Parental age and reproduction in the marsh tit

Forskningsoutput: TidskriftsbidragArtikel i vetenskaplig tidskrift

Abstract

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.

Detaljer

Författare
Enheter & grupper
Forskningsområden

Ämnesklassifikation (UKÄ) – OBLIGATORISK

  • Zoologi
  • Ekologi
Originalspråkengelska
Sidor (från-till)196-201
TidskriftIbis
Volym135
StatusPublished - 1993
PublikationskategoriForskning
Peer review utfördJa