Use of tall wooden poles by four species of gliding mammal provides further proof of concept for habitat restoration

2019 ◽  
Vol 41 (2) ◽  
pp. 255 ◽  
Author(s):  
Ross L. Goldingay ◽  
Brendan D. Taylor ◽  
Jonathan L. Parkyn
Keyword(s):  
Habitat Restoration ◽  
New South ◽  
Population Connectivity ◽  
Proof Of Concept ◽  
The Road ◽  
South Wales ◽  
Sugar Glider ◽  
Squirrel Glider ◽  
Petaurus Breviceps ◽  
Petaurus Australis

Tall wooden poles (glide poles) and rope canopy-bridges are frequently installed along new highways in Australia to maintain population connectivity for gliding mammals. Knowledge of the use of these structures is rudimentary. We monitored two pairs of glide poles and a canopy-bridge over three years at Port Macquarie, New South Wales. The sugar glider (Petaurus breviceps) and the squirrel glider (Petaurus norfolcensis) were collectively detected on 12–18% of nights on the pole pairs compared with 1% on the rope-bridge. The feathertail glider (Acrobates frontalis) was detected on 3% of nights on the pole pairs compared with 0.2% on the rope-bridge. The yellow-bellied glider (Petaurus australis) was detected twice on one pole. Our results demonstrate that gliding mammals readily use glide poles. Further research is needed to resolve whether glide poles can mitigate the barrier effect of the road canopy gap.

Population ecology of the squirrel glider (Petaurus norfolcensis) and the sugar glider (P. breviceps) (Maruspialia : Petauridae) at Limeburners Creek, on the central north coast of New South Wales

1995 ◽  
Vol 22 (4) ◽  
pp. 471 ◽  
Author(s):  
DG Quin
Keyword(s):  
Population Ecology ◽  
New South ◽  
New South Wales ◽  
Food Resource ◽  
North Coast ◽  
Juvenile Dispersal ◽  
South Wales ◽  
Sugar Glider ◽  
Timing Of Births ◽  
Squirrel Glider

The population ecology of the squirrel glider (Petaurus norfolcensis) and the sugar glider (P. breviceps) was studied at Limeburners Creek Nature Reserve, on the central north coast of New South Wales. The study was undertaken between July 1986 and November 1988. Sugar and squirrel gliders at Limeburners Creek exhibited similar home-range sizes (2.54 ha) despite considerable differences in mean mass between the species (squirrel glider 192-213 g; sugar glider, 104-119 g). Squirrel gliders existed at higher densities (049-1.54 ha-') than did sugar gliders (0.24454 ha-') and populations of both species exhibited male-biased sex ratios. The timing of births was not consistent between years and, at least in the squirrel glider, occurred in almost all months of the year over the 2.5-year study. Usually a winter peak in births that extended into spring was apparent, sometimes following an autumn peak. Mean litter size for both species (1.8-1.9) was similar to that recorded for the sugar glider in Victoria. Most adult females of both species exhibited the capacity to raise two litters in a year. Hence, natality rates (2.3-2.4 young per year) at Limeburners Creek were high relative to those recorded for the sugar glider in Victoria. Recruit persistence time (3.0-3.5 seasons) was similar between the species and recruitment appeared to be most successful during years when heavy eucalypt and Banksia flowering was recorded. Populations of both species were characterised by high rates of juvenile dispersal and mortality. Young gliders dispersed at a mean age of 10.9 and 12.5 months in the sugar glider and the squirrel glider, respecti~e1y;SquirreI gliders nested in colonies of 2-Bindividuals. Usually at least one male and two females nested together, suggesting a polygynous mating strategy. The mating system of the sugar glider at Limebumers Creek was less clear, but colonies appeared to comprise at least monogamous pairs with or without a surplus of males. Sugar glider colonies at Limebumers Creek varied in size from two to seven individuals. The larger squirrel gliders were clearly dominant to the smaller sugar gliders in interspecific behavioural interactions. Inconsistencies in body-weight fluctuations between years for both species were thought to be a consequence of the unpredictable nature of the aseasonal, coastal climates and resulting food resource abundances.

