Dynamics of structure of shrew taxocene in southern Sakhalin

Abstract

The complete cycle of the structure transformation of shrew model taxocene in southern Sakhalin was revealed by investigations of 2008-2014. It was shown that in the communities of these animals facultative and obligate dominants are absent and a dominant group is formed every year of common species. There are two main patterns of the taxocene structure: the monodominant type, predominating by the long-clawed shrew at low number of other species, and the polydominant type, in which one of the background species plays a role of codominant at a lower number of long-clawed shrews. It is found out that the dominance structure in shrew taxocene is not closely related to the phase of its quantitative dynamics.

Late Quaternary shrews (Soricomorpha: Soricidae) from Priamurye (Russian Far East) according to data from Koridornaya Cave: species diversity and stratigraphical aspects

“…It has been established that the species pro le of shrews during the second half of the Late Pleistocene and Holocene in the Southern Sikhote-Alin did not change much; 12 species have been found, and three of them -Sorex roboratus Hollister, 1913, S. daphaenodon Thomas, 1907, and S. tundrensis Merriam, 1900 -had been more widespread up until the Middle Holocene than they are at present (Nesterenko et al, 2002;Omelko et al, 2020). During periods of climate cooling, some heat-loving species disappeared from this territory and later repopulated it (Omelko et al, 2020).…”