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Object

Short notes: Prolonged incubation of non-viable eggs in the Bearded Vulture Gypaetus barbatus
This publication is protected by copyright. Access to its digital version is possible on computer terminals in the institution that shares it.
This publication is protected by copyright. Access to its digital version is possible on computer terminals in the institution that shares it.

Title: Short notes: Prolonged incubation of non-viable eggs in the Bearded Vulture Gypaetus barbatus ; Prolonged incubation of non-viable eggs in the Bearded Vulture Gypaetus barbatus

Creator:

Margalida, Antoni ; Bertran, Joan

Date issued/created:

2006

Resource type:

Tekst

Subtitle:

Inkubowanie martwych jaj u orłosępów brodatych ; Short notes

Contributor:

Museum and Institute of Zoology, Polish Academy of Sciences

Publisher:

Museum and Institute of Zoology, Polish Academy of Sciences

Place of publishing:

Warsaw

Description:

pg(s) 181–184

Type of object:

Czasopismo/Artykuł

Abstract:

We present the frequency and duration of prolonged incubation in the Bearded Vulture and test different hypotheses on the possible adaptive significance of this behaviour. The mean and median prolonged incubation lasted 29 and 25 days respectively (n = 10), i.e., 54% and 46% respectively longer than the average incubation period. There was a negative correlation between the duration of prolonged incubation and the egg-laying date: prolonged incubation lasted longer in earlier clutches than in later ones, and territories with many breeding attempts showed short incubation prolongations. On the other hand, no correlation was found between the duration of prolonged incubation and productivity or breeding success. The results suggest that more experienced birds, which occupy higher quality territories and lay their eggs earlier, prolonged their incubation to a greater extent. Although prolonged incubation may constitute an example of adaptive behaviour, the extensive periods documented in some cases do not appear to support this assumption.

Relation:

Acta Ornithologica

Volume:

41

Issue:

2

Start page:

181

End page:

184

Detailed Resource Type:

Czasopismo

Format:

text/xml

Resource Identifier:

oai:rcin.org.pl:55613 ; 10.3161/068.041.0204

Source:

MiIZ PAN, sygn. P.4568 ; MiIZ PAN, sygn. P.257 ; click here to follow the link

Language:

eng

Language of abstract:

pol ; eng

Rights:

Prawa zastrzeżone - dostęp ograniczony

Terms of use:

Zasób chroniony prawem autorskim. Korzystanie dozwolone wyłącznie na terminalach Muzeum i Instytutu Zoologii PAN 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

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