Wildlife Physiological Ecology

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Wildlife Physiological Ecology. Prof: Creagh Breuner Associate Professor; Wildlife Biology and Organismal Biology and Ecology Office: Natural Science Annex, rm 101 Email: creagh.breuner@umontana.edu Phone: 243-5585 Office Hours: after class on Monday or by appointment
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Wildlife Physiological Ecology
  • Prof: Creagh Breuner
  • Associate Professor; Wildlife Biology and Organismal Biology and Ecology
  • Office: Natural Science Annex, rm 101
  • Email: creagh.breuner@umontana.edu
  • Phone: 243-5585
  • Office Hours: after class on Monday or by appointment
  • TA: Warren Hansen
  • Graduate Student: Wildlife Biology
  • Office: Natural Sciences 105
  • Email: Warren_Hansen@gmail.com
  • Phone: 406-243-5505
  • Office Hours: TBA
  • YOUR FOLDERCareer goalComfort foodNAMEFirst onlyOne positive word your friends would use to describe youWhere were you born?LAYSAN ALBATROSSPuffinSeabird NestingGannetsMurresCapital vs. Income BreedersCAPITALINCOMEDeer and FinchesSalmon and sea lionsDecouple feeding and reproductionConstant feeding during reproductionLaysan AlbatrossIncubation Timeline: who’s on the nest?= 1 week♂ incubates while♀ leaves to feed♂ incubates while♀ leaves to feedHatch♀ returns ♂ goes to feed♀ lays eggHow can they do this?????
  • Flight Morphology
  • Fasting Physiology
  • 302520aspect ratio151050pheasanteaglegullalbatrossFlight MorphologyBig bird…AMAZING wings1. Aspect Ratio: wing length/wing breadth…larger aspect ratio = better gliderFlight MorphologyBig bird…AMAZING wings1. Aspect Ratio: wing length/wing breadth…larger aspect ratio = better glider2. Dynamic Soaring:shape of wing allowsflight without flapping
  • Low metabolic cost of soaring:
  • in albatross, cost of soaring flight = cost of sitting on eggs
  • Albatross weight loss over ~4 week fast10510095% of Initial Condition908580757005101520253035Days of FastingFasting Physiology
  • Big Body Size: can hold high level of energetic reserves
  • Can maintain fast without risking flight muscles
  • Burns energy stores in stomach (stage I)
  • Burns through fat reserves (stage II)
  • Does not burn protein reserves (muscle) until fat is gone (stage III)
  • …?...too few dataStage IStage IIAlbatross 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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