Results 61 to 70 of about 2,475,812 (303)
Environmental Research LettersAnthropogenic climate warming is degrading permafrost across interior Alaska. Information from past warming events provides long-term perspectives for future trajectories; however, late Quaternary seasonal temperatures are poorly constrained.
Thomas A Douglas +3 more
doaj +1 more source
Revision of the genus Halamphora (Bacillariophyta) in the Antarctic Region [PDF]
Plant Ecology and Evolution, 2014 Abstract: Background and aims The limnoterrestrial and aquatic diatom flora of the entire Antarctic Region (sub-Antarctic islands, Maritime Antarctic Region, Antarctic Continent) is currently under revision. One of the genera that still needed a thorough analysis is the genus Halamphora, recently split off from Amphora. Halamphora species are a typical
Van de Vijver, Bart +3 more
openaire +2 more sources
The projected risk of plant invasions on the peri‐Antarctic islands under climate change
Ecography, EarlyView.The peri‐Antarctic islands have largely been shielded from alien plant species due to low human pressure, limited introduction pathways, and local harsh climates. However, climate change is expected to lower these barriers. We assess the vulnerability of 12 peri‐Antarctic islands to invasion by 2220 plant species invasive in at least one region of the ...
Tom Vorstenbosch +8 more
wiley +1 more source
Eastern Antarctic Peninsula precipitation delivery mechanisms: Process studies and back trajectory evaluation [PDF]
, 2008 Copyright @ 2008 Royal Meteorological SocietyThe atmospheric circulation patterns that result in precipitation events at a site on the eastern Antarctic Peninsula (AP) are investigated using back trajectories (BTs) driven by ERA-40 data.
McGregor, GR +8 more
core +1 more source
Responses of Antarctic seabird populations to past climate change
Ecography, EarlyView.Higher‐order predators such as Antarctic seabirds serve as ecological indicators of environmental change and provide a crucial trophic link between marine and terrestrial ecosystems. Despite their prevalence and significance in the Antarctic ecosystem, there is a lack of understanding of the impacts of major regime shifts in paleoclimate on flighted ...
Elize Y. X. Ng +6 more
wiley +1 more source
A climate model intercomparison for the Antarctic region: present and past [PDF]
Climate of the Past, 2012 Abstract. Eighteen General Circulation Models (GCMs) are compared to reference data for the present, the Mid-Holocene (MH) and the Last Glacial Maximum (LGM) for the Antarctic region. The climatology produced by a regional climate model is taken as a reference climate for the present. GCM results for the past are compared to ice-core data.
M. N. A. Maris, B. de Boer, J. Oerlemans
openaire +6 more sources
Food Safety and Health, EarlyView.Planned harvesting and processing of marine macroalgae could meet future global food needs and mitigate fuel‐originated carbon dioxide responsible for climate change. Microalgal foods are nutritious and safe. The utilization of macroalgae would avoid environmental problems arising from the release of overgrowing macroalgae caused by heatwaves, which ...
Upali Samarajeewa
wiley +1 more source
Diaspores and phyto-remains accidentally transported to the Antarctic Station during three expeditions [PDF]
, 2012 The aim of the project was to assess the size and species range of alien plant diaspores and phyto-remains transported into the Polish Antarctic Station during three Antarctic expeditions.
Chwedorzewska, Katarzyna J. +4 more
core +2 more sources
Geological Journal, EarlyView.In this study, we re‐examine the depositional architecture of the Erfoud limestone in Morocco. Introducing new biostratigraphic constraints from chitinozoan assemblages, we show that Katian to Hirnantian bryozoan‐pelmatozoan meadows reflect flooding events linked to a series of interglacial transgressions known to have occurred immediately prior to the
Philippe Razin +4 more
wiley +1 more source