Variation in wood density of Pinusradiata in New South Wales, Australia

1989 ◽  
Vol 19 (3) ◽  
pp. 289-294 ◽  
Author(s):  
J. Wilkes
Keyword(s):  
New South ◽  
New South Wales ◽  
Basic Density ◽  
Winter Rainfall ◽  
Breast Height ◽  
South Wales ◽  
Age Variations ◽  
Foliar Phosphorus ◽  
Extreme Difference ◽  
Phosphorus Levels

Basic density was assessed at 23 positions in stems of mature Pinusradiata D. Don growing at 22 sites throughout New South Wales. The most striking and consistent form of variation was within stem, where density increased appreciably in the centrifugal direction, e.g., by an average of 44% over the first 26 rings at breast height. Less obviously, a basipetal increase occurred low in the bole in tissues of a given formative age. Variations in density between trees on a single site frequently exceeded 20%. The extreme difference between sites was approximately 20%, with 20 of the stands differing by less than 11%. Across the sites, density tended to vary positively with rainfall in the summer months (R2 = 0.27–0.29), and negatively with foliar phosphorus levels (R2 = 0.16–0.31), winter rainfall (R2 = 0.10–0.19), and the productivity parameters of stem diameter (R2 = 0.21–0.26) and height (R2 = 0.14–0.24). Density was essentially unrelated to site temperature. Effects, particularly those of rainfall, are possibly mediated in part by the earlywood/latewood ratio in annual increments.

The winter mortality of eggs of Chortoicetes terminifera (Walk.) (Orthoptera: Acrididae) during the outbreak of 1955.

1965 ◽  
Vol 13 (1) ◽  
pp. 47 ◽  
Author(s):  
TW Hogan
Keyword(s):  
Mortality Rate ◽  
New South ◽  
New South Wales ◽  
South Australia ◽  
Winter Mortality ◽  
Winter Rainfall ◽  
Median Percentage ◽  
Factors Affecting ◽  
South Wales ◽  
North Eastern

Migratory swarms of Chortoicetes terminifera established egg beds in New South Wales, South Australia, and Victoria during the autumn of 1955. Samples of eggs were taken from a number of districts in New South Wales and Victoria during the winter and the mortality rate was determined. Scelio fulgidus was the only parasite present but it was very widespread with a median percentage parasitization of 5%. Mortality from other causes had a median of 39%. Winter rainfall during 1955 was considerably above average and in some situations waterlogging of the soil in which the eggs were laid may have been one of the factors affecting survival. Low temperature seems more likely to have been the factor of importance at the higher altitudes in north-eastern Victoria where hatching was particularly poor.

Foraging behaviour and habitat use of the feathertail glider (Acrobates pygmaeus) at Waratah Creek, New South Wales

1995 ◽  
Vol 22 (4) ◽  
pp. 457 ◽  
Author(s):  
RL Goldingay ◽  
RP Kavanagh
Keyword(s):  
Foraging Behaviour ◽  
New South ◽  
New South Wales ◽  
Significant Preference ◽  
Habitat Types ◽  
Breast Height ◽  
Nectar Feeding ◽  
South Wales ◽  
Frequency Of Use ◽  
Production Forests

Observations were made of the foraging behaviour of the feathertail glider (Acrobates pygmaeus) at Waratah Creek in south-eastern New South Wales (NSW). Gliders were observed on 164 occasions, including 42 observations of feeding, 41 observations of moving along a substrate and 68 observations of gliding to a tree, an understorey plant or to the ground. On the remaining occasions, gliders were lost from view before any information was recorded. Most (91%) feeding observations occurred in live eucalypts. When feeding in eucalypts, 61% of observations were of gliders searching under loose shedding bark and 32% were of gliders engaged in foliage gleaning. Foraging amongst loose bark is suggested to represent feeding on honeydew and arthropods while foliage gleaning is indicative of gliders engaged in feeding on manna, honeydew, lerps and arthropods. Nectar feeding was uncommon and only 3% of trees in which gliders were observed were flowering. In contrast, 42% of these trees showed signs of recent bark shed. Two observations were of gliders foraging on the ground, suggesting that arthropods may also be captured there. Comparison of the frequency of use of different tree species with the abundance of those species showed a highly significant preference for E. fastigata, while other species were used in proportion to their abundance. Analysis also showed that gliders used trees in the smallest of three size classes (<40 cm diameter at breast height) less often than expected on the basis of the abundance of these trees. Overall, gliders used the six different habitat types in the study area in proportion to their abundance but showed significant seasonal differences in the use of these habitats. These results permit consideration of the management requirements of the feathertail glider in the timber production forests of NSW. It is concluded that the requirements of this species are catered for by existing management prescriptions.

