Observations on the effectiveness of warren destruction as a method of rabbit control in a semi-arid environment.

1979 ◽  
Vol 1 (3) ◽  
pp. 232 ◽  
Author(s):  
JT Martin ◽  
JN Eveleigh
Keyword(s):  
National Park ◽  
New South ◽  
New South Wales ◽  
Arid Environment ◽  
Term Effect ◽  
Low Level ◽  
Rabbit Population ◽  
South Wales ◽  
Original Size ◽  
Semi Arid

The effectiveness of warren ripping as a method for controlling rabbits in a semi-arid environment was tested on a 3000 ha site at Kinchega National Park in western New South Wales. Estimates of rabbit numbers made during the study showed that the immediate effect of warren ripping was to reduce the rabbit population by about 65%. The longer term effect was to stabilise numbers at a relatively low level. The only warrens active 14 months after being ripped were those which gained new burrow entrances within two months of being destroyed. Re-opening rate of warrens was greatest for large limestone warrens where 90% of ripped warrens were again active after two months. Less than 30% of all sandy warrens became active again. Within each re-opened warren, the number of active entrances increased slowly but 14 months after being destroyed they had still not reached their original size.

Establishment and survival of lucerne in a semi-arid environment.

1981 ◽  
Vol 3 (1) ◽  
pp. 99
Author(s):  
VE Rogers
Keyword(s):  
Dry Matter ◽  
Plant Density ◽  
New South ◽  
New South Wales ◽  
Arid Environment ◽  
Dry Matter Production ◽  
South Wales ◽  
Matter Production ◽  
Treat Ment ◽  
Semi Arid

Dry matter production and plant density were measured after seeding lucerne: (Medicago rarii'a) into grassland at two sites in New South Wales having inearl annual rainfalls of 292 and 425 mm. Various methods of minimal tillage establishment were used. Sod-seeding failed to produce a satisfactory stand at either site, even where herbicide had been applied. Survival was best when lucerne was sown in furrows 15 cm wide, the lucerne density after five years being 8 plants ~n'~, or 80,000 plants ha-'. This treat- ment was also superior in dry matter production to the use of furrows of 5 and 10 an width, or to seeding after a single cultivation. The effect on production of a herbicide applied at sowing decreased with increasing width of furrow. The results of this study could also be relevant to the establishment of other species under rangeland conditions.

scholarly journals Phylogenetic placement of a recently discovered population of the threatened alpine she-oak skink Cyclodomorphus praealtus (Squamata: Scincidae) in Victoria

2021 ◽  
pp. 153-157
Author(s):  
Joanna Sumner ◽  
Margaret L. Haines ◽  
Peter Lawrence ◽  
Jenny Lawrence ◽  
Nick Clemann
Keyword(s):  
Phylogenetic Analysis ◽  
National Park ◽  
New South ◽  
New South Wales ◽  
Last Glacial ◽  
Evolutionarily Significant Units ◽  
Phylogenetic Placement ◽  
South Wales ◽  
Disjunct Populations ◽  
The Last Glacial

The alpine she-oak skink Cyclodomorphus praealtus is a threatened alpine endemic lizard from the mainland of Australia. The species is previously known from disjunct populations in Kosciuszko National Park in New South Wales and three isolated localities in the Victorian Alps. The New South Wales and Victorian populations represent separate evolutionarily significant units. In 2011, a fourth Victorian population was discovered. We conducted a phylogenetic analysis and determined that the newly discovered population is discrete and may have been separated from other populations since the end of the last glacial maxima. This population requires separate management.

The butterfly fauna of the Griffith district, a fragmented semi-arid landscape in inland southern New South Wales

2006 ◽  
Vol 12 (2) ◽  
pp. 140 ◽  
Author(s):  
Michael F. Braby ◽  
Ted D. Edwards
Keyword(s):  
Species Richness ◽  
Arid Zone ◽  
New South ◽  
New South Wales ◽  
Summer Rainfall ◽  
Wagga Wagga ◽  
Fragmented Landscape ◽  
South Wales ◽  
Butterfly Fauna ◽  
Semi Arid

Thirty-three species of butterflies are recorded from the Griffith district in the semi-arid zone of inland southern New South Wales. The butterfly community comprises the following structure: 19 species (58%) are resident; 7 (21 %) are regular immigrants; 2 (6%) are irregular immigrants; 5 (15%) are vagrants. Except for a few migratory species, most occur in relatively low abundance. Lack of similar studies elsewhere in western New South Wales precludes generalizations regarding the species richness, composition and structure of semi-arid butterfly communities. Comparison of the butterfly fauna with that from five other inland regions on the slopes and foothills of the Great Diving Range, revealed that the Griffith district is most similar in species richness and composition to that of Deniliquin and to a lesser extent Wagga Wagga and Cowra in the south, than with two regions in the higher summer rainfall area of the north of the State (Coonabarabran-Mendooran, Narrabri-Bellata). Overall, the butterfly fauna of inland New South Wales (total of 73 species, of which 49 occur in the southern regions) is depauperate compared with that recorded from the coastal/subcoastal areas east of the Great Dividing Range. Attention is drawn to the conservation significance of several vegetation types and habitat remnants in the Griffith district. Much of the native vegetation in the district has been extensively modified since European settlement due to excessive clearing for agriculture, resulting in a highly fragmented landscape for the conservation of native flora and fauna. With the exception of the lycaenid Candalides hyacinthinus Simplex, which is considered threatened locally, there is a general absence of narrow range endemic butterflies associated with mallee-heathland or mallee-woodland, possibly as a result of widespread land clearing practices of mallee vegetation in the past.

