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    Parasitic wasps optimize egg-laying based on host availability. Stochasticity in host encounters significantly impacts optimal egg loads, especially for pro-ovigenic wasps.

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    Area of Science:

    • Ecology
    • Evolutionary Biology
    • Entomology

    Background:

    • Parasitic wasps allocate resources between reproduction and survival.
    • Host availability is unpredictable, creating stochasticity in reproductive opportunities.

    Purpose of the Study:

    • To model optimal egg loads in parasitic wasps considering resource allocation.
    • To investigate the impact of host distribution and stochasticity on egg load optimization.

    Main Methods:

    • Developed a general model for pro-ovigenic parasitoids.
    • Utilized a dynamic programming model for synovigenic parasitoids.

    Main Results:

    • Stochasticity in host encounters significantly affects optimal egg loads.
    • Patchy host distribution is a primary source of reproductive opportunity stochasticity.
    • Optimal egg loads generally exceed expected host numbers in stochastic environments.

    Conclusions:

    • Resource allocation strategies in parasitic wasps are heavily influenced by environmental uncertainty.
    • Synovigenic parasitoids, while adaptable, still face investment decisions under uncertainty.