Polish Polar Research最新文献_第10页

Evaluation of 20CR reanalysis data and model results based on historical (1930–1940) observations from Franz Josef Land 基于Franz Josef Land历史(1930-1940)观测的20CR再分析数据和模式结果的评价

IF 1.3 4区地球科学

Polish Polar Research Pub Date : 2018-01-01 DOI: 10.24425/118747

Daniel Klaus, P. Wyszyński, K. Dethloff, R. Przybylak, A. Rinke

引用次数: 7

Tardigrades and oribatid mites in bryophytes from geothermally active lava fields (Krafla, Iceland) and the description of Pilatobius islandicus sp. nov. (Eutardigrada) 冰岛Krafla地热活动熔岩区苔藓植物中的缓步虫和甲虫螨及真缓步虫目Pilatobius islandicus sp. 11 . (Eutardigrada)的描述

IF 1.3 4区地球科学

Polish Polar Research Pub Date : 2018-01-01 DOI: 10.24425/118755

Jakub Buda, Z. Olszanowski, M. Wierzgoń, K. Zawierucha

{"title":"Tardigrades and oribatid mites in bryophytes from geothermally active lava fields (Krafla, Iceland) and the description of Pilatobius islandicus sp. nov. (Eutardigrada)","authors":"Jakub Buda, Z. Olszanowski, M. Wierzgoń, K. Zawierucha","doi":"10.24425/118755","DOIUrl":"https://doi.org/10.24425/118755","url":null,"abstract":"In polar regions, apart from tundra and glaciers, geothermally active areas with elevated temperatures are important elements of ecosystems. One such geothermally active region characterized by mosaic ecosystems and vast areas covered by recent lava fields is Iceland. The aim of our study was to explore the diversity of invertebrates inhabiting geothermally active lava fields in the Krafla area (Iceland). Eight bryophyte samples were collected from a warm surface, mainly from the steaming areas. We have found Nematoda, Rotifera, Tardigrada and Oribatida in the samples. Habitat analysis demonstrated there to be 12 bryophyte species (five liverworts and seven mosses). The diversity of bryophytes in a single sample ranged from one to six species. The most common bryophyte was Racomitrium lanuginosum (Hedw.) Brid. Four species of tardigrades were found, including one that was new. Pilatobius islandicus sp. nov. is described herein by morphological, morphometric and molecular approaches (COI, 28S rRNA, 18S rRNA). Oribatida mites were identified as two species (Malaconothrus monodactylus (Michael, 1888) and Camisia foveolata Hammer, 1955). The average density of invertebrates was 13.1 ind./g with a maximum of 40.8 ind./g calculated per dry material. The tardigrades found in our study belonged to herbivores, microbivores and omnivores, whereas the mites belonged to saprophages, which indicates complex trophic networks in geothermally active lava fields.","PeriodicalId":49682,"journal":{"name":"Polish Polar Research","volume":"39 1","pages":"425-453"},"PeriodicalIF":1.3,"publicationDate":"2018-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"68940925","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 11

Deglaciation rate on southern and western Spitsbergen in the conditions of Arctic amplification 北极放大条件下斯匹次卑尔根岛南部和西部的消冰速率

IF 1.3 4区地球科学

Polish Polar Research Pub Date : 2018-01-01 DOI: 10.24425/118739

Joanna Szafraniec

{"title":"Deglaciation rate on southern and western Spitsbergen in the conditions of Arctic amplification","authors":"Joanna Szafraniec","doi":"10.24425/118739","DOIUrl":"https://doi.org/10.24425/118739","url":null,"abstract":"This paper reports on a morphometric analysis of land-terminating glaciers on southern and western Spitsbergen in the years 1936–2014. An attempt was made to estimate the deglaciation rate and the scale of its acceleration in the 21st century in the conditions of Arctic amplification. Satellite scenes and topographic map sheets were used for the study and were analyzed by means of remote sensing and GIS methods. The study covered 2000–2014 years and concluded that surface recession accelerated on average by a factor of 2.75 compared to the 1936–2000 period, while linear recession was 2.2 times faster. The greatest increase in the deglaciation rate can be observed in the case of glaciers faced to N and W sectors. The deglaciation process is the most advanced in the central part of the island, where small, compact mountain glaciers predominate. In recent years, a slowdown in the deglaciation processes in these glaciers was observed. The studies demonstrate that the deglaciation rate was mainly influenced by the basin relief determining the glacier geometry. The resultant fractal nature of the ice cover makes it highly vulnerable to the disintegration of complex glacial systems into smaller ones due to glacier thinning and the separation of outlets. The acceleration of the deglaciation rate in turn is modified by the climate factor, especially the impact of warming air masses from the N and W sectors where seas are becoming increasingly ice-free and, consequently, have an increasing heat capacity.","PeriodicalId":49682,"journal":{"name":"Polish Polar Research","volume":"39 1","pages":""},"PeriodicalIF":1.3,"publicationDate":"2018-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"68941076","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 9

