Fróðskaparrit - 01.01.2002, Síða 142

140
ECOLOGY OF ENDOPARASITES OF THE ATLANTIC PUFFIN
season spreads the risk of infestation. The
density of the Atlantic puffin outside the
breeding season is one for every 1 to 2 km2
of ocean within the area of distribution
(Harris, 1984). The reason for the lack of a
clear fluctuation in the parasite burden in
the present study probably reflects the lim-
ited time of collection, which was solely
within the breeding season. Collection of
Faroese puffins outside the summer period
would present practical problems, as the
puffms wintering in the Faroese area origi-
nate from Norway (Jensen, 1986), and the
geographic areas occupied by Faroese puf-
fin populations outside the breeding season
are not yet known.
Acknowledgements
The writer is grateful to Kim N. Mouritsen (University
of Árhus, Department of Marine Ecology), who provid-
ed advises and support in statistical analyses and Tomas
Cedhagen (University of Árhus, Department of Marine
Ecology), who also provided advises. Katrina í Geil, is
thanked for assistance in the field, and Jens-Kjeld
Jcnsen, Nólsoy, for guidance in host dissection, metrical
measures and provision of equipment. Isam Sadula
Saeed, Danish Agricultural Academy (Dept. for Exper-
imental Parasitology) kindly provided guidance in para-
site identification and methodology.
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