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Filial cannibalism of Nabis pseudoferus is not evolutionarily optimal foraging strategy
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Journal Article
Filial cannibalism of Nabis pseudoferus is not evolutionarily optimal foraging strategy
2024
Overview
Using a recursion model with real parameters of
Nabis pseudoferus,
we show that its filial cannibalism is an optimal foraging strategy for life reproductive success, but it is not an evolutionarily optimal foraging strategy, since it cannot maximize the descendant’s number at the end of the reproductive season. Cannibalism is evolutionarily rational, when the number of newborn offspring produced from the cannibalized offspring can compensate the following two effects: (a) The cannibalistic lineage wastes time, since the individuals hatched from eggs produced by cannibalism start to reproduce later. (b) Cannibalism eliminates not only one offspring, but also all potential descendants from the cannibalized offspring during the rest of reproductive season. In our laboratory trials, from conspecific prey
Nabis pseudoferus
did not produce newborn nymphs enough to compensate the above two effects.
Publisher
Nature Publishing Group UK,Nature Publishing Group,Nature Portfolio
Subject
