Thumbnail Icon [Parameters: Topic='BIOSPHERE', Term='ECOLOGICAL DYNAMICS', Variable_Level_1='ECOSYSTEM FUNCTIONS']


Refine by Category
 
Refine by Full text

 

1047 Titles Match Your Query
Showing 1 through 50 of 1047 Next
1. A Study of the Nitrogen-fixing Microbiota of Macquarie Island Plant Communities [ASAC_194]
The nitrogen fixing biota of Macquarie Island are dominated by cyanobacteria growing epiphytically or symbiotically with plants or lichens. Highest rates of acetylene reduction (N-fixation) were found ...


2. Comparative Study of the Composition and Transport of Particulate Biogenic Matter in the Shelf, Slope and Pelagic Watercolumn of Prydz Bay [ASAC_288]
Metadata record for data from ASAC Project 288 See the link below for public details on this project. From the abstract of the referenced paper: In January-February 1991, ...


3. Contribution of dinoflagellates to Antarctic coastal zone carbon flux [ASAC_988]
Some scanning electron microscope images were taken of dinoflagellates sampled as part of this project. A catlogue of the images taken is provided as part of the download file at the url given below. ...


4. Decomposition of introduced and natural materials in the Vestfold Hills, and introduced and indigenous Microorganisms [ASAC_251]
Metadata record for data from ASAC Project 251 See the link below for public details on this project. From the abstract of the referenced paper: The fungal floras of ...


5. Determination of trophic relationships between marine predators and commercial marine living resources [ASAC_2301]
Metadata record for data from ASAC Project 2301 See the link below for public details on this project. ---- Public Summary from Project ---- This study develops ...


6. Diet and Feeding Ecology of Emperor Penguins [ASAC_419]
Metadata record for data from ASAC Project 419 See the link below for public details on this project. From the abstracts of some of the referenced papers: The ...


7. Diving Physiology and Energy Requirements of Free Ranging Southern Elephant Seals [ASAC_589]
Southern elephant seals are among the deepest diving of all marine mammals. This study examined physiological and behavioural mechanisms used by the seals to conserve energy while diving and estimated ...


8. Ecological and resource modelling in the Southern Ocean, including fish and fisheries ecology [ASAC_2942]
Metadata record for data from ASAC Project 2942 See the link below for public details on this project. Public Ecological sustainability of fisheries is a primary goal for managing human activities ...


9. Effect of Global Change on the Primary Production of Antarctic coastal Ecosystems [ASAC_2518]
Metadata record for data from ASAC Project 2518 See the link below for public details on this project. Global climate change will lead to a reduction in the duration and thickness of sea ice in coastal ...


10. Examination of Distribution and Abundance of Avian Predators in Relation to Prey Densities and to Oceanographic Conditions [ASAC_32]
Metadata record for data from ASAC Project 32 See the link below for public details on this project. From the abstract of the referenced paper: Foods of the South Polar ...


11. Exopolysaccharides from Antarctic bacteria [ASAC_2348]
Exopolysaccharide (EPS) is complex sugar made by many microbes in the Antarctic marine environment. This project seeks to understand the ecological role of microbial EPS in the Southern Ocean, where ...


12. Feeding Ecology of Penguins at Heard Island with Special Emphasis on King Penguins [ASAC_465]
Metadata record for data from ASAC Project 465 See the link below for public details on this project. From the abstracts of the referenced papers: ############# ...


13. Food Consumption and Foraging Success of Free-ranging Southern Elephant Seals [ASAC_769]
Elephant seals use a suite of physiological and behavioural mechanisms to maximise the time they can be submerged. Of these hypo-metabolism is one of the most important, so this study quantified maximum ...


14. Food consumption and energy expenditure of free ranging southern elephant seals [ASAC_857]
Elephant seals use a suite of physiological and behavioural mechanisms to maximise the time they can be submerged. Of these hypo-metabolism is one of the most important, so this study quantified maximum ...


15. Foraging of royal penguins and its relationship to the Antarctic Polar Frontal Zone [ASAC_1001]
The factors that control the number of animals in a population are often difficult to understand. However, this basic understanding is central to managing those populations and assessing how they ...


16. Functional dynamics of the microbial loop in saline lakes of the Vestfold Hills [ASAC_919]
Metadata record for data expected from ASAC Project 919. See the link below for public details on this project. The plankton dynamics of Ace Lake, a sline, meromictic basin in the Vestfold Hills, ...


17. Geochemical and biological linkages in glacier ecosystems [ASAC_2750]
Metadata record for data from ASAC Project 2750 See the link below for public details on this project. Glaciers are not frozen rivers, but another aquatic ecosystem in the cryosphere. Most life on ...


