scholarly journals Range Extension For Riccia Nipponica And Comments On The R. Crystallina Complex (Ricciaceae, Hepaticae)

2015 ◽  
Vol 60 (2) ◽  
pp. 173-178 ◽  
Author(s):  
Eugene A. Borovichev ◽  
Vadim A. Bakalin
Keyword(s):  
East Asia ◽  
Russian Far East ◽  
Morphological Variability ◽  
Far East ◽  
Distribution Patterns ◽  
Guizhou Province ◽  
Distribution Area ◽  
Morphological Description ◽  
Southern Flank ◽  
The Russian Far East

AbstractFor Riccia nipponica S. Hatt., previously regarded as a Japanese endemic, the paper gives the first records from the southern flank of the Russian Far East and Guizhou Province of China. These records considerably enlarge its known distribution area. New data on its morphological variability, ecology and distribution patterns are summarized and analyzed based on study of available material from East Asia. A morphological description and figures are given, with a key in table form for it and related taxa. Although closely related to the sub-cosmopolitan R. crystallina L., R. nipponica merits species rank.

scholarly journals The origins of pottery in East Asia: updated analysis (the 2015 state-of-the-art)

2015 ◽  
Vol 42 ◽  
Author(s):  
Yaroslav Kuzmin
Keyword(s):  
East Asia ◽  
South China ◽  
State Of The Art ◽  
Russian Far East ◽  
Critical Evaluation ◽  
Far East ◽  
Transbaikal Region ◽  
Recent Developments ◽  
Japanese Islands ◽  
The Russian Far East

Recent developments related to the emergence of pottery in East Asia and neighbouring regions are presented. According to a critical evaluation of the existing evidence, the oldest centres with pottery in East Asia are situated in South China (dated to c. 18 000 calBP), the Japanese Islands (c. 16 700 calBP), and the Russian Far East (c. 15 900 calBP). It is most likely that pottery-making appeared in these regions independently of each other. In Siberia, the earliest pottery now known isfrom the Transbaikal region (dated to c. 14 000 calBP). However, it did not influence the more westerly parts of Siberia in terms of the origin and spread of pottery-making.

scholarly journals Chronology of the Beginning of Pottery Manufacture in East Asia

Radiocarbon ◽  
2004 ◽  
Vol 46 (1) ◽  
pp. 345-351 ◽  
Author(s):  
Charles T Keally ◽  
Yasuhiro Taniguchi ◽  
Yaroslav V Kuzmin ◽  
Igor Y Shewkomud
Keyword(s):  
East Asia ◽  
Southern China ◽  
Russian Far East ◽  
Far East ◽  
Late Glacial ◽  
Ceramic Production ◽  
Late Glacial Period ◽  
Radiocarbon Chronology ◽  
Japanese Islands ◽  
The Russian Far East

This paper presents an updated radiocarbon chronology of the earliest pottery sites in the Old World. Ceramic production originated in the Late Glacial period in several regions of East Asia—the Japanese Islands, the Russian Far East, and southern China—at approximately the same time, about 13,700–13,300 BP (about 17,200–14,900 cal BP).

scholarly journals Additional data on morphology and distribution of Melitoides valida (Shoemaker, 1955) (Amphipoda, Melitidae)

2021 ◽  
Vol 6 (1) ◽  
pp. 58-66
Author(s):  
V. S. Labay
Keyword(s):  
Sea Of Okhotsk ◽  
Russian Far East ◽  
Far East ◽  
The Arctic ◽  
Morphological Description ◽  
Northwestern Pacific ◽  
Zoological Museum ◽  
The Sea Of Okhotsk ◽  
Arctic Coast ◽  
The Russian Far East

The genus Melitoides Gurjanova, 1934 (Amphipoda, Melitidae) includes three species from the Arctic and northwestern Pacific: Melitoides makarovi Gurjanova, 1934, M. valida (Shoemaker, 1955), and M. kawaii Labay, 2014. M. makarovi and M. kawaii only were recorded until recently in the seas of the Russian Far East. Only two specimens of M. valida were found once near the Arctic coast of Alaska; therefore, the morphological description of the species was incomplete, which led to difficulties with its generic identification. For the first time, M. valida was found in the seas of the Russian Far East in September 2018 on the shelf of the Sea of Okhotsk, near the North-Eastern Sakhalin Island at the depth of 29 m on the sand bottom. Detailed re-description of the species was carried out using optical and electronic scanning microscopes by the Coleman protocol. The material collected is stored at the Crustacea collection of the Zoological Museum of Far Eastern Federal University (Vladivostok). The specimen from the Sea of Okhotsk is identical to the specimens of the type series from the Arctic coast of Alaska in the form of dorsal carination (with several teeth on posterior margin of pleon segments 2, 3 and urosomites 1, 2), in the structure of pereopods 1–7, especially in the form of propodus of pereopods 2 (palm with distinct posterior-distal tooth, as well as with three large and one small obtuse palmar teeth). M. valida description has been substantially supplemented, and information on its range has been expanded.

