دورية أكاديمية
Small-bodied males invest in larger testes when highly ornamented.
| العنوان: | Small-bodied males invest in larger testes when highly ornamented. |
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| المؤلفون: | de Souza AR; Departamento de Biologia, Faculdade de Filosofia Ciências e Letras de Ribeirão Preto, Universidade de São Paulo, Ribeirão Preto, Brazil., Polo JLL; Departamento de Biologia, Faculdade de Filosofia Ciências e Letras de Ribeirão Preto, Universidade de São Paulo, Ribeirão Preto, Brazil., Santos EF; Departamento de Zoologia e Botânica, Instituto de Biociências, Letras e Ciências Exatas, Universidade Estadual Paulista 'Júlio de Mesquita Filho,' São José do Rio Preto, Brazil., Nascimento FSD; Departamento de Biologia, Faculdade de Filosofia Ciências e Letras de Ribeirão Preto, Universidade de São Paulo, Ribeirão Preto, Brazil., Rantala MJ; Department of Biology, University of Turku, Turku, Finland. |
| المصدر: | Journal of evolutionary biology [J Evol Biol] 2024 May 06; Vol. 37 (5), pp. 548-554. |
| نوع المنشور: | Journal Article; Research Support, Non-U.S. Gov't |
| اللغة: | English |
| بيانات الدورية: | Publisher: Oxford University Press Country of Publication: England NLM ID: 8809954 Publication Model: Print 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: | Testis*/anatomy & histology , Body Size* , Wasps*/physiology , Wasps*/anatomy & histology, Animals ; Male ; Female ; Organ Size ; Sexual Behavior, Animal/physiology |
| مستخلص: | Sperm competition and male mating rate are two non-mutually exclusive key evolutionary pressures selecting for larger testes within and across animal taxa. A few studies have tried to test the role of mating rate in the absence of sperm competition. Under the mating rate hypothesis, particular phenotypes of a given population that are expected to gain more mates (e.g., more ornamented males) are expected to make higher investments in testes size (a proxy for sperm production). We test this prediction in Polistes simillimus, a neotropical paper wasp in which females are single mated (no sperm competition) and males can mate with multiple partners. Testes size was predicted by body size (positive association), sexual ornamentation (negative association), and their interaction (among small males, testes size was positively related to ornamentation, but the opposite pattern was observed among large males). We propose that small-bodied well-ornamented males may face the highest risk of sperm depletion. Small-bodied males make relatively higher investment in testes size when highly ornamented. This strategy might be less profitable to large males, as they have overall larger testes. Our results provide strong evidence for the mating rate hypothesis. (© The Author(s) 2024. Published by Oxford University Press on behalf of the European Society of Evolutionary Biology. All rights reserved. For commercial re-use, please contact reprints@oup.com for reprints and translation rights for reprints. All other permissions can be obtained through our RightsLink service via the Permissions link on the article page on our site—for further information please contact journals.permissions@oup.com.) |
| معلومات مُعتمدة: | 2020/14464-2 Fundação de Amparo à Pesquisa do Estado de São Paulo |
| فهرسة مساهمة: | Keywords: body size; mating rate hypothesis; sexual ornamentation; sperm depletion; testes size |
| تواريخ الأحداث: | Date Created: 20240410 Date Completed: 20240506 Latest Revision: 20240506 |
| رمز التحديث: | 20240506 |
| DOI: | 10.1093/jeb/voae044 |
| PMID: | 38596874 |
| قاعدة البيانات: | MEDLINE |
| تدمد: | 1420-9101 |
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| DOI: | 10.1093/jeb/voae044 |