The influence of nest size on heat loss of Penduline Tit eggs

I. Szentirmai, T. Székely, A. Likér

Research output: Contribution to journalArticle

16 Citations (Scopus)

Abstract

The size and quality of nest influence mate choice and parental behaviour in several birds. Previous works in Penduline Tits showed that females prefer to mate with males that build large nests, and females desert small nests whereas they incubate eggs in large nests. We tested whether female preference may be related to the benefits of having large nests by investigating the influence of nest size (height, volume and thickness) on cooling rates of eggs and terminal egg temperatures in the laboratory using two ambient temperatures (10°C and 25°C), and clutch sizes (3 and 9 dummy eggs). Cooling rate of eggs was slower at 25°C than at 10°C, and 9 eggs cooled slower than 3 eggs. In addition, cooling rates decreased with nest thickness, although they were unrelated to nest height and volume. The influence of nest thickness on egg cooling rates was stronger at 10°C than at 25°C indicating that nest thickness is particularly important to insulate the eggs in relatively cold environment. Our results are thus consistent with a previous field study that showed a stronger female preference for large nests early in the breeding season, when ambient temperatures are low, than late in the season.

Original languageEnglish
Pages (from-to)59-66
Number of pages8
JournalActa Zoologica Academiae Scientiarum Hungaricae
Volume51
Issue number1
Publication statusPublished - 2005

Fingerprint

nests
heat
cooling
ambient temperature
parental behavior
mating behavior
clutch size
deserts
breeding season
birds
temperature

Keywords

  • Egg heat loss
  • Mate choice
  • Nest size
  • Penduline Tit
  • Remiz pendulinus

ASJC Scopus subject areas

  • Animal Science and Zoology

Cite this

The influence of nest size on heat loss of Penduline Tit eggs. / Szentirmai, I.; Székely, T.; Likér, A.

In: Acta Zoologica Academiae Scientiarum Hungaricae, Vol. 51, No. 1, 2005, p. 59-66.

Research output: Contribution to journalArticle

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