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Auteur Marek Zakrzewski |
Documents disponibles écrits par cet auteur (2)
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Article
Manfred Lieser, Auteur ; Marek Zakrzewski, AuteurIn four years we collicted information about the reproductive biology of ptarmigan in North-East Greenland. The data correspond well to that from other parts of the species' range. The average clutch size was 8.7 (7-12) eggs. The earliest day of[...]![]()
Article
Manfred Lieser, Auteur ; Marek Zakrzewski, AuteurFrom 1996-1999, 15 ptarmigan (7 male, 8 female) were radio-tracked between early June and mid-August on Traill Island (northeastern Greenland), providing many data about spacing and social behaviour during the breeding and chick-rearing period. [...]



