part 2

Exponential Growth (Ideal Growth) “J” curve growth

Exponential Growth

Hawaii millions of years ago

Pioneer species begin to colonize (lichens and mosses)

Then over time, grasses begin to grow.

Then over time, shrubs will appear and they will be followed by trees.

Hawaii today

Logistical Growth (Realistic Growth) “S” curve growth

Pre AP Biology Population Ecology (6.2) Part 3

Boom-bust cycles

Snowshoe Hare and Lynx

Human Growth on Earth

Various Country “footprints” Above the line = bad Below the line = good

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