Can Flower-Feeding Marsupials Meet Their Nitrogen Requirements on Pollen in The Field?

1998 ◽  
Vol 20 (3) ◽  
pp. 383
Author(s):  
I.G van Tets
Keyword(s):  
New South ◽  
Field Studies ◽  
South Wales ◽  
Arboreal Marsupials ◽  
Sugar Glider ◽  
Cercartetus Nanus ◽  
Pollen Density ◽  
A Site ◽  
Petaurus Breviceps ◽  
Barren Grounds

Two arboreal marsupials, the eastern pygmy possum (Cercartetus nanus) and the sugar glider (Petaurus breviceps) have exceptionally low maintenance nitrogen requirements on pollen diets. This study compares their nitrogen requirements with the density of Banksia pollen that is available in the Barren Grounds Nature Reserve, New South Wales, a site where both species are known to forage on Banksia inflorescences. The pollen density was sufficiently high that both species were capable of meeting their maintenance nitrogen requirements on pollen whenever Banksia spp. were in flower. C. nanus required a smaller proportion of its home range than P. breviceps to do so and pollen was likely to be of much greater nutritional significance to both species in winter than in summer. This corresponds closely with the results of field studies comparing the diets of these mammals at different times of the year. Pollen is an important source of nitrogen for flower-feeding marsupials but its importance will vary between species depending on the marsupial's requirements, its body size and on the quantity of pollen that is available.

STRUCTURE and PRICE DETERMINATION IN THE ROAD HAULAGE INDUSTRY IN NEW SOUTH WALES

1956 ◽  
Vol 32 (2) ◽  
pp. 291-304 ◽  
Author(s):  
H. Kolsen
Keyword(s):  
New South ◽  
New South Wales ◽  
Price Determination ◽  
The Road ◽  
South Wales ◽  
Road Haulage

Use of Tree Hollows by Two Sympatric Gliding Possums, The Squirrel Glider, Petaurus norfolcensis and The Sugar Glider, P. breviceps.

1998 ◽  
Vol 20 (1) ◽  
pp. 79
Author(s):  
B.J. Traill ◽  
A. Lill
Keyword(s):  
Artificial Nest ◽  
Nest Boxes ◽  
Forestry Practices ◽  
Tree Hollows ◽  
Sugar Glider ◽  
Squirrel Glider ◽  
Petaurus Breviceps ◽  
Artificial Nest Boxes

Populations of the Squirrel Glider, Petaurus norfolcensis and the Sugar Glider, P. breviceps, are often sympatric and the two species are potential competitors for tree hollows. Their use of hollows and artificial nest-boxes was examined in a Box-Ironbark forest where natural hollows are scarce due to past forestry practices. We found gliders used hollows in the boles and branches of trees and in coppicing stumps. There was considerable interspecific overlap in the use of hollows and nest-boxes, both by gliders and other birds and mammals. Both gliders preferred hollows and nest-boxes with narrow entrances (<50 mm diameter). Petaurus breviceps preferred nest-boxes and possibly natural tree hollows with entrances too narrow for the larger P. norfolcensis. When abundant nest-boxes of this type were introduced at the study site, P. breviceps numbers increased and then decreased when the nest-boxes were removed. The results suggest that the larger P. norfolcensis monopolise the best available hollows. Petaurus breviceps numbers may have been limited by a lack of suitable hollows.

