Mecury Concentrations in Ten Species of Australian Waterfowl (Family Anatidae)

1984 ◽  
Vol 11 (2) ◽  
pp. 387 ◽  
Author(s):  
GJ Bacher ◽  
FI Norman
Keyword(s):  
Significant Positive Correlation ◽  
Total Mercury ◽  
Dry Weight ◽  
Positive Correlation ◽  
South Eastern ◽  
Black Duck ◽  
Eastern Australia ◽  
Wet Weight ◽  
South Eastern Australia

Total mercury concentrations in wing muscle of 10 species of waterfowl (Anatidae) collected during 1977 and 1978 in south-eastern Australia ranged from 0.08 � 0.04 (mean � SD) g g-1 wet weight in Australian shelduck Tadorna tadornoides and Pacific black duck Anas superciliosa, to 0.17 � 0.08 g g-1 in freckled duck Stictonetta naevosa. No significant differences in concentrations of mercury in muscle were found between sexes or between juvenile and adult birds. Total mercury concentrations in feathers were 3.01 � 0.09 g g-1 dry weight in Pacific black duck and 3.27 � 1.11 g g-1 in grey teal Anas gibberifrons. A significant positive correlation (r= 0.7783; P<0.01) was found between mercury concentrations in wing muscles and feathers of Pacific black duck.

Organochlorine Residues in Wings of Ducks in South-Eastern Australia.

1980 ◽  
Vol 7 (1) ◽  
pp. 139 ◽  
Author(s):  
P Olsen ◽  
H Settle ◽  
R Swift
Keyword(s):  
Breast Muscle ◽  
South Eastern ◽  
Black Duck ◽  
Eastern Australia ◽  
Wet Weight ◽  
Pooled Samples ◽  
South Eastern Australia

In March 1977 one wing was collected from each duck of 12 species from 10 sites in south east Australia. Feathers were removed and the wing was ground for estimation of organochlorine residues. In 1978 there were 25 whole male Pacific black ducks (Anas superciliosa) analysed. Total DDT ranged from 0.03 to 316.1/106 wet weight between individual Pacific black duck wings and from 0.02 to 15.10/106 in pooled samples of wings for each species. There were significant positive relations between total DDT residue in wing and those in liver, brain, breast muscle and fat of individual Pacific black ducks. Residues may be important in breeding of ducks and because the ducks are shot and eaten by man.

Dung burial by native and introduced dung beetles (Scarabaeidae)

1994 ◽  
Vol 45 (8) ◽  
pp. 1799 ◽  
Author(s):  
M Tyndale-Biscoe
Keyword(s):  
Introduced Species ◽  
Native Species ◽  
Dry Weight ◽  
Dung Beetle ◽  
Dung Beetles ◽  
South Eastern ◽  
Eastern Australia ◽  
South Eastern Australia

The quantity of dung buried and shredded by dung beetles at four sites in south-eastern Australia was found to be positively correlated with the dry weight (biomass) of beetles in the pads. Each of the four sites has two abundant native species of dung beetles, and one to five well-established introduced species present. At Uriarra, where only one introduced species is common, a mean of 7 . 2 l � 1.94% (1990-91) and 6.01�1.31% (1991-92) of the dung was buried per week. At Fyshwick, with two common introduced species of dung beetles, 22.27� 4.03% (1990-91) and 12 04�2 72% (1991-92) of the dung was buried per week. Braidwood, with four introduced species, had a mean of 15.81� 2.82% (1991-92) weekly dung buried, and Araluen, with five introduced species, had 30.18�8- 73% (1992-93) dung buried per week. Dung beetle numbers were low at all sites during the first half of 1991-92 season due to a drought throughout the region. Dung shredding averaged less than 12% over the seasons at all sites, but fluctuated from 0 to 70%, depending mainly on beetle numbers in the dung pads on individual occasions. Increasing numbers of exotic dung beetles throughout the pastoral areas of Australia should result in increased amounts of dung buried and shredded, with correspondingly increased benefits to Australian agriculture.

Metal levels in the mussel Mytilus edulis collected from estuaries in south-eastern Australia

1982 ◽  
Vol 33 (2) ◽  
pp. 363 ◽  
Author(s):  
M Wooton ◽  
AK Lye
Keyword(s):  
Mytilus Edulis ◽  
Weight Basis ◽  
The South ◽  
South Eastern ◽  
Eastern Australia ◽  
Metal Levels ◽  
Mussel Culture ◽  
Wet Weight ◽  
South Eastern Australia

The levels of six metals were determined in M. edulis collected from five sites on the south-eastern Australian coast. On a wet weight basis, levels (�g g-1) were: Pb, 1.68-4.15 ; Cu, 1.62-3.77; Cr, 2.27-3.83; Ni, 1.41-3.49: Cd, 0.39-0.63; and Zn, 20.64-40.38. On the basis of metal levels, Eden and Jervis Bay were less suitable as sites for mussel culture than Batemans Bay, Lakes Entrance and Merimbula.

Population ecology of the velvet gecko,Oedura lesueuriiin south eastern Australia: Implications for the persistence of an endangered snake

2008 ◽  
Vol 33 (7) ◽  
pp. 839-847 ◽  
Author(s):  
JONATHAN K. WEBB ◽  
DAVID A. PIKE ◽  
RICHARD SHINE
Keyword(s):  
Population Ecology ◽  
South Eastern ◽  
Eastern Australia ◽  
South Eastern Australia

Combining management and breeding advances to improve field pea (Pisum sativum L.) grain yields under changing climatic conditions in south-eastern Australia

Euphytica ◽  
2011 ◽  
Vol 180 (1) ◽  
pp. 69-88 ◽  
Author(s):  
L. S. McMurray ◽  
J. A. Davidson ◽  
M. D. Lines ◽  
A. Leonforte ◽  
M. U. Salam
Keyword(s):  
Pisum Sativum ◽  
Climatic Conditions ◽  
Field Pea ◽  
Grain Yields ◽  
South Eastern ◽  
Pisum Sativum L ◽  
Eastern Australia ◽  
South Eastern Australia
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