1. Evolution CASE STUDIES: The evolution of the honeybee dance language

3. Karl von Frisch 1886-1982 (Nobel prize 1973)

4. How does the dance encode direction?

5. Prof. Lindauer goes to the tropics

6. Apis cerana – the Asian hive bee

7. Apis dorsata – the giant honeybee (or rock bee) up to 1 inch long

8. Apis florea – the dwarf honeybee dorsata and florea in comparison

9. Apis florea (dwarf honeybee) nest dances are performed on the horizontal surface, waggle run directly oriented to the food source

10. The evolution of the dance language

12. Forager behavior Excited running for 13s to 10min (average 2,6 min) Dornhaus & Chittka, Nature 1999

13. From: Chittka & Dornhaus 1999

14. Jamming the information content of the waggle dance

15. oriented dance disoriented dance

16. Measuring foraging success 12,035 kg Daily weight changes of a beehive can be measured on a scale - this reflects mostly nectar intake

17. Benefits of dance communication are limited to the tropical habitat

18. temperate

19. tropical

20. Spatial aggregation in tropical and temperate habitats Tropics Temperate

21. The honeybees originated in tropical Asia