Зимовка гусеобразных Anseriformes на Командорских островах: современное состояние и исторический обзор.

Author(s):  
D. V. Pilipenko ◽  
◽  
E. G. Mamaev ◽  

New data and analysis of changes in the number of wintering Anseriformes on the Commander Islands, the northernmost wintering site in the Far East, are presented. The surveys were carried out in March 2015-2019, mainly overland and covering 61 % of the coast of Bering Island, with 100 % of the coast in 2015 as an exception. Boat surveys of A. canagicus were carried out separately in the southwestern part of the island in April. In total, 17 species were encountered, including 12 recorded regularly, and 5 not annually. On Medny Island, the survey was carried out once, on April 3-4, 2017, by boat, and covered the entire coast. There, 7 species were taken into account. The total number of wintering Anseriformes of the Commander Islands is about 21 thousand birds, including 18.5 thousand on Bering Island and 2.5 thousand on Medny Island. The majority is concentrated in the northern and central part of Bering Island; in the south, the number is much lower. The dominant species is H. histrionicus: 65-72 % on Bering Island and 63 % on Medny Island. Subdominant is P. stelleri (16-20 % on Bering Island) as well as S. mollissima (30 % on Medny Island). The density of birds in the northern and central parts of Bering Island is 90-111.5 individuals per km of the coastline; in the south of the island, there are about 12 individuals; and on Medny Island, 14.9 individuals per km of the coastline. Over the past 25 years, the numbers of A. canagicus, A. platyrhynchos, A. acuta, B. clangula, and M. serrator have increased. P. stelleri and C. hyemalis have decreased. A. penelope, M. americana, and B. albeola began to regularly occur at the wintering, and B. bernicla, A. crecca, and A. marila have been observed more often than before. M. deglandi and M. merganser are now more common during migration, and practically are not observed at the wintering.

2021 ◽  
Vol 55 (2) ◽  
pp. 405-426
Author(s):  
I. F. Skirina ◽  
N. A. Tsarenko ◽  
F. V. Skirin

This paper presents the results of the study of lichen flora in swamp complexes of Sakhalin Island, obtained during expeditionary research in 2005–2009 and 2014–2020. The revealed species composition of lichens includes 172 species. The 28 of them are new for Sakhalin and 93 are new for the island swamp complexes. Bryocaulon pseudosatoanum is included in the regional and federal Red lists. Lecidea nylanderi is new to the south of the Far East. The information about substrates, habitats and locations is given for all species. The data on the distribution in the south of the Far East and, in some cases for all Far East, are listed for selected species that are new for Sakhalin Island and the south of the Far East. For the first time, a characteristic of the distribution of lichens in oligotrophic, eutrophic and mesotrophic bogs of Sakhalin Island is given.


Zootaxa ◽  
2018 ◽  
Vol 4472 (2) ◽  
pp. 201 ◽  
Author(s):  
NIKOLAY A. RYABININ ◽  
DONG LIU ◽  
MEIXIANG GAO ◽  
DONG-HUI WU

The present paper reviews the taxonomic studies of the mite suborder Oribatida in the Russian Far East South and Chinese North-East Territories. At present, 746 species of oribatid mites are registered in China, including 175 species in the soils of Northeast China. In the Russian Far East, there were 605 species of oribatids, including 344 species in the south of the Far East. The fauna of the oribatid mites of the Northeast of China and the south of the Russian Far East has 446 species and subspecies representing 190 genera and 80 families. 72 species of oribatid are common for both territories. The modern fauna of the oribatid mites of the Northeast of China and the south of the Far East was formed as a result of prolonged interaction between the boreal and palaearchaearctic faunas. The oribatid fauna of this region is distinguished by the presence of a large number of endemics, some of which are relics of the late Tertiary time and which can be considered as autochthonous. The checklist includes data from more than 100 locations of this enormous region. In addition, a short climatic and historical review of oribatid mites study is presented. 


Antiquity ◽  
1946 ◽  
Vol 20 (77) ◽  
pp. 9-12 ◽  
Author(s):  
W. E. Le Gros Clark

To the anthropologist, the dating of the fossil remains of prehistoric man in the Far East has always seemed a vague and haphazard business. So far as Europe is concerned, we have accepted the correlations between cultural sequences and stratigraphical data which have been worked out after many years of intensive work by geologists and archaeologists. Indeed, so well has the evidence been clarified for us that we even feel we can to some extent assess the validity of arguments put forward for the chronological position of this or that piece of human fossil. But the Far East is very different. The cultural sequences characteristic of Europe are not to be found there, the animal and plant remains found at different stratigraphical levels have a strange oriental appearance and differ specifically too much from those in the European Pleistocene to permit of direct faunistic correlations, and in the tropical regions such as Java the fluctuations of climate related to the glacial periods were not striking enough to provide a reasonable time scale by reference to any deposits so distinctive as boulder clay. Thus the anthropologist in the past has simply noted the personal opinion of local geologists on the antiquity of fossil man or palaeolithic cultures in the Far East, without really being clear as to the evidence on which the opinion was based (and suspecting, sometimes, that the geologist was not always quite clear himself).


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