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Article
Breeding season food limitation drives population decline of the Little Owl Athene noctua in Denmark
Kasper Thorup, Auteur ; Peter Sunde, Auteur ; Lars B. Jacobsen, Auteur ; Carsten Rahbek, AuteurMany farmland bird species have declined markedly in Europe in recent decades because of changes in agricultural practice. The specific causes vary and are poorly known for many species. The Little Owl, which feeds extensively on large invertebr[...]
Article
Peter Sunde, Auteur ; Kasper Thorup, Auteur ; Lars B. Jacobsen, Auteur ; Miriam H. Holsegard-Rasmussen, Auteur ; Nina Ottessen, Auteur ; Susanne Svenne, Auteur ; Carsten Rahbek, AuteurKnowledge of a species' spatial behaviour is essential for understanding its behavioural ecology, as well as a prerequisite to planning of conservation strategies. The Little Owl (Athene noctua) has shown a substantial decline in north-western E[...]
Article
Lars B. Jacobsen, Auteur ; Peter Sunde, Auteur ; Carsten Rahbek, Auteur ; Torben Dabelsteen, Auteur ; Kasper Thorup, AuteurWith the aim of quantifying spatio-temporal and social factors affecting territorial calls in Little Owls, we collected data on the calling behaviour of radio tracked individuals from a low-density population in Northern Jutland, Denmark. There [...]
Article
Miriam H. Holsegard-Rasmussen, Auteur ; Peter Sunde, Auteur ; Kasper Thorup, Auteur ; Lars B. Jacobsen, Auteur ; Nina Ottesen, Auteur ; Susanne Svenne, Auteur ; Carsten Rahbek, AuteurDans Ardea (97(4) 2009)Locomotion is costly and should therefore serve a purpose according to the principle of optimal behaviour. In this light, we studied variation in nocturnal activity of radio-tagged Little Owls Athene noctua in Denmark where, after a decline of a[...]
