Lifespan analyses of forest raptor nests: patterns of creation, persistence and reuse.
Structural elements for breeding such as nests are key resources for the conservation of bird populations. This is especially true when structural elements require a specific and restricted habitat, or if the construction of nests is costly in time and energy. The availability of nesting-platforms i...
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ftdoajarticles:oai:doaj.org/article:ad302dde6d1c40128ff7dd2fb1e7e216 2023-05-15T13:00:52+02:00 Lifespan analyses of forest raptor nests: patterns of creation, persistence and reuse. María V Jiménez-Franco José E Martínez José F Calvo 2014-01-01T00:00:00Z https://doi.org/10.1371/journal.pone.0093628 https://doaj.org/article/ad302dde6d1c40128ff7dd2fb1e7e216 EN eng Public Library of Science (PLoS) http://europepmc.org/articles/PMC3981714?pdf=render https://doaj.org/toc/1932-6203 1932-6203 doi:10.1371/journal.pone.0093628 https://doaj.org/article/ad302dde6d1c40128ff7dd2fb1e7e216 PLoS ONE, Vol 9, Iss 4, p e93628 (2014) Medicine R Science Q article 2014 ftdoajarticles https://doi.org/10.1371/journal.pone.0093628 2022-12-31T01:26:57Z Structural elements for breeding such as nests are key resources for the conservation of bird populations. This is especially true when structural elements require a specific and restricted habitat, or if the construction of nests is costly in time and energy. The availability of nesting-platforms is influenced by nest creation and persistence. In a Mediterranean forest in southeastern Spain, nesting-platforms are the only structural element for three forest-dwelling raptor species: booted eagle Aquila pennata, common buzzard Buteo buteo and northern goshawk Accipiter gentilis. From 1998 to 2013, we tracked the fate of 157 nesting-platforms built and reused by these species with the aim of determining the rates of creation and destruction of nesting-platforms, estimating nest persistence by applying two survival analyses, describing the pattern of nest reuse and testing the effects of nest use on breeding success. Nest creation and destruction rates were low (0.14 and 0.05, respectively). Using Kaplan Meier survival estimates and Cox proportional-hazards regression models we found that median nest longevity was 12 years and that this was not significantly affected by nest characteristics, nest-tree dimensions, nest-builder species, or frequency of use of the platform. We also estimated a transition matrix, considering the different stages of nest occupation (vacant or occupied by one of the focal species), to obtain the fundamental matrix and the average life expectancies of nests, which varied from 17.9 to 19.7 years. Eighty six percent of nests were used in at least one breeding attempt, 67.5% were reused and 17.8% were successively occupied by at least two of the study species. The frequency of nest use had no significant effects on the breeding success of any species. We conclude that nesting-platforms constitute an important resource for forest raptors and that their longevity is sufficiently high to allow their reuse in multiple breeding attempts. Article in Journal/Newspaper Accipiter gentilis Northern Goshawk Directory of Open Access Journals: DOAJ Articles Meier ENVELOPE(-45.900,-45.900,-60.633,-60.633) PLoS ONE 9 4 e93628 |
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topic |
Medicine R Science Q |
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Medicine R Science Q María V Jiménez-Franco José E Martínez José F Calvo Lifespan analyses of forest raptor nests: patterns of creation, persistence and reuse. |
topic_facet |
Medicine R Science Q |
description |
Structural elements for breeding such as nests are key resources for the conservation of bird populations. This is especially true when structural elements require a specific and restricted habitat, or if the construction of nests is costly in time and energy. The availability of nesting-platforms is influenced by nest creation and persistence. In a Mediterranean forest in southeastern Spain, nesting-platforms are the only structural element for three forest-dwelling raptor species: booted eagle Aquila pennata, common buzzard Buteo buteo and northern goshawk Accipiter gentilis. From 1998 to 2013, we tracked the fate of 157 nesting-platforms built and reused by these species with the aim of determining the rates of creation and destruction of nesting-platforms, estimating nest persistence by applying two survival analyses, describing the pattern of nest reuse and testing the effects of nest use on breeding success. Nest creation and destruction rates were low (0.14 and 0.05, respectively). Using Kaplan Meier survival estimates and Cox proportional-hazards regression models we found that median nest longevity was 12 years and that this was not significantly affected by nest characteristics, nest-tree dimensions, nest-builder species, or frequency of use of the platform. We also estimated a transition matrix, considering the different stages of nest occupation (vacant or occupied by one of the focal species), to obtain the fundamental matrix and the average life expectancies of nests, which varied from 17.9 to 19.7 years. Eighty six percent of nests were used in at least one breeding attempt, 67.5% were reused and 17.8% were successively occupied by at least two of the study species. The frequency of nest use had no significant effects on the breeding success of any species. We conclude that nesting-platforms constitute an important resource for forest raptors and that their longevity is sufficiently high to allow their reuse in multiple breeding attempts. |
format |
Article in Journal/Newspaper |
author |
María V Jiménez-Franco José E Martínez José F Calvo |
author_facet |
María V Jiménez-Franco José E Martínez José F Calvo |
author_sort |
María V Jiménez-Franco |
title |
Lifespan analyses of forest raptor nests: patterns of creation, persistence and reuse. |
title_short |
Lifespan analyses of forest raptor nests: patterns of creation, persistence and reuse. |
title_full |
Lifespan analyses of forest raptor nests: patterns of creation, persistence and reuse. |
title_fullStr |
Lifespan analyses of forest raptor nests: patterns of creation, persistence and reuse. |
title_full_unstemmed |
Lifespan analyses of forest raptor nests: patterns of creation, persistence and reuse. |
title_sort |
lifespan analyses of forest raptor nests: patterns of creation, persistence and reuse. |
publisher |
Public Library of Science (PLoS) |
publishDate |
2014 |
url |
https://doi.org/10.1371/journal.pone.0093628 https://doaj.org/article/ad302dde6d1c40128ff7dd2fb1e7e216 |
long_lat |
ENVELOPE(-45.900,-45.900,-60.633,-60.633) |
geographic |
Meier |
geographic_facet |
Meier |
genre |
Accipiter gentilis Northern Goshawk |
genre_facet |
Accipiter gentilis Northern Goshawk |
op_source |
PLoS ONE, Vol 9, Iss 4, p e93628 (2014) |
op_relation |
http://europepmc.org/articles/PMC3981714?pdf=render https://doaj.org/toc/1932-6203 1932-6203 doi:10.1371/journal.pone.0093628 https://doaj.org/article/ad302dde6d1c40128ff7dd2fb1e7e216 |
op_doi |
https://doi.org/10.1371/journal.pone.0093628 |
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PLoS ONE |
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9 |
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container_start_page |
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