Large-scale genotypic identification reveals density-dependent natal dispersal patterns in an elusive bird of prey ...

• Main Authors: Penttinen, Ida, Nebel, Carina, Stjernberg, Torsten, Kvist, Laura, Ponnikas, Suvi, Laaksonen, Toni
• Format: Article in Journal/Newspaper
• Language: unknown
• Published: figshare 2024
• Subjects: Ecology; FOS Biological sciences; Haliaeetus albicilla; White-tailed eagle
• Online Access: https://dx.doi.org/10.6084/m9.figshare.c.7077394; https://springernature.figshare.com/collections/Large-scale_genotypic_identification_reveals_density-dependent_natal_dispersal_patterns_in_an_elusive_bird_of_prey/7077394

Abstract Background Natal dispersal, the distance between site of birth and site of first breeding, has a fundamental role in population dynamics and species’ responses to environmental changes. Population density is considered a key driver of natal dispersal. However, few studies have been able to examine densities at both the natal and the settlement site, which is critical for understanding the role of density in dispersal. Additionally, the role of density on natal dispersal remains poorly understood in long-lived and slowly reproducing species, due to their prolonged dispersal periods and often elusive nature. We studied the natal dispersal of the white-tailed eagle (Haliaeetus albicilla) in response to local breeder densities. We investigated the effects of the number of active territories around the natal site on (a) natal dispersal distance and (b) the difference between natal and settlement site breeder density. We were interested in whether eagles showed tendencies of conspecific attraction ...