Changes in diet and morphology of Finnish goshawks from 1960s to 1990s

@article{Tornberg1999ChangesID,
  title={Changes in diet and morphology of Finnish goshawks from 1960s to 1990s},
  author={R. Tornberg and M. M{\"o}nkk{\"o}nen and M. Pahkala},
  journal={Oecologia},
  year={1999},
  volume={121},
  pages={369-376}
}
  • R. Tornberg, M. Mönkkönen, M. Pahkala
  • Published 1999
  • Biology, Medicine
  • Oecologia
  • Abstract We studied the morphology of the goshawk in northern Finland by measuring skin and skeletal characters of 258 museum specimens dated between 1961 and 1997. We predicted a decrease in the size of male goshawks from the 1960s because availability of their main prey, grouse, has decreased since then and grouse have been replaced in the diet by smaller prey during the breeding season. Based on the assumption that winter is the most critical period for females, we predicted that female size… CONTINUE READING
    50 Citations

    Figures, Tables, and Topics from this paper

    Explore Further: Topics Discussed in This Paper

    Diet shift induced rapid evolution of size and function in a predatory bird
    • 4
    Hunting behaviour and breeding performance of northern goshawks Accipiter gentilis, in relation to resource availability, sex, age and morphology
    • 30
    • Highly Influenced
    • PDF
    Recent changes in allometric relationships among morphological traits in the dipper (Cinclus cinclus)
    • 25
    • PDF
    Territory occupancy rate of goshawk and gyrfalcon: no evidence of delayed numerical response to grouse numbers
    • 11