Survivorship curves Everything dies, but on different schedules 0 - - PDF document

survivorship curves
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Survivorship curves Everything dies, but on different schedules 0 - - PDF document

Survivorship curves Everything dies, but on different schedules 0 299 306 313 320 327 334 341 348 355 xl x m x T = R 0 What are the units of R 0 ? Life table What are the units of T? R 0 = l x m x ? Exponential growth Human


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SLIDE 1

Survivorship curves

Everything dies, but on different schedules

Life table

T = xlxmx

  • R0

299 306 313 320 327 334 341 348 355

What are the units of R0? What are the units of T?

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SLIDE 2

R0 = lxmx

  • ?

Exponential growth

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SLIDE 3

Human population Where will it stop… Gotta stop somewhere - logistic growth What influences K?

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Damuth’s rule Population size decreases with body size rmax changes with size too

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Why do natural populations fluctuate? CHAOS? (Lord) Robert May (1974 Science) Discrete logistic models VERY sensitive to rmax Sensitivity to initial conditions