18. Heard Island and McDonald Islands (HIMI) Marine Ecosystem [ASAC_2388]
Metadata record for data from ASAC Project 2388 See the link below for public details on this project. ---- Public Summary from Project ---- The HIMI Ecosystem Project is aimed at examining key predators ...


19. Impact of changes in UV and visible radiation on the reflective properties of plant photosynthetic surfaces [ASAC_941]
We investigated how surface reflectance properties and pigment concentrations of Antarctic moss varied over species, sites, icrotopography, and with water content. We found that species had significantly ...


20. Infaunal marine invertebrate fauna inside and outside of bacterial mats, Casey 2006-07 [ASAC_2201_Bacterial_Mat_Infauna]
Infaunal marine invertebrates were collected from inside and outside of patches of white bacterial mats from several sites in the Windmill Islands, Antarctica, around Casey station during the 2006-07 ...


21. Investigating the relation between aerosol optical depth, dimethylsulphide production and phytoplankton dynamics in the Antarctic Southern Ocean [ASAC_2319]
---- Public Summary from Project ---- Understanding the strength of possible biological feedbacks is crucial to the science of climate change. This project aims to improve our understanding of one ...


22. Macroalgal responses to heavy metals and varying light levels at Casey Station [ASAC_2201_Runcie]   PARENT DIF
1. In situ chlorophyll fluorescence measurements using pulse amplitude technique (PAM) of macroalga Desmarestia menziesii, assessing adaptation to high light exposure after sea ice breakout, and impact ...


23. Methanotrophs in Antarctica [ASAC_869]
Metadata record for data from ASAC Project 869 See the link below for public details on this project. Dataset included are for the characterisation of methanotrophs from saline lakes of the Vestfold ...


24. Modelling investigations of the shoaling of iron-rich upper circumpolar deep water and its role in the regulation of primary production at 60-65S [ASAC_2784]
Metadata record for data from ASAC Project 2784 See the link below for public details on this project. This project utilised an existing 55 year model reanalysis (SODA) - so no new models were developed. ...


25. Mycorrhiza in the Antarctic leafy liverwort (Cephaloziella exiliflora) [ASAC_2275]
Metadata record for data expected from ASAC Project 2275. See the link below for public details on this project. The papers record microscope evidence and molecular evidence for the occurrence of ...


26. Occurrence of eukariotic microbial, fungi and oomycoty from extreme environments [ASAC_2597]
Metadata record for data from ASAC Project 2597. See the link below for public details on this project. The project aims to study the diversity of Antarctic fungi and protists. Comparison with tropical ...


27. Palaeoclimate Analysis of Sediment Cores from the Fjords and Lakes of the Vestfold Hills [ASAC_784]
From the abstracts of some of the referenced papers: The relationship between surface sediment diatom assemblages and measured limnological variables in 33 coastal Antarctic lakes was examined by ...


28. Pelagic Fishes of the Eastern Antarctic Ocean - data from BROKE-East survey [ASAC_865]
This study investigated distribution patterns of pelagic fish, larvae and juveniles collected by RMT trawls during ANARE's BROKE survey to CCAMLR Division 58.4.1 (80 degrees to 150 degrees E and from ...


29. Photokinetic adaptation of sea-ice algae [ASAC_2702]
Metadata record for data from ASAC Project 2702 See the link below for public details on this project. Sea-ice algae are the basis of the Antarctic food web and are essential for healthy functioning ...


30. Photosynthesis of subantarctic plants as affected by leaf and canopy temperature variation [ASAC_2544]
Metadata record for data from ASAC Project 2544 See the link below for public details on this project. Public Summary Recent global warming is evident for many subantarctic islands. Rising temperatures ...


31. Photosynthetic Attributes of Antarctic Plants [ASAC_244]
Metadata record for data from ASAC Project 244 See the link below for public details on this project. From the abstracts of the referenced papers: Photoinhibition of Grimmia antarctici (Grimmia ...


32. Photosynthetic Response of Antarctic and Subantarctic Plants to Light and UV Stress in Undisturbed/Disturbed Habitats [ASAC_227]
Metadata record for data from ASAC Project 227 Photosynthetic Response of Antarctic and Subantarctic Plants to Light and UV Stress in Undisturbed/Disturbed Habitats including Recommendation ...


33. Photosynthetic rates of Antarctic sea-ice algae [ASAC_854]
From the abstract of one of the papers: Oxygen microelectrodes were used to measure the photosynthetic rates of Antarctic fast ice algal mats. Using the oxygen flux across the diffusive boundary ...


34. Physical and biogeochemical dynamics of the subantarctic zone [ASAC_2720]   CHILD DIFs
This metadata record is a 'Parent' metadata record for ASAC project 2720. See the link for the related 'Child' metadata records. The overall objective is to characterise Southern Ocean marine ecosystems, ...


