scholarly journals The effects of non-sex-biased shooting on some population characteristics of the Eastern Grey Kangaroo in the Murrurundi area, New South Wales

1997 ◽  
Vol 30 (3) ◽  
pp. 330-339 ◽  
Author(s):  
D.J. Shelly
Keyword(s):  
New South ◽  
New South Wales ◽  
Population Characteristics ◽  
South Wales ◽  
Grey Kangaroo

The Diet of the Eastern Grey Kangaroo and Wallaroo in Areas of Improved and Native Pasture in the New England Tablelands.

1983 ◽  
Vol 10 (2) ◽  
pp. 203 ◽  
Author(s):  
RJ Taylor
Keyword(s):  
New England ◽  
New South ◽  
New South Wales ◽  
Plant Parts ◽  
South Wales ◽  
Grey Kangaroo ◽  
Native Pasture ◽  
Tussock Grasses

The diet of the eastern grey kangaroo and wallaroo was compared at 2 sites, Lana and Newsholme, in the New England tablelands of New South Wales. At Lana, the pastures had been fertilized for 20 yr and were dominated by low-fibre grasses such as Bothriochloa, Eragrostis, Sporobolus, Microlaena, Danthonia and Vulpia; some paddocks had been sown with introduced grasses, Phalaris, Festuca and lucerne. Coarse tussock grasses such as Poa spp., Stipa and Danthonia pallida predominated at Newsholme. The major difference in the diet of the 2 spp. was in winter when individuals on the unimproved area at Newsholme ate a higher proportion of tussock grasses and less low-fibre grass. Both spp. consistently selected for low-fibre grass leaf; they did not differ in their use of plant parts. The diets contained many plant spp. in common, although there were major differences in the use of several spp. The plant spp. favoured only by the wallaroo were of a higher quality than those favoured only by the grew kangaroo.

The population pattern of Miniopterus schrebersii (Chiroptera) in north-eastern New South Wales

1966 ◽  
Vol 14 (6) ◽  
pp. 1073 ◽  
Author(s):  
PD Dwyer
Keyword(s):  
New South ◽  
New South Wales ◽  
Population Characteristics ◽  
Adult Males ◽  
Age Classes ◽  
Adult Females ◽  
South Wales ◽  
Wide Range ◽  
North Eastern ◽  
Population Pattern

In north-eastern New South Wales Miniopterus schreibersii is found at a wide range of cave and mine roosts as colonies that may include up to several thousands of individuals. Between April 1960 and September 1963 a field study of the biology and population characteristics of this species was carried out. Field criteria permitting aging of individuals were developed. Age classes considered were juveniles (< 9 months), yearlings (9-21 months), and adults (> 21 months). Seasonal changes in numbers, and in the sex and age composition of colonies were followed in detail at several roosts and comparative information was obtained at others. Movement patterns were assessed by a marking and recapture programme in which 1365 recoveries were obtained from a marked (toe clips and bands) population of 8775. Conspicuous sex or age biases or both were shown to exist in clusters of M. schreibersii at specific roosts and it was suggested that clustering in this species functions, in part, as a social spacing mechanism. Segregation of different sex or age classes at specific colonies permitted classification of colonies as (1) maternity colonies in which adult females and their young predominate, (2) "adult" colonies which are predominantly adult, or adult and yearling, in composition, and (3) "juvenile" colonies in which juveniles, or juveniles and yearlings, are almost prevalent. The observed social biases of colonies appeared to be related to particular phases of the reproductive cycle. Certain adult colonies were interpreted as important sites of copulatory behaviour. Recovery data for two of these mating colonies showed that adult females were more transient members of the colony than adult males. Juveniles are often well represented at adult colonies in the autumn, and during this season their presence may be correlated with a drop in the abundance of older males.

Group SIze in the Eastern Grey Kangaroo, Macropus giganteus, and the Wallaroo, Macropus robustus

1982 ◽  
Vol 9 (2) ◽  
pp. 229 ◽  
Author(s):  
RJ Taylor
Keyword(s):  
Group Size ◽  
New South ◽  
New South Wales ◽  
Early Morning ◽  
Frequency Of Occurrence ◽  
South Wales ◽  
Grey Kangaroo ◽  
North Eastern

Data were collected on the occurrence of eastern grey kangaroos and wallaroos in groups on two properties (Lana and Newholme) in north-eastern New South Wales. The density of both species was higher on Lana than on Newholme. The frequency of occurrence of groups of different size was significantly different from that expected if the occurrence was random for both species. For the grey kangaroo on Lana, mean group size was smaller during early morning than during the rest of the day. Mean group size was significantly greater on Lana than on Newholme for both species, and smaller for wallaroos than for grey kangaroos on both properties. For both species, mean group size was significantly correlated with the density of kangaroos in each habitat.

