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Adaptive coat colour polymorphism in the Kermode bear of coastal British Columbia

Adaptive coat colour polymorphism in the Kermode bear of coastal British Columbia. Dan R. Klinka And Thomas E. Reimchen. Background. Diversity of colour coat among animals Prey or Predator ie Mouse or Cat Polymorphism is controlled by Mc1r gene . Supporting Paper. Supporting Paper.

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Adaptive coat colour polymorphism in the Kermode bear of coastal British Columbia

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  1. Adaptive coat colour polymorphism in the Kermode bear of coastal British Columbia Dan R. Klinka And Thomas E. Reimchen

  2. Background • Diversity of colour coat among animals • Prey or Predator • ie Mouse or Cat • Polymorphism is controlled by Mc1r gene

  3. Supporting Paper

  4. Supporting Paper

  5. Big Picture • Kermode bear aka Spirit Bear • Western B.C • White Recessive • Researcher Hypothesis

  6. Methods • Roirdan Creek on Gribbel Island • Late Auguest – Early October 2000-2002 • Daylight, Twilight and Darkness • B=37 W=4 • Salmon Response • 4m circle in costume

  7. Results • Capture effieceny W=30.0% B=26.5% • Different among lights • Darkness and Twilight W=22.8% B=25.8% • Daylight W=34.1% B=25.3% • Technique • Salmon Count • Darkness and Twilight same • Daylight W=15.05(1.13) B=8.13(0.86)

  8. Results

  9. Major Findings • White morph more efficient at capturing during the daylight • Consistent with Hypothesis • Predicted that increase foraging activity during daylight. • No suuport

  10. Questions • Other than Birds and Bears name 3 other animals that have the dimorphic characteristics? List the benefits involved for that species. • What other advantages or disadvantages do you believe the Kermode Bear has? • What is the only place in B.C that has a captive Kermode Bear??????

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