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 analys...
Published in: | Bird Conservation International |
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Main Authors: | , , , , , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
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2020
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Online Access: | https://hdl.handle.net/11370/c79bca01-5a8d-4842-b4cf-a93971d45f74 https://research.rug.nl/en/publications/c79bca01-5a8d-4842-b4cf-a93971d45f74 https://doi.org/10.1017/S0959270919000431 https://pure.rug.nl/ws/files/194619516/changes_in_the_waterbird_community_of_the_parc_national_du_banc_darguin_mauritania_19802017.pdf |
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ftunigroningenpu:oai:pure.rug.nl:publications/c79bca01-5a8d-4842-b4cf-a93971d45f74 2024-06-02T08:04:48+00:00 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 2020-12 application/pdf https://hdl.handle.net/11370/c79bca01-5a8d-4842-b4cf-a93971d45f74 https://research.rug.nl/en/publications/c79bca01-5a8d-4842-b4cf-a93971d45f74 https://doi.org/10.1017/S0959270919000431 https://pure.rug.nl/ws/files/194619516/changes_in_the_waterbird_community_of_the_parc_national_du_banc_darguin_mauritania_19802017.pdf eng eng https://research.rug.nl/en/publications/c79bca01-5a8d-4842-b4cf-a93971d45f74 info:eu-repo/semantics/openAccess Oudman , T , Schekkerman , H , Kidee , A , van Roomen , M , Camara , M , Smit , C , ten Horn , J , Piersma , T & El-Hacen , E-H M 2020 , ' Changes in the waterbird community of the Parc National du Banc d'Arguin, Mauritania, 1980-2017 ' , Bird Conservation International , vol. 30 , no. 4 , 0959270919000431 , pp. 618-633 . https://doi.org/10.1017/S0959270919000431 Banc d’ Arguin-Mauritania Bird census Global change East Atlantic Flyway NMDS Population decline Shorebirds Waterbird community WADDEN SEA RED KNOTS INTERTIDAL FLATS SEDIMENT DECLINES CANUTUS SIGNALS FLYWAY FISH SIZE article 2020 ftunigroningenpu https://doi.org/10.1017/S0959270919000431 2024-05-07T21:19:11Z 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 significant increase 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 change in species composition over time, 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 University of Groningen research database Bird Conservation International 30 4 618 633 |
institution |
Open Polar |
collection |
University of Groningen research database |
op_collection_id |
ftunigroningenpu |
language |
English |
topic |
Banc d’ Arguin-Mauritania Bird census Global change East Atlantic Flyway NMDS Population decline Shorebirds Waterbird community WADDEN SEA RED KNOTS INTERTIDAL FLATS SEDIMENT DECLINES CANUTUS SIGNALS FLYWAY FISH SIZE |
spellingShingle |
Banc d’ Arguin-Mauritania Bird census Global change East Atlantic Flyway NMDS Population decline Shorebirds Waterbird community WADDEN SEA RED KNOTS INTERTIDAL FLATS SEDIMENT DECLINES CANUTUS SIGNALS FLYWAY FISH SIZE 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 |
Banc d’ Arguin-Mauritania Bird census Global change East Atlantic Flyway NMDS Population decline Shorebirds Waterbird community WADDEN SEA RED KNOTS INTERTIDAL FLATS SEDIMENT DECLINES CANUTUS SIGNALS FLYWAY FISH SIZE |
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 significant increase 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 change in species composition over time, 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://hdl.handle.net/11370/c79bca01-5a8d-4842-b4cf-a93971d45f74 https://research.rug.nl/en/publications/c79bca01-5a8d-4842-b4cf-a93971d45f74 https://doi.org/10.1017/S0959270919000431 https://pure.rug.nl/ws/files/194619516/changes_in_the_waterbird_community_of_the_parc_national_du_banc_darguin_mauritania_19802017.pdf |
genre |
Calidris canutus Eurasian Curlew Numenius arquata Red Knot |
genre_facet |
Calidris canutus Eurasian Curlew Numenius arquata Red Knot |
op_source |
Oudman , T , Schekkerman , H , Kidee , A , van Roomen , M , Camara , M , Smit , C , ten Horn , J , Piersma , T & El-Hacen , E-H M 2020 , ' Changes in the waterbird community of the Parc National du Banc d'Arguin, Mauritania, 1980-2017 ' , Bird Conservation International , vol. 30 , no. 4 , 0959270919000431 , pp. 618-633 . https://doi.org/10.1017/S0959270919000431 |
op_relation |
https://research.rug.nl/en/publications/c79bca01-5a8d-4842-b4cf-a93971d45f74 |
op_rights |
info:eu-repo/semantics/openAccess |
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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1800749464401477632 |