Rinodina megistospora (Physciaceae) in the Russian Far East

2018 ◽  
Vol 52 (1) ◽  
pp. 133-139
Author(s):  
I. A. Galanina ◽  
A. K. Ezhkin ◽  
L. S. Yakovchenko
Keyword(s):  
Russian Far East ◽  
Far East ◽  
Northeast Asia ◽  
Current Data ◽  
Oak Forests ◽  
Morphological Description ◽  
Quercus Crispula ◽  
Kalopanax Septemlobus ◽  
First Time ◽  
The Russian Far East

The paper presents new data on distribution of the lichen Rinodina megistospora in the Russian Far East and its revealed range in eastern Asia. R. megistospora is recorded for the first time for the Sakhalin Region (Sakhalin and Iturup islands). It has been found on the territory of Russia in eight localities in the boreal and nemoral zones of Northeast Asia. The species grows in old-growth intact coniferous and oak forests on bark of Betula sp., Kalopanax septemlobus, Picea sp., Quercus crispula and Sorbus sp. Current data suggest that R. megistospora is one of the species belonging to the Eastern Asiatic — Western North American group of species, characterized by disjunctive range. The paper presents the anatomical and morphological description of Rinodina megistospora, based on the examined specimens.

scholarly journals Asymmetric Hybridization and Sex-Biased Gene Flow Between Eastern Spot-Billed Ducks (Anas Zonorhyncha) and Mallards (A. Platyrhynchos) in the Russian Far East

The Auk ◽  
2004 ◽  
Vol 121 (3) ◽  
pp. 930-949 ◽  
Author(s):  
Irina V. Kulikova ◽  
Yury N. Zhuravlev ◽  
Kevin G. McCracken
Keyword(s):  
East Asia ◽  
Control Region ◽  
Russian Far East ◽  
Far East ◽  
Mtdna Haplotypes ◽  
Group A ◽  
American Black ◽  
Group B ◽  
The Russian Far East

AbstractThe Eastern Spot-billed Duck (Anas zonorhyncha) historically was rare in the southern Russian Far East. However, during the last 60–70 years, its breeding range in East Asia has expanded northwest; Eastern Spot-billed Ducks are breeding increasingly within the range of Mallards (A. platyrhynchos). We collected 120 Eastern Spot-billed Ducks and Mallards from Primorye, Russia, and sequenced 666–667 base pairs (bp) of the maternally inherited mitochondrial DNA (mtDNA) control region and 255 bp of the ornithine decarboxylase intron six (ODC6). Control region and ODC-6 allele sequences revealed two divergent groups of haplotypes and alleles that differ by 1.5% and 2.0%, respectively, and correspond to Avise et al.'s (1990) group A and B mtDNA haplotypes. Group A mtDNA haplotypes occurred in 22 Eastern Spot-billed Ducks and 78 Asian Mallards, and group B haplotypes occurred in 14 Eastern Spot-billed Ducks and 4 Asian Mallards. Moreover, the group B haplotypes that we observed predominantly in Eastern Spot-billed Ducks (i.e. group SB) were monophyletic and diverged by 2–16 substitutions from group B haplotypes previously sequenced from 241 Mottled (A. fulvigula), American Black (A. rubripes), and Mexican ducks (A. diazi), and from North American Mallards. In contrast, type 1 and 2 ODC-6 allele frequencies for Eastern Spot-billed Ducks and Mallards did not differ, but heterozygosity for the former was greater than expected under Hardy-Weinberg equilibrium. Our analysis is the first to document the existence of two divergent haplotype and allele lineages (group A and B, type 1 and 2) in Asian mallard species and suggests that Eastern Spot-billed Ducks are more closely related to North America's Mottled, American Black, and Mexican ducks than they are to Mallards, which occur sympatrically in East Asia. Our data are consistent with the hypothesis that Eastern Spot-billed Ducks and Mallards have hybridized extensively in the Russian Far East. If so, apparent differences in group A and B mtDNA haplotype ratios, effective populations sizes, and migration rates indicate that many more male Eastern Spot-billed Ducks mated with female Mallards and more Eastern Spot-billed Ducks received ODC-6 alleles from Mallards than vice versa. We hypothesize that those differences reflect strong female natal-site fidelity and high levels of male dispersal, and that Mallards significantly outnumber Eastern Spotbilled Ducks in Primorye. Excess heterozygosity in Eastern Spot-billed Ducks (and in Mallards to a lesser extent) is probably maintained by ongoing emigration of Eastern Spot-billed Ducks and Mallards from areas of allopatry outside the Primorye region, where Eastern Spot-billed Ducks and Mallards are predicted to possesses genotypic frequencies historically diagnostic of each species.

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