scholarly journals Holocene climate and environmental change in north-eastern Kamchatka (Russian Far East), inferred from a multi-proxy study of lake sediments

2015 ◽  
Vol 134 ◽  
pp. 41-54 ◽  
Author(s):  
Elinor Andrén ◽  
Andrea Klimaschewski ◽  
Angela E. Self ◽  
Natalie St. Amour ◽  
Andrei A. Andreev ◽  
...  
Keyword(s):  
Environmental Change ◽  
Lake Sediments ◽  
Russian Far East ◽  
Far East ◽  
Holocene Climate ◽  
Eastern Kamchatka ◽  
Climate And Environmental Change ◽  
North Eastern

scholarly journals Lake development and vegetation history in coastal Primor'ye: implications for Holocene climate of the southeastern Russian Far East

Boreas ◽  
2020 ◽  
Author(s):  
Anatoly V. Lozhkin ◽  
Patricia M. Anderson ◽  
Thomas A. Brown ◽  
Tatiana A. Grebennikova ◽  
Julia A. Korzun ◽  
...  
Keyword(s):  
Vegetation History ◽  
Russian Far East ◽  
Far East ◽  
Holocene Climate ◽  
Lake Development

scholarly journals Complexity of diatom response to Lateglacial and Holocene climate and environmental change in ancient, deep and oligotrophic Lake Ohrid (Macedonia and Albania)

2016 ◽  
Vol 13 (4) ◽  
pp. 1351-1365 ◽  
Author(s):  
X. S. Zhang ◽  
J. M. Reed ◽  
J. H. Lacey ◽  
A. Francke ◽  
M. J. Leng ◽  
...  
Keyword(s):  
Environmental Change ◽  
Water Temperature ◽  
Nutrient Availability ◽  
Future Research ◽  
Lake Ohrid ◽  
Nutrient Input ◽  
Holocene Climate ◽  
Lake Productivity ◽  
Climate And Environmental Change ◽  
Response To Temperature

Abstract. Lake Ohrid (Macedonia and Albania) is a rare example of a deep, ancient Mediterranean lake and is a key site for palaeoclimate research in the northeastern Mediterranean region. This study conducts the analysis of diatoms as a proxy for Lateglacial and Holocene climate and environmental change in Lake Ohrid at a higher resolution than in previous studies. While Lake Ohrid has the potential to be sensitive to water temperature change, the data demonstrate a highly complex diatom response, probably comprising a direct response to temperature-induced lake productivity in some phases and an indirect response to temperature-related lake stratification or mixing and epilimnetic nutrient availability in others. The data also demonstrate the possible influence of physical limnological (e.g. the influence of wind stress on stratification or mixing) and chemical processes (e.g. the influence of catchment dynamics on nutrient input) in mediating the complex response of diatoms. During the Lateglacial (ca. 12 300–11 800 cal yr BP), the low-diversity dominance of hypolimnetic Cyclotella fottii indicates low lake productivity, linked to low water temperature. Although the subsequent slight increase in small, epilimnetic C. minuscula during the earliest Holocene (ca. 11 800–10 600 cal yr BP) suggests climate warming and enhanced stratification, diatom concentration remains as low as during the Lateglacial, suggesting that water temperature increase was muted across this major transition. The early Holocene (ca. 10 600–8200 cal yr BP) is characterised by a sustained increase in epilimnetic taxa, with mesotrophic C. ocellata indicating high water-temperature-induced productivity between ca. 10 600–10 200 cal yr BP and between ca. 9500–8200 cal yr BP and with C. minuscula in response to low nutrient availability in the epilimnion between ca. 10 200–9500 cal yr BP. During the middle Holocene (ca. 8200–2600 cal yr BP), when sedimentological and geochemical proxies provide evidence for maximum Holocene water temperature, anomalously low C. ocellata abundance is probably a response to epilimnetic nutrient limitation, almost mimicking the Lateglacial flora apart from the occurrence of mesotrophic Stephanodiscus transylvanicus in the hypolimnion. During the late Holocene (ca. 2600 cal yr BP–present), high abundance and fluctuating composition of epilimnetic taxa are probably a response more to enhanced anthropogenic nutrient input, particularly nitrogen enrichment, than to climate. Overall, the data indicate that previous assumptions concerning the linearity of diatom response in this deep, ancient lake are invalid, and multi-proxy analysis is essential to improve understanding of palaeolimnological dynamics in future research on the long, Quaternary sequence.

The lichen genusRinodina(Physciaceae,Caliciales) in north-eastern Asia

2017 ◽  
Vol 49 (6) ◽  
pp. 617-672 ◽  
Author(s):  
John W. SHEARD ◽  
Alexander K. EZHKIN ◽  
Irina A. GALANINA ◽  
Dmitry HIMELBRANT ◽  
Ekaterina KUZNETSOVA ◽  
...  
Keyword(s):  
North America ◽  
Secondary Metabolites ◽  
North American ◽  
New Records ◽  
Russian Far East ◽  
Far East ◽  
Species Distributions ◽  
Eastern Asia ◽  
North Eastern ◽  
First Time