Observations on roost use by the yellow-bellied sheathtail-bat (Saccolaimus flaviventris) in northern New South Wales, Australia

2017 ◽  
Vol 39 (1) ◽  
pp. 95 ◽  
Author(s):  
Lukas L. Clews
Keyword(s):  
Social Interaction ◽  
New South ◽  
New South Wales ◽  
Insectivorous Bats ◽  
Habitat Features ◽  
Breast Height ◽  
South Wales ◽  
Mean Diameter ◽  
Eucalyptus Albens ◽  
Roost Trees

Hollow-bearing trees are recognised as essential habitat features for insectivorous bats and provide sites for mating, the rearing of young, hibernation, protection from predators, and social interaction. The characteristics of hollow-bearing trees used as roosts by insectivorous bats in Australia are poorly known. To help fill this gap, this note presents data on tree roost characteristics for the yellow-bellied sheathtail-bat (Saccolaimus flaviventris) obtained from northern New South Wales, Australia. Of the 19 roost trees observed, most were live Eucalyptus albens trees with an incomplete crown with substantial numbers of dead limbs. Roosts selected were, on average, 9.3 m high with an entrance diameter of 12.7 cm in trees with a mean diameter at breast height of 49.5 cm. All entrance hollows were located at the end of a rotten spout formed when a branch had broken off the tree. These observations are some of the first to document the characteristics of roost trees for this species in New South Wales and this information can be used by land managers to identify and retain suitable roosting habitat for S. flaviventris in the landscape.

Agricultural drought analyses for temperate Australia using a biophysical pasture model. 1. Identifying and characterising drought periods

2008 ◽  
Vol 59 (11) ◽  
pp. 1049 ◽  
Author(s):  
G. M. Lodge ◽  
I. R. Johnson
Keyword(s):  
Water Content ◽  
Soil Water ◽  
Soil Water Content ◽  
New South ◽  
New South Wales ◽  
Agricultural Drought ◽  
Wagga Wagga ◽  
Winter Rainfall ◽  
Seasonal Drought ◽  
South Wales

The SGS Pasture Model was used to estimate daily total soil water content (mm) for the period 1998–2001 (using experimental data) and from July 1905 to June 2005 (using a 100-year daily climate file). For both model simulations, the correlation coefficient for actual and predicted data was >0.86. Four sites were examined, three in the winter-rainfall zone (Albany, Western Australia; Hamilton, Victoria; and Wagga Wagga, New South Wales) and one in the predominantly summer-rainfall zone (Barraba, New South Wales) of temperate Australia. Trends were detected in long-term rainfall data for lower mean annual rainfall at the Albany site since the mid 1950s and at the Hamilton site since the mid 1970s. Analyses of days in which herbage accumulation was likely to be limited only by water allowed a minimum soil water content to be defined; below this value, soil water was in deficit. A drought period was defined as occurring after >50 consecutive days of predicted soil water deficit. For the four sites, six categories of drought duration were described, ranging from >50–120 days (seasonal drought) to >364 days (exceptional drought). Numbers of predicted droughts were 90, 90, 65, and 60, respectively, at Albany, Hamilton, Wagga Wagga, and Barraba sites. At the three winter-rainfall sites, most predicted droughts occurred in a regular pattern and were an extension of a seasonal drought, but at the Barraba site they were of a longer duration and irregular in occurrence.

Radiotherapy utilization in New South Wales from 1996 to 1998: Comment

2000 ◽  
Vol 44 (4) ◽  
pp. 483-484 ◽  
Author(s):  
JH Kearsley
Keyword(s):  
New South ◽  
New South Wales ◽  
South Wales

Plants of New South Wales

2009 ◽  
Author(s):  
F. Von Mueller
Keyword(s):  
New South ◽  
New South Wales ◽  
South Wales

Notes and Sketches of New South Wales

2009 ◽  
Author(s):  
Louisa Anne Meredith
Keyword(s):  
New South ◽  
New South Wales ◽  
South Wales

The History of New South Wales

2009 ◽  
Author(s):  
Roderick Flanagan
Keyword(s):  
New South ◽  
New South Wales ◽  
South Wales ◽  
History Of
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