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Porträtt av Henrik Smith. Foto.

Henrik Smith

Professor

Porträtt av Henrik Smith. Foto.

Parental age and reproduction in the marsh tit

Författare

  • Henrik G. Smith

Summary, in English

In the Marsh Tit Parus palustris, breeding performance improved with the age of both the male and the female parent-older birds produced larger clutches earlier in the season. The effect of male age, however, was mainly due to a positive association with the age of the female. When the effect of laying date was accounted for, there was no additional effect of female age on clutch-size. However, pairs with previous breeding experience laid larger clutches than newly formed pairs of the same age. There was some evidence that young females that laid late in the season were less likely to survive to breed again, leading to an age effect on reproductive performance. There was no evidence that individual birds laid earlier or produced larger clutches when they became older.

Avdelning/ar

  • Centrum för miljö- och klimatvetenskap (CEC)
  • Biodiversitet
  • Biodiversitet och bevarandevetenskap

Publiceringsår

1993

Språk

Engelska

Sidor

196-201

Publikation/Tidskrift/Serie

Ibis

Volym

135

Dokumenttyp

Artikel i tidskrift

Förlag

Wiley-Blackwell

Ämne

  • Zoology
  • Ecology

Status

Published

Forskningsgrupp

  • Biodiversity and Conservation Science

ISBN/ISSN/Övrigt

  • ISSN: 0019-1019