Migration

Question 1

What does the term “Anadromous” mean?

Answer 1

Fish that move from fresh water to salt water and then back again.

Question 2

If fat as an energy storage light or heavy?

Answer 2

Fat is a lighter source of energy storage.

Question 3

What are some external migration cues?

Answer 3

Photoperiod (Longer or shorter days), Shifting seasons (Temp and precipitation levels change), Food and water availability.

Question 4

What are some internal migration cues?

Answer 4

Circadian Rhythm (The Organism’s Internal Calendar), Fat Reserves (Low or high fat reserves), Sexual Maturity (Hormones trigger innate desire to reproduce)

Question 5

Why do Organisms migrate?

Answer 5

For Food, Better shelter, and to Reproduce.

Question 6

What are the common methods of navigation?

Answer 6

Solar Navigation (Sun Compass), Stellar Navigation (Star Compass), Earth’s Magnetic Compass, Landmarks, Smells, sounds, Topographical memory (Visual cues).