Diet of breeding Eleonora's falcon Falco eleonorae in Algeria: Insights for the autumn trans‐Mediterranean avian migration
Abstract How environmental changes are affecting bird population dynamics is one of the most challenging conservation issues. Dietary studies of top avian predators could offer scope to monitor anthropogenic drivers of ecosystem changes. We investigated the diet of breeding Eleonora's falcon in...
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ftdoajarticles:oai:doaj.org/article:d1b245523dc2403c96ed7b65d2fd1d12 2023-05-15T14:17:16+02:00 Diet of breeding Eleonora's falcon Falco eleonorae in Algeria: Insights for the autumn trans‐Mediterranean avian migration Boudjéma Samraoui Yves Kayser Laïd Touati Farrah Samraoui Abdennour Boucheker Hamed A. El‐Serehy Kenz Raouf Samraoui 2022-07-01T00:00:00Z https://doi.org/10.1002/ece3.9065 https://doaj.org/article/d1b245523dc2403c96ed7b65d2fd1d12 EN eng Wiley https://doi.org/10.1002/ece3.9065 https://doaj.org/toc/2045-7758 2045-7758 doi:10.1002/ece3.9065 https://doaj.org/article/d1b245523dc2403c96ed7b65d2fd1d12 Ecology and Evolution, Vol 12, Iss 7, Pp n/a-n/a (2022) autumn migration diet passerine trans‐Mediterranean migration trans‐Saharan migrants Ecology QH540-549.5 article 2022 ftdoajarticles https://doi.org/10.1002/ece3.9065 2022-12-30T22:44:13Z Abstract How environmental changes are affecting bird population dynamics is one of the most challenging conservation issues. Dietary studies of top avian predators could offer scope to monitor anthropogenic drivers of ecosystem changes. We investigated the diet of breeding Eleonora's falcon in an area of Northeastern Algeria in the years 2010–2012. Feathers and insect remains originating from prey plucking behavior were analyzed, providing insights into the seasonally changing diet of this raptor, as well as the trans‐Mediterranean avian migration. A total of 77 species of birds (16 Sylviidae, 11 Turdidae, and 4 Emberizidae), 3 species of insects, and 1 lizard were identified among prey remains, reflecting a diverse diet. Diet composition and prey abundance varied seasonally, faithfully correlating with the passage of migrant birds as recorded from bird ring recoveries. Our findings suggest that dietary studies of predators might be deployed to investigate changes in bird migration. We discuss our results in the context of trans‐Mediterranean migration, with early‐season prey mainly comprising trans‐Saharan migrants (Apus apus and Merops apiaster) and late‐season prey being dominated by Mediterranean winter migrants (Erithacus rubecula, Turdus philomelos, Sylvia atricapilla, and Sturnus vulgaris). Notably, we observed a significant reduction in species richness of passerine remains in 2012, potentially highlighting a decline in the diversity of avian migrants. Article in Journal/Newspaper Apus apus Directory of Open Access Journals: DOAJ Articles Ecology and Evolution 12 7 |
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Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
autumn migration diet passerine trans‐Mediterranean migration trans‐Saharan migrants Ecology QH540-549.5 |
spellingShingle |
autumn migration diet passerine trans‐Mediterranean migration trans‐Saharan migrants Ecology QH540-549.5 Boudjéma Samraoui Yves Kayser Laïd Touati Farrah Samraoui Abdennour Boucheker Hamed A. El‐Serehy Kenz Raouf Samraoui Diet of breeding Eleonora's falcon Falco eleonorae in Algeria: Insights for the autumn trans‐Mediterranean avian migration |
topic_facet |
autumn migration diet passerine trans‐Mediterranean migration trans‐Saharan migrants Ecology QH540-549.5 |
description |
Abstract How environmental changes are affecting bird population dynamics is one of the most challenging conservation issues. Dietary studies of top avian predators could offer scope to monitor anthropogenic drivers of ecosystem changes. We investigated the diet of breeding Eleonora's falcon in an area of Northeastern Algeria in the years 2010–2012. Feathers and insect remains originating from prey plucking behavior were analyzed, providing insights into the seasonally changing diet of this raptor, as well as the trans‐Mediterranean avian migration. A total of 77 species of birds (16 Sylviidae, 11 Turdidae, and 4 Emberizidae), 3 species of insects, and 1 lizard were identified among prey remains, reflecting a diverse diet. Diet composition and prey abundance varied seasonally, faithfully correlating with the passage of migrant birds as recorded from bird ring recoveries. Our findings suggest that dietary studies of predators might be deployed to investigate changes in bird migration. We discuss our results in the context of trans‐Mediterranean migration, with early‐season prey mainly comprising trans‐Saharan migrants (Apus apus and Merops apiaster) and late‐season prey being dominated by Mediterranean winter migrants (Erithacus rubecula, Turdus philomelos, Sylvia atricapilla, and Sturnus vulgaris). Notably, we observed a significant reduction in species richness of passerine remains in 2012, potentially highlighting a decline in the diversity of avian migrants. |
format |
Article in Journal/Newspaper |
author |
Boudjéma Samraoui Yves Kayser Laïd Touati Farrah Samraoui Abdennour Boucheker Hamed A. El‐Serehy Kenz Raouf Samraoui |
author_facet |
Boudjéma Samraoui Yves Kayser Laïd Touati Farrah Samraoui Abdennour Boucheker Hamed A. El‐Serehy Kenz Raouf Samraoui |
author_sort |
Boudjéma Samraoui |
title |
Diet of breeding Eleonora's falcon Falco eleonorae in Algeria: Insights for the autumn trans‐Mediterranean avian migration |
title_short |
Diet of breeding Eleonora's falcon Falco eleonorae in Algeria: Insights for the autumn trans‐Mediterranean avian migration |
title_full |
Diet of breeding Eleonora's falcon Falco eleonorae in Algeria: Insights for the autumn trans‐Mediterranean avian migration |
title_fullStr |
Diet of breeding Eleonora's falcon Falco eleonorae in Algeria: Insights for the autumn trans‐Mediterranean avian migration |
title_full_unstemmed |
Diet of breeding Eleonora's falcon Falco eleonorae in Algeria: Insights for the autumn trans‐Mediterranean avian migration |
title_sort |
diet of breeding eleonora's falcon falco eleonorae in algeria: insights for the autumn trans‐mediterranean avian migration |
publisher |
Wiley |
publishDate |
2022 |
url |
https://doi.org/10.1002/ece3.9065 https://doaj.org/article/d1b245523dc2403c96ed7b65d2fd1d12 |
genre |
Apus apus |
genre_facet |
Apus apus |
op_source |
Ecology and Evolution, Vol 12, Iss 7, Pp n/a-n/a (2022) |
op_relation |
https://doi.org/10.1002/ece3.9065 https://doaj.org/toc/2045-7758 2045-7758 doi:10.1002/ece3.9065 https://doaj.org/article/d1b245523dc2403c96ed7b65d2fd1d12 |
op_doi |
https://doi.org/10.1002/ece3.9065 |
container_title |
Ecology and Evolution |
container_volume |
12 |
container_issue |
7 |
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1766289147373289472 |