Feather Morphology
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Transcript of Feather Morphology
Feather MorphologyAdvanced Biology – Spring 2013
Feathers
Feathers• First seen in the Jurassic Period
Feathers• First seen in the Jurassic Period • bird-reptile Archaeopteryx.
Feathers• First seen in the Jurassic Period • bird-reptile Archaeopteryx.
Feathers• First seen in the Jurassic Period • bird-reptile Archaeopteryx.
• Modified keratin structure.
Feathers• First seen in the Jurassic Period • bird-reptile Archaeopteryx.
• Modified keratin structure.• Hair, fingernails, and scales.
Feathers• First seen in the Jurassic Period • bird-reptile Archaeopteryx.
• Modified keratin structure.• Hair, fingernails, and scales.
• Functions:
Feathers• First seen in the Jurassic Period • bird-reptile Archaeopteryx.
• Modified keratin structure.• Hair, fingernails, and scales.
• Functions:• Flight
Feathers• First seen in the Jurassic Period • bird-reptile Archaeopteryx.
• Modified keratin structure.• Hair, fingernails, and scales.
• Functions:• Flight• Insulation
Feathers• First seen in the Jurassic Period • bird-reptile Archaeopteryx.
• Modified keratin structure.• Hair, fingernails, and scales.
• Functions:• Flight• Insulation• Sensory?
Feathers• First seen in the Jurassic Period • bird-reptile Archaeopteryx.
• Modified keratin structure.• Hair, fingernails, and scales.
• Functions:• Flight• Insulation• Sensory?• Sexual Dimorphism / Courtship Rituals
Feather Types
• Contour
Feather Types
• Contour• Outermost feathers
Feather Types
• Contour• Outermost feathers• Strong and stiff for flight
Feather Types
• Contour• Outermost feathers• Strong and stiff for flight• Each feather controlled by
specialized muscles.
CONTOUR
Feather Types
• Down
Feather Types
• Down• Used in insulation.
Feather Types
• Down• Used in insulation.• Very soft and fluffy.
Feather Types
• Down• Used in insulation.• Very soft and fluffy.• Barbules lack hooks.
Feather Types
• Down• Used in insulation.• Very soft and fluffy.• Barbules lack hooks.• Rachis is missing or reduced.
Feather Types
• Down• Used in insulation.• Very soft and fluffy.• Barbules lack hooks.• Rachis is missing or reduced.
Feather Types
• Semiplume
Feather Types
• Semiplume• Found between other feathers.
Feather Types
• Semiplume• Found between other feathers.• Help maintain warmth AND smooth shape.
Feather Types
• Semiplume• Found between other feathers.• Help maintain warmth AND smooth shape.• Cross between down and contour.
SEMIPLUME
Feather Types
• Filoplume
Feather Types
• Filoplume• Simplest of feathers
Feather Types
• Filoplume• Simplest of feathers• Almost all rachis and few barbs.
Feather Types
• Filoplume• Simplest of feathers• Almost all rachis and few barbs.• Aid in structure and sensory.
FILOPLUME
Feather Types
• Bristles
Feather Types
• Bristles• Very small contour feathers
Feather Types
• Bristles• Very small contour feathers• Highly specialized
Feather Types
• Bristles• Very small contour feathers• Highly specialized• Lack Barbs on outermost parts
Feather Types
• Bristles• Very small contour feathers• Highly specialized• Lack Barbs on outermost parts• Usually found near the beak
Feather Types
• Bristles• Very small contour feathers• Highly specialized• Lack Barbs on outermost parts• Usually found near the beak• Aid in sensory feedback
Feather Types
• Bristles• Very small contour feathers• Highly specialized• Lack Barbs on outermost parts• Usually found near the beak• Aid in sensory feedback • Insect catching
Feather Types
• Bristles• Very small contour feathers• Highly specialized• Lack Barbs on outermost parts• Usually found near the beak• Aid in sensory feedback • Insect catching
• Maybe in protection.
BRISTLES
MORPHOLOGY
MORPHOLOGY
MORPHOLOGY