مورد إلكتروني
Pre-dawn infidelity: females control extra-pair mating in superb fairy-wrens
| العنوان: | Pre-dawn infidelity: females control extra-pair mating in superb fairy-wrens |
|---|---|
| المصدر: | Proceedings of the Royal Society of London Series B: Biological Sciences |
| بيانات النشر: | Royal Society of London 2000 |
| تفاصيل مُضافة: | Double, Michael Cockburn, Andrew |
| نوع الوثيقة: | Electronic Resource |
| مستخلص: | Despite great interest in the use of extra-pair mating as a tool for examining female choice and intersexual selection, the underlying assumption of female control has proved difficult to verify empirically. We combined microsatellite genotyping and radiotelemetry of fertile females in order to investigate mate choice in superb fairy-wrens Malurus cyaneus, the bird with the highest known rate of extra-pair fertilization. All five females radio tracked during the peak of fertility, two to four days before the first egg is laid, undertook pre-dawn forays. All extra-pair young produced by the female were sired by a male visited during their forays, indicating that females control extra-pair fertilizations. In a larger sample of paternity data, some broods were sired by two extra-group males. In virtually all the cases the territory of the two sires were on an identical linear trajectory from the female's territory. This again suggests that extra-group paternity in superb fairy-wrens is directly linked to female extra-territorial forays. In other species mixed paternity has been taken to indicate that females attempt to insure against infertile pairings or try to maximize the genetic diversity of their brood. However, in fairy-wrens the likelihood of multiple extra-group paternity increased greatly as females traversed more territories in order to mate, perhaps suggesting that females which foray further are more likely to have difficulties locating the preferred male. |
| مصطلحات الفهرس: | Keywords: microsatellite DNA; extra-pair copulation; female behavior; mate choice; passerine; article; bird; female; fertilization; genetics; genotype; infertility; mating; nonhuman; paternity; priority journal; sexual behavior; telemetry; Animals; Birds; Choice Be Avian mating systems; Extra-pair copulation; Malurus cyaneus; Mate choice; Sexual selection, Journal article |
| URL: | |
| الإتاحة: | Open access content. Open access content |
| أرقام أخرى: | AUANP oai:openresearch-repository.anu.edu.au:1885/91299 0962-8452 1291818755 |
| المصدر المساهم: | AUSTRALIAN NAT UNIV - PRINT REPOSITORY From OAIster®, provided by the OCLC Cooperative. |
| رقم الأكسشن: | edsoai.on1291818755 |
| قاعدة البيانات: | OAIster |
| الوصف غير متاح. |