Recolonisation by rabbits (Oryctolagus cuniculus) after warren destruction in Western New South Wales.

1986 ◽  
Vol 8 (2) ◽  
pp. 150 ◽  
Author(s):  
I Parer ◽  
BS Parker
Keyword(s):  
Oryctolagus Cuniculus ◽  
New South ◽  
New South Wales ◽  
Low Level ◽  
South Wales

Warren destruction by ripping reduced the number of warrens on a property in western New South Wales to a very low level. After the cessation of ripping the number of warrens remained low for three years. In the following years rainfall was above average and during this period the number of warrens increased considerably.

Habitat Selection by Sex, Age and Reproductive Class in the Red Kangaroo, Macropus rufus, in Western New South Wales

1981 ◽  
Vol 8 (3) ◽  
pp. 465 ◽  
Author(s):  
CN Johnson ◽  
PG Bayliss
Keyword(s):  
Habitat Selection ◽  
National Park ◽  
Mating Systems ◽  
New South ◽  
New South Wales ◽  
Vegetation Types ◽  
Red Kangaroo ◽  
South Wales ◽  
Macropus Rufus ◽  
Lactating Females

The kangaroo populations of Kinchega National Park respond differently to shifts in pasture productivity, red kangaroos Macropus rufus being mobile and unevenly distributed with respect to soil and vegetation types, by comparison with the more evenly dispersed western grey kangaroos M. fuliginosus and the sedentary and localized euros M, robustus erubescens. Red kangaroo population classes tend to be differentially distributed, so that large males and heavily lactating females predominate on the seasonally preferred pastures, while other classes tend to predominate elsewhere. This finding has several implications for the management of red kangaroos and for our understanding of their resource ecology and mating systems.

The Demography of Feral Pigs (Sus Scrofa) in Kosciusko National Park, New South Wales.

1993 ◽  
Vol 20 (5) ◽  
pp. 559 ◽  
Author(s):  
G Saunders
Keyword(s):  
National Park ◽  
New South ◽  
Seasonal Pattern ◽  
New South Wales ◽  
Protein Food ◽  
Feral Pigs ◽  
South Wales ◽  
Postnatal Mortality ◽  
Alpine Population ◽  
Autumn And Winter

The demography of a sub-alpine population of feral pigs was examined at Kosciusko National Park in south-eastern New South Wales. Reproductive data and age structures indicated a seasonal pattern of breeding, most births occurring in summer and autumn. It is proposed that a decreasing availability of high protein food in the autumn and winter months caused reduced rates of conception. Sows produced 0.84 litters per year with postnatal mortality as high as 85%. The population appeared relatively stable at a density of 1.6 pigs kg-2. Hunting, although illegal in a national park, removed 4.4-15.4% of pigs each year. The overall health and body condition of pigs was good, with no evidence of heavy parasitic burdens or disease. Age-specific body weight and body length in this study were greater than those reported for pigs in semi-arid wester New South Wales.

The status of myxomatosis at Urana, New South Wales, from 1968 until 1971

1972 ◽  
Vol 20 (4) ◽  
pp. 391 ◽  
Author(s):  
RT Williams ◽  
I Parer
Keyword(s):  
New South ◽  
New South Wales ◽  
Great Majority ◽  
Latent Virus ◽  
Rabbit Population ◽  
South Wales ◽  
The Status

Epizootics of myxomatosis which occurred each year from 1968 until 1971 in a rabbit population inhabiting a 700-acre study site at Urana, N.S.W., were studied. Transmission was rapid in 1968 and 1969, Anopheles annulipes being the vector, and the peak of these epizootics occurred in early November. Transmission in 1970 was primarily by the flea Spilopsyllus cuniculi, and was slower, but the midpoint of the epizootic still occurred in early November. In 1971 the epizootic peaked in late December, transmission was rapid, and the vector was unknown. Each year, about 75% of the susceptible animals older than 3 months of age at the time of the epizootic contracted myxomatosis; of these, 60% recovered, and of the recoveries, 20% died between the time of recovery (early December) and 1 January. Fewer animals (16-55 %) under 3 months of age were seen with myxomatosis; of these, about 50% were seen to recover, and a large proportion (from 25 to 45%) of animals seen to recover died before 1 January each year. The great majority of animals not seen to contract myxomatosis probably died from other causes without being exposed to the disease. These data indicate that myxomatosis killed very few animals directly during these epizootics, and that other factors were responsible for the majority of deaths which occurred during the epizootic period. In 1968, 1969, and 1970, reactivation of latent virus in animals which had previously recovered from myxomatosis was probably the source of the virus which initiated the epizootics.

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