Migrations

Question 1

name some examples of migratory species

Answer 1

leatherback turtle, monarch butterfly

Question 2

how do humans impact migratory patterns

Answer 2

building fences, industrialisation, bright lights

Question 3

give 4 advantages of migration

Answer 3

-exploit new resources seasonaly
-protection of vulnerable young
-avoid inbreeding depression
-reducing competition

Question 4

give 5 disadvantages of migration

Answer 4

-bad weather
-lack of emergency stops
-predation
-disorientation
-potential lack of final stop

Question 5

give 4 methods of tracking and measuring migration

Answer 5

-point counts
-natural markings
-radar
-satellite tracking

Question 6

give an example of migration physiology

Answer 6

internal changes to inrease flight performance and increase fuel reserves

Question 7

within migration what does biomechanics refer to

Answer 7

the width, area and length of the species, this may alter based on the migratory pressures on each species

Question 8

describe the methods of increasing fat storage for migration

Answer 8

there is an activation of membrane-bound enzymes to increase metabolism, this activates genes which regulate lipid metabolism