Do the benefits of polyandry scale with outbreeding?
Burdfield-Steel, E., Auty, S., & Shuker, D. M. (2015). Do the benefits of polyandry scale with outbreeding?. Behavioral Ecology, 26(5), 1423-1431. https://doi.org/10.1093/beheco/arv103
Published inBehavioral Ecology
DisciplineEkologia ja evoluutiobiologiaBiologisten vuorovaikutusten huippututkimusyksikköEcology and Evolutionary BiologyCentre of Excellence in Biological Interactions Research
© The Author 2015. Published by Oxford University Press on behalf of the International Society for Behavioral Ecology. This is an Open Access article distributed under the terms of the Creative Commons Attribution License.
There have been many potential explanations put forward as to why polyandry often persists despite the multiple costs it can inflict on females. One such explanation is avoidance of costs associated with mating with genetically incompatible males. Genetic incompatibility can be thought of as a spectrum from individuals that are genetically too similar (inbreeding) to those that are too dissimilar (outbreeding or hybridization). Here we look for evidence that the level of outbreeding influences the benefits of polyandry in the seed bug Lygaeus equestris. Our system allows us to test for benefits of polyandry at levels of genetic similarity ranging from full siblings to heterospecifics, both in terms of egg production and hatching success. We found that while outbreeding level appeared to have no effect on fitness for intraspecific matings, and polyandry did not appear to result in any increase in fertility or fecundity, hybridization with a closely related species, Lygaeus simulans, carried considerable fitness costs. However, these costs could be rescued with a single mating to a conspecific. Thus, polyandry may be beneficial in populations that co-occur with closely related species and where there is reproductive interference. However, within-species genetic incompatibility is unlikely to be the driving force behind polyandry in this species. Furthermore, the mechanism underlying this rescue of fertility remains unclear as manipulation of male cuticular hydrocarbon profile, a possible mechanism by which females can assess male identity, had no effect on female offspring production. ...
PublisherOxford University Press; International Society for Behavioral Ecology
Publication in research information system
MetadataShow full item record
Except where otherwise noted, this item's license is described as © The Author 2015. Published by Oxford University Press on behalf of the International Society for Behavioral Ecology. This is an Open Access article distributed under the terms of the Creative Commons Attribution License.
Showing items with similar title or keywords.
Timing of reproductive effort as an alternative mating strategy in young black grouse (Tetrao tetrix) males Nieminen, Eini (2014)Seksuaalivalinta aiheuttaa yksilöiden välille kilpailua parittelukumppaneista, minkä johdosta osa yksilöistä lisääntyy toisia enemmän. Elinkiertoteorian mukaan yksilöt eivät niukkojen resurssien vuoksi pysty tehokkaasti ...
Fox, Rebecca J.; Fromhage, Lutz; Jennions, Michael D. (2019)In a rapidly changing environment, does sexual selection on males elevate a population's reproductive output? If so, does phenotypic plasticity enhance or diminish any such effect? We outline two routes by which sexual ...
N, Colegrave,; Kotiaho, Janne Sakari; L., Tomkins, J. (2002)Sexual selection for good genes is based on the assumption that ‘good genes’ are equally good for all females. In contrast, selection for genetic compatibility is based on the assumption that offspring viability will ...
Klemme, Ines (University of Jyväskylä, 2006)Miksi metsämyyränaaraalla on useampia rakastajia, on mielenkiintoinen kysymys evoluutioekologiassa. Yksi koiras riittäisi hyvin hedelmöittämään kaikki naaraan munasolut, ja useamman koiraan kanssa jatkuvat lemmenleikit ...
Viability selection creates negative heterozygosity-fitness correlations in female Black Grouse Lyrurus tetrix Soulsbury, Carl; Lebigre, Christophe (Springer, 2018)There is widespread interest in the relationship between individual genetic diversity and fitness–related traits (heterozygosity–fitness correlations; HFCs). Most studies have found weak continuous increases of fitness with ...