Changes in the waterbird community of the Parc National du Banc d’Arguin, Mauritania, 1980–2017
The Parc National du Banc d’Arguin in Mauritania hosts the largest concentrations of coastal waterbirds along the East Atlantic Flyway. In spite of this importance, a review of the changes in the numbers of waterbirds in the area is lacking since the first complete count in 1980. Here we analysed th...
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Online Access: | https://research.wur.nl/en/publications/changes-in-the-waterbird-community-of-the-parc-national-du-banc-d https://doi.org/10.1017/S0959270919000431 |
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ftunivwagenin:oai:library.wur.nl:wurpubs/559559 2024-01-28T10:05:01+01:00 Changes in the waterbird community of the Parc National du Banc d’Arguin, Mauritania, 1980–2017 Oudman, Thomas Schekkerman, Hans Kidee, Amadou Van Roomen, Marc Camara, Mohamed Smit, Cor Ten Horn, Job Piersma, Theunis El-Hacen, El-Hacen Mohamed 2020 text/html https://research.wur.nl/en/publications/changes-in-the-waterbird-community-of-the-parc-national-du-banc-d https://doi.org/10.1017/S0959270919000431 en eng https://edepot.wur.nl/512327 https://research.wur.nl/en/publications/changes-in-the-waterbird-community-of-the-parc-national-du-banc-d doi:10.1017/S0959270919000431 info:eu-repo/semantics/openAccess https://creativecommons.org/licenses/by/4.0/ Wageningen University & Research Bird Conservation International 30 (2020) 4 ISSN: 0959-2709 NMDS banc-darguin bird census east atlantic flyways global change population decline shorebirds waterbird community info:eu-repo/semantics/article Article/Letter to editor info:eu-repo/semantics/publishedVersion 2020 ftunivwagenin https://doi.org/10.1017/S0959270919000431 2024-01-03T23:15:02Z The Parc National du Banc d’Arguin in Mauritania hosts the largest concentrations of coastal waterbirds along the East Atlantic Flyway. In spite of this importance, a review of the changes in the numbers of waterbirds in the area is lacking since the first complete count in 1980. Here we analysed the seven complete waterbird counts made since then, and the additional yearly counts made in one subunit (Iwik region) since 2003.We present evidence for changes in the community composition of waterbirds over the past four decades. Total waterbird numbers showed a decrease between 1980 and 2017, with only Great White Pelican Pelecanus onocrotalus showing a significantincrease in numbers. Five species showed significant declines: Long-tailed Cormorant Phalacrocorax africanus, Red Knot Calidris canutus, Bar-tailed Godwit Limosa lapponica, Eurasian Curlew Numenius arquata, and Western Marsh Harrier Circus aeruginosus. In the remaining species, the variation in numbers between counts was too large, and the number of complete counts too small, for trends to be detected. The yearly counts at Iwik region also showed sharp decreases in the numbers of Red Knot, Bar-tailed Godwit, and Marsh Harrier, but not of Long-tailed Cormorant and Eurasian Curlew. A multivariate analysis revealed a significant effect of year on species composition, which was caused mainly by changes in the species depending on the intertidal mudflats for feeding (generally in decline) vs. the species depending on fish and crustaceans in the sublittoral and offshore zones (often showing increases). Article in Journal/Newspaper Calidris canutus Eurasian Curlew Numenius arquata Red Knot Wageningen UR (University & Research Centre): Digital Library Bird Conservation International 30 4 618 633 |
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Open Polar |
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Wageningen UR (University & Research Centre): Digital Library |
op_collection_id |
ftunivwagenin |
language |
English |
topic |
NMDS banc-darguin bird census east atlantic flyways global change population decline shorebirds waterbird community |
spellingShingle |