35. Preferred foraging areas of Heard Island albatrosses during chick raising and implications for the management of incidental mortality in fisheries [ASAC_2388_alb_foraging]
From the abstract of the referenced paper: 1. Incidental mortality in fisheries is causing declines in many albatross populations around the world. To assess potential interactions with ...


36. Preliminary investigation of growth and photosynthesis of sea ice algae during winter [ASAC_832]
Microalgal assemblages associated with the winter Antarctic pack ice sheet were examined for photosynthesis-irradiance characteristics in relation to light availability. Pack ice, the dominant form ...


37. Primary Production in the Sub-Antarctic and Polar Frontal Zones; SAZ-Sense Voyage, 2007 [ASAC_40_SAZ-Sense_Primary_Production]
The Sub-Antarctic Zone (SAZ) in the Southern Ocean provides a significant sink for atmospheric CO2 and quantification of this sink is therefore important in models of climate change. During the SAZ-Sense ...


38. Production and Fate of Dissolved and Particulate Organic Matter During Antarctic Phytoplankton Blooms [ASAC_630]
From the abstract of one of the papers: Phytoplankton biomass and speciation were monitored at an inshore site near Davis Station, East Antarctica during three consecutive summer seasons (December-February, ...


39. Responses and adaptations by two seal species to variability in the Southern Ocean ecosystem [ASAC_2753]
Metadata record for data from ASAC Project 2753 See the link below for public details on this project. Public Weddell and southern elephant seals are high-order predators living in the Antarctic ...


40. Role of micronutrients in the sea ice microbial ecosystem [ASAC_2299]
The productivity of Antarctic waters may be controlled by the amount of iron. Experiments have shown that this is probably the case for phytoplankton but as yet we do not know if iron limits the growth ...


41. Samples collected for HPLC pigments, microscopy and flow cytometry for the SAZ-SENSE project [ASAC_2720_filtration]   PARENT DIF
Metadata record for data from ASAC Project 2720 See the link below for public details on this project. The overall objective is to characterize Southern Ocean marine ecosystems, their influence on ...


42. Sea Ice Algae of the Saline Lakes of the Vestfold Hills [ASAC_764]
Samples were taken from Ace Lake, Watts Lake, Dingle Lake and Williams Lake. 3-5 ice cores were taken from each lake, in the hope of finding phytoplankton. 13 cm diameter cores, sectioned at 20 cm ...


43. Sea Ice Biota of Coastal Eastern Antarctica [ASAC_875]
The distribution and abundance of ice-associated copepods in the fast ice of the Australian Antarctic Territory were investigated over a distance of approximately 650 km between October and December ...


44. Southern Ocean Calcareous Zooplankton Response to Ocean Acidification [ASAC_3046]
Metadata record for data from AAS (ASAC) project 3046. Public The overall objective is to characterise the response of Southern Ocean calcareous zooplankton to ocean acidification resulting from ...


45. Stable isotope analysis of invertebrate epifauna collected around Casey station, East Antarctica, for the TRENZ program. [ASAC_2948_TRENZ_Stable_Isotopes]   PARENT DIF
A variety of epifaunal invertebrates were collected from hard substrates and soft sediment habitats at various sites in the Windmill Islands near Casey station in East Antarctica. Collected fauna ...


46. Status of Disease in the Emperor Penguins of Auster Rookery [ASAC_2954]
Metadata record for data from ASAC Project 2954. See the link below for public details on this project. Public The primary goal of this project is to determine the status and origin of diseases ...


47. Taxonomy of Halophiles from Antarctic Soils [ASAC_253]
A number of moderate halophiles tolerating 10-15% salt, and extreme halophiles tolerating 22% salt were isolated from soils of the Vestfold Hills. The extreme halophiles were identified as Halomonas ...


48. The Use of Lipid Biomarkers in Euphausia superba as a Parameter for Determining Energy Flow in the Antarctic Marine Food Web [ASAC_712]
From the abstracts of some of the referenced papers: During a period of short-term (19 days) starvation, total lipid in the digestive gland of Euphausia superba Dana decreased from 21 to 9% dry weight. ...


49. UV climate over the Southern Ocean south of Australia, and its biological impact - Cell count results [ASAC_2210_cell_counts]
Minicosm design: Three successive experiments to a maximum incubation of 14 days were performed from mid November to early January in the summer of 2002/03 in a temperature controlled shipping container ...


50. UV climate over the Southern Ocean south of Australia, and its biological impact - Dissolved Organic Carbon (DOC) results [ASAC_2210_DOC]
Minicosm design: Three successive experiments to a maximum incubation of 14 days were performed from mid November to early January in the summer of 2002/03 in a temperature controlled shipping container ...


Showing 1 through 50 of 1047 Next
Click here for a static view of records.

Link to Web Site