Variation in the home-range size of the squirrel glider (Petaurus norfolcensis)

2010 ◽  
Vol 32 (2) ◽  
pp. 183 ◽  
Author(s):  
Ross L. Goldingay ◽  
David J. Sharpe ◽  
Matt D. J. Dobson
Keyword(s):  
Home Range ◽  
Habitat Quality ◽  
New South ◽  
Home Range Size ◽  
Range Size ◽  
Home Ranges ◽  
Minimum Convex Polygon ◽  
South Wales ◽  
Squirrel Glider ◽  
Range Estimate

The home-range area of animals may vary geographically and in response to habitat quality. We investigated the size of squirrel glider (Petaurus norfolcensis) home ranges near Brisbane, Queensland, and at Tea Gardens on the central coast of New South Wales. Habitat at both sites had been partially cleared and had been subjected to grazing for several decades. Twelve gliders were tracked over an average of 3.5 months in Brisbane. The fixed kernel (FK95%) home-range estimate averaged 4.6 ± 0.7 (s.e.) ha while the minimum convex polygon (MCP100%) averaged 6.7 ± 1.5 ha. Six gliders were tracked over 1 month at Tea Gardens. The FK95% home-range estimate averaged 14.8 ± 2.4 ha while the MCP100% averaged 13.3 ± 3.1 ha. The Tea Gardens values are derived from relatively short periods and are likely to underestimate the areas used. This study demonstrates that home-range size can vary substantially in the squirrel glider. This has implications for understanding how this species responds to variation in habitat quality and highlights the need for site-specific studies to inform aspects of management.

scholarly journals Effects of logging, fire and drought on possums and gliders in the coastal forests near Bega, NSW

1987 ◽  
Vol 14 (3) ◽  
pp. 263 ◽  
Author(s):  
D. Lunney
Keyword(s):  
Tree Species ◽  
New South ◽  
Full Range ◽  
Habitat Preferences ◽  
New South Wales ◽  
Coastal Forests ◽  
South Wales ◽  
Commercial Species ◽  
Pseudocheirus Peregrinus ◽  
Petaurus Breviceps

Seven species of possums and gliders were found during a survey in logged coastal forests near Bega, New South Wales. A study of the preferences for the various tree species showed that both commercial and non-commercial species must be retained to support the full range of possum and glider species. Spotlight searches were carried out in 6 adjacent felling areas each autumn from 1981 to 1983. Four species (Petaurus breviceps, P. australis, Petauroides volans and Pseudocheirus peregrinus) were seen frequently enough to determine their habitat preferences. There were significantly fewer possums and gliders in logged areas, with a greater effect on some species, e.g. P. volans, than others, e.g. P. breviceps. Fire rendered the logged areas even less habitable, and drought compounded the effects of logging and fire by further reducing numbers. Deep unlogged gullies were found to be crucial refuges from logging, fire and drought. The primary conclusions are that the current logging operation is causing a significant reduction in numbers, and that gullies need to be redefined to include all drainage lines and to remain unlogged.

The characteristics of squirrel glider (Petaurus norfolcensis) den trees in subtropical Australia

2008 ◽  
Vol 56 (1) ◽  
pp. 13 ◽  
Author(s):  
Georgia L. Beyer ◽  
Ross L. Goldingay ◽  
David J. Sharpe
Keyword(s):  
New South ◽  
Effective Management ◽  
Living Tree ◽  
Breast Height ◽  
North East ◽  
South Wales ◽  
Dead Trees ◽  
Squirrel Glider ◽  
Tree Hollow ◽  
Subtropical Australia