Design of aerial surveys for population estimation and the management of macropods in the Northern Tablelands of New South Wales, Australia

2008 ◽  
Vol 35 (4) ◽  
pp. 331 ◽  
Author(s):  
S. C. Cairns ◽  
G. W. Lollback ◽  
N. Payne
Keyword(s):  
Survey Design ◽  
New South ◽  
New South Wales ◽  
Management Program ◽  
Line Transect ◽  
Design Algorithm ◽  
Management Zones ◽  
South Wales ◽  
Grey Kangaroo ◽  
Harvest Quotas

As part of a kangaroo management program, eastern grey kangaroos (Macropus giganteus) and common wallaroos (M. robustus robustus) are harvested from three kangaroo management zones in north-eastern New South Wales, Australia. To set sustainable harvest quotas, it is necessary to obtain reasonably accurate estimates of the sizes of the populations of these two species of macropod. Recently, this has been done on two occasions using helicopter line-transect surveys. For the most recent of these surveys, conducted in 2004, each management zone was subdivided into three strata of increasing kangaroo density and the surveys were designed in relation to this stratification using an automated survey design algorithm. The results of the surveys were that eastern grey kangaroo densities were estimated as 8.11 ± 1.81 km–2 in the Glen Innes zone, 10.23 ± 2.41 km–2 in the Armidale zone and 4.82 ± 0.87 km–2 in the Upper Hunter zone. Wallaroo densities for these three zones were 3.06 ± 0.73 km–2, 5.68 ± 3.45 km–2 and 4.40 ± 1.01 km–2 respectively. The wallaroo densities were determined by multiplying the initial estimated densities by a correction factor of 1.85. Across the three kangaroo management zones, eastern grey kangaroo densities did not change in any significant way between the two surveys. This was also the case for wallaroos in the Glen Innes and Armidale zones. Wallaroo density in the Upper Hunter zone, however, increased significantly between the two surveys. Over a decade before these surveys were conducted, a series of ground surveys using walked line-transect sampling were undertaken. The density estimates derived from the helicopter surveys proved to be broadly comparable to those derived from the ground surveys, suggesting that conducting helicopter line-transect surveys designed using the method deployed here is effective in producing population estimates for the purpose of kangaroo management.

Population characteristics and management of the long-nosed potoroo (Potorous tridactylus) in high-quality habitat in the Southern Highlands of New South Wales

2015 ◽  
Vol 37 (1) ◽  
pp. 67 ◽  
Author(s):  
Melinda A. Norton ◽  
Alison Prentice ◽  
Juliet Dingle ◽  
Kris French ◽  
Andrew W. Claridge
Keyword(s):  
New South ◽  
New South Wales ◽  
Ground Cover ◽  
Population Characteristics ◽  
European Settlement ◽  
South Wales ◽  
Live Trapping ◽  
Study Sites ◽  
Fox Control ◽  
Potorous Tridactylus

Since European settlement in Australia the long-nosed potoroo (Potorous tridactylus) has suffered greatly from fox predation and habitat loss, fragmentation and degradation. To better understand the threats it faces we examined the population dynamics of the potoroo at two study sites in the Southern Highlands of New South Wales over five years, using live-trapping. As neither site had experienced inappropriate habitat change for over 25 years, fox predation was considered the major threat to this population. An assessment of fox activity and diet was undertaken at both sites for comparison with potoroo abundance. Potoroos increased at both sites over time, although at one site this increase was only in density and not range. The density increase would not have been detected using camera surveys, a monitoring technique recommended for this species. The relative abundance of foxes fluctuated over the study despite fox control in one of the two sites. Analysis of fox scats at the same sites indicated high levels of predation on potoroos. Future management should aim to provide effective fox control (particularly following any fire due to the associated loss of ground cover) and improved fox monitoring to ensure an accurate understanding of what is happening to the fox population.

Harvesting Kangaroos in New South Wales

1977 ◽  
Vol 4 (2) ◽  
pp. 207 ◽  
Author(s):  
RG Sinclair
Keyword(s):  
National Parks ◽  
Management System ◽  
Standing Crop ◽  
New South ◽  
New South Wales ◽  
Red Kangaroo ◽  
South Wales ◽  
Grey Kangaroo ◽  
Future Management

In New South Wales the red kangaroo, Megaleia rufa (Desmarest), and the two species of grey kangaroo, Macropus giganteus Shaw and M. fuliginosus (Desmarest), are harvested commercially. In 1975 the National Parks and Wildlife Service issued permits for 239,764 kangaroos to be shot, but only 48,200 red and 70,200 grey kangaroos were taken. Over western New South Wales the numbers shot represented only 2.3% of the reds and 3.8% of the greys. Most of the harvesting was in areas where kangaroos were abundant. Where densities were low few animals were shot but they accounted for a high proportion of the standing crop-in some areas over 15%. Possible reasons for this under the present management system are discussed, together with the implications for future management.

Population density of eastern grey kangaroos (Macropus giganteus) in a periurban matrix at Coffs Harbour, New South Wales

2018 ◽  
Vol 40 (2) ◽  
pp. 312 ◽  
Author(s):  
Timothy Henderson ◽  
Rajanathan Rajaratnam ◽  
Karl Vernes
Keyword(s):  
Population Density ◽  
Urban Areas ◽  
New South ◽  
New South Wales ◽  
Management Plan ◽  
Urban Region ◽  
South Wales ◽  
Grey Kangaroo ◽  
Direct Counts

We surveyed eastern grey kangaroos at four locations at the Northern Beaches region of Coffs Harbour, New South Wales, to estimate densities in this growing peri-urban region. This region is considered a regional hotspot for human–kangaroo conflict, with numerous kangaroo-related incidents in recent years. Direct counts of kangaroos were undertaken every two months during 2016. Kangaroo densities varied between sites, ranging from 0.2 individuals ha–1 to 4.9 individuals ha–1. Because no estimates of population density exist for the Northern Beaches, our results assisted the development of a regional kangaroo management plan, and contribute to a broader understanding of eastern grey kangaroo densities in peri-urban areas.

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