Détail de l'auteur
Documents disponibles écrits par cet auteur (6)
Ajouter le résultat dans votre panier Affiner la recherche
Article
Martti Hario, Auteur ; Jukka Rintala, AuteurAfter an increase from the 1930s through the mid-1990s, the populations of the Herring Gull (Larus argentatus), the Lesser Black-backed Gull (L. fuscus fuscus), and the Great Black-backed Gull (L. marinus) in Finland are currently declining at r[...]
Article
Martti Hario, Auteur ; Jukka Rintala, AuteurThe Baltic/Wadden Sea Common Eider (Somateria m. mollissima) population may have declined by one-third between 1991 and 2000, based on counts carried out on the species wintering grounds, Denmark in particular. However, less drastic reductions h[...]
Article
Article
Martti Hario, Auteur ; Marja-Liisa Koljonen, Auteur ; Jukka Rintala, AuteurWe investigated the presence of kin-biased cooperative breeding in the Common Eider (Somateria m. mollissima), a colonial seaduck commonly presumed to have a high rate of natal philopatry. Based on a 23-year-long time series of individually mark[...]
Article
Ramunas Zydelis, Auteur ; Svein-Hakon Lorentsen, Auteur ; Anthony D. Fox, Auteur ; Andres Kuresoo, Auteur ; Yuri Krasnov, Auteur ; Yuri Goryaev, Auteur ; Jan Ove Bustnes, Auteur ; Martti Hario, Auteur ; Leif Nilsson, Auteur ; Antra Stipniece, AuteurSteller's Eider Polysticta stelleri has a restricted arctic breeding range. The world population declined to c. 220,000 individuals in the late 1990s from an estimated 400,000-500,000 in the 1960s. The species has a limited global wintering dist[...]
Article
Martti Hario, Auteur ; Jari M. J. Nuutinen, AuteurSevere reproductive failure has contributed to a drastic population decline of the nominate Lesser Black-backed Gull (Larus fuscus fuscus) in its breeding grounds in the Gulf of Finland and the Bay of Bothnia. In intensive field studies in the c[...]
