Key Features of Intertidal Food Webs That Support Migratory Shorebirds

Abstract : 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.
Complete list of metadatas

Cited literature [83 references]  Display  Hide  Download

https://hal.archives-ouvertes.fr/hal-01097501
Contributor : Johann Lavaud <>
Submitted on : Friday, December 19, 2014 - 5:20:25 PM
Last modification on : Wednesday, July 17, 2019 - 4:00:03 PM
Long-term archiving on : Monday, March 23, 2015 - 6:32:43 PM

File

2013d-PlosOne.pdf
Publication funded by an institution

Identifiers

Citation

Blanche Saint-Béat, Dupuy Christine, Pierrick Bocher, Julien Chalumeau, Margot de Crignis, et al.. Key Features of Intertidal Food Webs That Support Migratory Shorebirds. PLoS ONE, Public Library of Science, 2013, 8, pp.e76739. ⟨http://www.plosone.org/article/info%3Adoi%2F10.1371%2Fjournal.pone.0076739⟩. ⟨10.1371/journal.pone.0076739⟩. ⟨hal-01097501⟩

Share

Metrics

Record views

547

Files downloads

393