Morphological characterization of Recherchefjorden (Bellsund, Svalbard) using marine geomorphometry Recherchefjorden (Bellsund, Svalbard)的海洋地貌学特征

IF 1.3 4区地球科学

Polish Polar Research Pub Date : 2018-01-01 DOI: 10.24425/118740

M. Moskalik, P. Zagórski, Leszek Łęczyński, Joanna Ćwiąkała, P. Demczuk

{"title":"Morphological characterization of Recherchefjorden (Bellsund, Svalbard) using marine geomorphometry","authors":"M. Moskalik, P. Zagórski, Leszek Łęczyński, Joanna Ćwiąkała, P. Demczuk","doi":"10.24425/118740","DOIUrl":"https://doi.org/10.24425/118740","url":null,"abstract":"Geomorphological research based on geomorphological mapping seeks to identify the origins and age of forms as well as to describe the process that created or transformed a particular form. One of the most important aspects of this study is the morphometry and morphology of the landscape. This also applies to the submarine areas, and issues related to marine geomorphometry. Bathymetric data used in this study were obtained from the measurements of the Norwegian Hydrographic Service and measurements conducted by the authors. Its main goal was: to determine the bathymetry of the Recherchefjorden (Bellsund, Svalbard), establish morphometric parameters for the analysis of the morphology of the bottom. The boundaries of zones, related to the specific character of bottom geomorphology linked with geological structure, tectonics and, in particular, the impact of glacial system, was delineated. The sets of landforms (areas) were distinguished based on the morphometric analysis resulting from the determined parameters: slopes, its aspects, curvatures and Bathymetric Position Index. Basically, this areas are concentrated in two zones: the main Recherchefjorden and its surroundings. The delimitation also takes into account the origins and location of theme in relation to the glacial systems. On this basis, moraine areas were distinguished. They are linked with the Holocene advances of two glaciers, Renardbeen and Recherchebreen, mainly during the Little Ice Age. They constitute boundary zones between areas with different morphometric parameters: outer fjord and inner fjord. Moreover, taking into account geology and terrestrial geomorphology it was possible to describe paraglacial processes in this area.","PeriodicalId":49682,"journal":{"name":"Polish Polar Research","volume":"1 1","pages":"99-125"},"PeriodicalIF":1.3,"publicationDate":"2018-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"68941086","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 6

Macro-plastic litter, a new vector for boreal species dispersal on Svalbard 大塑性凋落物:北方物种在斯瓦尔巴群岛传播的新媒介

IF 1.3 4区地球科学

Polish Polar Research Pub Date : 2018-01-01 DOI: 10.24425/118743

J. Węsławski, L. Kotwicki

引用次数: 20

Molecular composition of humic substances isolated from permafrost peat soils of the eastern European Arctic 从东欧北极永久冻土区泥炭土中分离的腐殖质物质的分子组成

