Počet záznamů: 1
Hatchling sex ratio and female mating status in the great reed warbler, Acrocephalus arundinaceus (Aves, Passeriformes): further evidence for offspring sex ratio manipulation
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SYSNO ASEP 0384533 Druh ASEP J - Článek v odborném periodiku Zařazení RIV J - Článek v odborném periodiku Poddruh J Článek ve WOS Název Hatchling sex ratio and female mating status in the great reed warbler, Acrocephalus arundinaceus (Aves, Passeriformes): further evidence for offspring sex ratio manipulation Tvůrce(i) Trnka, A. (SK)
Prokop, P. (SK)
Kašová, M. (SK)
Sobeková, Karolina (UBO-W)
Kocian, Ľ. (SK)Celkový počet autorů 5 Zdroj.dok. Italian Journal of Zoology - ISSN 1125-0003
Roč. 79, č. 2 (2012), s. 212-217Poč.str. 6 s. Jazyk dok. eng - angličtina Země vyd. IT - Itálie Klíč. slova Great reed warbler ; sex ratio ; social polygyny Vědní obor RIV EG - Zoologie Institucionální podpora UBO-W - RVO:68081766 UT WOS 000305177500007 EID SCOPUS 84864327312 DOI 10.1080/11250003.2011.631945 Anotace Offspring sex in birds is maternally determined, thus females are expected to vary brood sex ratio adaptively in response to various environmental and/or genetic conditions preferring one sex to the other sex. However, recent studies provide controversial evidence showing mixed support for adaptive sex manipulation theory. One problem may lie in the fact that only sex ratios at fledging have been used in many of these studies, ignoring post-hatching sex-biased mortality. To validate these results, some authors call for replication of previous researches. Here we examined hatchling sex ratio variation in relation to female mating status in a local population of facultatively polygynous great reed warblers Acrocephalus arundinaceus in Central Europe. In agreement with results of previous works, we found that monogamous and primary females had a higher proportion of sons in their broods than secondary females. These results provide further evidence that great reed warbler females manipulate the sex ratio of their offspring in response to their social status. Pracoviště Ústav biologie obratlovců Kontakt Hana Slabáková, slabakova@ivb.cz, Tel.: 543 422 524 Rok sběru 2013
Počet záznamů: 1