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NZQA Plant and animal behaviour > Migration > Flashcards

Flashcards in Migration Deck (6)
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1

What does the term "Anadromous" mean?

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

2

If fat as an energy storage light or heavy?

Fat is a lighter source of energy storage.

3

What are some external migration cues?

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

4

What are some internal migration cues?

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

5

Why do Organisms migrate?

For Food, Better shelter, and to Reproduce.

6

What are the common methods of navigation?

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