The importance of pre‐thicket conifer plantations for nesting Hen Harriers Circus cyaneus in Ireland
Hen Harriers Circus cyaneus are threatened across much of their range and their conservation requires appropriate habitat management. The locations of 148 Hen Harrier nests found in the Republic of Ireland during national breeding surveys in 2000 and 2005 were used to assess nest‐site selection. The...
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crwiley:10.1111/j.1474-919x.2009.00918.x 2024-09-15T18:02:09+00:00 The importance of pre‐thicket conifer plantations for nesting Hen Harriers Circus cyaneus in Ireland WILSON, MARK W. IRWIN, SANDRA NORRISS, DAVID W. NEWTON, STEPHEN F. COLLINS, KEVIN KELLY, THOMAS C. O’HALLORAN, JOHN 2009 http://dx.doi.org/10.1111/j.1474-919x.2009.00918.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fj.1474-919X.2009.00918.x https://onlinelibrary.wiley.com/doi/pdf/10.1111/j.1474-919X.2009.00918.x en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Ibis volume 151, issue 2, page 332-343 ISSN 0019-1019 1474-919X journal-article 2009 crwiley https://doi.org/10.1111/j.1474-919x.2009.00918.x 2024-08-13T04:15:29Z Hen Harriers Circus cyaneus are threatened across much of their range and their conservation requires appropriate habitat management. The locations of 148 Hen Harrier nests found in the Republic of Ireland during national breeding surveys in 2000 and 2005 were used to assess nest‐site selection. The distribution of these nests was compared to distributions of randomly located points to investigate selection at the scale of the nest‐site and landscape. The main nesting habitats selected were pre‐thicket stage of first and, particularly, second rotation plantations, mostly of exotic conifers. There was no evidence that the area of post‐closure plantations negatively affected Hen Harrier nest distribution. There was a positive correlation across study areas between changes in numbers of Hen Harrier nests between 2000 and 2005 and changes in the area of pre‐thicket second rotation plantations over the same period. The overall effect of plantation forests on breeding Hen Harriers in Ireland therefore appears to be positive. However, this study did not consider the effects of plantation habitats on breeding success. Improved grassland was strongly avoided as a nesting habitat. Furthermore, after controlling for the influence of nesting habitat on nest location, landscapes with a high percentage cover of improved grassland were also avoided. Further agricultural intensification of grassland in areas where Hen Harriers breed is likely to have a negative impact on this species. These results are required for the development of management strategies for the conservation of this species. Article in Journal/Newspaper Circus cyaneus Wiley Online Library Ibis 151 2 332 343 |
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Wiley Online Library |
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English |
description |
Hen Harriers Circus cyaneus are threatened across much of their range and their conservation requires appropriate habitat management. The locations of 148 Hen Harrier nests found in the Republic of Ireland during national breeding surveys in 2000 and 2005 were used to assess nest‐site selection. The distribution of these nests was compared to distributions of randomly located points to investigate selection at the scale of the nest‐site and landscape. The main nesting habitats selected were pre‐thicket stage of first and, particularly, second rotation plantations, mostly of exotic conifers. There was no evidence that the area of post‐closure plantations negatively affected Hen Harrier nest distribution. There was a positive correlation across study areas between changes in numbers of Hen Harrier nests between 2000 and 2005 and changes in the area of pre‐thicket second rotation plantations over the same period. The overall effect of plantation forests on breeding Hen Harriers in Ireland therefore appears to be positive. However, this study did not consider the effects of plantation habitats on breeding success. Improved grassland was strongly avoided as a nesting habitat. Furthermore, after controlling for the influence of nesting habitat on nest location, landscapes with a high percentage cover of improved grassland were also avoided. Further agricultural intensification of grassland in areas where Hen Harriers breed is likely to have a negative impact on this species. These results are required for the development of management strategies for the conservation of this species. |
format |
Article in Journal/Newspaper |
author |
WILSON, MARK W. IRWIN, SANDRA NORRISS, DAVID W. NEWTON, STEPHEN F. COLLINS, KEVIN KELLY, THOMAS C. O’HALLORAN, JOHN |
spellingShingle |
WILSON, MARK W. IRWIN, SANDRA NORRISS, DAVID W. NEWTON, STEPHEN F. COLLINS, KEVIN KELLY, THOMAS C. O’HALLORAN, JOHN The importance of pre‐thicket conifer plantations for nesting Hen Harriers Circus cyaneus in Ireland |
author_facet |
WILSON, MARK W. IRWIN, SANDRA NORRISS, DAVID W. NEWTON, STEPHEN F. COLLINS, KEVIN KELLY, THOMAS C. O’HALLORAN, JOHN |
author_sort |
WILSON, MARK W. |
title |
The importance of pre‐thicket conifer plantations for nesting Hen Harriers Circus cyaneus in Ireland |
title_short |
The importance of pre‐thicket conifer plantations for nesting Hen Harriers Circus cyaneus in Ireland |
title_full |
The importance of pre‐thicket conifer plantations for nesting Hen Harriers Circus cyaneus in Ireland |
title_fullStr |
The importance of pre‐thicket conifer plantations for nesting Hen Harriers Circus cyaneus in Ireland |
title_full_unstemmed |
The importance of pre‐thicket conifer plantations for nesting Hen Harriers Circus cyaneus in Ireland |
title_sort |
importance of pre‐thicket conifer plantations for nesting hen harriers circus cyaneus in ireland |
publisher |
Wiley |
publishDate |
2009 |
url |
http://dx.doi.org/10.1111/j.1474-919x.2009.00918.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fj.1474-919X.2009.00918.x https://onlinelibrary.wiley.com/doi/pdf/10.1111/j.1474-919X.2009.00918.x |
genre |
Circus cyaneus |
genre_facet |
Circus cyaneus |
op_source |
Ibis volume 151, issue 2, page 332-343 ISSN 0019-1019 1474-919X |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1111/j.1474-919x.2009.00918.x |
container_title |
Ibis |
container_volume |
151 |
container_issue |
2 |
container_start_page |
332 |
op_container_end_page |
343 |
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1810439409415225344 |