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dc.contributor.authorBrattli, Magnus B.
dc.contributor.authorEgeland, Torvald B.
dc.contributor.authorNordeide, Jarle Tryti
dc.contributor.authorFolstad, Ivar
dc.date.accessioned2018-08-13T11:23:12Z
dc.date.available2018-08-13T11:23:12Z
dc.date.issued2018-07-20
dc.description.abstractA mismatch in synchrony between male and female gamete release in external ferti - lizers can result in reduced or failed fertilization, sperm competition, and reduced paternity. In Arctic charr ( Salvelinus alpinus ), males can adopt either a guard or sneak tactic resulting in both pre- and postcopulatory competition between males with al - ternative reproduction tactics. Here, spawning behavior of free- living Arctic charr was video- recorded, and their reproductive behavior was analyzed. From evaluating 157 spawning events, we observed that females mainly spawned with a guarding male and that the female and the guarding male synchronized timing of gamete re - lease under sperm competition. Although sneakers spawned with higher synchrony than the guarding male in single- male spawning events, the average sneaker released his milt less synchronized with the female than the guarding male under sperm com - petition. Approximately 50% of the recorded spawning events occurred under sperm competition, where each event included an average of 2.7 males. Additionally, sneak - ers were more exposed to sperm competition than guarding males. An influx of males, in close proximity to the female, occurred during the behavioral sequences leading up to egg release, but this influx seemed not dependent on egg release, sug - gesting that something else than gonadal product attracts sneaker males to the spawning female. Just before and during the actual release of gametes, the spawning couple vibrates their bodies in close contact and it seems likely that this vibrational communication between the spawning couple, which results in a larger amplitude sound wave than seen under regular courting, reveals time of gamete release to sneaker males. Thus, vibrational communication may enable synchrony between the guarding male and the female, and this might be traded against the cost of higher detectability from surrounding sneaker males, eavesdropping in close proximity.en_US
dc.descriptionSource at <a href=https://doi.org/10.1002/ece3.4277> https://doi.org/10.1002/ece3.4277</a>. Accepted manuscript version, licensed <a href=http://creativecommons.org/licenses/by-nc-nd/4.0/> CC BY-NC-ND 4.0.</a>en_US
dc.identifier.citationBrattli, M.B., Egeland, T.B. Nordeide, J.T. & Folstad, I. (2018). Spawning behavior of Arctic charr (Salvelinus alpinus): Spawning synchrony, vibrational communication, and mate guarding. Ecology and Evolution, 1-12. https://doi.org/10.1002/ece3.4277en_US
dc.identifier.cristinIDFRIDAID 1598209
dc.identifier.doi10.1002/ece3.4277
dc.identifier.issn2045-7758
dc.identifier.urihttps://hdl.handle.net/10037/13381
dc.language.isoengen_US
dc.publisherWiley Open Accessen_US
dc.relation.journalEcology and Evolution
dc.rights.accessRightsopenAccessen_US
dc.subjectVDP::Matematikk og Naturvitenskap: 400::Zoologiske og botaniske fag: 480::Økologi: 488en_US
dc.subjectVDP::Mathematics and natural science: 400::Zoology and botany: 480::Ecology: 488en_US
dc.subjectfemale choiceen_US
dc.subjectmate guardingen_US
dc.subjectreproductive behavioren_US
dc.subjectspawning synchronyen_US
dc.subjectsperm competitionen_US
dc.subjectvibrational communicationen_US
dc.titleSpawning behavior of Arctic charr (Salvelinus alpinus): Spawning synchrony, vibrational communication, and mate guardingen_US
dc.typeJournal articleen_US
dc.typeTidsskriftartikkelen_US
dc.typePeer revieweden_US


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