scholarly journals Dominating the Antarctic Environment: Bryophytes in a Time of Change

Author(s):  
Jessica Bramley-Alves ◽  
Diana H. King ◽  
Sharon A. Robinson ◽  
Rebecca E. Miller
2002 ◽  
Vol 14 (2) ◽  
pp. 113-113
Author(s):  
D.W.H. Walton

One might imagine that the only continent in the world devoted to peace and science would be certain to play a leadership role in global questions that needed a scientific answer. Indeed, to a dispassionate observer, the present situation with respect to reporting on the state of the Antarctic environment must seem bizarre. All the Antarctic Treaty Consultative Parties are members of the United Nations Environment Programme, and all are apparently committed to providing State of the Environment Reports for their respective regions. Why then have some of these very nations been so reluctant to accept that Antarctica is a key part of this world and, to provide the holistic view required, needs to be included in the reporting? The list of excuses for delay is lengthy: no money; no secretariat to organize through; likely to be too expensive; no clear reason to undertake it; not needed at present; who would be the audience; how would we maintain political oversight; etc. but none of them ever appeared insoluble. This has been clearly demonstrated by the recent publication by New Zealand of a State of the Environment Report for the Ross Sea Region.


1989 ◽  
Vol 1 (3) ◽  
pp. 191-191
Author(s):  
John C. Behrendt

The Convention on the Regulation of Antarctic Mineral Resource Activities (CRAMRA) was adopted in 1988. Of legitimate concern to all Antarctic scientists is CRAMRA's impact on the Antarctic environment and on the conduct of research; the treaty will have a positive effect on both.


1991 ◽  
Vol 3 (2) ◽  
pp. 123-123
Author(s):  
John A Heap

“Antarctica shall be used for peaceful purposes only …… Freedom of scientific investigation and co-operation toward that end …… shall continue, subject to the provisions of the present Treaty.”These are the fundamental objectives of the Antarctic Treaty as expressed in Articles I and II. What follows in the Treaty, and in most of the many “Recommendations” to the Governments of Antarctic Treaty Consultative Parties (ATCPs), is aimed at securing these objectives by the creation of a framework of law. Unusually for a system of laws, most of this legal framework is hortatory rather than mandatory in character - it cajoles rather than orders. Perhaps not surprisingly this has given rise to damaging suggestions about its ability to provide adequate protection for the Antarctic environment. The response of the ATCPs to this criticism has been to embark on a review of existing Antarctic law, to make it more consistent, reduce overlaps and more especially, make much of it mandatory. This process began at the XIth Special Antarctic Treaty Consultative Meeting in Chile last November. Since it aims to provide greater clarity, accessibility and certainty in the law, it must be welcomed. But within these admirable objectives a prospect of loggerheads begins to loom.


Polar Record ◽  
1999 ◽  
Vol 35 (195) ◽  
pp. 299-316 ◽  
Author(s):  
Patrick P. Deprez ◽  
Michael Arens ◽  
Helen Locher

AbstractIn December 1993 a study of contaminated sites at Casey Station, Wilkes Land, Antarctica, was undertaken. The preliminary assessment of these contaminated sites is presented here. A register of contaminated sites for Casey Station was developed, based on a survey of past Antarctic expeditioners, relevant literature, and in-house reports relating to site usage and history. On this basis a sampling strategy was devised for the highest priority, potentially contaminated sites at Casey Station. Samples were collected from the refuse disposal site (tip site) at Thala Valley and the mechanical workshop/powerhouse areas of ‘Old’ Casey. The results indicated that copper, lead, and zinc were leaching from the tip site into adjacent Brown Bay, with ‘hot spots’ of high petroleum hydrocarbon levels. The mechanical workshop/powerhouse area was also shown to be contaminated with petroleum hydrocarbons, polycyclic aromatic hydrocarbons, and metals such as copper, lead, and zinc. Several recommendations were made, including the removal of rubbish mixed with soil at the bottom end of Thala Valley in such a manner as to prevent any further release of contaminants, with subsequent site monitoring to verify effective removal of contaminants to acceptable environmental levels. It was also recommended that further investigations be carried out on the ecosystem of Brown Bay, the large fuel spill site, the upper and lower fuel-storage areas, and the area around the incinerator. There is scope for monitoring the natural breakdown and migration of contaminants at the mechanical workshop/powerhouse site. This should include studies on bioremediation of hydrocarbon-contaminated soils. Mechanisms for arresting surface migration should be investigated in those sites identified. In addition to meeting some of the international obligations of the Protocol on Environmental Protection to the Antarctic Treaty, this work also contributes towards the development of an approach to assessment and management of contaminated sites that is uniquely adapted to the Antarctic environment and could be applied at other Antarctic stations. to the assessment and management of contaminated sites that is uniquely adapted to the Antarctic environment. This approach could be utilised for site assessments at other Antarctic stations.


