Results 121 to 130 of about 83,284 (295)

Assessing the Vulnerability of an Inuit Archaeological Site in a Changing Periglacial Environment: A Novel Multimethod Geophysical Approach in Arctic Geoarchaeology

Archaeometry, EarlyView.
ABSTRACT With northern regions warming at twice the global rate, assessing the state of archaeological sites in these areas is critically important. In this study, we used a multimethod geophysical approach (ERT, GPR, and EMI) to characterize the current geocryological conditions of an Inuit archaeological site on South Aulatsivik Island (Labrador ...
Rachel Labrie, Dominique Todisco, Najat Bhiry, Cécile Finco, Héloïg Barbel Le Page, Armelle Couillet   +5 more
wiley   +1 more source

Stratigraphic evidence for modern‐like glacier extents in south‐central Alaska within the last glacial period (MIS 3)

Boreas, EarlyView.
The last (Wisconsinan) glacial period was punctuated in North America by two glacial maxima, known as the Early and Late Wisconsinan glaciations. In Alaska, these maxima and their subsequent retreats have been the object of dating efforts to reconstruct local climatic events and compare them to global trends.
Bruno Belotti, Elizabeth J. Cassel, Timothy C. Bartholomaus, Michael G. Loso, Michael S. Christoffersen, John W. Holt   +5 more
wiley   +1 more source

Late Holocene moisture variability in Arctic Alaska from chitin δ18O

Boreas, EarlyView.
Amplified warming in the Arctic has resulted in reduced sea‐ice extent, which can impact regional climate dynamics. Elucidating past moisture variability in response to changing temperatures and sea‐ice conditions can offer insight into how anthropogenic climate change may impact Arctic areas such as the Alaskan North Slope in the future. We contribute
Briana A. Edgerton, Melissa L. Chipman
wiley   +1 more source

What controls forest litter decomposition? A coordinated distributed teabag experiment across ten mountains

Ecography, EarlyView.
Litter decomposition in mountainous forest ecosystems is an essential process that affects carbon and nutrient cycling. However, the contribution of litter decomposition to terrestrial ecosystems is difficult to estimate accurately because of the limited comparability of different studies and limited data on local microclimatic and non‐climatic factors.
Shiyu Ma, Shengbin Chen, Yi Ding, Zhongsheng He, Gang Hu, Jie Liu, Ya‐huang Luo, Kun Song, Yongchuan Yang, Xiaolei Huang, Meixiang Gao, Lan Liu, Bo Chen, Xianjin He, Xiaorong Lu, Bingwei Lv, Liang‐Liang Ma, Yani Meng, Zhongping Tian, Hong‐wei Zhang, Xijin Zhang, Yansong Zhang, Zhaochen Zhang, Shaopeng Li, Jian Zhang   +24 more
wiley   +1 more source

North Slope Borough water study: a background for planning [PDF]

, 1977
The Planning and Research Section of Alaska Dept. of Natural Resources initiated this pilot water study with the North Slope Borough and the University of Alaska's Arctic Environmental Information and Data Center and Institute of Water Resources ...
Dreyer, Linda Dwight, Johnson, Ronald A.
core  

Population and herbarium genomics provide a comprehensive framework for a revision of Microcoleus (Cyanobacteria)

Journal of Phycology, EarlyView.
Abstract Microcoleus is a cosmopolitan, filamentous cyanobacterium and a key component of biological soil crusts—complex microbial communities essential for primary production in diverse terrestrial environments. Here, we performed a taxonomic revision of several species of Microcoleus based on a large population genomic dataset.
Svatopluk Skoupý, Aleksandar Stanojković, Jeffrey R. Johansen, Dale A. Casamatta, Callahan McGovern, Anne D. Jungblut, Jutta Fastner, Petr Dvořák   +7 more
wiley   +1 more source

Historic disturbance events overruled climatic factors as drivers of ruderal species distributions in the Scandinavian mountains

Nordic Journal of Botany, EarlyView.
The contemporary interaction of climate and disturbance drives vegetation composition and species distribution shifts, making their respective roles difficult to disentangle. This study describes the long‐term ruderal plant species distributions along the ‘Rallarvägen' in Abisko, subarctic Sweden.
Dymphna Wiegmans, Keith Larson, Jan Clavel, Lore Hostens, Jasmine Spreeuwers, Amber Pirée, Ivan Nijs, Jonas J. Lembrechts   +7 more
wiley   +1 more source

The promise of digital herbarium specimens in large‐scale phenology research

New Phytologist, EarlyView.
Summary The online mobilization of herbaria has made tens of millions of specimens digitally available, revolutionizing investigations of phenology and plant responses to climate change. We identify two main themes associated with this growing body of research and highlight a selection of recent publications exemplifying: investigating phenology at ...
Natalie Iwanycki Ahlstrand, Richard B. Primack, Matthew W. Austin, Zoe A. Panchen, Christine Römermann, Abraham J. Miller‐Rushing   +5 more
wiley   +1 more source

Tundra Nenets: A Heritage Language in Its Own Land? Linguistic Identity and Language Loss

Languages
Through fieldwork conducted between 2014 and 2016 in Arkhangelsk, Naryan-Mar, Krasnoye, and Saint Petersburg, this paper investigates the endangered status of Tundra Nenets, an underrepresented and understudied Samoyedic minority language in northern ...
Polina Berezovskaya
doaj   +1 more source

Digitised herbarium specimen data reveal a climate change‐related trend to an earlier, shorter Canadian Arctic flowering season, and phylogenetic signal in Arctic flowering times

New Phytologist, EarlyView.
Summary The Arctic is experiencing some of the world's most rapid changes in climate. Arctic plant flowering time responses to climate change are understudied. Globally, conflicting evidence exists on whether flowering time responses to temperature are evolutionarily conserved.
Zoe A. Panchen, Jennifer Doubt, Jeffery M. Saarela, Heather M. Kharouba   +3 more
wiley   +1 more source