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Polyandrous females provide sons wit...

Egan, Andrea Lynne.

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Polyandrous females provide sons with more competitive sperm: Support for the sexy-sperm hypothesis in the rattlebox moth (Utetheisa ornatrix).

紀錄類型:	書目-語言資料,印刷品 : Monograph/item
正題名/作者:	Polyandrous females provide sons with more competitive sperm: Support for the sexy-sperm hypothesis in the rattlebox moth (Utetheisa ornatrix)./
作者:	Egan, Andrea Lynne.
面頁冊數:	66 p.
附註:	Source: Masters Abstracts International, Volume: 52-06.
Contained By:	Masters Abstracts International52-06(E).
標題:	Biology, General. -
電子資源:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=1554782
ISBN:	9781303860515

Polyandrous females provide sons with more competitive sperm: Support for the sexy-sperm hypothesis in the rattlebox moth (Utetheisa ornatrix).
Egan, Andrea Lynne.

Polyandrous females provide sons with more competitive sperm: Support for the sexy-sperm hypothesis in the rattlebox moth (Utetheisa ornatrix). - 66 p.

Source: Masters Abstracts International, Volume: 52-06.

Thesis (M.S.)--Villanova University, 2014.

In regards to sexual selection, the prevailing paradigm is that males maximize fitness by taking as many mates as possible whereas females maximize fitness by choosing a small number of high-quality mates. Given the costs associated with mating, why and how has female polyandry evolved? Utetheisa ornatrix are well-suited for studying multiple mating in females because females are highly polyandrous over their lifespan, with each mate delivering a substantial spermatophore with genetic and non-genetic material. To help explain the prevalence of polyandry, I tested the "sexy-sperm" hypothesis, which posits that females that mate multiply gain by producing sons with more-competitive sperm, a trait inherited from their father. I mated females to males with mothers of varying mating history and found that in 511 offspring across 17 families, the male whose mother was multiply mated sired 75.5% of all total offspring and that mating order did not affect siring success.

ISBN: 9781303860515Subjects--Topical Terms:

1018625
Biology, General.

Polyandrous females provide sons with more competitive sperm: Support for the sexy-sperm hypothesis in the rattlebox moth (Utetheisa ornatrix).
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