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Wildlife Physiological Ecology Prof: Creagh Breuner –Associate Professor; Wildlife Biology and Organismal Biology and Ecology –Office: Natural Science.

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Presentation on theme: "Wildlife Physiological Ecology Prof: Creagh Breuner –Associate Professor; Wildlife Biology and Organismal Biology and Ecology –Office: Natural Science."— Presentation transcript:

1 Wildlife Physiological Ecology Prof: Creagh Breuner –Associate Professor; Wildlife Biology and Organismal Biology and Ecology –Office: Natural Science Annex, rm 101 – –Phone: –Office Hours: after class on Monday or by appointment TA: Warren Hansen –Graduate Student: Wildlife Biology –Office: Natural Sciences 105 – –Phone: –Office Hours: TBA

2 YOUR FOLDER NAME First only One positive word your friends would use to describe you Career goal Where were you born? Comfort food

3 LAYSAN ALBATROSS

4 Puffin Murres Gannets Seabird Nesting

5 Capital vs. Income Breeders CAPITALINCOME Decouple feeding and reproductionConstant feeding during reproduction Salmon and sea lions Deer and Finches

6 Laysan Albatross

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8 Incubation Timeline: who’s on the nest? ♀ lays egg ♂ incubates while ♀ leaves to feed ♀ returns ♂ goes to feed ♂ incubates while ♀ leaves to feed Hatch = 1 week How can they do this????? 1.Flight Morphology 2.Fasting Physiology

9 Flight Morphology Big bird… AMAZING wings 1. Aspect Ratio : wing length/wing breadth…larger aspect ratio = better glider pheasanteaglegullalbatross aspect ratio

10 Flight Morphology Big bird… AMAZING wings 1. Aspect Ratio : wing length/wing breadth…larger aspect ratio = better glider 2. Dynamic Soaring: shape of wing allows flight without flapping 3. Low metabolic cost of soaring: in albatross, cost of soaring flight = cost of sitting on eggs

11 Fasting Physiology 1.Big Body Size: can hold high level of energetic reserves 2.Can maintain fast without risking flight muscles 1.Burns energy stores in stomach (stage I) 2.Burns through fat reserves (stage II) 3.Does not burn protein reserves (muscle) until fat is gone (stage III) Stage I Stage II …?...too few data

12 Albatross Summary How to avoid high competition for breeding sites? What adaptations allow albatross to separate foraging and reproduction? –Flight morphology –Fasting Physiology


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