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...
Main Authors: | , , , , , , |
---|---|
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
BirdLife Finland
2007
|
Subjects: | |
Online Access: | https://ornisfennica.journal.fi/article/view/133696 |
id |
fttsvojs:oai:journal.fi:article/133696 |
---|---|
record_format |
openpolar |
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 |
_version_ |
1776204799498256384 |