MigrationAdvanced Biology – Spring 2013

WARM UP• Why do animals migrate?• Do humans migrate? • List some differences and similarities between why each species

below migrates.

Humans Birds

What is migration?• Migration:

What is migration?• Migration: A regular (or in some rare cases irregular)

movement over relatively long distances.

What is migration?• Migration: A regular (or in some rare cases irregular)

movement over relatively long distances.

• Many types of animals migrate, a few examples:

What is migration?• Migration: A regular (or in some rare cases irregular)

movement over relatively long distances.

• Many types of animals migrate, a few examples:• Birds• Fish• Mammals

What is migration?• Migration: A regular (or in some rare cases irregular)

movement over relatively long distances.

• Many types of animals migrate, a few examples:• Birds• Fish• Mammals

• Three techniques animals use to migrate.

Migration Techniques

Migration Techniques• PILOTING:

Migration Techniques• PILOTING:• When an animals moves from one familiar landmark to another

until it reaches its destination.

Migration Techniques• PILOTING:• When an animals moves from one familiar landmark to another

until it reaches its destination.

• ORIENTATION:

Migration Techniques• PILOTING:• When an animals moves from one familiar landmark to another

until it reaches its destination.

• ORIENTATION:• Animals can detect compass directions and travels in a particular

straight line path for a certain distance or until it reaches its destination.

Migration Techniques• PILOTING:• When an animals moves from one familiar landmark to another

until it reaches its destination.

• ORIENTATION:• Animals can detect compass directions and travels in a particular

straight line path for a certain distance or until it reaches its destination.

• NAVIGATION:

Migration Techniques• PILOTING:• When an animals moves from one familiar landmark to another

until it reaches its destination.

• ORIENTATION:• Animals can detect compass directions and travels in a particular

straight line path for a certain distance or until it reaches its destination.

• NAVIGATION:• When one determines one’s present location relative to other

locations, in addition to orientation.

Types of Migration

Types of Migration• Seasonal Migration:

Types of Migration• Seasonal Migration:• Migration that corresponds with the changing of seasons. • Most migrations are seasonal migrations.

Types of Migration• Seasonal Migration:• Migration that corresponds with the changing of seasons. • Most migrations are seasonal migrations.

• Latitudinal Migration:

Types of Migration• Seasonal Migration:• Migration that corresponds with the changing of seasons. • Most migrations are seasonal migrations.

• Latitudinal Migration:• Movement of animals from North to South.

Types of Migration• Seasonal Migration:• Migration that corresponds with the changing of seasons. • Most migrations are seasonal migrations.

• Latitudinal Migration:• Movement of animals from North to South.

• Altitudinal Migration:

Types of Migration• Seasonal Migration:• Migration that corresponds with the changing of seasons. • Most migrations are seasonal migrations.

• Latitudinal Migration:• Movement of animals from North to South.

• Altitudinal Migration:• The movement of animals up and down land features, like

mountains.

Types of Migration

Types of Migration• Reproduction Migration:

Types of Migration• Reproduction Migration:• The migration of animals to bear young.

Types of Migration• Reproduction Migration:• The migration of animals to bear young.

• Removal Migration:

Types of Migration• Reproduction Migration:• The migration of animals to bear young.

• Removal Migration:• Migration of animals that don’t return to the original area.

Types of Migration• Reproduction Migration:• The migration of animals to bear young.

• Removal Migration:• Migration of animals that don’t return to the original area.

• Complete Migration:

Types of Migration• Reproduction Migration:• The migration of animals to bear young.

• Removal Migration:• Migration of animals that don’t return to the original area.

• Complete Migration:• When almost all members of the species leave their breeding

range during the non-breeding season.

Types of Migration• Reproduction Migration:• The migration of animals to bear young.

• Removal Migration:• Migration of animals that don’t return to the original area.

• Complete Migration:• When almost all members of the species leave their breeding

range during the non-breeding season.

• Partial Migration:

Types of Migration• Reproduction Migration:• The migration of animals to bear young.

• Removal Migration:• Migration of animals that don’t return to the original area.

• Complete Migration:• When almost all members of the species leave their breeding

range during the non-breeding season.

• Partial Migration:• When some, but not all, of the species leave their breeding range

during the non-breeding season.