IF 1.3 4区地球科学

Polish Polar Research Pub Date : 2018-01-01 DOI: 10.24425/118757

R. Vasilevich, E. Lodygin, E. Abakumov

{"title":"Molecular composition of humic substances isolated from permafrost peat soils of the eastern European Arctic","authors":"R. Vasilevich, E. Lodygin, E. Abakumov","doi":"10.24425/118757","DOIUrl":"https://doi.org/10.24425/118757","url":null,"abstract":"Abstract: Humification plays an important role in stabilization of organic matter in soils of the cryolithic zone. In this context, the degree of organic matter stabilization has been assessed, using instrumental methods, for permafrost peat soils of the eastern European Arctic, based on selected plots from within the Komi Republic (Russian Federation). Humic substances (HSs) isolated from the mire permafrost peats of the forest-tundra subzone of the European Arctic have been characterized in terms of molecular composition. This was accomplished using elemental and amino acid fragments (AAFs) composition. Solid-state 13C nuclear magnetic resonance (13C NMR) spectroscopy was utilized to identify the structure of HSs. Changes in the molar x(H) : x(C) ratio, ratio of aromatic to paraffin fragments and ratio of hydroxy AAFs to heterocyclic AAFs along the peat profiles have been revealed. They are due to the activation of cryogenic processes in the upper part of the seasonally thawing layer, the natural selection of condensed humic molecules, the botanical composition and degree of degradation of peat, which reflect the climatic features of the area in the Holocene. Humic acids and fulvic acids of the peat soils showed the prevalence of compounds with a low degree of condensation and a low portion of aromatic fragments. The aromaticity degree showed the trend to increase within the depth. Changes of quantitative and qualitative parameters of specific organic compounds occur at the permafrost boundary of peatlands, which can serve as an indicator of recent climate changes in environments from the high latitudes. The presented data can be useful in the evaluation of soil organic matter stabilization degree in the active layer and below the permafrost table.","PeriodicalId":49682,"journal":{"name":"Polish Polar Research","volume":"1 1","pages":"481–503-481–503"},"PeriodicalIF":1.3,"publicationDate":"2018-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"68940977","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 7

Morphological differentiation and phylogenetic homogeneity in Usnea aurantiaco-atra reveal the complexity of lichen symbiosis 摘要aurantiaco-atra的形态分化和系统发育同质性揭示了地衣共生的复杂性

IF 1.3 4区地球科学

Polish Polar Research Pub Date : 2018-01-01 DOI: 10.24425/118749

Shunan Cao, Hongyuan Zheng, Y. Cao, Chuan-peng Liu, Lingxiang Zhu, Fang Peng, Qiming Zhou

{"title":"Morphological differentiation and phylogenetic homogeneity in Usnea aurantiaco-atra reveal the complexity of lichen symbiosis","authors":"Shunan Cao, Hongyuan Zheng, Y. Cao, Chuan-peng Liu, Lingxiang Zhu, Fang Peng, Qiming Zhou","doi":"10.24425/118749","DOIUrl":"https://doi.org/10.24425/118749","url":null,"abstract":"Usnea aurantiaco-atra is the dominant flora around King George Island, Antarctica, whose specimens exhibited various phenotypes, even for those with the same ITS sequences in both mycobiont and photobiont. A comprehensive analysis of morphological traits of U. aurantiaco-atra including the reproductive structures, growth forms and ornamentation, cross section of the branches, and the substratum was carried out. Four arbitrary groups were identified based on their reproductive characters, but these groups cannot be distinguished from molecular phylogenetic trees based on fungal or algal ITS sequences. Further, the complicated morphological diversity of the thalli with the same ITS haplotypes in both mycobiont and photobiont suggest that some other factors in addition to the symbionts could influence the morphology of lichens. This implies that lichen is indeed a complex-mini-ecosystem rather than a dual symbiotic association of fungus and alga. Also, a lichenous fungi Phacopsis sp. was identified based on its anatomical characters and ITS sequence, which was also responsible for the black burls-like structures on U. aurantiaco-atra.","PeriodicalId":49682,"journal":{"name":"Polish Polar Research","volume":"39 1","pages":"313-328"},"PeriodicalIF":1.3,"publicationDate":"2018-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"68941354","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Thermal and mineral springs of southern Spitsbergen 斯匹次卑尔根岛南部的温泉和矿泉

IF 1.3 4区地球科学

Polish Polar Research Pub Date : 2018-01-01 DOI: 10.24425/118750

Tomasz Olichwer, R. Tarka

引用次数: 3

Natural variability of major and trace elements in non-ornithogenic Gelisoils at Edmonson Point, northern Victoria Land, Antarctica 南极维多利亚地北部埃德蒙森角非鸟源性冰沙中主要和微量元素的自然变异

