دورية أكاديمية
The form of sexual selection arising from male-male competition depends on the presence of females in the social environment.
| العنوان: | The form of sexual selection arising from male-male competition depends on the presence of females in the social environment. |
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| المؤلفون: | Procter DS; Centre for Ecology & Conservation, College of Life and Environmental Sciences, University of Exeter, Penryn, UK., Moore AJ, Miller CW |
| المصدر: | Journal of evolutionary biology [J Evol Biol] 2012 May; Vol. 25 (5), pp. 803-12. Date of Electronic Publication: 2012 Mar 09. |
| نوع المنشور: | Journal Article; Research Support, Non-U.S. Gov't; Research Support, U.S. Gov't, Non-P.H.S. |
| اللغة: | English |
| بيانات الدورية: | Publisher: Oxford University Press Country of Publication: Switzerland NLM ID: 8809954 Publication Model: Print-Electronic Cited Medium: Internet ISSN: 1420-9101 (Electronic) Linking ISSN: 1010061X NLM ISO Abbreviation: J Evol Biol Subsets: MEDLINE |
| أسماء مطبوعة: | Publication: January 2024- : [Oxford] : Oxford University Press Original Publication: [Basel, Switzerland : Birkhäuser Verlag, c1988- |
| مواضيع طبية MeSH: | Social Environment*, Competitive Behavior/*physiology , Heteroptera/*physiology , Mating Preference, Animal/*physiology, Animal Structures/physiology ; Animals ; Body Size ; Female ; Logistic Models ; Male ; Principal Component Analysis ; Sex Factors ; Territoriality |
| مستخلص: | Sexual selection arises from social interactions, and if social environments vary so too should sexual selection. For example, male-male competition often occurs either in the presence or in the absence of females, and such changes in the social environment could affect the form and strength of sexual selection. Here we examine how the presence of a female influences selection arising from male-male competition in a leaf-footed cactus bug, Narnia femorata, which has a resource defence mating system. Males compete for territories on cacti because females lay eggs on the cactus plants. Females are not always present when this competition first occurs; however, the presence or absence of the female matters. We found that both the form and strength of selection on male traits, those traits that influenced success in intrasexual competition, depended on the social context. When a female was not present, male size and the area of the sexually dimorphic hind legs was only marginally important to winning a contest. However, males with larger overall size and leg area were more likely to win in the presence of a female. There was also positive quadratic selection on these traits when a female was present with both the largest and the smallest males winning. The implication is unexpected alternative strategies when females are present. Our results support the notion that sexual selection should be studied under all relevant social contexts. (© 2012 The Authors. Journal of Evolutionary Biology © 2012 European Society For Evolutionary Biology.) |
| تواريخ الأحداث: | Date Created: 20120313 Date Completed: 20120725 Latest Revision: 20120410 |
| رمز التحديث: | 20221213 |
| DOI: | 10.1111/j.1420-9101.2012.02485.x |
| PMID: | 22404372 |
| قاعدة البيانات: | MEDLINE |
Full Text Finder | تدمد: | 1420-9101 |
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| DOI: | 10.1111/j.1420-9101.2012.02485.x |