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Typ záznamu * :	článek v odborném periodiku (J)
Domácí pracoviště * :	Katedra biologie a ekologie (31700)
Název * :	Sex ratios at emergence in populations of Central European species of Gomphidae (Anisoptera)
Citace :	Dolný, A., Drozd, P., Petříková, M. a Harabiš, F. Sex ratios at emergence in populations of Central European species of Gomphidae (Anisoptera). ODONATOLOGICA. 2010, roč. 39, č. 39, s. 217-224. ISSN 0375-0183.

Podnázev :
Rok * :	2010
Obor * :	Ekologie - společenstva
Kód ISSN * :	0375-0183
Oficiální název periodika * :	ODONATOLOGICA
Stát vydavatele periodika * :	Nizozemsko
Svazek periodika * :	39
Číslo periodika v rámci svazku * :	3
Číslo článku :
Ročník :	39
Počet stran článku * :	8
Strana od * :	217
Strana do * :	224
Kód UT WoS :
EID :
Poddruh recenzovaného článku :	Článek v impaktovaném časopise (Jimp)

Klíčová slova anglicky * :	Sex ratio; Odonata; dragonflies; Gomphidae; proandry; environmental impact
Popis v původním jazyce * :	At emergence (the final instar, F-0) a strong bias for females was observed within local populations of Gomphus flavipes (Charpentier), Gomphus vulgatissimus (Linné) and Ophiogomphus cecilia (Fourcroy) (Anisoptera: Gomphidae). Males represented 45.6% of all specimens (43.5% in the first and 46.4% in the second research year). The results of the ?2 test supported the female-biased sex ratio in populations of all three species. The sex ratio in populations varied significantly in time during the emergence season, caused by the fact that all three species demonstrated a significant protandric trend. The greatest changes in sex ratio during the emergence season were demonstrated by G. flavipes (coefficient value -0.007542); the smallest were recorded in G. vulgatissimus (CV -0.008617). Environmental impact did not prove to act be a factor which has an effect on the sex ratio of species with phenotypical determination of sex.
Popis v anglickém jazyce * :	At emergence (the final instar, F-0) a strong bias for females was observed within local populations of Gomphus flavipes (Charpentier), Gomphus vulgatissimus (Linné) and Ophiogomphus cecilia (Fourcroy) (Anisoptera: Gomphidae). Males represented 45.6% of all specimens (43.5% in the first and 46.4% in the second research year). The results of the ?2 test supported the female-biased sex ratio in populations of all three species. The sex ratio in populations varied significantly in time during the emergence season, caused by the fact that all three species demonstrated a significant protandric trend. The greatest changes in sex ratio during the emergence season were demonstrated by G. flavipes (coefficient value -0.007542); the smallest were recorded in G. vulgatissimus (CV -0.008617). Environmental impact did not prove to act be a factor which has an effect on the sex ratio of species with phenotypical determination of sex.

Typ zdroje financování výsledku * :

Projekty CEP/Záměry CEZ

Seznam projektů :

ID Projektu	Název projektu

Seznam ohlasů :

Ohlas

R01:	RIV/61988987:17310/10:A1100YNH