IF 1.3 4区地球科学

Polish Polar Research Pub Date : 2018-01-01 DOI: 10.24425/118737

S. Emslie, J. Smykla, E. Szarek-Gwiazda, Marek Drewnik, W. Knap

{"title":"Natural variability of major and trace elements in non-ornithogenic Gelisoils at Edmonson Point, northern Victoria Land, Antarctica","authors":"S. Emslie, J. Smykla, E. Szarek-Gwiazda, Marek Drewnik, W. Knap","doi":"10.24425/118737","DOIUrl":"https://doi.org/10.24425/118737","url":null,"abstract":"Antarctica is perceived as one of the most pristine environments on Earth, though increasing human activities and global climate change raise concerns about preserving the continent’s environmental quality. Limited in distribution, soils are particularly vulnerable to disturbances and pollution, yet lack of baseline studies limits our abilities to recognize and monitor adverse effects of environmental change. To improve the understanding of natural geochemical variability of soils, a survey was conducted in the fellfield environments of Edmonson Point (Victoria Land). Soil samples were analyzed for six major (Fe, Ca, Mg, Na, K and Ti) and 24 trace elements (As, Ba, Be, Bi, Cd, Co, Cr, Cs, Cu, Ga, Li, Mn, Mo, Ni, Pb, Rb, Sn, Sr, Tl, U, V, Y, Zn and Zr). Relationships among element concentrations in the samples and local bedrock were analyzed to identify their origin and similarities in geochemical cycles. Element concentrations in the soils were highly variable but generally within the lowest values reported elsewhere in Antarctica. Though values of Cd, Mn, Ni and Zn were relatively high, they are consistent with those in the local soil-forming rocks indicating an origin from natural sources rather than anthropogenic contamination. Chemical composition of soils vs. rocks pointed to alkali basalts as the lithogenic source of the soil matrix, but also indicated considerable alteration of elemental composition in the soil. Considering local environmental settings, the soil elemental content was likely affected by marinederived inputs and very active hydrological processes which enhanced leaching and removal of mobilized elements. Both of these processes may be of particular importance Jerzy Smykla et al. 20 within the context of global climate change as the predicted increases in temperature, water availability and length of the summer season would favor mineral weathering and increase geochemical mobility of elements.","PeriodicalId":49682,"journal":{"name":"Polish Polar Research","volume":"1 1","pages":"19-50"},"PeriodicalIF":1.3,"publicationDate":"2018-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"68941031","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 5

Diversity of cyanobacteria and microalgae in hydro-terrestrial habitats in Svalbard and its ecological evaluation 斯瓦尔巴群岛水陆生境蓝藻和微藻多样性及其生态评价

IF 1.3 4区地球科学

Polish Polar Research Pub Date : 2018-01-01 DOI: 10.24425/118748

D. Richter

{"title":"Diversity of cyanobacteria and microalgae in hydro-terrestrial habitats in Svalbard and its ecological evaluation","authors":"D. Richter","doi":"10.24425/118748","DOIUrl":"https://doi.org/10.24425/118748","url":null,"abstract":"Abstract: The aim of this research was to study the biodiversity of cyanobacteria and microalgae in hydro-terrestrial habitats from the area of Hornsund fjord (Svalbard archipelago). This research is particularly important, because hitherto no complex research (including all taxonomic groups) has previously been conducted on the cyanobacterial and microalgal flora in Arctic water ecosystems. The research was conducted during the summer seasons of 2011 and 2013. Shannon’s diversity index was used to describe species diversity and evenness. Data on cyanobacteria and microalgae were analyzed using the MVSP and PCA. Additionally, a basic analysis of the physicochemical properties of water in the studied ecosystems was performed. A total of 506 taxa were noted in the studied hydro-terrestrial habitats. The most numerous group was cyanobacteria, constituting 35% of all recorded taxa. Ochrophyta and Chlorphyta were almost equally numerous (percentage again as for cyanobacteria). Nineteen types of assemblages were noted in all studied hydro-terrestrial habitats. The diversity of cyanobacteria and microalgae and the assemblages formed by them were used to determine the characteristics of the studied ecosystems. Each type of water ecosystem was represented by specific phycoflora and assemblages. Ecological parameters along with biological data (the diversity of cyanobacteria and microalgae) allowed us to sort the studied hydro-terrestrial habitats by similarity. Our analyses clearly distinguished water ecosystem groups differing in species composition determining their trophic status. The research shows the usefulness of cyanobacteria and microalgae diversity defined by the Shannon-Weaver index for characterizing bodies of water and determining the trophic status of these habitats.","PeriodicalId":49682,"journal":{"name":"Polish Polar Research","volume":"39 1","pages":""},"PeriodicalIF":1.3,"publicationDate":"2018-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"68941311","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1