Dispersal and age at first breeding in Norwegian Northern Lapwings (Vanellus vanellus)

Kirjoittajat

  • T, Lislevand
  • I. Byrkjedal
  • G. B. Grønstøl

Abstrakti

Dispersal and age at first breeding were studied in Northern Lapwings from south Norway. In total, 40 adult birds (twomales) and 114 chicks were colour-ringed. Therewere no sex differences in returning rates of birds ringed as chicks (n = 10males and 14 females). Norwere there sex differences in natal and breeding dispersal distances.When sexes were pooled, natal dispersal was longer than breeding dispersal (median distances 160 m and 62 m, respectively). Also, colour-ringed females were more likely than males to breed in their second calendar year. Analyses of a separate data set of regular ring recoveries largely confirmed the relatively low degree of natal dispersal in Norwegian Northern Lapwings. In total, 72% of birds reported during the breeding season (total n = 104) were found within 10 kmfrom their natal site.Dispersal distances observed inNorway are similar to those reported from a comprehensive British study, and from Europe in general.
Osasto
Artikkelit

Julkaistu

2009-03-31

Viittaaminen

Lislevand, T., Byrkjedal, I., & Grønstøl, G. B. (2009). Dispersal and age at first breeding in Norwegian Northern Lapwings (Vanellus vanellus). Ornis Fennica, 86(1), 11–17. Noudettu osoitteesta https://ornisfennica.journal.fi/article/view/133716