Extra-pair paternity in tree swallows: why do females mate with more than one male?

1994 ◽  
Vol 35 (4) ◽  
pp. 273-281 ◽  
Author(s):  
P. O. Dunn ◽  
Raleigh J. Robertson ◽  
Denise Michaud-Freeman ◽  
Peter T. Boag
Keyword(s):  
Tree Swallows ◽  
Extra Pair Paternity

Experimentally altering pre-breeding sex steroids reduces extra-pair paternity in female tree swallows

Ethology ◽  
2018 ◽  
Vol 124 (6) ◽  
pp. 410-422 ◽  
Author(s):  
Lisha L. Berzins ◽  
J. Mark Shrimpton ◽  
Russell D. Dawson
Keyword(s):  
Sex Steroids ◽  
Tree Swallows ◽  
Extra Pair Paternity ◽  
Female Tree

Extra-pair paternity in monogamous tree swallows

1993 ◽  
Vol 45 (2) ◽  
pp. 213-229 ◽  
Author(s):  
Jan T. Lifjeld ◽  
Peter O. Dunn ◽  
Raleigh J. Robertson ◽  
Peter T. Boag
Keyword(s):  
Tree Swallows ◽  
Extra Pair Paternity

Extra-pair paternity in polygynous tree swallows

1993 ◽  
Vol 45 (2) ◽  
pp. 231-239 ◽  
Author(s):  
Peter O. Dunn ◽  
Raleigh J. Robertson
Keyword(s):  
Tree Swallows ◽  
Extra Pair Paternity

High levels of extra-pair paternity in an isolated, low-density, island population of tree swallows (Tachycineta bicolor)

2001 ◽  
Vol 10 (5) ◽  
pp. 1301-1308 ◽  
Author(s):  
K. F. Conrad ◽  
P. V. Johnston ◽  
C. Crossman ◽  
B. Kempenaers ◽  
R. J. Robertson ◽  
...  
Keyword(s):  
Tachycineta Bicolor ◽  
Island Population ◽  
Low Density ◽  
Tree Swallows ◽  
Extra Pair Paternity

A test of the genetic compatibility hypothesis with tree swallows, Tachycineta bicolor

2005 ◽  
Vol 83 (7) ◽  
pp. 955-961 ◽  
Author(s):  
Colleen A Barber ◽  
Mandy J Edwards ◽  
Raleigh J Robertson
Keyword(s):  
Genetic Similarity ◽  
Hatching Success ◽  
Negative Relationship ◽  
Tachycineta Bicolor ◽  
Tree Swallow ◽  
Tree Swallows ◽  
Genetic Compatibility ◽  
Extra Pair Paternity ◽  
Socially Monogamous ◽  
Compatibility Hypothesis

The genetic compatibility hypothesis proposes that females should mate with genetically dissimilar males whose alleles best complement their own, resulting in greater offspring heterozygosity. It predicts that genetic similarity between social pairs will be positively related to the proportion of extra-pair young within broods and negatively related to hatching success. We tested these two predictions in tree swallow (Tachycineta bicolor (Vieillot, 1808)) pairs (n = 72). Tree swallows have one of the highest rates of extra-pair paternity among socially monogamous passerines. Contrary to expectation, genetic similarity of a social pair, as measured by the band-sharing coefficient (estimated from multilocus DNA fingerprints), tended to be negatively related to the proportion of extra-pair young within broods, but failed to predict hatching success. When including only the subset of nests for which we had complete genotyping data (n = 37), we again found a significant negative relationship between genetic similarity and the proportion of extra-pair young within broods. Genetic similarity did not differ significantly between nests with and without extra-pair young, nor did it differ between nests with total versus partial hatching success. Overall, our data do not support the genetic compatibility hypothesis in tree swallows, and in fact show some evidence against it.

Extra-pair paternity in tree swallows: why do females mate with more than one male?

