Natural Ecosystem Change

What do ice ages corresponds to?

high dust concentration

Why are the two factors (ice age and etc) relates

The massive desserts of our planet, wind increases and the sediment is trapped in the glacier

What causes changes in the ecosystems?

the climate and where the earth is in relation to the sun

What factors affect the ecosystems?

Volcanism, plate tectonics

What is mass extinction?

where a number of species simply go away

What is followed by mass extintion?

Adaptive radiation

What is adaptive radiation?

where different species come back from mass extinction

What happens as our land is destroyed or changed?

succesion occurs

What is the difference between primary and secondary succession?

Primary, the soil and the community is gone, while, with secondary, the soil and commuinty remains

What causes changes in the sun?

The sun spot cycle changes, the earth starts to wobble ( changing the direction of the pole), changes of the orbit (changing the amount of energy from the sun)

How does Volcanism effect the climate?

it can change the amount of sulfur dioxide in the atmosphere and cool down the planet

What is species movement?

Plants and animals changing their distribution to survive the changing atmosphere if they do not face extinction.

What is succession?

the process of turning bare rock to life (thousands of years to form)