AbstractRinodinais a widespread, polyphyletic genus of crustosePhysciaceaewithc. 300 species worldwide. A major missing link in understanding its global biogeography has been eastern Asia where the genus has never been systematically revised. Here we review specimen and literature records forRinodinafor north-eastern Asia (Russian Far East, Japan and the Korean Peninsula) and recognize 43 species. We describe two species,R. hypobadiaandR. orientalis, as new to science.Rinodina hypobadiais distinguished by its pigmented hypothecium,Dirinaria-type ascospores and pannarin in both thallus and epihymenium.Rinodina orientalisis characterized by its erumpent apothecia that remain broadly attached, with discs sometimes becoming convex and excluding the thalline margins, ascospores belonging to thePhyscia-type and secondary metabolites absent. Nine other species are reported from the region for the first time. These includeR. dolichospora,R. freyi,R. metaboliza,R. sicula,R. subminutaandR. willeyi. Of particular biogeographical interest are three additional new records that have western North American–eastern Asian distributions: the corticolous speciesR. endospora,R. macrosporaandR. megistospora. Six species have the better known eastern North American–eastern Asian distributions:R. ascociscana(syn.R. akagiensis,R. melancholica),R. buckii,R. chrysidiata,R. subminuta,R. tenuis(syn.R. adirondackii) andR. willeyi, and two have eastern North American–eastern Asian–European distributions:R. excrescensandR. moziana(syn.R. destituta,R. vezdae). Our study begins to close one of the largest gaps in our knowledge of circumboreal species distributions inRinodinaand, together with previous studies in North America and Europe, provides new insights into circumboreal crustose lichen biogeography.Rinodina cinereovirens(syn.R. turfaceavar. cinereovirens) is also reported as new to North America.

Holocene climate and environmental change in central New York (USA)

2011 ◽  
Vol 45 (2) ◽  
pp. 243-256 ◽  
Author(s):  
Henry T. Mullins ◽  
William P. Patterson ◽  
Mark A. Teece ◽  
Adam W. Burnett
Keyword(s):  
New York ◽  
Environmental Change ◽  
Holocene Climate ◽  
Climate And Environmental Change ◽  
Central New York

A paleolimnological record of Holocene climate and environmental change in the Temagami region, northeastern Ontario

2005 ◽  
Vol 33 (4) ◽  
pp. 445-461 ◽  
Author(s):  
Robert E. A. Boudreau ◽  
Jennifer M. Galloway ◽  
R. Timothy Patterson ◽  
Arun Kumar ◽  
Frederick A. Michel
Keyword(s):  
Environmental Change ◽  
Holocene Climate ◽  
Climate And Environmental Change

scholarly journals The South of the Russian Far East as a Unique Ethnic Region: Concerning the Issue of Interaction of Musical Cultures

ICONI ◽  
2021 ◽  
pp. 94-101
Author(s):  
Svetlana V. Mezentseva ◽  
Keyword(s):  
Computer Music ◽  
Foreign Students ◽  
Eastern China ◽  
Russian Far East ◽  
Far East ◽  
Mutual Cooperation ◽  
The North ◽  
Musical Cultures ◽  
North Eastern ◽  
The Russian Far East

The article examines the southern part of the Russian Far East, which has a great potential from the perspective of the interaction of musical cultures and the formation of a unique ethno-cultural zone. On the basis of contemporary research works the circle of possible ethnic contacts in the region on the contemporary stage is delineated. In the ethnic characterization of the Russian Far East certain modifi cations towards the direction of expansion of the ethnic makeup and change of the region’s social characterization. The adjacency with the two provinces of North-Eastern China — Heilongjiang and Jilin bordering Russia on the north and east — are noted as a territorial premise for close mutual cooperation. The persistent interest in having foreign students receive an academic musical education of a Western European type in the region’s artistic educational institutions. Accentuation is made of the great potential for the interaction between musical cultures connected with the use of contemporary computer music technologies. The author of the article highlights the fastest developing trends in the interaction between the musical cultures of the peoples of the Far East of Russia and China on the basis of the use of computer music technologies: compositional activities, performance and education. Observation is made of the decline of the population of the indigenous peoples of the Russian Far East and the change of the region’s ethnic make-up as the result of the processes of migration, as well as the increase in the number of foreign students from China in the educational space and the concert and competition venues of the region.

scholarly journals First insights into the molecular population structure and origins of the invasive Chinese sleeper, Perccottus glenii, in Europe

NeoBiota ◽  
2020 ◽  
Vol 57 ◽  
pp. 87-107
Author(s):  
Joanna Grabowska ◽  
Yuriy Kvach ◽  
Tomasz Rewicz ◽  
Mihails Pupins ◽  
Iuliia Kutsokon ◽  
...  
Keyword(s):  
Eastern China ◽  
Russian Far East ◽  
Far East ◽  
Water Bodies ◽  
Perccottus Glenii ◽  
East European ◽  
North Eastern ◽  
Unidentified Source ◽  
Cyprinid Fishes ◽  
Unintentional Introduction

The aim of our study was to provide a first overview of the population genetic structure of the invasive Chinese sleeper, Perccottus glenii, (Actinopterygii: Odontobutidae) in European water bodies. This species originates from inland waters of north-eastern China, northern North Korea and the Russian Far East. The 1172 bp long portion of the cytochrome b gene was sequenced from Chinese sleeper specimens collected from a variety of water bodies in Belarus, Bulgaria, Hungary, Germany, Latvia, Lithuania, Poland, Russia (European part) and Ukraine. Our study revealed that the invasive Chinese sleeper in Europe consists of at least three distinct haplogroups that may represent independent introduction events from different parts of its native area; i.e. three founding populations: (1) Baltic haplogroup that may originate either from fish introduced inadvertent from Russia or from some unidentified source (release by aquarists). So far, this haplogroup has been found only in the Daugava basin in Latvia. (2) East-European haplogroup that may originate from an unintentional introduction to the Volga basin in Russia and has expanded westward. So far, this group was recorded in the Volga, Upper Dnieper and Neman drainages in Belarus, Lithuania, and Russia. (3) Carpathian haplogroup, that originated from individuals unintentionally introduced with Asian cyprinid fishes to Lviv region in Ukraine and are now widely distributed in Central Europe.

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