Dying without wings

1. Dying without wings Natalie Cooper Trinity College Dublin @nhcooper123

2. Kevin Healy @healyke

3. …in this world nothing can be said to be certain, except death and taxes… Benjamin Franklin @benfranklin

4. There is great variation in the lifespans of living things…

7. How can we explain this variation?

8. Body Mass…

9. log(Lifespan) = log(a) +blog(Body mass)

10. log (Lifespan) b log(a) log(Body mass)

11. log (Lifespan) log(Body mass)

12. log (Lifespan) log(Body mass)

13. log (Lifespan) log(Body mass)

14. log (Lifespan) log(Body mass)

15. Why do some species live longer than expected given their body size?

16. A quick side step into life history theory…

24. Why do species have different life history strategies?

25. Variations in extrinsic mortality…

36. Species with adaptations that reduce extrinsic mortality should have longer lifespans than expected given their body mass

37. How can species reduce their extrinsic mortality?

38. Flight?

39. log (Lifespan) log(Body mass)

40. log (Lifespan) log(Body mass)

42. Activity period?

44. Foraging environment?

46. Burrowing?

47. Burrowing?

48. We tested our predictions on 779 mammals and 546 birds (N = 1325)

49. Body Mass…

50. log (Lifespan) log(Body mass)