Article
Comparing methods for estimating the abundance of Western Capercaillie Tetrao urogallus males in Pyrenean leks: singing counts versus genetic analysis of non-invasive samples
Auteurs : Aleix-Mata (Gaël), Adrados (Begona), Boos (Mathieu), Mourieres (Pierre), Marty (Evelyn), Tucat (Gregory), Thion (Nicolas), Mossoll-Torres (Marc), Pérez (Jesus M) et Sanchez (Antonio)
Année de publication : 2019
Publication : Bird Study
Volume :
66
Fascicule : 4
Pagination : 565-569
Résumé :
ABSTRACT. Population estimates of male Western Capercaillies Tetrao urogallus were carried out during the mating season using two methods: counts of singing males and non-invasive genetic analysis. Estimates of male numbers were 50% lower using the singing counts compared to the estimates obtained through genetic analysis, and underestimates were greatest when the number of Capercaillies was lowest.