Wintering Swans Cygnus spp. and Coot Fulica atra in the Öresund, South Sweden, in relation to available food Resources.

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Sammanfattning

In connection with the building of a Fixed Link (bridge –
artificial island – tunnel) between Sweden and Denmark
intensive studies of waterfowl and benthic fauna and flora
in the Öresund were undertaken as a part of the Environmental
Impact Assessment Study. This paper analysis
the occurrences of staging and wintering herbivores (i.e.
Mute Swan Cygnus olor and Coot Fulica atra) in relation
to available food resources. It was concluded that the
proportion of Zostera and Ruppia consumed by the birds
during September–March was about 10% of the available
standing crop in the autumn or less. During ice-periods
large parts of the available feeding areas are covered by
ice, and during an extended ice-period in 1995/1996 the
calculated food consumption for the ice-free areas was
of the same magnitude as the calculated standing crop
of food plants.
Originalspråkengelska
Sidor (från-till)13-21
TidskriftOrnis Svecica
Volym15
StatusPublished - 2005

Ämnesklassifikation (UKÄ)

  • Zoologi
  • Ekologi

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