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Fig. 1 | BMC Biology

Fig. 1

From: The influence of immune challenges on the mean and variance in reproductive investment: a meta-analysis of the terminal investment hypothesis

Fig. 1

Conceptual model depicting individual terminal investment response varying according to the level of perceived survival threat, leading to potential changes in mean and variance. Each thin continuous line represents a single individual’s reproductive investment as survival threat changes. Vertical dashed lines represent levels of threat where different effects on trait mean or variance can be observed

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