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8 results for “prey quality”
Food quantity and quality modulates inducible defences in a common predator-prey system
<p><span>Zooplankton display different inducible defences against invertebrate and vertebrate predators. The response pattern to gape-limited invertebrate predators involves increased somatic growth and offspring body size but delayed maturity and reduced offspring numbers. In contrast to this general pattern, the freshwater model organism <em>Daphnia magna</em> has been reported to exhibit a different response when encountering the gape-limited tadpole shrimp <em>Triops cancriformis</em>. Under laboratory conditions, <em>D. magna</em> showed increased somatic growth, earlier maturation, and an increase in both offspring number and size. We propose here that the discrepancy between the previously observed and the theory-based response patterns against invertebrate predators is due to differences in food availability in the applied laboratory settings and assessed whether the defensive response of <em>D. magna</em> against <em>T. cancriformis</em> is modulated differently by food quantity and quality. We found a strong impact of food quantity and quality on the defence response of <em>D. magna</em> to <em>T. cancriformis</em> kairomones. The prey seem to be able to overcome trade-offs between morphological defence traits and reproductive traits, but distinctly between high food quantity and high food quality. Thereby, reproductive traits were preferred over morphological defences. Furthermore, removal of particles from the <em>T. cancriformis</em>-conditioned water caused a defence pattern in <em>D. magna</em> that was consistent with the general response pattern known from other invertebrate predators, thus explaining the described discrepancy to previous studies with <em>T. cancriformis</em>. <span> </span>Our study highlights the importance of assessing food-related effects on predator-prey interactions to understand trophic relationships and food web processes.</span></p>
Supplementary data for "Individual quality and environmental factors interact to shape reproduction and survival in a resident bird of prey"
<p><strong>Abstract</strong></p> <p>The archive contains data file and R-Script to reproduce the results presented in the paper “Individual quality and environmental factors interact to shape reproduction and survival in a resident bird of prey” published in Royal Society Open Science.</p> <p><strong><span> </span></strong></p>
Association of prey quality with environmental odors in the foraging behavior of Pardosa milvina
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Data from: Understanding spatial distributions: negative density-dependence in prey causes predators to trade-off prey quantity with quality
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Data from: Recent prey capture experience and dynamic habitat quality mediate short-term foraging site fidelity in a seabird
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Data from: Effects of prey quality and predator body size on prey DNA detection success in a centipede predator
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Quantity over quality? Prey-field characteristics influence the foraging decisions of little penguins (Eudyptula minor) - b
<p>Camera data for obtaining results for paper</p>
Quantity over quality? Prey-field characteristics influence the foraging decisions of little penguins (Eudyptula minor) - a
<p>Camera data for obtaining results for paper</p>
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International Brain Laboratory public data
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OpenNeuro
OpenNeuro is a free, open platform for sharing neuroimaging datasets, with public search, dataset pages, and download paths for web, S3, DataLad, and the OpenNeuro CLI.