2011 ◽  
Vol 8 (3) ◽  
pp. 263 ◽  
Author(s):  
Roger Cropp ◽  
Georgina Kerr ◽  
Susan Bengtson-Nash ◽  
Darryl Hawker

Environmental contextPersistent organic pollutants (POPs) are potentially toxic chemicals capable of long distance transport and are often found far from their source. Little is known of their behaviour in Antarctica, where the marine plankton food web is driven by strong seasonal variations in solar radiation. Here the first dynamic coupled ecosystem–fugacity model to describe how POPs distribute through the Antarctic environment is presented. The model is used to identify the important processes that govern the presence of hexachlorobenzene in Antarctic plankton. AbstractPolar regions can be repositories for many persistent organic pollutants (POPs). However, comparatively little is known of the movement and behaviour of POPs in Antarctic ecosystems. These systems are characterised by strong seasonal effects of light on plankton dynamics. This work describes a mass-conserving, fugacity-based dynamic model to describe the movement of POPs in the Antarctic physical and plankton systems. The model includes dynamic corrections for changes in the population volumes and the temperature dependence of the fugacity capacities, and was developed by coupling a dynamic Nutrient–Phytoplankton–Zooplankton–Detritus (NPZD) ecosystem model to fugacity models of the chemistry and biology of the Southern Ocean. The model is applied to the movement of hexachlorobenzene, a POP found in the Antarctic environment. The model predicts that the burden of HCB in the plankton varies with the seasonal cycle in Antarctic waters, and induces a seasonal variation in the biomagnification factor of zooplankton. This suggests that time series of POP concentrations in Antarctic biotic and abiotic systems should be measured over complete seasonal cycles. Furthermore, detritus is shown to be a key contributor to the movement of POPs in polar environments, linking physical and biological components of the model.


Polar Record ◽  
1989 ◽  
Vol 25 (152) ◽  
pp. 19-32 ◽  
Author(s):  
Peter J. Beck

AbstractIn June 1988, at the final session of the Fourth Special Antarctic Treaty Consultative Meeting in Wellington, New Zealand, the Convention on the Regulation of Antarctic Mineral Resource Activities (CRAMRA) was adopted, bringing to a successful conclusion six years of negotiations. Christopher Beeby, chairman of the discussions, presented the convention as the most important political development affecting Antarctica since the 1959 treaty, especially as it established the ability of the Antarctic Treaty System to reach an internal accommodation even upon matters raising serious political, legal, environmental and other issues. There remain uncertainties regarding the future development of the Antarctic minerals question; for example, when will the minerals convention and the proposed institutional framework come into effect, will its ratification encourage mining, can the fragile Antarctic environment be adequately protected against mining, how will certain key terms and concepts be defined, and will the regime's operation bring latent tensions to the surface? It is also difficult to predict how other governments will react to the convention, in the light of recent UN resolutions on Antarctica. The convention is perceived within the Antarctic Treaty system as a significant development, but it will be some time before a considered evaluation of the Antarctic Minerals Regime can be conducted.


2014 ◽  
Vol 15 (3) ◽  
pp. 341-348 ◽  
Author(s):  
Matthias Feuerecker ◽  
Brian Crucian ◽  
Alex P. Salam ◽  
Ales Rybka ◽  
Ines Kaufmann ◽  
...  

1997 ◽  
Vol 102 (B7) ◽  
pp. 15039-15055 ◽  
Author(s):  
Grazyna Zreda-Gostynska ◽  
Philip R. Kyle ◽  
D. Finnegan ◽  
Kimberly Meeker Prestbo

Polar Record ◽  
1991 ◽  
Vol 27 (160) ◽  
pp. 1-8 ◽  
Author(s):  
Lorne K. Kriwoken

AbstractThe Antarctic environment has undergone significant local environmental damage and degradation, with nations rebuilding, expanding, or developing stations and bases. The Australian Antarctic Division's ten-year (1985–95) A$76.704 million programme of rebuilding and expanding stations in Australian Antarctic Territory is representative of a continent-wide increase in station numbers and impact, increasing station size, human numbers, lengths of roads, buildings, waste material production, and energy requirements. Environmental planning and impact assessment have not been incorporated in official decision-making; human activities at Australian Antarctic Territory stations had serious impacts on the limited ice-free land and local flora and fauna. Casey, are-developed station, is examined with reference to environmental planning and management under Antarctic Treaty obligations and recent Australian environmental legislation. Recommendations include the setting up of an Australian Antarctic Resources Committee responsible inter alia for environmental planning and management, including regional and station management plans and cumulative and environmental impact assessment for all Antarctic operations.


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