Летнее размещение и численность тетеревиных птиц в Карелии. 1. Общее зонально-ландшафтное распределение
// Труды КарНЦ РАН. No 2. Сер. Биогеография. 2014. C. 86-100
Sazonov S.V. Summer distribution and abundances of grouse in Karelia. 1. General distribution by zones and landscapes // Transactions of Karelian Research Centre of Russian Academy of Science. No 2. Biogeography. 2014. Pp. 86-100
Key words: Tetraonidae, summer distribution, population density.
The results of summer transect surveys (STS) of tetraonids in Karelia and adjacent parts of the Arkhangelsk and Vologda Regions (4120 km of transect lines) are summarized for the first time in the boreal zone of European Russia. Materials on the summer distribution and population densities of tetraonids were analysed by zones and landscapes. Data from STS (1983–2009) were compared with data from winter track counts (WTC, 1995–2008). Average densities of tetraonid populations in Karelia according to STS and WTC were: 6.8 and 2.9 Capercaillie, 13.5 and 12.6 Hazel Grouse, 10.3 and 12.3 Black Grouse, 5.4 and 10.6 Willow Grouse in 1000 ha.