Počet záznamů: 1
Age-related changes in sperm traits and evidence for aging costs of sperm production in a sexually promiscuous passerine
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SYSNO ASEP 0570382 Druh ASEP J - Článek v odborném periodiku Zařazení RIV J - Článek v odborném periodiku Poddruh J Článek ve WOS Název Age-related changes in sperm traits and evidence for aging costs of sperm production in a sexually promiscuous passerine Tvůrce(i) Míčková, Kristýna (UBO-W)
Tomášek, Oldřich (UBO-W) RID, ORCID, SAI
Jelínek, Václav (UBO-W) RID, SAI, ORCID
Šulc, Michal (UBO-W) RID, ORCID, SAI
Pazdera, L. (CZ)
Albrechtová, Jana (UBO-W) SAI
Albrecht, Tomáš (UBO-W) RID, SAI, ORCIDCelkový počet autorů 7 Číslo článku 1105596 Zdroj.dok. Frontiers in Ecology and Evolution. - : Frontiers Research Foundation - ISSN 2296-701X
Roč. 11, FEB (2023)Poč.str. 9 s. Jazyk dok. eng - angličtina Země vyd. CH - Švýcarsko Klíč. slova senescence ; post-copulatory sexual selection ; life-history trade-offs ; sperm morphology ; sperm velocity ; cloacal protuberance ; Hirundo rustica Vědní obor RIV EH - Ekologie - společenstva Obor OECD Zoology CEP GA19-22538S GA ČR - Grantová agentura ČR GA21-22160S GA ČR - Grantová agentura ČR GJ20-06110Y GA ČR - Grantová agentura ČR Způsob publikování Open access Institucionální podpora UBO-W - RVO:68081766 UT WOS 000939758100001 EID SCOPUS 85150078965 DOI 10.3389/fevo.2023.1105596 Anotace In many animal species, organismal performance declines with age in a process known as aging or senescence. Senescence typically leads to a deterioration of physiological functionality and can impact the development of primary sexual phenotypes. Sperm production is a complex and costly process that is sensitive to changes in individual physiological state, yet remarkably little is known about age-related changes in sperm performance and aging costs of sperm production. Here we use a non-linear generalized additive mixed models (GAMM) modelling to evaluate age-related changes in postcopulatory sexual traits in the European barn swallow (Hirundo rustica rustica), a relatively short lived sexually promiscuous passerine species, where male extra-pair fertilization success has been shown to increase with age. We confirmed a positive relationship between sperm midpiece length and sperm velocity in this species. Within-male changes in sperm morphology and sperm velocity were in general absent, with only sperm length decreasing linearly with increasing age, although this change was negligible compared to the overall variation in sperm size among males. In contrast, the cloacal protuberance (CP) size changed nonlinearly with age, with an initial increase between the first and third year of life followed by a plateau. The results further indicate the existence of a trade-off between investments in sperm production and survival as males with large CP tended to have a reduced lifespan. This seems consistent with the idea of expensive sperm production and survival aging costs associated with investments in post-copulatory traits in this sexually promiscuous species. Pracoviště Ústav biologie obratlovců Kontakt Hana Slabáková, slabakova@ivb.cz, Tel.: 543 422 524 Rok sběru 2024 Elektronická adresa https://www.frontiersin.org/articles/10.3389/fevo.2023.1105596/full
Počet záznamů: 1