Effective management of tree-hollow-dependent wildlife requires a sound knowledge of the characteristics of the trees used for shelter or breeding. We used radio-tracking to identify the den trees of squirrel gliders (Petaurus norfolcensis) in south-east Queensland (Qld) and north-east New South Wales (NSW). Squirrel gliders used dead trees as well as 13 species of living tree for dens across the two locations. Dead trees accounted for a large percentage of dens (54% of 48 dens in Qld, and 50% of 18 dens in NSW) despite comprising only 3–10% of the forest (trees >20 cm diameter at breast height (dbh)) at each location. This preference is largely due to dead trees being more likely to contain hollows, accounting for 26–44% of available hollow-bearing trees. Mean den tree size (dbh) was 48.9 ± 2.4 cm in Qld and 62.8 ± 5.6 cm in NSW. Den entrance height averaged 6.8 ± 1.2 m in Qld and 11.9 ± 1.3 m in NSW. Fissures in the trunk and holes in branches were the most common of six hollow types used. At one location branch end hollows were ignored relative to their availability. Den entrances varied in size (2.5–12 cm wide) but most were ≤5 cm in diameter. Entrance size of hollows appears to be the hollow attribute of most importance to squirrel gliders. Monitoring of these den trees over several years revealed the collapse of three dead den trees at each location, which is equivalent to an annual loss of 3% of den trees. Further research is needed to determine whether this will lead to a future shortage of den trees.

Acari prostigmata (excluding Trombiculidae) parasitic on Australian vertebrates: an annotated checklist, keys and bibliography

1990 ◽  
Vol 4 (6) ◽  
pp. 1283 ◽  
Author(s):  
R Domrow
Keyword(s):  
New Species ◽  
New South ◽  
New South Wales ◽  
South Wales ◽  
Two New Species ◽  
Nasal Passages ◽  
Petaurus Breviceps ◽  
Host Parasite ◽  
New Synonymy ◽  
Annotated Checklist

The prostigmatic mites (excluding Trombiculidae) parasitic on, or associated with, Australian vertebrates are reviewed, and keys and illustrations are provided to enable separation of all 45 genera and 121 species recognised. Two new species are described: Paraspeleognathopsis exaeta sp. nov. (Erynetidae), from the nasal passages of the marsupial Petaurus breviceps in New South Wales, and Radfordia hydromys Fain sp. nov. (Myobiidae). New synonymy in Ereynetidae: Boydaia Womersley, 1953 = Coboydaia Fain, 1971b; Neospeleognathopsis Fain, 1958b = Pteropignathus Fain & Lukoschus, 1979b; Psittaboydaia Fain, 1985 = Trichoglossiella Fain, 1985; in Myobiidae: Australomyobia dasycercus Fain, 1973a = A. d. antechinus Fain & Lukoschus, 1979d; Calcarmyobia miniopteris (Womersley, 1941a) = C. o. orianae Uchikawa, 1985c; Ewingana bispinosa Radford, 1948 = E. b. longispina Fain & Lukoschus, 1979c; Radfordia Ewing, 1938 = Pseudoradfordia Dubinin, 1957a = Syconycterobia Fain, 1973b; in Demodecidae: Demodex equi Railliet, 1893 = D. caballi Desch & Nutting, 1979a; D. ovis Railliet, 1893 = D. aries Desch, 1987; in Leeuwenhoekiidae: Odontacarus Ewing, 1929 = Leogonius Vercammen-Grandjean, 1968. A host-parasite list and bibliography are included.

Contract Labour and Industrial Regulation: Owner-Drivers in the Sydney Ready-Mixed Concrete Industry

1984 ◽  
Vol 26 (3) ◽  
pp. 291-314 ◽  
Author(s):  
Mark Bray
Keyword(s):  
Metropolitan Area ◽  
New South ◽  
Road Transport ◽  
Initial Attempt ◽  
The Road ◽  
South Wales ◽  
Close Relationship ◽  
Transport Workers ◽  
Ready Mixed Concrete ◽  
Mixed Concrete

The study of contract labour and its implications for industrial regulation has been neglected in Australia. As an initial attempt to remedy past neglect, this paper offers an account of contract labour (in the form of self-employed o wner-drivers) and its regulation in one section of the road transport industry, namely, the delivery of ready-mixed concrete in the Sydney metropolitan area. This industry represents an unusual example of contractors becoming strongly unionised and establishing an effective pattern of joint regulation over their rates and conditions. The close relationship between the contractors and the Transport Workers Union has also led to the industry playing an important role in the wider struggle between unions and employers in New South Wales over legislation designed to regulate contract labour.

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