Daphnia invest in sexual reproduction when its relative costs are reduced
Gerber, N., Kokko, H., Ebert, D., & Booksmythe, I. (2018). Daphnia invest in sexual reproduction when its relative costs are reduced. Proceedings of the Royal Society B : Biological Sciences, 285(1871), Article 20172176. https://doi.org/10.1098/rspb.2017.2176
DisciplineEkologia ja evoluutiobiologiaBiologisten vuorovaikutusten huippututkimusyksikköEcology and Evolutionary BiologyCentre of Excellence in Biological Interactions Research
© 2018 The Author(s)
The timing of sex in facultatively sexual organisms is critical to fitness, due to the differing demographic consequences of sexual versus asexual reproduction. In addition to the costs of sex itself, an association of sex with the production of dormant life stages also influences the optimal use of sex, especially in environments where resting eggs are essential to survive unfavourable conditions. Here we document population dynamics and the occurrence of sexual reproduction in natural populations of Daphnia magna across their growing season. The frequency of sexually reproducing females and males increased with population density and with decreasing asexual clutch sizes. The frequency of sexually reproducing females additionally increased as population growth rates decreased. Consistent with population dynamic models showing that the opportunity cost of sexual reproduction (foregoing contribution to current population growth) diminishes as populations approach carrying capacity, we found that investment in sexual reproduction was highest when asexual population growth was low or negative. Our results support the idea that the timing of sex is linked with periods when the relative cost of sex is reduced due to low potential asexual growth at high population densities. Thus, a combination of ecological and demographic factors affect the optimal timing of sexual reproduction, allowing D. magna to balance the necessity of sex against its costs. ...
PublisherThe Royal Society Publishing
Publication in research information system
MetadataShow full item record
Showing items with similar title or keywords.
Efficiency of Daphnia magna in removal of green microalgae cultivated in Nordic recirculating aquaculture system wastewater Stevčić, Čedomir; Pulkkinen, Katja; Pirhonen, Juhani (Elsevier, 2020)The increase of global aquaculture production has boosted the development of recirculating aquaculture systems not only because they reduce water use but also provide opportunities for waste management and the use of ...
Evolution and ecological aspects of parthenogenetic and sexual bagworm moths (Lepidoptera: Psychidae: Naryciinae) Chevasco, Veronica (University of Jyväskylä, 2012)
Jeyasingh, Punidan D.; Pulkkinen, Katja (Springer, 2019)The availability of iron (Fe) varies considerably among diet items, as well as ecosystems. Availability of Fe has also changed due to anthropogenic environmental changes in oceanic as well as inland ecosystems. We know ...
Exploring storytelling as a method to build local knowledge : (Re)thinking sexuality education with rural women in Sucre, Bolivia from a feminist decolonial perspective Pernthaler, Magdalena (2022)Although most SRH interventions today are based on a human rights approach, many of them are inherently Eurocentric, modeled around the needs of privileged Global North women and do not acknowledge the experiences and ...
Lifting the Vendace, Coregonus albula, on the Life Table : Survival, Growth and Reproduction in Different Life-Stages during Very High and Low Abundance Regimes Marjomäki, Timo J.; Valkeajärvi, Pentti; Karjalainen, Juha (Finnish Zoological and Botanical Publishing Board, 2021)We analyzed the variability in vendace population parameters in the context of a life table. Parameters related to growth, fecundity and survival were estimated for post-recruitment (age > 1 growing season) life stages of ...