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Questions and Answers
Which type of migration involves movement between different latitudes?
Which type of migration involves movement between different latitudes?
- Latitudinal migration (correct)
- Seasonal migration
- Partial migration
- Altitudinal migration
Nocturnal migration refers to birds migrating during daylight hours.
Nocturnal migration refers to birds migrating during daylight hours.
False (B)
What is the main issue related to navigation encountered by migrating birds?
What is the main issue related to navigation encountered by migrating birds?
Way finding or navigation
The type of migration that occurs due to environmental changes is called __________ migration.
The type of migration that occurs due to environmental changes is called __________ migration.
Match the types of migration with their corresponding descriptions:
Match the types of migration with their corresponding descriptions:
Flashcards
Climate Migration
Climate Migration
Migration triggered by changes in weather patterns, such as temperature or rainfall.
Diurnal Migration
Diurnal Migration
Migration that takes place during the day, allowing birds to use visual cues for navigation.
Alimental Migration
Alimental Migration
Migration influenced by food availability, where birds move to areas with abundant food sources.
Nocturnal Migration
Nocturnal Migration
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Seasonal Migration
Seasonal Migration
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Study Notes
Avian Migration
- Bird migration is a seasonal movement of birds
- Types of migration include:
- Latitudinal migration: Movement based on latitude
- Altitudinal migration: Movement based on altitude
- Longitudinal migration: Movement based on longitude
- Partial migration: Only some birds migrate
- Erratic migration: Irregular migration patterns
- Seasonal migration: Migration based on seasons
- Climate migration: Migration based on climate changes
- Alimental migration: Migration for food
- Gametic migration: Migration for mating
Modes of Flight in Migration
- Time of flight:
- Diurnal migration: Daytime flight
- Nocturnal migration: Nighttime flight
- Range of migration: Distance covered
- Altitude of flight: Height during migration
- Velocity during migration: Speed during migration
- Routes of migration: Paths taken during migration
Problems of Migration
- Problems of way finding or navigation
- Topographic cues: Using geographical features for navigation
- Experience: Past experiences help birds navigate
- Telluric currents: Using Earth's magnetic field
- Problems of origin of migration
- Problems of stimulus or immediate causes for migration
- Environmental stimuli
- Gonadial stimuli
- Thyroid hypothesis
- Anti-pituitary hormones
- Metabolic hypothesis
Segregation during Migration
- Birds separate during migration
- Regularity of migration: Consistent timing of migration
Disadvantages and Advantages of Avian Migration
- Information about disadvantages and advantages of migration is not included in the document provided
References
- Young, J. Z. (2004). The Life of Vertebrates. III Edition. Oxford university press.
- Darlington P.J. The Geographical Distribution of Animals, R.E. Krieger Pub Co.
- Hall B.K. and Hallgrimsson B. (2008). Strickberger's Evolution. IV Edition. Jones. and Bartlett Publishers Inc.
- Dorit, Walker & Barnes: Zoology. Brooks Cole; 1 edition (February 15, 1991).
- Nigam: Biology of Chordates (1997, S.Chand).
- Kotpal: Modern text book of Zoology: Vertebrates (Rastogi Publication).
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