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| DOI | 10.1111/ele.12929 |
| Daphnia females adjust sex allocation in response to current sex ratio and density | |
| Booksmythe I.; Gerber N.; Ebert D.; Kokko H. | |
| 发表日期 | 2018 |
| ISSN | 1461023X |
| 卷号 | 21期号:5 |
| 英文摘要 | Cyclical parthenogenesis presents an interesting challenge for the study of sex allocation, as individuals’ allocation decisions involve both the choice between sexual and asexual reproduction, and the choice between sons and daughters. Male production is therefore expected to depend on ecological and evolutionary drivers of overall investment in sex, and those influencing male reproductive value during sexual periods. We manipulated experimental populations, and made repeated observations of natural populations over their growing season, to disentangle effects of population density and the timing of sex from effects of adult sex ratio on sex allocation in cyclically parthenogenetic Daphnia magna. Male production increased with population density, the major ecological driver of sexual reproduction; however, this response was dampened when the population sex ratio was more male-biased. Thus, in line with sex ratio theory, we show that D. magna adjust offspring sex allocation in response to the current population sex ratio. © 2018 John Wiley & Sons Ltd/CNRS |
| 英文关键词 | Cyclical parthenogen; Daphnia magna; population density; sex allocation; sex ratio adjustment |
| 语种 | 英语 |
| scopus关键词 | Daphnia; Daphnia magna; animal; Daphnia; evolution; female; male; parthenogenesis; reproduction; sex ratio; Animals; Biological Evolution; Daphnia; Female; Male; Parthenogenesis; Reproduction; Sex Ratio |
| 来源期刊 | Ecology Letters
 |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://gcip.llas.ac.cn/handle/2XKMVOVA/121335 |
| 作者单位 | Department of Evolutionary Biology and Environmental Studies, University of Zurich, Winterthurerstrasse 190, Zurich, CH-8057, Switzerland; Tvärminne Zoological Station, J.A. Palmenintie 260Hanko 10900, Finland; Centre of Excellence in Biological Interactions, Department of Biological and Environmental Science, University of Jyväskylä, Jyväskylä, Finland; Department of Environmental Sciences, Zoology, University of Basel, Vesalgasse 1, Basel, Switzerland |
| 推荐引用方式 GB/T 7714 | Booksmythe I.,Gerber N.,Ebert D.,et al. Daphnia females adjust sex allocation in response to current sex ratio and density[J],2018,21(5). |
| APA | Booksmythe I.,Gerber N.,Ebert D.,&Kokko H..(2018).Daphnia females adjust sex allocation in response to current sex ratio and density.Ecology Letters,21(5). |
| MLA | Booksmythe I.,et al."Daphnia females adjust sex allocation in response to current sex ratio and density".Ecology Letters 21.5(2018). |
| 条目包含的文件 | 条目无相关文件。 | |||||
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