Détail de l'auteur
Documents disponibles écrits par cet auteur (2)
Ajouter le résultat dans votre panier Affiner la recherche
Article
Ron W. Summers, Auteur ; Desmond Dugan, Auteur ; Robert Proctor, AuteurCapsule In most years, changes in numbers are associated with variations in breeding success. Aims To describe the annual variation in numbers and breeding success of Capercaillies Tetrao urogallus and Black Grouse Tetrao tetrix at Abernethy For[...]
Article
Ron W. Summers, Auteur ; Robert J. G. Dawson, Auteur ; Robert Proctor, AuteurThe breeding biology and cone size selection of crossbills was studied mainly during 1995 to 2002 at Abernethy Forest, Scotland, an ancient native Scots pine Pinus sylvestris wood, where only a single crossbill species, the Scottish crossbill Lo[...]
