When?

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When?
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Graphical Solution of the Optimal Lysis Time
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Evolution of Optimal Lysis Time
Environments with different host quantities N1 gt
N2
ln(phage/cell)
Wang et al. (1996) Evol. Ecol. 10 545-558.
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Wang et al. (1996) Evol. Ecol. 10 545-558.
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Summary

• High host quantity (which reduces travel time)
  promotes shorter lysis time, and vice versa.
• (2) High host quality (between environments)
  promotes shorter lysis time, and vice versa.
• Both Life-History Predictions Invoke MVT

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Parker, G.A. 1974. Evolution 2893.

• Male Copulatory Duration
• Fertilization of Ova Has Diminishing Returns
• Dungflies Copulate Near Cowpats, Oviposition
• Given Resource, Males Arrive First
• Females Arrive Males Compete
• Mating Male Guards Female During Oviposition
• Male Searches for New Mate

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Cycle for Males

• Time Guarding Female, Search Time
• Gain Fertilizations During Mating
• Guarding Search Travel (Constraints)
• Male can Adjust Copulation Time

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Guarding Search 156.5 Minutes
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Parker, G.A. 1974. Evolution 2893.

• Hypothesis Selection can favor long-term rate at
  which a male fertilizes ova.
• MVT Some Understanding of Mating Behavior