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Results 951 to 975 of 1020
We demonstrate the use of molecular techniques to detect specific prey … consumed by the southern rock lobster ( Jasus edwardsii). A quick and non-lethal … method was used to collect rock lobster faecal material and a molecular protocol … was employed to isolate prey DNA from faecal samples.
The Agreement on the Conservation of Albatrosses and Petrels (ACAP) is a newly-constituted international treaty that as yet may be little … known to marine ornithologists around the world. We outline the rationale for the existence of the Agreement, the history of its development…
1. Correlational studies of reproductive success are plagued by difficulty over the direction of … causation. For example, improved reproductive success with age can result from increased … experience or reproductive effort, or selection against low-quality phenotypes that survive poorly.
ABSTRACT: Collisions with vessels are a well-documented conservation problem for some populations of large whales (LW) in the Northern Hemisphere. Less attention has been given to incidents in the Southern Hemisphere or to small cetaceans … (SC) worldwide…
Factsheets outlining the physical and biological attributes of selected sectors of the CCAMLR … convention area are presented. An overview of CCAMLR Area 58 (Indian Ocean Sector) illustrates … bathymetry and major oceanographic features (fronts and sea ice extent)…
Length-at-age data for Patagonian toothfi sh (Dissostichus eleginoides) at Heard Island … (Division 58.5.2) were fi tted using a von Bertalanffy (VB) growth model taking into … account response-biased sampling of fi sh that were aged. Subsampling of random lengthfrequency … (LF)…
A breeding population of black-browed albatrosses … has been known to exist at the Ildefonso Archipelago, Chile, for >90 years but the population has never been … censused using scientiWcally defendable methods. To estimate … population size…
Two small-scale Antarctic marine ecosystem surveys were conducted offshore from the Mawson coast ð61266EÞ, in the austral … summers of January 2001 and 2003.
Signals used in mate attraction are predicted to be highly condition dependent, and thus should be … sensitive to environmental contributions to condition. However, the effects of temporal fluctuations in the … environment on sexual selection in long-lived animals have been largely ignored.
We report a long-term study of offspring sex … ratios in the cooperatively breeding superb fairy-wren … Malurus cyaneus. Detailed study of this species had … revealed a suite of potentially strong selection pressures … on the sex ratio. First…
1. Subordinate helpers in cooperative societies may gain both immediate and future benefits, including paternity and territorial inheritance. However, if such opportunities correlate with rank … in the queue, it is unclear why such queues should be stable. 2.
Abundance and grazing impacts of krill, salps and herbivorous copepods were investigated in … Antarctic waters along the 1408E meridian, south of Australia, during the summers of 2002 and 2003. North of the Southern Boundary of the Antarctic Circumpolar Current (SB-ACC)…