Learning Effects on Sperm Competition and Reproductive Fitness
| العنوان: | Learning Effects on Sperm Competition and Reproductive Fitness |
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| المؤلفون: | Mary E. Ramsey, David Crews, R. Nicolle Matthews, Michael Domjan |
| المصدر: | Psychological Science. 18:758-762 |
| بيانات النشر: | SAGE Publications, 2007. |
| سنة النشر: | 2007 |
| مصطلحات موضوعية: | Male, Offspring, Zoology, 050109 social psychology, Coturnix, Quail, 050105 experimental psychology, Developmental psychology, Conditioning, Psychological, Copulation, Animals, Learning, 0501 psychology and cognitive sciences, Mating, Sperm competition, General Psychology, Behavior, Animal, Reproductive success, biology, Reproduction, Coturnix japonica, 05 social sciences, Sire, Classical conditioning, DNA, biology.organism_classification, Spermatozoa, Sperm, Fertilization, behavior and behavior mechanisms, Female, Cues, Psychology, Reinforcement, Psychology |
| الوصف: | Learning and other common psychological processes presumably evolved because they contribute to reproductive fitness, but reproductive outcomes are rarely measured in psychology experiments. We examined the effects of Pavlovian conditioning on reproductive fitness in a sperm-competition situation. Typically, two males mating with the same female in immediate succession sire similar numbers of offspring. In a study with domesticated quail (Coturnix japonica), we increased paternity success by presenting a Pavlovian signal that permitted one of two competing males to predict copulatory opportunity. Using microsatellite-based DNA fingerprinting, we found that signaled males sired 72% of the offspring when competing with control males, and this effect was independent of copulation order. In the absence of Pavlovian conditioning, rates of fertilization were not significantly different for two males that copulated with the same female. These findings demonstrate that Pavlovian conditioning contributes to reproductive fitness and suggest that individual past experience can bias genetic transmission and the evolutionary changes that result from sexual competition. |
| تدمد: | 1467-9280 0956-7976 |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_dedup___::68c0bed0523b90123c4f920ad7a9bd2d https://doi.org/10.1111/j.1467-9280.2007.01974.x |
| حقوق: | CLOSED |
| رقم الأكسشن: | edsair.doi.dedup.....68c0bed0523b90123c4f920ad7a9bd2d |
| قاعدة البيانات: | OpenAIRE |
| تدمد: | 14679280 09567976 |
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