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            <gco:CharacterString>Maîtres d'ouvrage :
MEDDE Avril 2011
AAMP  Janvier 2010

Maîtres d'œuvre :
GISOM  Janvier 2008

Financeur(s) :
MEDDE Avril 2011
AAMP  Janvier 2010

Les producteurs de données sont l’ensemble des structures (associations, équipes de recherche, services de l’Etat) qui contribuent à collecter des informations sur les oiseaux marins nicheurs et à les mettre à disposition du Gisom qui coordonne la compilation et la synthèse des données pour établir les bilans</gco:CharacterString>
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Protocole : 
La couverture et la stratégie de surveillance découlent d’une étude mise en place en 2018 pilotée par le CEFE et le GISOM sur la définition d’une stratégie de surveillance des oiseaux marins nicheurs (étude STRATECH). Les résultats de cette étude indiquent les éléments suivants : 
- Pour l’ensemble des 14 espèces modèles de l’étude, un pas de temps de 6 ans suffit à obtenir des tendances représentatives et à détecter des déclins ou des augmentations (significatifs statistiquement) de 2 % par an et cela au bout de 18 ans. 
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Effectifs nicheurs (nombre de couples)
Oiseaux / SP02 Oiseaux marins nicheurs : 
 * ABU1-6 - Abondance (nombre)

Fréquence d'actualisation :
Sur une base décennale

Fréquence d'observation :
Annuelle à décennale selon les colonies concernées</gco:CharacterString>
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