Eagle Owl Bubo bubo proximity can lower productivity of cliff-nesting Peregrines Falco peregrinus

The Eagle Owl Bubo bubo is conventionally regarded as an important predator of smaller diurnal birds of prey. In this study, we analysed the relationships between Peregrine pro-ductivity and the proximity to Eagle Owl nests/cliffs in a cliff-nesting Peregrine Falco peregrinus population across the c...

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Bibliographic Details
Main Authors: Brambilla, M., Rubolini, D., Guidali, F.
Format: Article in Journal/Newspaper
Language:English
Published: BirdLife Finland 2006
Subjects:
Online Access:https://ornisfennica.journal.fi/article/view/133650
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spelling fttsvojs:oai:journal.fi:article/133650 2023-09-05T13:19:19+02:00 Eagle Owl Bubo bubo proximity can lower productivity of cliff-nesting Peregrines Falco peregrinus Brambilla, M. Rubolini, D. Guidali, F. 2006-03-31 application/pdf https://ornisfennica.journal.fi/article/view/133650 eng eng BirdLife Finland https://ornisfennica.journal.fi/article/view/133650/82196 https://ornisfennica.journal.fi/article/view/133650 Ornis Fennica; Vol 83 Nro 1 (2006); 20–26 Ornis Fennica; Vol. 83 No. 1 (2006); 20–26 0030-5685 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Peer-reviewed Article 2006 fttsvojs 2023-08-23T23:02:59Z The Eagle Owl Bubo bubo is conventionally regarded as an important predator of smaller diurnal birds of prey. In this study, we analysed the relationships between Peregrine pro-ductivity and the proximity to Eagle Owl nests/cliffs in a cliff-nesting Peregrine Falco peregrinus population across the central pre-Alps of Italy and Switzerland over three breeding seasons. There was no effect of Eagle Owls on Peregrine productivity over the whole study area, whereas in a restricted sub-area, where both species occurred at higher densities, proximity to Eagle Owl nests/cliffs and syntopic co-occurrence of the two spe-cies at a given cliff complex resulted in lower Peregrine productivity. Eagle Owl effects at the wider scale were probably masked by other ecological and/or environmental features affecting reproductive success of the Peregrine, whereas these became evident when fo-cusing on a more restricted and homogeneous area. Thus, our study suggests that Eagle Owls may affect population dynamics of diurnal raptors via an effect on productivity. Article in Journal/Newspaper Falco peregrinus Federation of Finnish Learned Societies: Scientific Journals Online
institution Open Polar
collection Federation of Finnish Learned Societies: Scientific Journals Online
op_collection_id fttsvojs
language English
description The Eagle Owl Bubo bubo is conventionally regarded as an important predator of smaller diurnal birds of prey. In this study, we analysed the relationships between Peregrine pro-ductivity and the proximity to Eagle Owl nests/cliffs in a cliff-nesting Peregrine Falco peregrinus population across the central pre-Alps of Italy and Switzerland over three breeding seasons. There was no effect of Eagle Owls on Peregrine productivity over the whole study area, whereas in a restricted sub-area, where both species occurred at higher densities, proximity to Eagle Owl nests/cliffs and syntopic co-occurrence of the two spe-cies at a given cliff complex resulted in lower Peregrine productivity. Eagle Owl effects at the wider scale were probably masked by other ecological and/or environmental features affecting reproductive success of the Peregrine, whereas these became evident when fo-cusing on a more restricted and homogeneous area. Thus, our study suggests that Eagle Owls may affect population dynamics of diurnal raptors via an effect on productivity.
format Article in Journal/Newspaper
author Brambilla, M.
Rubolini, D.
Guidali, F.
spellingShingle Brambilla, M.
Rubolini, D.
Guidali, F.
Eagle Owl Bubo bubo proximity can lower productivity of cliff-nesting Peregrines Falco peregrinus
author_facet Brambilla, M.
Rubolini, D.
Guidali, F.
author_sort Brambilla, M.
title Eagle Owl Bubo bubo proximity can lower productivity of cliff-nesting Peregrines Falco peregrinus
title_short Eagle Owl Bubo bubo proximity can lower productivity of cliff-nesting Peregrines Falco peregrinus
title_full Eagle Owl Bubo bubo proximity can lower productivity of cliff-nesting Peregrines Falco peregrinus
title_fullStr Eagle Owl Bubo bubo proximity can lower productivity of cliff-nesting Peregrines Falco peregrinus
title_full_unstemmed Eagle Owl Bubo bubo proximity can lower productivity of cliff-nesting Peregrines Falco peregrinus
title_sort eagle owl bubo bubo proximity can lower productivity of cliff-nesting peregrines falco peregrinus
publisher BirdLife Finland
publishDate 2006
url https://ornisfennica.journal.fi/article/view/133650
genre Falco peregrinus
genre_facet Falco peregrinus
op_source Ornis Fennica; Vol 83 Nro 1 (2006); 20–26
Ornis Fennica; Vol. 83 No. 1 (2006); 20–26
0030-5685
op_relation https://ornisfennica.journal.fi/article/view/133650/82196
https://ornisfennica.journal.fi/article/view/133650
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