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The impact of ambient ultraviolet (UV)-B radiation on the endemic bryophyte, Grimmia … antarctici, was studied over 14 months in East Antarctica. Over recent decades, Antarctic … plants have been exposed to the largest relative increase in UV-B exposure as a result of … ozone depletion.
Invasive species are a serious threat to biodiversity … worldwide. The relatively simple ecological … systems of the subantarctic have the potential to be signiWcantly … damaged by predatory species that invade. Two species of exotic, predatory…
CCAMLR is developing a management procedure for the krill fi shery, including the … evaluation of candidate management procedures in a simulation framework, using … plausible models of the Antarctic marine ecosystem. This paper develops a framework … for erecting such models.
A new method for estimating illegal fi shing effort is put forward. The results from this … new method are similar to those of the Agnew and Kirkwood (2005) method…
We describe the use of structured graphs for the visual exploration of biodiversity data. A graph consists of a set of nodes, representing entities of interest, linked by edges showing relationships between those entities. For biodiversity data, the nodes are typically chosen to represent taxa…
There are continuing efforts to refine our understanding of the association … between Polar Mesospheric Clouds (PMCs) and Polar Mesosphere Summer Echoes … (PMSEs).
Mesosphere Summer Echoes (MSE) have been observed with 50-MHz VHF … radars at middle (MSE) and polar latitudes (PMSE) in the Northern Hemisphere for … more than 20 years. However measurements in the Southern Hemisphere were in the … past rare and limited to low southern latitudes.
Atrialwas undertaken of two techniques for assessing the physical condition ofwalking tracks (trails) over extended distances. A distance-based technique, in which categorical measurements were made at regular spatial intervals, proved to be sufficiently … reliable to warrant further development.
Long-term studies at Bird Island, South … Georgia, show that numbers of wandering, black-browed … and grey-headed albatrosses have been decreasing … since the late 1970s. To determine the status of the total … South Georgia population…
Longline fisheries have been responsible for the deaths of large numbers of seabirds worldwide. Two of the most difficult seabird species to deter from baited hooks are the whitechinned … petrel (Procellaria aequinoctialis) and sooty shearwater (Puffinus griseus).
Remediation of the Thala Valley waste disposal site near Casey Station, East Antarctica was conducted in the austral summer of … 2003/2004. Biomonitoring of the adjacent marine environment was undertaken using the gammaridean amphipod Paramoera walkeri … as a sentinel species [Stark, J.S.…
Statistical models of variation in Adélie penguin fledgling weight data were used to … examine the power to detect a change in fledgling weights after an impact.
The microscopic anatomy of the cardio-respiratory system, digestive system, kidney, lymphatic system and integument … was investigated in the leopard seal, Hydrurga leptonyx … , by examining histological sections of tissues … collected from leopard seals in Antarctica and New South Wales, Australia.
Little is known of the wider Antarctic distribution of the upper fast ice community now comprehensively described from McMurdo Sound. We determined the fast ice protist community at Davis Station, East Antarctica and compared it with that of McMurdo Sound. As at McMurdo Sound…
Abstract : Well sorted, fine lithic sandstone within the Drygalski Formation at Cape Lockyer on the … southern tip of Heard Island, preserves a diverse terrestrial palynoflora as well as marine diatoms and a few … foraminifera. A combination of these elements suggests a Late Miocene age (10–5 Ma).
Wandering Albatrosses (Diomedea exulans) are globally threatened owing to declines in populations, and the breeding population of Macquarie Island is particularly vulnerable as it comprises fewer than 20 breeding … pairs.
This review concerns crustaceans that associate with sea ice. Particular … emphasis is placed on comparing and contrasting the Arctic and Antarctic … sea ice habitats, and the subsequent influence of these environments on the … life history strategies of the crustacean fauna.