Search results for "cost of sex"

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Daphnia invest in sexual reproduction when its relative costs are reduced

2018

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…

0106 biological sciences0301 basic medicineLIFE-HISTORYsexual reproductioncost of sexAsexual reproductionCYCLICAL PARTHENOGENS01 natural sciencesDaphniaPopulation density2300 General Environmental Sciencetiming of sexLOCAL ADAPTATION2400 General Immunology and Microbiologypopulation dynamicsGeneral Environmental Scienceeducation.field_of_studybiologyINDUCTIONMIXED-EFFECTS MODELSGeneral MedicineCladocera1181 Ecology evolutionary biology590 Animals (Zoology)General Agricultural and Biological SciencesEvolutionPopulationDaphnia magna1100 General Agricultural and Biological SciencesPULEX010603 evolutionary biologyGeneral Biochemistry Genetics and Molecular Biology03 medical and health sciences10127 Institute of Evolutionary Biology and Environmental Studies1300 General Biochemistry Genetics and Molecular BiologyPopulation growtheducationpopulation densityLocal adaptationROTIFERSGeneral Immunology and Microbiologysuvullinen lisääntyminenreproduction (biology)biology.organism_classificationlisääntyminenpopulaatiodynamiikkaSexual reproduction030104 developmental biologyDaphniaMAGNADENSITYvesikirputta1181570 Life sciences; biologyDemography
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Data from: Daphnia invest in sexual reproduction when its relative costs are reduced

2018

The timing of sex in facultatively sexual organisms is critical to fitness, due to the differing demographic consequences of sexual vs. 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 sex…

relative cost of sexmedicine and health careTiming of sexLife SciencesMedicinepopulation density
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