Latest publications
Results 4451 to 4475 of 13317
Many studies have shown that for plants growing in alpine and high latitude environments … sexual reproduction is not an important life history trait. This study investigated reproductive … ecology of the vascular flora of Macquarie Island…
Researchers in the SCAR- RiSCC program have been examining the interactions among … climate change, indigenous and alien species, and species and ecosystems function in … terrestrial and limnetic environments spanning an Antarctic environmental gradient of 30° … latitude. This international…
Reduced reproductive success in flipper-banded King Penguins compared to unbanded … penguins has been reported but differences in survival were not found. The “worst-case” survival analysis done by previous researchers assumed that death occurred at the beginning … of the tail chain of absences.
Palaeolimnological studies of environmental change focusing on select species are useful, yet … cannot give information on changes in whole lake community structure and dynamics. Analysis of entire fossil zooplankton communities, in addition to interpretation of diatom…
A diverse fouling community discovered encrusting a barge intended for deployment at subantarctic … Macquarie Island is described and its role as a transport vector for non-indigenous marine organisms is … discussed.
Procellariiform seabirds (petrels, albatrosses and shearwaters) navigate vast distances … over seemingly featureless ocean habitat by mechanisms that are not well understood. These birds … have large olfactory bulbs, and the use of smell has been implicated in both foraging and homing … behavior.
For the first time, the cyanobacterial diversity from microbial mats in lakes of … Eastern Antarctica was investigated using microscopic and molecular approaches. The present study assessed the biogeographical distribution of cyanobacteria in … Antarctica.
1. Microbial plankton dynamics in an ultra-oligotrophic epishelf lake (Beaver Lake, Antarctica) were investigated over an austral summer (December 2002 to January 2003). The aim was to characterise carbon cycling in an environmentally extreme lake. 2.
Between October 2001 and March 2002 six transects were completed at monthly intervals in the Sub-Antarctic Zone … (SAZ) and Inter-Sub-Antarctic Front Zone (ISAFZ)/Polar Frontal Zone (PFZ) in the Southern Ocean south of Australia.
Between November 2001 and March 2002 an Australian/Japanese collaborative study completed six passes of a transect … line in the Seasonal-Ice Zone (south of 621S) along 1401E. Zooplankton samples were collected with a NORPAC net on … 22–28 November, and a Continuous Plankton Recorder on 10…
The origins of the freshwater fauna that inhabits Antarctic lakes are poorly known. The species … present today could be relict species that have survived Quaternary glaciations on the continent, or … Holocene migrants from more temperate regions.
Accurate assessments of the past and future mass budgets of polar ice sheets are essential to resolving contributions to past sea-level rise and projecting responses to climate change respectively. Both tasks require that ice accumulation and ice flow are each accurately described…
The long-term variation of the solar diurnal anisotropy of the galactic cosmic … ray intensity in the sub-TeV region is studied by using data recorded over … 20 years with the deep underground muon detector at Matsushiro in Japan … since 1984.
We develop a numerical model of the cross-field diffusion of galactic cosmic rays … into an interplanetary coronal mass ejection (ICME), on the assumption that … the local part of the ICME is an expanding straight cylinder.
Creative remediation schemes have been implemented with success at petroleum-contaminated sites … in Alaska and Canada during the past decade. Contaminated media have been landfarmed, amended with fertilizers, augmented with microbial products, and manipulated with engineered systems.