1994 ◽  
Vol 35 (4) ◽  
pp. 273-281 ◽  
Author(s):  
Peter O. Dunn ◽  
Raleigh J. Robertson ◽  
Denise Michaud-Freeman ◽  
Peter T. Boag
Keyword(s):  
Tree Swallows ◽  
Extra Pair Paternity

Does experimentally altered plumage brightness influence extra-pair mating success in female Tree Swallows (Tachycineta bicolor)?

2020 ◽  
Vol 98 (1) ◽  
pp. 55-61
Author(s):  
Lisha L. Berzins ◽  
Russell D. Dawson
Keyword(s):  
Mating Success ◽  
Tachycineta Bicolor ◽  
Competitive Interactions ◽  
Tree Swallows ◽  
Extra Pair Paternity ◽  
Female Tree ◽  
Pair Mating ◽  
And Function ◽  
Ornamental Traits ◽  
Extra Pair Mating

Recent empirical evidence suggests that ornamental traits displayed by female birds may reflect aspects of their quality, and function during competitive interactions and (or) social mate attraction; however, less is known about how such traits influence extra-pair paternity. In Tree Swallows (Tachycineta bicolor (Vieillot, 1808)), plumage brightness of females signals their quality and may be related to extra-pair paternity if it enables them to invade the territories of other females to seek extra-pair copulations and (or) if potential extra-pair mates perceive their plumage brightness as attractive. Therefore, to examine whether the plumage brightness displayed by females influence rates of extra-pair paternity and the number of sires per brood, we experimentally enhanced and reduced the plumage brightness of females relative to controls. Our results showed that plumage brightness treatment of the female did not influence the number of extra-pair offspring in nests or the likelihood of a brood containing extra-pair offspring. Additionally, the number of extra-pair males siring offspring within the broods of females did not differ by plumage brightness treatment. Although extra-pair paternity has been shown to be beneficial for female Tree Swallows, our results suggest that plumage brightness of females does not influence their ability to engage in extra-pair mating.

The high frequency of extra-pair paternity in tree swallows is not an artifact of nestboxes

1996 ◽  
Vol 38 (6) ◽  
pp. 425-430 ◽  
Author(s):  
C. A. Barber ◽  
Raleigh J. Robertson ◽  
Peter T. Boag
Keyword(s):  
High Frequency ◽  
Tree Swallows ◽  
Extra Pair Paternity

Experimental increase in female mass during the fertile phase leads to enhanced extra-pair paternity in pied flycatchers Ficedula hypoleuca

2019 ◽  
Author(s):  
Mireia Plaza ◽  
Alejandro Cantarero ◽  
Juan Moreno
Keyword(s):  
Negative Relationship ◽  
Ficedula Hypoleuca ◽  
Egg Laying ◽  
Female Dominance ◽  
Laying Date ◽  
Control Group ◽  
Wing Loading ◽  
Potential Fecundity ◽  
Fertile Phase ◽  
Extra Pair Paternity

Female mass in most altricial birds reaches its maximum during breeding at egg-laying, which coincides temporally with the fertile phase when extra-pair paternity (EPP) is determined. Higher mass at laying may have two different effects on EPP intensity. On the one hand, it would lead to increased wing loading (body mass/wing area), which may impair flight efficiency and thereby reduce female’s capacity to resist unwanted extra-pair male approaches (sexual conflict hypothesis). On the other hand, it would enhance female condition, favouring her capacity to evade mate-guarding and to search for extra-pair mates (female choice hypothesis). In both cases, higher female mass at laying may lead to enhanced EPP. To test this prediction, we reduced nest building effort by adding a completely constructed nest in an experimental group of female pied flycatchers (Ficedula hypoleuca). Our treatment caused an increase in mass and thereby wing loading and this was translated into a significantly higher EPP in the manipulated group compared with the control group as expected. There was also a significant negative relationship between EPP and laying date and the extent of the white wing patch, an index of female dominance. More body reserves at laying mean not only a higher potential fecundity but a higher level of EPP as well. This interaction had not previously received due attention but should be considered in future studies of avian breeding strategies.

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