Gwenaël Quaintenne

LPO - BirdLife France, Ligue Pour la Protection des Oiseaux · Dept of Conservation

Mid-January IWC counts of 18 coastal wader species have been analyzed in order to assess trends at national level and on each of the three main coastlines: North Sea and Channel, Atlantic and Mediterranean coasts. Most of the studied species are increasing in France since 1980. Oystercatcher and Ruff are the only species which remained stable on lo...

The Rare and Endangered Breeding Bird Survey attends to centralizing and publishing results of the national monitoring schemes of some 70 species for which recent population dynamics are known. Some of them are new breeders in France with increasing populations and others are either confined, rare, threatened, or endangered breeding birds. This 201...

Connaître le nombre absolu d'oiseaux dans une population donnée peut sembler secondaire si l'on sait quantifier sa tendance ou décrire son état de conservation. Pourtant, il s'agit d'un paramètre crucial pour évaluer les risques d'extinction ou pour prendre des décisions en termes de politiques de conservation. Une connaissance détaillée de la tail...

A review of the 2nd national reporting under the Birds Directive / Part 2 – An analysis of pressures and threats and conservation measures. After having discussed in the previous article the status and trends of our bird populations, we explore here the reasons behind the observed evolutions. We analyze on the one hand the constraints undergone by...

Roger Mahéo, Sophie Le Dréan-Quénec’hdu, Gwenaël Quaintenne, E. Joyeux & Charlotte Francesiaz

The rare and endangered breeding bird survey centralizes and publishes results of national monitoring schemes of some 70 species for which recent population dynamics are known thanks to exhaustive, or near-exhaustive monitoring. Some of them are new breeders in France with increasing populations and others are either confined, rare, threatened, or...

La synthèse « Limicoles côtiers » est produite annuellement depuis 1978, grâce à l’implication soutenue et à la rigueur de Roger Mahéo. Il a bénéficié de la collaboration technique de Claudie Evanno (1978-1997), François Gabillard (1998-2000), Nadège Maillet (1999-2003) et Sophie Le Dréan-Quenec’hdu (depuis 2001) qui ont aidé à la mise en forme des...

Results of 2018 International Waterbirds Census in France. Main document & technical annex describing results/trends of mid-january waterbirds census in France through 95 species factsheets.

Annual synthesis on International Waterbird census in France

Each winter, in mid-January, swans, geese, ducks, coots and waders are counted in France during Wetlands International census, and their trends are now well known. For divers, grebes, larger wading birds (herons, egrets, spoonbills, flamingoes, storks, ibises and cranes) these trends are not so well known because they are much more difficult to cou...

Third International Congress on Bird Migration and Global Change, 3-5th September, Tarifa, Spain.

The rare and endangered breeding bird survey centralizes and publishes results of national monitoring schemes of some 70 species for which recent population dynamics are known thanks to exhaustive, or near-exhaustive monitoring. Some of them are new breeders in France with increasing populations and others are either confined, rare, threatened, or...

Preliminary technical reports on 1980-2017 trends of waterbird numbers from the mid-January International Waterbird Census in France.

DÉNOMBREMENTS D’ANATIDÉS ET DE FOULQUES HIVERNANTS EN FRANCE À LA MI-JANVIER 2016 Résumé Comptage des oiseaux d’eau hivernant en France – Janvier 2016 Les comptages de la mi-janvier 2016 ont été réalisés sur 472 sites fonctionnels, soit une couverture de 90 % des entités de comptages décrites. L’effectif national dénombré d’anatidés et de foulques...

Rare and endangered breeding bird survey in France in 2014. The rare and endangered breeding bird survey centralizes and publishes results of national monitoring schemes of some 70 species for which recent population dynamics are known thanks to exhaustive, or near-exhaustive monitoring. Some of them are new breeders in France with increasing popul...

Illegal killing/taking of birds is a growing concern across the Mediterranean. However, there are few quantitative data on the species and countries involved. We assessed numbers of individual birds of each species killed/taken illegally in each Mediterranean country per year, using a diverse range of data sources and incorporating expert knowledge...

Census of Anatids and coots wintering in France – January 2015. In 2015, mid-January waterbird counts have been made on 475 sites, or a 99.7% coverage of the described functional count sites. Total national count of Anatids and Coots was 1,139,872 birds. Total count is now stabilized, after a sensitive decrease which occurred during the three prev...

