La Tour du Valat

Institut de recherche pour la conservation des zones humides méditerranéennes

Titre :	Should we account for detectability in population trends? (2013)
Auteurs :	Stuart E. Newson, Auteur ; Dario Massimino, Auteur ; Alison Johnston, Auteur ; Stephen R. Baillie, Auteur ; James W. Pearce-Higgins, Auteur
Type de document :	Article
Dans :	Bird Study (60(3) AUG 1 2013)
Article en page(s) :	384-390
Langues:	Anglais
Résumé :	CapsuleAccounting for changes in detectability over time which could invalidate population trends for common and widespread breeding birds in the UK, resulted in little change in trends for the majority of species considered. AimsTo examine whether detectability has a significant influence on population trends for common and widespread breeding birds in the UK. MethodsUsing data collected over 16 years of the UK Breeding Bird Survey (1994-2009) and focusing on a random sample of 20 common and widespread bird species, we examine the extent to which controlling for temporal change in detectability would influence national population trends. ResultsPopulation trends were significantly different for only 2 of the

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