Key features of intertidal food webs that support migratory shorebirds.
The migratory shorebirds of the East Atlantic flyway land in huge numbers during a migratory stopover or wintering on the French Atlantic coast. The Brouage bare mudflat (Marennes-Oléron Bay, NE Atlantic) is one of the major stopover sites in France. The particular structure and function of a food w...
| Main Authors: | , , , , , , , , , , , , , , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Public Library of Science (PLoS)
2013-01-01
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| Series: | PLoS ONE |
| Online Access: | http://europepmc.org/articles/PMC3808337?pdf=render |
| _version_ | 1819209105285316608 |
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| author | Blanche Saint-Béat Christine Dupuy Pierrick Bocher Julien Chalumeau Margot De Crignis Camille Fontaine Katell Guizien Johann Lavaud Sébastien Lefebvre Hélène Montanié Jean-Luc Mouget Francis Orvain Pierre-Yves Pascal Gwenaël Quaintenne Gilles Radenac Pierre Richard Frédéric Robin Alain F Vézina Nathalie Niquil |
| author_facet | Blanche Saint-Béat Christine Dupuy Pierrick Bocher Julien Chalumeau Margot De Crignis Camille Fontaine Katell Guizien Johann Lavaud Sébastien Lefebvre Hélène Montanié Jean-Luc Mouget Francis Orvain Pierre-Yves Pascal Gwenaël Quaintenne Gilles Radenac Pierre Richard Frédéric Robin Alain F Vézina Nathalie Niquil |
| author_sort | Blanche Saint-Béat |
| collection | DOAJ |
| description | The migratory shorebirds of the East Atlantic flyway land in huge numbers during a migratory stopover or wintering on the French Atlantic coast. The Brouage bare mudflat (Marennes-Oléron Bay, NE Atlantic) is one of the major stopover sites in France. The particular structure and function of a food web affects the efficiency of carbon transfer. The structure and functioning of the Brouage food web is crucial for the conservation of species landing within this area because it provides sufficient food, which allows shorebirds to reach the north of Europe where they nest. The aim of this study was to describe and understand which food web characteristics support nutritional needs of birds. Two food-web models were constructed, based on in situ measurements that were made in February 2008 (the presence of birds) and July 2008 (absence of birds). To complete the models, allometric relationships and additional data from the literature were used. The missing flow values of the food web models were estimated by Monte Carlo Markov Chain--Linear Inverse Modelling. The flow solutions obtained were used to calculate the ecological network analysis indices, which estimate the emergent properties of the functioning of a food-web. The total activities of the Brouage ecosystem in February and July are significantly different. The specialisation of the trophic links within the ecosystem does not appear to differ between the two models. In spite of a large export of carbon from the primary producer and detritus in winter, the higher recycling leads to a similar retention of carbon for the two seasons. It can be concluded that in February, the higher activity of the ecosystem coupled with a higher cycling and a mean internal organization, ensure the sufficient feeding of the migratory shorebirds. |
| first_indexed | 2024-12-23T05:49:59Z |
| format | Article |
| id | doaj.art-630ca58d734e47d699f1488f2626ea84 |
| institution | Directory Open Access Journal |
| issn | 1932-6203 |
| language | English |
| last_indexed | 2024-12-23T05:49:59Z |
| publishDate | 2013-01-01 |
| publisher | Public Library of Science (PLoS) |
| record_format | Article |
| series | PLoS ONE |
| spelling | doaj.art-630ca58d734e47d699f1488f2626ea842022-12-21T17:57:58ZengPublic Library of Science (PLoS)PLoS ONE1932-62032013-01-01810e7673910.1371/journal.pone.0076739Key features of intertidal food webs that support migratory shorebirds.Blanche Saint-BéatChristine DupuyPierrick BocherJulien ChalumeauMargot De CrignisCamille FontaineKatell GuizienJohann LavaudSébastien LefebvreHélène MontaniéJean-Luc MougetFrancis OrvainPierre-Yves PascalGwenaël QuaintenneGilles RadenacPierre RichardFrédéric RobinAlain F VézinaNathalie NiquilThe migratory shorebirds of the East Atlantic flyway land in huge numbers during a migratory stopover or wintering on the French Atlantic coast. The Brouage bare mudflat (Marennes-Oléron Bay, NE Atlantic) is one of the major stopover sites in France. The particular structure and function of a food web affects the efficiency of carbon transfer. The structure and functioning of the Brouage food web is crucial for the conservation of species landing within this area because it provides sufficient food, which allows shorebirds to reach the north of Europe where they nest. The aim of this study was to describe and understand which food web characteristics support nutritional needs of birds. Two food-web models were constructed, based on in situ measurements that were made in February 2008 (the presence of birds) and July 2008 (absence of birds). To complete the models, allometric relationships and additional data from the literature were used. The missing flow values of the food web models were estimated by Monte Carlo Markov Chain--Linear Inverse Modelling. The flow solutions obtained were used to calculate the ecological network analysis indices, which estimate the emergent properties of the functioning of a food-web. The total activities of the Brouage ecosystem in February and July are significantly different. The specialisation of the trophic links within the ecosystem does not appear to differ between the two models. In spite of a large export of carbon from the primary producer and detritus in winter, the higher recycling leads to a similar retention of carbon for the two seasons. It can be concluded that in February, the higher activity of the ecosystem coupled with a higher cycling and a mean internal organization, ensure the sufficient feeding of the migratory shorebirds.http://europepmc.org/articles/PMC3808337?pdf=render |
| spellingShingle | Blanche Saint-Béat Christine Dupuy Pierrick Bocher Julien Chalumeau Margot De Crignis Camille Fontaine Katell Guizien Johann Lavaud Sébastien Lefebvre Hélène Montanié Jean-Luc Mouget Francis Orvain Pierre-Yves Pascal Gwenaël Quaintenne Gilles Radenac Pierre Richard Frédéric Robin Alain F Vézina Nathalie Niquil Key features of intertidal food webs that support migratory shorebirds. PLoS ONE |
| title | Key features of intertidal food webs that support migratory shorebirds. |
| title_full | Key features of intertidal food webs that support migratory shorebirds. |
| title_fullStr | Key features of intertidal food webs that support migratory shorebirds. |
| title_full_unstemmed | Key features of intertidal food webs that support migratory shorebirds. |
| title_short | Key features of intertidal food webs that support migratory shorebirds. |
| title_sort | key features of intertidal food webs that support migratory shorebirds |
| url | http://europepmc.org/articles/PMC3808337?pdf=render |
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