On energetics of mating behaviour of pied flycatcher (Ficedula hypoleuca) males

Ivankina, E.V.; Kerimov, A.B.; Bushuev, A.V.; Ilyina, T.A.

Авторы: Ivankina E.V., Kerimov A.B., Bushuev A.V., Ilyina T.A.
Сборник: Abstract Volume of 25th International Ornithological Congress. Campos do Jordão, Brazil 22-28 August 2010
Тезисы
Год издания: 2010
Место издания: Brazil
Первая страница: 498
Последняя страница: 498
Аннотация: Estimation of energy cost of mating behaviour may provide valuable clues for understanding diversity of reproductive strategies in birds. To attract female pied flycatchers, males perform exaggerated advertising behaviours accompanied by inspection and demonstrations of nest holes. We study how different styles of male mating behaviour were related to basal metabolic rate (BMR), and whether they were a significant portion of maintenance energy expenses. Bachelor males temporarily removed during the pre-nesting period were divided into two samples. Males from first sample (n=137) were one by one tested in open field (OF) indoor aviary (2X2X4m) with artificial trees and nest boxes. Their BMRs were measured at night just before or after OF tests. Males from the second sample (n=68) after OF tests were also put in outdoor aviaries where they were exposed to females in an adjoining room. Their BMRs were measured the next night. Males that frequently entered nest boxes in OF and/or with exposure to females had lower BMR than other males. Increased BMR was peculiar to males with increased rates of circle flights in the OF. Circle flights are negatively correlated with nest box activities. On average, males which passed both tests (OF plus stimulation by female) had greater BMR than males tested only in OF. The results suggest that contact with female may lead to short time BMR increase in males. Low (or lowered) BMR is peculiar to males who already switched over purposeful forms of mating behaviour.
Добавил в систему: Бушуев Андрей Владимирович

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On energetics of mating behaviour of pied flycatcher (Ficedula hypoleuca) malesтезисы доклада

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