Low body mass of juvenile Ross's gulls Rhodostethia rosea in the Laptev Sea

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Abstract

Four juvenile Ross's gulls Rhodostethia rosea were trapped on the New Siberian Islands in the Laptev Sea in early August 1994, allowing data collection on body mass and morphometrics from a poorly known part of the species' annual cycle. The wings of juvenile birds were shorter than those previously reported for adults, but their bill length and tarsus length were similar. Their average body mass (128 g) was very low, suggesting that some juvenile Ross's gulls have only very small energy reserves left after post-breeding dispersal, which in this case was at least 300 km.

Detaljer

Författare
Enheter & grupper
Forskningsområden

Ämnesklassifikation (UKÄ) – OBLIGATORISK

  • Biologiska vetenskaper
  • Ekologi

Nyckelord

Originalspråkengelska
Sidor (från-till)280-282
TidskriftArctic
Volym51
Utgåva nummer3
StatusPublished - 1998
PublikationskategoriForskning
Peer review utfördJa