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Female Choice And The Heritability Of Attractive Male Traits In A Field Cricket Gryllus Integer
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Book Synopsis Female Choice and the Heritability of Attractive Male Traits in a Field Cricket, Gryllus Integer by : Ann V. Hedrick
Download or read book Female Choice and the Heritability of Attractive Male Traits in a Field Cricket, Gryllus Integer written by Ann V. Hedrick and published by . This book was released on 1987 with total page 142 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Body Size in the Field Cricket Gryllus Integer (Orthoptera by : Elizabeth Jean McGowan
Download or read book Body Size in the Field Cricket Gryllus Integer (Orthoptera written by Elizabeth Jean McGowan and published by . This book was released on 1986 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The influence of male body weight on the aggressive and mating behaviour of male Gryllus integer was studied under laboratory conditions. The relationship between adult age and weight was first determined; female weight increased and male weight decreased with age. Virgin males that had been isolated since the adult molt were paired for similar age and a difference in weight of greater than 200 mg. Paired males and a virgin female were observed in a glass arena for 24 minutes or until a mating occurred. Larger males mated significantly more often than smaller males. Larger males attacked more often, were more successful in aggressive encounters and had more contact with the female. Males that did not mate had lower rates of courtship and mounts than males that mated. Females in trials that did not result in a mating were signifcantly heavier than females in trials that resulted in a mating. Larger males that mated were significantly closer in weight to the weight of the female than larger males in trials that did not result in a mating. Larger males in trials that did not result in a mating had higher rates of aggressive stridulation than larger males that mated. Male weight is therefore important in mating success; fitness traits should theoretically show low genetic variability. However, significant heritability values were found for live weight, dry weight, head width, pronotum width and length, hind femur length and forewing length when estimated from the regression of offspring on mid-parent values, offspring and female and male values separately and full-sib correlations. The heritability of hind femur width was significant when estimated from the regression of offspring on male parent and from full-sib correlations. Heritability estimates of forewing length were significantly higher when estimated from the regression of offspring on female parent than when estimated from the regression of offspring on male parent. High phenotypic, genetic and environmental correlations were found between all pairs of traits. Data on male mating success and the heritability of fitness traits were discussed in terms of the maintenance of genetic variability.
Book Synopsis Heritability of Multiple Mating by Female Field Crickets, Gryllus Integer (Orthoptera by : Brent D. Solymar
Download or read book Heritability of Multiple Mating by Female Field Crickets, Gryllus Integer (Orthoptera written by Brent D. Solymar and published by . This book was released on 1988 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The heritability of multiple mating in female Gryllus integer crickets was studied. Two preliminary experiments were conducted to determine when females first mate following the post-imaginal moult and to ascertain whether constant exposure to males affects female mating rate. Female Q. integer first mated at an average age of 3.6 days (S.D. = 2.3, Range = 0-8 days) . Exposing female crickets to courting males 24 hr daily did not significantly alter mating rates from those females in contact with males for only 5 hr per day. A heritability value of 0.690 ± 0.283 was calculated for multiple mating behavior in female Q. integer using a parent-offspring regression approach. Parental females mated between land 30 times (x 9.8, S . D. = 6. 6 ) and offspring matings ranged from 0 to 26 times (x 7 .3, S.D. = 3.4). Multiple mating is probably a sexually selected trait which functions as a mechanism of female choice and increases reproductive success through increased offspring production. Classical theory suggests that traits intimately related with fitness should exhibit negligible heritable variation. However, this study has shown that multiple mating, a trait closely linked with reproductive fitness, exhibits substantial heritability. These results are in concordance with a growing body of empirical evidence suggesting many fitness traits in natural populations demonstrate heritabilities far removed from zero. Various mechanisms which may maintain heritable variation for female multiple mating in wild, outbred Q. integer populations are discussed.
Book Synopsis Male reproductive competition and sexual selection in the field cricket Gryllus integer by : William Henry Cade
Download or read book Male reproductive competition and sexual selection in the field cricket Gryllus integer written by William Henry Cade and published by . This book was released on 1976 with total page 240 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis The Complexities of Mate Choice by : Alexandra Prokuda
Download or read book The Complexities of Mate Choice written by Alexandra Prokuda and published by . This book was released on 2016 with total page 119 pages. Available in PDF, EPUB and Kindle. Book excerpt: The first chapter provides a comprehensive review of the quantitative genetics of sexually selected traits, preference for those traits, and the correlation between them. The review shows that the average heritability of sexually selected traits is the same as that of non-sexually selected traits. The data also show that the average heritability of preference is lower than previously reported and that the heritability of sexually selected traits decreases as the correlation between the trait and female preference increases. The second and third chapters explore female preferences for male traits in Gryllus firmus. In the second chapter the experiment shows that females choose based on multiple components of the male calling song. Although many of the components do not have a significant effect when looked at separately, as many as 6 song components and 2 other variables contribute to female choice when put together in a multivariate model. The third chapter shows that female strategy for choosing males based on song duration alone is passive, suggesting that females do not actively compare different males but go to the male that is singing at the time that she is choosing. This strategy is contrary to what is assumed under the indicator mechanisms of mate choice and may be informative to the study of the origins of mate choice.
