Détail de l'auteur
Documents disponibles écrits par cet auteur (6)
Ajouter le résultat dans votre panier Affiner la recherche
Article
Sari Raja-aho, Auteur ; Tapio Eeva, Auteur ; Petri Suorsa, Auteur ; Jari Valkama, Auteur ; Esa Lehikoinen, AuteurDans Ibis (159(4) 2017)Long-distance migratory passerines may exhibit different post-fledging rearing times between their early and late broods due to limited time and energy resources. This could affect the migratory fuelling behaviour, condition and fitness of juven[...]
Article
Saija Sirkia, Auteur ; Ari Nikula, Auteur ; Pekka Helle, Auteur ; Harto Linden, Auteur ; Kai Norrdahl, Auteur ; Petri Suorsa, Auteur ; Pentti Valkeajarvi, AuteurCapercaillie (Tetra urogallus) has traditionally been considered an old forest-dependent species. The lekking sites especially, were thought to be located in older forests. We studied the persistence of Capercaillie lekking areas in relation to [...]
Article
Ivar Ojaste, Auteur ; Aivar Leito, Auteur ; Petri Suorsa, Auteur ; Anders Hedenström, Auteur ; Kalev Sepp, Auteur ; Meelis Leivits, Auteur ; Urmas Sellis, Auteur ; Ülo Väli, AuteurThe majority of Common Cranes (Grus grus) breeding in northern Europe are short- to medium-distance migrants that overwinter in southern Europe, northern Africa, and the Middle East. However, some individuals migrate longer distances to as far a[...]
Article
Eric Le Tortorec, Auteur ; Samuli Helle, Auteur ; Petri Suorsa, Auteur ; Harri Hakkarainen, AuteurOur understanding of the effects of habitat loss on individual performance is limited due to a lack of experimental studies that take the potential genetic and parental effects producing phenotypic variation into consideration. To assess the rel[...]
Article
Saija Sirkia, Auteur ; Pekka Helle, Auteur ; Harto Linden, Auteur ; Ari Nikula, Auteur ; Kai Norrdahl, Auteur ; Petri Suorsa, Auteur ; Pentti Valkeajarvi, AuteurWe studied the effects of habitat loss, fragmentation and their interaction on the persistence of Capercaillie lekking areas at three study areas in Finland. We inspected a total of 381 leks twice with an interval of 10-30 years, and classified [...]
Article
Ari Jaentti, Auteur ; Petri Suorsa, Auteur ; Harri Hakkarainen, Auteur ; Jouni Sorvari, Auteur ; Esa Huhta, Auteur ; Markku Kuitunen, AuteurStudies on individual reproductive success in relation to interspecific competition between distantly related taxa are scarce. We studied whether the abundance of red wood ants Formica rufa -group is related to the breeding habitat selection, fe[...]
