Data from: Queen longevity and fecundity affect conflict with workers over resource inheritance in a social insect
Data files
Oct 06, 2018 version files 565.05 KB
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1 - Experiment_(a)_data.csv
4.95 KB
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2 - Experiment_(b)_frequency of egg-laying events.csv
3.01 KB
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3 - Experiment_(b)_number of eggs laid per event.csv
192 B
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4 - Experiment_(c)_digitalfilmaggressionallsep.csv
10.99 KB
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5 - Experiment_(c)_queenactivityrate.csv
9.16 KB
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6 - Experiment_(c)_anytimeperiod.csv
64.41 KB
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7 - Experiment_(c)_eggmanipulationperiodonly.csv
58.89 KB
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8 - Experiment_(c)_queeneggproduction.csv
8.61 KB
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README_for_1 - Experiment_(a)_data.rtf
49.11 KB
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README_for_2 - Experiment_(b)_frequency of egg-laying events.rtf
47.55 KB
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README_for_3 - Experiment_(b)_number of eggs laid per event.rtf
47.59 KB
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README_for_4 - Experiment_(c)_digitalfilmaggressionallsep.rtf
53.53 KB
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README_for_5 - Experiment_(c)_queenactivityrate.rtf
55.99 KB
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README_for_6 - Experiment_(c)_anytimeperiod.rtf
52.94 KB
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README_for_7 - Experiment_(c)_eggmanipulationperiodonly.rtf
52.95 KB
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README_for_8 - Experiment_(c)_queeneggproduction.rtf
45.18 KB
Abstract
Resource inheritance is a major source of conflict in animal societies. However, the assumptions and predictions of models of conflict over resource inheritance have not been systematically tested within a single system. We developed an inclusive fitness model for annual eusocial Hymenoptera that predicts a zone of conflict in which future reproductive workers are selected to enforce nest inheritance before the queen is selected to cede the nest. We experimentally tested key elements of this model in the bumble bee Bombus terrestris. In colonies from which queens were sequentially removed, queen tenure was significantly negatively associated with worker male production, confirming that workers gain direct fitness by usurping the queen. In unmanipulated colonies, queen fecundity decreased significantly over the latter part of the colony cycle, confirming that workers' indirect fitness from maintaining queens declines over time. Finally, in an experiment simulating loss of queen fecundity by removal of queens' eggs, worker-to-queen aggression increased significantly and aggressive workers were significantly more likely to become egg-layers, consistent with workers monitoring queen fecundity to assess the net benefit of future reproduction. Overall, by upholding key assumptions and predictions of the model, our results provide novel empirical support for kin-selected conflict over resource inheritance.