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Snegovaya N.Y.,Azerbaijan Academy of Sciences | Chumachenko Y.A.,Caucasian State Nature Biosphere Reserve
Contemporary Problems of Ecology | Year: 2013

This article reviews data on studies devoted to the seasonal changes of the opiliones populations in the yew and box tree grove of the Caucasian State Nature Biosphere Reserve. This study touches upon the structure of populations, seasonal changes in populations, and gives data on opiliones distribution and occurrence. © 2013 Pleiades Publishing, Ltd. Source


Akatov V.V.,Maikop State Technological University | Akatova T.V.,Caucasian State Nature Biosphere Reserve
Russian Journal of Biological Invasions | Year: 2013

The published data on the resistance of plant communities to invasions of alien species are discussed. It is shown that the variation in the number of such species on small areas of cenoses depends on the balance between their local richness and species pool size. This ratio has been used to predict the degree of invasibility of natural plant communities in Western Caucasus (alpine low-grass meadows and heaths, subalpine middle-grass meadows of high-altitude mountain massifs and ridges isolated or not by forest communities, and tree layer of mountain forests). The results demonstrate that the communities with high species richness, isolated, evolutionarily young, and disturbed in their previous history display a higher invasive potential. © 2013 Pleiades Publishing, Ltd. Source


Akatov V.V.,Maikop State Technological University | Akatova T.V.,Caucasian State Nature Biosphere Reserve
Russian Journal of Ecology | Year: 2015

The number and occurrence of plant species are compared in isolated with forest and nonisolated areas of subalpine meadows in Western Caucasus alpine massifs. It is shown that isolation of meadow communities on small isolated massifs (0.01–36.5 km2) for about a thousand years has led to a decline in their species richness. However, this process is mainly due to the loss of rare plant species and was not accompanied by the density compensation effect. It is suggested that a wide manifestation of compensation processes requires a period of time significantly longer than the isolation time for most fragments of anthropogenic communities. © 2015, Pleiades Publishing, Ltd. Source


Akatov V.V.,Maikop State Technological University | Akatova T.V.,Caucasian State Nature Biosphere Reserve | Eskin N.B.,Caucasian State Nature Biosphere Reserve
Contemporary Problems of Ecology | Year: 2014

The occurrence of a density compensation effect (DCE) has been estimated in north Caucasian areas of extreme habitats occupied by communities of vascular plants, mosses, and lichens. The species densities have been estimated according to their frequency. The correlation between species number and frequency in the studied areas has failed to confirm the assumption that extreme environmental conditions alone is responsibile for the DCE, at least locally. © 2014, Pleiades Publishing, Ltd. Source


Trepet S.A.,Caucasian State Nature Biosphere Reserve | Eskina T.G.,Caucasian State Nature Biosphere Reserve
Zoologicheskii Zhurnal | Year: 2011

The influence of natural and anthropogenic factors on the dynamics of the number and spatial structure of a red deer (Cervus elaphus maral) population in the Caucasian Reserve was investigated. The high adaptation of deer to the action of the main natural limiting factors (winters with deep show cover and wolves) is noted. The close correlation between the dynamics of the deer population and anthropogenic factors (mainly, poaching) is shown. Biotechnical measures were concluded to be inefficient, and the economic activities and protection systems should be improved at the Caucasian Reserve. Source

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