Migration, navigation, and Orientation in Birds.pptx

Migration navigation and Orientation in Birds, introduction, types, rules, adaptation

1. Migration, Navigation, and Orientation in Birds A Presentation on Bird Migration Mechanisms

2. Name : Gu lafsha Class:M.Sc . Zoology Subject: Animal Behaviour R.G(PG) college Meerut

3. Introduction Bird migration is a regular seasonal movement between breeding and wintering grounds.

4. Why Do Birds Migrate? - Food availability - Climate conditions - Breeding and nesting requirements

5. Types of Bird Migration - Latitudinal Migration - Longitudinal Migration - Altitudinal Migration - Partial Migration - Nomadic Migration

6. Navigation Mechanisms - Sun Compass - Star Compass - Earth's Magnetic Field - Visual Landmarks - Olfactory Cues

7. Orientation Strategies - Innate Genetic Programming - Learning from Experience - Use of Environmental Cues

8. Role of Earth's Magnetic Field Birds have magnetoreception, allowing them to detect Earth's magnetic field and navigate accurately.

9. Migration Routes of Birds - Flyways: major bird migration routes - Examples: Pacific Flyway, Atlantic Flyway, East Asia-Australasia Flyway

10. Challenges in Migration - Habitat loss - Climate change - Predators - Exhaustion an d starvation

11. Adaptations for Migration - Increased fat storage - Efficient wing shape - Ability to fly long distances without resting

12. Case Study: Arctic Tern Arctic Tern has the longest migration route, traveling from the Arctic to Antarctica and back (~70,000 km annually).

13. Conclusion Bird migration is a remarkable natural phenomenon guided by navigation and orientation mechanisms.

14. https://images.app.goo.gl/5BCQprL9oX8S7mpz6 https://images.app.goo.gl/LD6SC2Wm7fUubiJs9 https://images.app.goo.gl/NX5u73ADtHHDLFMPA