Subtitle:

Acta Ornithologica, vol. 39, no. 1 ; Niska częstotliwość występowania poligynii u rokitniczki na rozlewiskach Nidy

Contributor:

Museum and Institute of Zoology, Polish Academy of Sciences

Publisher:

Museum & Institute of Zoology

Place of publishing:

Warszawa

Description:

Bibliogr. s. 85-86 ; S. [83]-86 : il. ; 27 cm ; Streszcz. pol. Nazwy taksonów także w jęz. łac.

Type of object:

Czasopismo/Artykuł

Abstract:

In 1996-2002, 227 breeding attempts were studied in a colour-ringed Sedge Warbler population. Although 11% of males in this population resumed singing in order to mate with another female after their first females had laid eggs, only two polygynous males (i.e. 0.6%) were recorded. This is a very low value in comparison to other studies (ca. 7% on average). The low level of polygyny is attributable to the low food abundance in a natural floodplain, as the nestlings in this population were fed on predominantly small food items. Both polygynous males were recorded in 2002; this was unusual, because flooding in early June (around the hatching date) destroyed most of the broods. This could have led to an influx of new females into the study area, a change in the operational sex ratio, and new mating opportunities for males.

Relation:

Acta Ornithologica

Volume:

39

Issue:

1

Start page:

83

End page:

86

Detailed Resource Type:

Czasopismo

Format:

text/xml

Resource Identifier:

oai:rcin.org.pl:55513

Source:

MiIZ PAN, sygn. patrz sygn. czas. P.257-39-1 ; MiIZ PAN, sygn. patrz sygn. czas. P.4568-39-1 ; click here to follow the link

Language:

eng

Rights:

Prawa zastrzeżone - dostęp nieograniczony

Terms of use:

Zasób chroniony prawem autorskim. Korzystanie dozwolone w zakresie określonym przez przepisy o dozwolonym użytku.

Digitizing institution:

Muzeum i Instytut Zoologii Polskiej Akademii Nauk

Original in:

Biblioteka Muzeum i Instytutu Zoologii PAN

Access:

Otwarty