Book Synopsis Signalers and Receivers by : Michael D. Greenfield
Download or read book Signalers and Receivers written by Michael D. Greenfield and published by Oxford University Press. This book was released on 2002-02-28 with total page 432 pages. Available in PDF, EPUB and Kindle. Book excerpt: In most terrestrial and aquatic habitats, the vast majority of animals transmitting and receiving communicative signals are arthropods. This book presents the story of how this important group of animals use pheromones, sound, vibration, and light for sexual and social communication. Because of their small to minute body size most arthropods have problems sending and receiving acoustic and optical information, each of which have their own severe constraints. Because of these restraints they have developed chemical signaling which is not similarly limited by scale. Presenting the latest theoretical and experimental findings from studies of signaling, it suggests that close parallels between arthropods and vertebrates reflect a very limited number of solutions to problems in behavior that are available within the confines of physical laws.
Download or read book The American Naturalist written by and published by . This book was released on 1988 with total page 1004 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Acoustic Communication in Animals by : Yoshimasa Seki
Download or read book Acoustic Communication in Animals written by Yoshimasa Seki and published by Springer Nature. This book was released on 2023-07-19 with total page 231 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is the first volume of the bioacoustics series published by the Society for Bioacoustics. This volume provides an overview of the advances and recent topics in acoustic communication in various animals. Most animals produce vibrations and sounds by moving their body parts, including vocal organs. These sounds can be research targets of bioacoustics studies. How animals use these sounds, especially in inter-individual relationships, is the focus of this volume, “Acoustic Communication in Animals”. The authors’ expertise varies from molecular biology, neurobiology to psychology, and human brain imaging. Their research subjects range from invertebrates to humans. Despite the variety of topics, chapters are developed under the consideration of ethology and evolution. Readers will recognize the profundity of the topics in each chapter. In addition, the view and understanding of natural sound sequences produced by animals can vary among different cultures. Research from Japan and regions that have been underrepresented in previous literature can offer new ideas and unique perspectives in the study of bioacoustics. Readers can grasp the progress of this research field in a broad range of species in one book. The book presents multi- and interdisciplinary topics and appeals to researchers and students in fields including psychology, physiology, zoology, ethology, and neurosciences.
Download or read book Canadian Journal of Zoology written by and published by . This book was released on 1998 with total page 890 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Proceedings written by and published by . This book was released on 1999 with total page 588 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Journal of Comparative Physiology by :
Download or read book Journal of Comparative Physiology written by and published by . This book was released on 2002 with total page 592 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Sexual Size Dimorphism, Foraging Behavior, and Territorial Defense in a Predatory Bird, the Northern Harrier by : Ethan Joel Temeles
Download or read book Sexual Size Dimorphism, Foraging Behavior, and Territorial Defense in a Predatory Bird, the Northern Harrier written by Ethan Joel Temeles and published by . This book was released on 1987 with total page 202 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis The Effects of an Acoustically-orienting Parasitoid Fly (Ormia Ochracea) on Reproduction in the Field Cricket, Teleogryllus Oceanicus by : Gita Raman Kolluru
Download or read book The Effects of an Acoustically-orienting Parasitoid Fly (Ormia Ochracea) on Reproduction in the Field Cricket, Teleogryllus Oceanicus written by Gita Raman Kolluru and published by . This book was released on 1999 with total page 444 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Commencement Ceremony by : University of California, Davis. Graduate Division
Download or read book Commencement Ceremony written by University of California, Davis. Graduate Division and published by . This book was released on 1987 with total page 84 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis American Doctoral Dissertations by :
Download or read book American Doctoral Dissertations written by and published by . This book was released on 1987 with total page 532 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis The Evolution of Social Behaviour by : Michael Taborsky
Download or read book The Evolution of Social Behaviour written by Michael Taborsky and published by Cambridge University Press. This book was released on 2021-08-26 with total page 446 pages. Available in PDF, EPUB and Kindle. Book excerpt: How can the stunning diversity of social systems and behaviours seen in nature be explained? Drawing on social evolution theory, experimental evidence and studies conducted in the field, this book outlines the fundamental principles of social evolution underlying this phenomenal richness.To succeed in the competition for resources, organisms may either 'race' to be quicker than others, 'fight' for privileged access, or 'share' their efforts and gains. The authors show how the ecology and intrinsic attributes of organisms select for each of these strategies, and how a handful of straightforward concepts explain the evolution of successful decision rules in behavioural interactions, whether among members of the same or different species. With a broad focus ranging from microorganisms to humans, this is the first book to provide students and researchers with a comprehensive account of the evolution of sociality by natural selection.
Book Synopsis Biological & Agricultural Index by :
Download or read book Biological & Agricultural Index written by and published by . This book was released on 1989 with total page 2344 pages. Available in PDF, EPUB and Kindle. Book excerpt:
