Seed Dispersal by Emus on the New South Wales North-east Coast

1999 ◽  
Vol 99 (4) ◽  
pp. 248-252 ◽  
Author(s):  
R.J. McGrath ◽  
D. Bass
1995 ◽  
Vol 43 (6) ◽  
pp. 601 ◽  
Author(s):  
G Mcdonald ◽  
TR New ◽  
RA Farrow

Surveys for juvenile Mythimna convecta throughout the agricultural and arid regions of eastern Australia were conducted from 1986 to 1989. Armyworm populations north of 33 degrees S were generally dominated by M. convecta, and further south by Persectania ewingii. M. convecta was most widely distributed in spring. Incidence during autumn and winter ranged from very low in Victoria to high in northern New South Wales and southern Queensland. Summer infestations were found mostly on the south-east coast where favourable habitats were abundant. Colonised habitats included extremely arid regions, where small numbers of larvae were associated with grasses in temporary watercourses, and the higher-rainfall, eastern regions. The largest infestations occurred in south-east Queensland and north central and north-east New South Wales, particularly after heavy autumn rains. There appeared to be two generations of M. convecta over the autumn/winter period: the first a synchronised event starting on the autumn rains and the second commencing in June/July and comprising a wide spread in age distribution. The progeny of the winter generation are probably the source of most economic outbreaks. Mythimna convecta larvae were collected from subtropical and temperate grasses. In the former, most larvae were found in tussocks, particularly of Dichanthium sericeum and Chloris truncata, which provided a dense, fine-leaf crown and canopy. After good autumn rainfall and vegetative growth, the wiry-stemmed tussocks, including Astrebla spp. and C. ciliaris, were also common hosts. The temperate grasses, particularly Avena fatua and Hordeum leporinum, were the main winter hosts although the greatest densities were found only in thick swards of growth, particularly those that contained dried grass. Two of the largest surveys, in autumn 1987 and 1988, followed periods of heavy rain and provided strongly contrasting results. The 1987 survey of central and south-west Queensland located no M. convecta larvae, indicating that densities were below detection thresholds. The paucity of larvae was attributed to lack of suitable atmospheric conditions to assist moth immigrations and absence of adequate populations in potential source areas. The 1988 survey revealed a major outbreak of M. convecta larvae in south-east Queensland and northern New South Wales. The area received record rains during early April of that year, and the outbreak probably arose from moth migrations from the east and south-east coast. An outbreak of similar scale occurred after further heavy autumn rains in 1989.


1994 ◽  
Vol 17 (1) ◽  
pp. 19
Author(s):  
J. Barker ◽  
D. Lunney ◽  
T. Bubela

Mammal surveys were carried out on the Carrai Plateau and Richmond Range in north-east New South Wales between March 1988 and November 1989. The emphasis was placed on rainforest mammals, following the recognition by Adam ( 1987) that the species lists of mammals in the state's rainforests were incomplete and that more research was needed. The mammals were surveyed primarily by analysis of prey remains in Dog and Fox scats, collected from roads throughout the forests, and from bat trapping. The bat fauna at both the Carrai Plateau and Richmond Range is rich (1 0 species and nine species respectively, including the rare Golden-tipped Bat, Kerivoula papuensis, in the Richmond Range). Scat analysis revealed the presence of 24 native species on the Carrai Plateau, and on the Richmond Range there were 17 species, including high numbers of two pademelon species. Feral prey species are almost completely absent, although the Fox is an established predator in both areas. A sharp division was identified between the mammal faunas of closed and open forests. Differences were found also between the mammal fauna composition of the two rainforest sites, and with those of nearby eucalypt forests. The mammal fauna of New South Wales rainforests is distinct from open forests and future mammal surveys are needed to ensure an adequate level of knowledge to identify and conserve these areas.


2021 ◽  
Vol 3 (2) ◽  
pp. 26-28
Author(s):  
Victor Chiruta ◽  
Robert Renshaw

In the State of New South Wales (NSW), Australia, the prosecution in criminal proceedings is seeking deterrence punishment for offenders manufacturing 3,4-methylenedioxyamphetamine (MDA) from the precursor helional via the ‘Two Dogs’ method (TDM). The reason given by the prosecution is a presumption that the TDM does not use any unrestricted chemicals in the synthesis of MDA. A comprehensive literature search was conducted. The relevant law was searched to fact-check the assertion of the prosecution. It was found that the prosecution was incorrect. Intermediate precursors of the TDM are restricted in NSW. However, the starting precursor helional remains unscheduled in NSW, yet helional is scheduled in some other Australian States. The prosecution’s position may play a significant factor in the sentencing proceedings of offenders. Therefore, as a matter of urgency, the prosecution must review and update its position and its submissions, keeping with the factual position in relation to the legal provisions of precursors used in the TDM.


1980 ◽  
Vol 28 (3) ◽  
pp. 475 ◽  
Author(s):  
PS Ward

The Rhytidoponera impressa group is revised on the basis of worker ant morphology, supplemented by information from ecological and genetic studies. Five species are recognized, all of which occur in mesic habitats along the east coast of Australia: chalybaea Emery (New South Wales, southern Queensland), confusa, sp. nov. (Victoria, New South Wales, southern Queensland) enigmatica sp. nov. (Sydney region, N.S.W.),impressa Mayr (Queensland) and purpurea Emery (north Queensland, New Guinea). R. purpurea is the most distinct morphologically. Of the remaining species, chalybaea and confusa are exceedingly similar and in some localities can be unequivocably distinguished only on the basis of electrophoretic (allozyme) differences. Biogeographical relationships of the impressa group are discussed in relation to past climatic and vegetational changes.


2021 ◽  
Author(s):  
Christopher Dowling ◽  
Anthony Morgan

The criminal mobility of outlaw motorcycle gang (OMCG) members presents a significant challenge to Australian governments and police. Examining patterns of mobility can help to better understand the opportunity structures that underpin offending by OMCGs and to drive national collaborative responses to these gangs. This study examines the prevalence and patterns of criminal mobility in a sample of almost 4,000 OMCG members in more than 400 chapters. Around one in 10 members showed evidence of criminal mobility over the long term, while more than one-third of chapters comprised criminally mobile members. Criminally mobile gang members were heavily concentrated in a small number of chapters. Patterns of criminal mobility primarily involve movements into east coast jurisdictions. New South Wales and Queensland emerged as the most common destinations for criminally mobile OMCG members.


1970 ◽  
Vol 2 (2) ◽  
pp. 66-67
Author(s):  
Virginia Macleod

Warriewood is on Sydney's northern beaches, between Mona Vale and North Narrabeen, in the Pittwater local government area.This was once a 'wet' part of the coast. Lagoons and swamps were typical of the northern beaches and east coast of New South Wales. Narrabeen Creek flows through the middle of Warriewood, and Mullet Creek marks its southern boundary. Early nineteenth-century maps mark most of the land between the south-east corner of Pittwater across to Mona Vale Beach and south, including Warriewood Valley, as swamp. The local Guringai Aboriginal people would have found these swamps rich in food supplies – fish, birds, plants and naturally fresh water.


1996 ◽  
Vol 47 (2) ◽  
pp. 331 ◽  
Author(s):  
AG Miskiewicz ◽  
BD Bruce ◽  
P Dixon

The distribution of tailor (Pomatomus saltatrix) larvae is described on the basis of the results of four plankton surveys undertaken in northern and central New South Wales (NSW) coastal waters. These comprised a single survey during May 1989 along the northern NSW coast and multiple surveys in January, March and May 1983 between Sydney and Brisbane. Pomatomus saltatrix larvae occurred throughout the survey period, with the highest abundances on the northern NSW coast. Most larvae were caught in mid and outer continental shelf waters at water temperatures of ≥22�C. The only known spawning locality for P. saltatrix is in the vicinity of Fraser Island in southern Queensland from August to October. The occurrence of larvae along the NSW coast from January to May indicates that the spawning season of P. saltatrix is more extensive than previously reported and that spawning occurs along the east coast of Australia in localities other than Fraser Island. Further surveys of larvae in southern Queensland and northern NSW waters, especially from August to December, are required to determine if P. saltatrix has one extended or two discrete spawning seasons along the eastern coast of Australia.


1989 ◽  
Vol 11 (2) ◽  
pp. 61 ◽  
Author(s):  
PJS Fleming ◽  
TJ Korn

A monthly survey involving officers from eastern New South Wales Pastures Protection Boards was conducted over four years from 1982 to 1985. Information was collected on the number and type of livestock attacked within each board district, sightings of wild dogs, the number of wild dogs kiied, the method by which they were kiied and the locations at which the observations occurred. A total of 25,644 livestock animals were reported killed or wounded from four regions; the North-East Coastal Region, the North-East Tablelands Region, the Central-East Region and South-East Region. Sheep were the most commonly attacked domestic animals followed by cattle and goats. Regional differences were apparent in the type of livestock killed and seasonal patterns of predation were evident. We recommend that annual control programmes be brought forward from June/July to late April in order to precede predation peaks.


Zootaxa ◽  
2009 ◽  
Vol 2048 (1) ◽  
pp. 1-30 ◽  
Author(s):  
LARS HENDRICH ◽  
CHRIS H. S. WATTS

The present paper treats with the enigmatic Australian predaceous water beetle genus Carabhydrus Watts, 1978 (Dytiscidae, Hydroporinae, Hydroporini) which—except C. stephanieae Watts, Hancock & Leys, 2007—is distributed in forest streams and rivers along the Great Dividing Range of the East Coast and the mountain ranges of SE Australia and Tasmania. The largest species of the genus, Carabhydrus innae sp.n. from southern Victoria and New South Wales, and the smallest, C. storeyi sp.n. from north-eastern Queensland, C. janmillerae sp.n. from south-eastern and C. turaki sp.n. from north-eastern New South Wales are described as new. All species, except C. mubboonus Larson & Storey, 1994, C. niger Watts, 1978 and C. andreas Zwick, 1981, are very rarely collected and mainly known from a few specimens from their type localities. The adults of most species can be found under pebbles and stones and among roots at the edge of running waters, only C. stephanieae has been described from ground water. A key to the ten described species of Carabhydrus is presented, and their distribution and habitats are briefly illustrated.


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