Send the link below via email or IMCopy
Present to your audienceStart remote presentation
- Invited audience members will follow you as you navigate and present
- People invited to a presentation do not need a Prezi account
- This link expires 10 minutes after you close the presentation
- A maximum of 30 users can follow your presentation
- Learn more about this feature in our knowledge base article
Do you really want to delete this prezi?
Neither you, nor the coeditors you shared it with will be able to recover it again.
Make your likes visible on Facebook?
You can change this under Settings & Account at any time.
The Origin of Flapping in Birds
Transcript of The Origin of Flapping in Birds
Prey choice is independent
Hunting technique indirectly effects
Falocnini: prey is immobilized upon impact
Accipitrids/Strigiformes: prey is more likely to struggle
Struggling prey is held down by "stability flapping" Max grip strength Prey held down by body weight The Origin of Flapping in Birds http://xkcd.com/1104/ Raptor (birds of prey) Families
Accipitridae: hawks, eagles, buzzards
Falconidae: falcons, caracaras
Pandionidae: osprey Basal birds (Paraves) and Deinonychosauria used their feathered forelimbs to help hold prey down during feeding (stability flapping)
This lead to flapping for flight How did flight evolve? Three leading hypotheses
Pouncing Proavis model
Wing-assisted Incline Running
Arboreal model What does talon morphology tell us about these birds? Gallimimus Allosaurus Deinonychus "Flapping First" Hypothesis Archaeopteryx Goshawk Golden Eagle Albatross Image courtesy Steveoc 86 Requirements for Flight Airworthy wing
Strong flight stroke
High metabolic level
Coordination Stability Flapping Videos