SEPTEMBER 24,2013 For your warm-up today, you will answer questions regarding your Yoo Hoo Caribou graph on the back of your graph!! Return the question sheet when you turn in your graph. Short and Long Term Environmental Changes TEST on FRIDAY

LONG TERM & SHORT TERM ENVIRONMENTAL CHANGES

SHORT-TERM ENVIRONMENTAL CHANGE Environmental change that occurs quickly and affects organisms immediately

SEASONS, differences in day and night Snails and birds know its time to lay eggs when days start getting longer. Warmer temperatures, rain and longer days helps plants begin growing in spring.

TIDES

FLOODS Soil already there so secondary succession to rebuild

HURRICANES W hat kind of succession? Why?

FIRE What kind of succession? Why?

DROUGHT What kind of succession? Why?

PESTICIDES

LONG – TERM ENVIRONMENTAL CHANGE Environmental change that occurs slowly over time and affects organisms over generations.

VOLCANIC ERUPTION What kind of succession? No soil so Primary Succession with a Pioneer Species to break down rock into soil. Lichens

OIL SPILL

NUCLEAR MELTDOWN

CLIMATE CHANGE

MOVEMENT OF PLATES

PESTICIDES

TSUNAMI

Short Term Long Term Ex: Climate Change . Long Term Ex: Climate Change Adapt or Extinction Adaptation results in genetic mutations Short Term Ex: Flood, Toxic Spill, Fire, Mudslide No time to Adapt Move or Die (extinct) Very often the consequences for environmental change are not as drastic as extinction. Populations may be reduced in number, but rather than die out, they become endangered or threatened.

NATURAL SELECTION