Goshawk diet during the nestling period in farmland and forest-dominated areas in southern Norway

During the past decades, goshawk (Accipiter gentilis) populations have declined in forest-dominated landscapes in Norway. To reveal the importance of different prey species in forest versus farmland landscapes, we video recorded 146 prey deliveries at four nests in a farmland-dominated area and thre...

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Main Authors: Johansen, H. M., Selås, V., Fagerland, K., Johnsen, J. T., Sveen, B.-A., Tapia, L., Steen, R.
Format: Article in Journal/Newspaper
Language:English
Published: BirdLife Finland 2007
Subjects:
Online Access:https://ornisfennica.journal.fi/article/view/133696
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spelling fttsvojs:oai:journal.fi:article/133696 2023-09-05T13:11:05+02:00 Goshawk diet during the nestling period in farmland and forest-dominated areas in southern Norway Johansen, H. M. Selås, V. Fagerland, K. Johnsen, J. T. Sveen, B.-A. Tapia, L. Steen, R. 2007-12-31 application/pdf https://ornisfennica.journal.fi/article/view/133696 eng eng BirdLife Finland https://ornisfennica.journal.fi/article/view/133696/82242 https://ornisfennica.journal.fi/article/view/133696 Ornis Fennica; Vol 84 Nro 4 (2007); 181–188 Ornis Fennica; Vol. 84 No. 4 (2007); 181–188 0030-5685 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Peer-reviewed Article 2007 fttsvojs 2023-08-23T23:03:02Z During the past decades, goshawk (Accipiter gentilis) populations have declined in forest-dominated landscapes in Norway. To reveal the importance of different prey species in forest versus farmland landscapes, we video recorded 146 prey deliveries at four nests in a farmland-dominated area and three nests in a forest-dominated area in south-eastern Norway in June 2005. Thrushes and corvids were the dominating prey in both areas. We found higher diet diversity in the forest-dominated landscape, but we also found high dietary overlap, presumably due to the dominance of thrushes in both areas. Prey composition of forest versus farmland species differed significantly between the areas, mainly due to a higher proportion of corvids and a lower proportion of grouse in the farmland-dominated area. Goshawk diet thus reflects the habitats within the nesting territory. Article in Journal/Newspaper Accipiter gentilis Federation of Finnish Learned Societies: Scientific Journals Online Norway
institution Open Polar
collection Federation of Finnish Learned Societies: Scientific Journals Online
op_collection_id fttsvojs
language English
description During the past decades, goshawk (Accipiter gentilis) populations have declined in forest-dominated landscapes in Norway. To reveal the importance of different prey species in forest versus farmland landscapes, we video recorded 146 prey deliveries at four nests in a farmland-dominated area and three nests in a forest-dominated area in south-eastern Norway in June 2005. Thrushes and corvids were the dominating prey in both areas. We found higher diet diversity in the forest-dominated landscape, but we also found high dietary overlap, presumably due to the dominance of thrushes in both areas. Prey composition of forest versus farmland species differed significantly between the areas, mainly due to a higher proportion of corvids and a lower proportion of grouse in the farmland-dominated area. Goshawk diet thus reflects the habitats within the nesting territory.
format Article in Journal/Newspaper
author Johansen, H. M.
Selås, V.
Fagerland, K.
Johnsen, J. T.
Sveen, B.-A.
Tapia, L.
Steen, R.
spellingShingle Johansen, H. M.
Selås, V.
Fagerland, K.
Johnsen, J. T.
Sveen, B.-A.
Tapia, L.
Steen, R.
Goshawk diet during the nestling period in farmland and forest-dominated areas in southern Norway
author_facet Johansen, H. M.
Selås, V.
Fagerland, K.
Johnsen, J. T.
Sveen, B.-A.
Tapia, L.
Steen, R.
author_sort Johansen, H. M.
title Goshawk diet during the nestling period in farmland and forest-dominated areas in southern Norway
title_short Goshawk diet during the nestling period in farmland and forest-dominated areas in southern Norway
title_full Goshawk diet during the nestling period in farmland and forest-dominated areas in southern Norway
title_fullStr Goshawk diet during the nestling period in farmland and forest-dominated areas in southern Norway
title_full_unstemmed Goshawk diet during the nestling period in farmland and forest-dominated areas in southern Norway
title_sort goshawk diet during the nestling period in farmland and forest-dominated areas in southern norway
publisher BirdLife Finland
publishDate 2007
url https://ornisfennica.journal.fi/article/view/133696
geographic Norway
geographic_facet Norway
genre Accipiter gentilis
genre_facet Accipiter gentilis
op_source Ornis Fennica; Vol 84 Nro 4 (2007); 181–188
Ornis Fennica; Vol. 84 No. 4 (2007); 181–188
0030-5685
op_relation https://ornisfennica.journal.fi/article/view/133696/82242
https://ornisfennica.journal.fi/article/view/133696
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