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Institut de recherche pour la conservation des zones humides méditerranéennes

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Titre :	Status and trends of breeding bird populations in France: summary review of the first national reporting under the Birds Directive (2016)
Auteurs :	Jacques Comolet-Tirman, Auteur ; Jean-Philippe Siblet, Auteur ; Isabelle Witte, Auteur ; Bernard Cadiou, Auteur ; Michel Alexandre Czajkowski, Auteur ; Bernard Deceuninck, Auteur ; Frédéric Jiguet, Auteur ; Philippe Landry, Auteur ; Gwenael Quaintenne, Auteur ; Jean-Emmanuel Roché, Auteur ; Mathieu Sarasa, Auteur ; Julien Touroult, Auteur
Type de document :	Article
Dans :	Alauda (84(1) janvier 1, 2016)
Article en page(s) :	35-76
Résumé :	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 as the national atlas of breeding birds 2009-2012 have been made available for the reporting process, leading to new insights into bird population estimates and range shifts. The national bird population has been estimated between 66 and 124 millions of breeding pairs. Long term trends results include 89 breeding taxa in decline (30%), 97 increasing (33%), 41 stable (14%), 14 fluctuating (5%) and 53 unknown (18%). Population trends and distribution trends prove to be positively correlated, and we have tried to explain why a few colonial or sometimes territorial species seem to show inverted trends for these parameters. Main drivers of change are discussed including Special Protection Areas designation, nature protection laws (1976) and protected areas but also agricultural policies. Patterns of long-term trends include a high percentage of rather widespread species in decline while localized species fare better. A few southern species show strong increases while there is some concern about the future of more northerly species, many of which seem to decline both in numbers and range. Trend analysis confirms the growing concern about long-distance migrants in the long-term, but the situation is not so clear when analyzing passerines as a separate group, nor when analyzing short-term trends. Data quality, knowledge gaps and future improvements are discussed.

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