Tag: Capercaillie

Intestinal parasites in the Cantabrian Capercaillie, Tetrao urogallus cantabricus: a coprological study.

Capercaillie (Tetrao urogallus) Science Article 8 abstract The intestinal parasites of the Cantabrian Capercaillie were Estudied by counting the eggs of parasitic species found in 154 f cal samples from 34 localities in the Cantabrian mountains. Prevalence was 58% for Eimeria sp. and 25% for Capillaria sp.; however, both intensity and mean intensity of these […]

Spacing of adult and subadult male Common Capercaillie during the breeding season

Capercaillie (Tetrao urogallus) Science Article 2 abstract The spacing behavior of 58 male Common Capercaillie (Tetrao urogaIlus) was studied at Varaldskogen in southeast Norway during 1979-1985. Birds captured at leks were equipped with radio-transmitters, and their movements were monitored throughout the year. During spring, males 4 yr old and older occupied exclusive day territories of […]

Phylogeography of the European capercaillie (Tetrao urogallus ) and its implications for conservation

Capercaillie (Tetrao urogallus) Science Article 11 abstract The phylogeographic pattern of mitochondrial DNA variation in capercaillie (Tetrao urogallus) from 14 populations across the European range was examined using sequence variation in the central portion of the control region and the cytochrome B gene. Twenty-nine different haplotypes were resolved, which formed two distinct phylogenetic clades. The […]

Habitat features of the capercaillie (Tetrao urogallus) leks in the West Carpathians

Capercaillie (Tetrao urogallus) Science Article 4 abstract Habitat characteristics of 43 capercaillie (Tetrao urogallus) leks were studied in the mountains of Central Slovakia (West Carpathians) in 1984-2002. Macro-habitat was described with respect to topography and succession stage. Micro-habitat was described with respect to forest type and forest stand structure. Twenty-seven out of forty-three display grounds […]

From connectivity to isolation: genetic consequences of population fragmentation in capercaillie across Europe

Capercaillie (Tetrao urogallus) Science Article 3 abstract The capercaillie inhabits a continuous range in large parts of the Palearctic boreal forest, but is patchily distributed in temperate Europe. An ongoing population decline, largely related to human land use changes, has been most pronounced in central and western Europe, where some local populations have become extinct. […]

Ecology of the capercaillie (Tetrao urogallus) and forest management in relation to its protection in the West Carpathians

Capercaillie (Tetrao urogallus) Science Article 5 abstract Ecology of capercaillie (Tetrao urogallus) was studied in the mountains of Central Slovakia (West Carpathians) in 1981-2003. In the studied area, the capercaillie population inhabited especially old natural forests (100-250 years old) in the spruce-beech-fir (850-1,270 m a.s.l.) and spruce (1,250-1,530 m a.s.l.) vegetation zones. The overstorey stand […]

Lack of genetic structuring and subspecies differentiation in the Capercaillie, Tetrao urogallus, in Finland

Capercaillie (Tetrao urogallus) Science Article 6 abstract We sequenced and analysed variation in a 430 bp segment of the mitochondrial DNA control region of 302 Finnish capercaillies Tetrao urogallus. The data were divided into four zones representing the three suggested subspecies (T. u. urogallus, T. u. uralensis/karelicus, T. u. major), and the zone for hybrids […]

Minimum viable population size of capercaillie Tetrao urogallus: results from a stochastic model

Capercaillie (Tetrao urogallus) Science Article 1 abstract In order to estimate minimum area requirements for viable isolated populations of capercaillie Tetrao urogallus in Central Europe, we developed a stochastic population model. Model parameters were largely based on the results of a field study in the Bavarian Alps. Environmental fluctuations (amount of rainfall in June and […]

Social interactions among Capercaillie Tetrao urogallus males outside the lek during spring

Capercaillie (Tetrao urogallus) Science Article 12 abstract Capercaillies have a lek-likemating system,with partly overlappingmale daytime ranges extending radially out fromsmaller display territories at the lek.With VHF telemetry, we studied the spatial interactions among neighbouring adult males (n = 10) of different social status in their overlap zones outside the lek. In addition, we recorded responses […]

Diet of the Cantabrian Capercaillie: geographic variation and energetic content

Capercaillie (Tetrao urogallus) Science Article 7 abstract The diet of the Cantabrian Capercaillie Tetrao urogallus cantabricus was examined by fecal analysis. Droppings were sampled from April 1998 to May 1999 around 23 leks that were grouped in five zones. Winter diet consisted of beech buds, pine needles, buds and catkins of birch and holly leaves. […]