Ecology and Epidemiology

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Ecology and Epidemiology
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Nicholson Bailey host - parasitoid model
Hn, Pn population densities of hosts and
parasitoids at season no n
RH, RP, a - parameters
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Variations
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Variations
KH environmental capacity for host population
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EquilbriumStability of equilbrium
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How dynamics of N-B models depend on
environmental capacity ?
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Bifurcation diagramLyapunov exponent diagram
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Kermack McKendrick SIR epidemic model
S susceptibles I infectives R - removals
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(No Transcript)
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Threshold theorem
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Severity of epidemic
Relative removal rate
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N population size NS? R? NS0 ?1- S? / S0
- contract of the disease