NMDS banc-darguin bird census east atlantic flyways global change population decline shorebirds waterbird community Oudman, Thomas Schekkerman, Hans Kidee, Amadou Van Roomen, Marc Camara, Mohamed Smit, Cor Ten Horn, Job Piersma, Theunis El-Hacen, El-Hacen Mohamed Changes in the waterbird community of the Parc National du Banc d’Arguin, Mauritania, 1980–2017 |
topic_facet |
NMDS banc-darguin bird census east atlantic flyways global change population decline shorebirds waterbird community |
description |
The Parc National du Banc d’Arguin in Mauritania hosts the largest concentrations of coastal waterbirds along the East Atlantic Flyway. In spite of this importance, a review of the changes in the numbers of waterbirds in the area is lacking since the first complete count in 1980. Here we analysed the seven complete waterbird counts made since then, and the additional yearly counts made in one subunit (Iwik region) since 2003.We present evidence for changes in the community composition of waterbirds over the past four decades. Total waterbird numbers showed a decrease between 1980 and 2017, with only Great White Pelican Pelecanus onocrotalus showing a significantincrease in numbers. Five species showed significant declines: Long-tailed Cormorant Phalacrocorax africanus, Red Knot Calidris canutus, Bar-tailed Godwit Limosa lapponica, Eurasian Curlew Numenius arquata, and Western Marsh Harrier Circus aeruginosus. In the remaining species, the variation in numbers between counts was too large, and the number of complete counts too small, for trends to be detected. The yearly counts at Iwik region also showed sharp decreases in the numbers of Red Knot, Bar-tailed Godwit, and Marsh Harrier, but not of Long-tailed Cormorant and Eurasian Curlew. A multivariate analysis revealed a significant effect of year on species composition, which was caused mainly by changes in the species depending on the intertidal mudflats for feeding (generally in decline) vs. the species depending on fish and crustaceans in the sublittoral and offshore zones (often showing increases). |
format |
Article in Journal/Newspaper |
author |
Oudman, Thomas Schekkerman, Hans Kidee, Amadou Van Roomen, Marc Camara, Mohamed Smit, Cor Ten Horn, Job Piersma, Theunis El-Hacen, El-Hacen Mohamed |
author_facet |
Oudman, Thomas Schekkerman, Hans Kidee, Amadou Van Roomen, Marc Camara, Mohamed Smit, Cor Ten Horn, Job Piersma, Theunis El-Hacen, El-Hacen Mohamed |
author_sort |
Oudman, Thomas |
title |
Changes in the waterbird community of the Parc National du Banc d’Arguin, Mauritania, 1980–2017 |
title_short |
Changes in the waterbird community of the Parc National du Banc d’Arguin, Mauritania, 1980–2017 |
title_full |
Changes in the waterbird community of the Parc National du Banc d’Arguin, Mauritania, 1980–2017 |
title_fullStr |
Changes in the waterbird community of the Parc National du Banc d’Arguin, Mauritania, 1980–2017 |
title_full_unstemmed |
Changes in the waterbird community of the Parc National du Banc d’Arguin, Mauritania, 1980–2017 |
title_sort |
changes in the waterbird community of the parc national du banc d’arguin, mauritania, 1980–2017 |
publishDate |
2020 |
url |
https://research.wur.nl/en/publications/changes-in-the-waterbird-community-of-the-parc-national-du-banc-d https://doi.org/10.1017/S0959270919000431 |
genre |
Calidris canutus Eurasian Curlew Numenius arquata Red Knot |
genre_facet |
Calidris canutus Eurasian Curlew Numenius arquata Red Knot |
op_source |
Bird Conservation International 30 (2020) 4 ISSN: 0959-2709 |
op_relation |
https://edepot.wur.nl/512327 https://research.wur.nl/en/publications/changes-in-the-waterbird-community-of-the-parc-national-du-banc-d doi:10.1017/S0959270919000431 |
op_rights |
info:eu-repo/semantics/openAccess https://creativecommons.org/licenses/by/4.0/ Wageningen University & Research |
op_doi |
https://doi.org/10.1017/S0959270919000431 |
container_title |
Bird Conservation International |
container_volume |
30 |
container_issue |
4 |
container_start_page |
618 |
op_container_end_page |
633 |
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1789331041740128256 |