Extra-pair paternity and the opportunity for sexual selection in a socially monogamous bird (Dendroica petechia)

1995 ◽  
Vol 37 (3) ◽  
pp. 179-188 ◽  
Author(s):  
Stephen M. Yezerinac ◽  
Patrick J. Weatherhead ◽  
Peter T. Boag
Keyword(s):  
Sexual Selection ◽  
Dendroica Petechia ◽  
Extra Pair Paternity ◽  
Socially Monogamous

scholarly journals Measuring Pre- and Post-Copulatory Sexual Selection and Their Interaction in Socially Monogamous Species with Extra-Pair Paternity

Cells ◽  
2021 ◽  
Vol 10 (3) ◽  
pp. 620
Author(s):  
Emily Rebecca Alison Cramer
Keyword(s):  
Sexual Selection ◽  
Fertilization Success ◽  
Direct Selection ◽  
Selection Gradients ◽  
Extra Pair Paternity ◽  
Male Trait ◽  
Monogamous Species ◽  
Socially Monogamous ◽  
Sperm Trait ◽  
Sperm Traits

When females copulate with multiple males, pre- and post-copulatory sexual selection may interact synergistically or in opposition. Studying this interaction in wild populations is complex and potentially biased, because copulation and fertilization success are often inferred from offspring parentage rather than being directly measured. Here, I simulated 15 species of socially monogamous birds with varying levels of extra-pair paternity, where I could independently cause a male secondary sexual trait to improve copulation success, and a sperm trait to improve fertilization success. By varying the degree of correlation between the male and sperm traits, I show that several common statistical approaches, including univariate selection gradients and paired t-tests comparing extra-pair males to the within-pair males they cuckolded, can give highly biased results for sperm traits. These tests should therefore be avoided for sperm traits in socially monogamous species with extra-pair paternity, unless the sperm trait is known to be uncorrelated with male trait(s) impacting copulation success. In contrast, multivariate selection analysis and a regression of the proportion of extra-pair brood(s) sired on the sperm trait of the extra-pair male (including only broods where the male sired ≥1 extra-pair offspring) were unbiased, and appear likely to be unbiased under a broad range of conditions for this mating system. In addition, I investigated whether the occurrence of pre-copulatory selection impacted the strength of post-copulatory selection, and vice versa. I found no evidence of an interaction under the conditions simulated, where the male trait impacted only copulation success and the sperm trait impacted only fertilization success. Instead, direct selection on each trait was independent of whether the other trait was under selection. Although pre- and post-copulatory selection strength was independent, selection on the two traits was positively correlated across species because selection on both traits increased with the frequency of extra-pair copulations in these socially monogamous species.

scholarly journals Sexual selection favours male parental care, when females can choose

2011 ◽  
Vol 279 (1734) ◽  
pp. 1784-1790 ◽  
Author(s):  
Suzanne H. Alonzo
Keyword(s):  
Sexual Selection ◽  
Parental Care ◽  
Female Choice ◽  
Mating Success ◽  
Current Theory ◽  
Sharp Contrast ◽  
Recent Theory ◽  
Extra Pair Paternity ◽  
Female Promiscuity ◽  
Male Care

Explaining the evolution of male care has proved difficult. Recent theory predicts that female promiscuity and sexual selection on males inherently disfavour male care. In sharp contrast to these expectations, male-only care is often found in species with high extra-pair paternity and striking variation in mating success, where current theory predicts female-only care. Using a model that examines the coevolution of male care, female care and female choice; I show that inter-sexual selection can drive the evolution of male care when females are able to bias mating or paternity towards parental males. Surprisingly, female choice for parental males allows male care to evolve despite low relatedness between the male and the offspring in his care. These results imply that predicting how sexual selection affects parental care evolution will require further understanding of why females, in many species, either do not prefer or cannot favour males that provide care.

scholarly journals Polygyny and extra-pair paternity enhance the opportunity for sexual selection in blue tits

2010 ◽  
Vol 65 (4) ◽  
pp. 741-752 ◽  
Author(s):  
Oscar Vedder ◽  
Jan Komdeur ◽  
Marco van der Velde ◽  
Elske Schut ◽  
Michael J. L. Magrath
Keyword(s):  
Sexual Selection ◽  
Extra Pair Paternity ◽  
Blue Tits

scholarly journals Determining the level of extra-pair paternity in yellow-bellied prinias, a socially monogamous passerine

2020 ◽  
Vol 41 (6) ◽  
pp. 1-8
Author(s):  
Zhi-Feng Ding ◽  
◽  
Chun-Lan Zhang ◽  
Wen-Sui Zhang ◽  
Qian-Min Yuan ◽  
...  
Keyword(s):  
Extra Pair Paternity ◽  
Socially Monogamous

Extra-pair copulations in common murres I: a mate attraction strategy?

Behaviour ◽  
2006 ◽  
Vol 143 (10) ◽  
pp. 1241-1262 ◽  
Author(s):  
Maureen L. Cameron-Macmillan ◽  
Carolyn J. Walsh ◽  
Sabina I. Wilhelm ◽  
Anne E. Storey
Keyword(s):  
Reproductive Success ◽  
Uria Aalge ◽  
Success Rates ◽  
High Quality ◽  
Mate Attraction ◽  
Extra Pair Paternity ◽  
Socially Monogamous ◽  
Common Murres ◽  
Breeding Seasons

AbstractWe investigated the behavioural context of pair (PCs) and extra-pair copulations (EPCs) in individually-marked socially-monogamous, long-lived seabirds, common murres (Uria aalge). Since forced EPCs have been documented for this species, we first examined which sex controls successful (cloacal contact achieved) copulation. The finding that all successful copulations required female cooperation and crouching suggested that benefits of successful EPCs accrue primarily to females. In a group of murres for which paternity analyses indicated no extra-pair paternity, behavioural observations over five breeding seasons showed that individual females engaged in EPCs primarily under two circumstances: (1) before they were reunited with their mates, and (2) when they were in the process of re-pairing. There was no such relationship between EPCs and re-pairing for males. Successful EPCs occurred with familiar neighboring males of apparent high quality, indicated by their high ledge attendance and prior reproductive success rates. Thus, EPCs may be used by females to attract potential high quality mates in situations where females are attempting to re-pair as a result of divorce or mate death.

Effects of heterozygosity and MHC diversity on patterns of extra-pair paternity in the socially monogamous scarlet rosefinch

2014 ◽  
Vol 69 (3) ◽  
pp. 459-469 ◽  
Author(s):  
J. C. Winternitz ◽  
M. Promerova ◽  
R. Polakova ◽  
M. Vinker ◽  
J. Schnitzer ◽  
...  
Keyword(s):  
Extra Pair Paternity ◽  
Socially Monogamous ◽  
Mhc Diversity
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