Since 2012, camera-trap surveys have been carried out to study the use by wildlife of 9 newly-constructed underpasses on two motorways in south-western France (8 modified culverts and 1 underpass for small animals). A total of 5338 successful crossings of 16 small, medium and large mammal species were detected over a 9 to 24 month period (the durat...

Use by small and medium mammals of wildlife crossing structures on two motorways in south-western France. Results of the first two years of camera-trap surveys.— Since 2012, camera-trap surveys have been carried out to study the use by wildlife of 9 newly-constructed underpasses on two motorways in south-western France (8 modified culverts and 1 un...

Status and trends of breeding bird populations in France: summary review of the first national reporting under the Birds Directive. With the National Museum of Natural History (MNHN) as pilot, a group of over 100 scientists and experts participated in the national bird reporting process, gathering and validating information on more than 300 bird sp...

Status and trends of breeding bird populations in France: summary review of the first national reporting under the Birds Directive. With the National Museum of Natural History (MNHN) as pilot, a group of over 100 scientists and experts participated in the national bird reporting process, gathering and validating information on more than 300 bird sp...

With the National Museum of Natural History (MNHN) as pilot, a group of over 100 scientists and experts participated in the national bird reporting process, gathering and validating information on more than 300 bird species including 295 breeding taxa. Over 650 distinct references have been entered in the data base. Data from ongoing projects such...

With the National Museum of Natural History (MNHN) as pilot, a group of over 100 scientists and experts participated in the national bird reporting process, gathering and validating information on more than 300 bird species including 295 breeding taxa. Over 650 distinct references have been entered in the data base. Data from ongoing projects such...

In 2013, mid-January waterbird counts have been made on 454 sites, or a 99% coverage of the described functional count sites. Total national count of Anatidae and Coots was 1,188,036 birds. A light decrease occurred with respect to 2012 counts. Some sites meet thresholds of international importance (Ramsar criterion nr 6) for the following species...

In this study, we describe food availability and diet selection of the Red Knot Calidris canutus islandica wintering in three estuarine bays on the French Channel coast. We examined whether the distribution of birds is related to the density and availability of high quality prey. Results indicate strong seasonal and inter-annual variation in the ab...

RAPPORT FINAL DANS LE CADRE DE LA CONVENTION POUR L’ETUDE SUR L’IMPORTANCE DES PERTUIS CHARENTAIS ET DE LEURS ESPACES PROTEGES DANS L’ACCUEIL ET LA PRESERVATION DES OISEAUX LIMICOLES. Ce projet s’articule en trois volets qui permettront de répondre au mieux aux objectifs globaux fixés qui sont : 1- Description des habitats intertidaux de l’ensembl...

Since 1994, the rare and endangered breeding bird survey attends to centralize and publish results of national monitoring schemes of some 70 species for which recent population dynamics are known. Some of them are new breeders to France with increasing populations and others are either confined or rare breeding birds. Two new species – Whooper Swan...

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...

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...

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...

Background/Question/Methods The migratory shorebirds of the East Atlantic flyway massively land for migratory stopover or wintering on the French Atlantic coast. The Brouage bare mudflat is one of the major stopover sites in France. The activity of Brouage mudflat at low tide is based on the development of a microalgal biofilm which feeds the ben...

Wader Study Group Bulletin 119 (2012): 17-25 The two subspecies of the Red Knot Calidris canutus that occur in Europe during northward and southward migration, islandica and canutus, are only observed simultaneously at a few sites such as the Wadden Sea. Mostly islandica winters on estuarine bays in NW Europe, while canutus go to wintering grounds...

In western Europe, the coasts of Vendée and Charente-Maritime on the central Atlantic shoreline of France constitute the most southern wintering site for the Red Knot Calidris canutus islandica, welcoming around 37,000 individuals each winter, and also represent a key stopover area for C. c. canutus (up to 60,000 individuals) between Africa and the...

Local studies have shown that the distribution of red knots Calidris canutus across intertidal mudflats is consistent with the predictions of an ideal distribution, but not a free distribution. Here, we scale up the study of feeding distributions to their entire wintering area in western Europe. Densities of red knots were compared among seven wint...

1. Studies of diet choice usually assume maximization of energy intake. The well-known ‘contingency model’ (CM) additionally assumes that foraging animals only spend time searching or handling prey. Despite considerable empirical support, there are many foraging contexts in which the CM fails, but such cases were considered exceptions rather than t...