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1
Gasser, Robin B., Michael P. Reichel, and Roger A. Lyford. "Hyperendemic focus of echinococcosis in north‐eastern Victoria." Medical Journal of Australia 160, no. 8 (April 1994): 499–501. http://dx.doi.org/10.5694/j.1326-5377.1994.tb138315.x.
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Plusquellec, Yves. "First record of the tabulate coral "Ligulodictyum" in the early Emsian of Victoria (Australia), with additional data on Australian Ligulodictyum sensu lato." Proceedings of the Royal Society of Victoria 127, no. 2 (2015): 17. http://dx.doi.org/10.1071/rs15015.
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Well-preserved specimens of “Ligulodictyum” belonging to the mauretanicum lineage are described from the lower part of the Taravale Formation, of early Emsian age, Buchan area, eastern Victoria (Australia). A short review of the stratigraphic distribution of Ligulodictyum sensu lato (Ligulodictyum s.l. megastoma and undescribed new species) in central and eastern Victoria is presented. The new data show the presence of the mauretanicum lineage in Victoria, emphasising the relationships between the Tasman Subprovince and the north-western part of the Gondwana (Ibarmaghian Domain).
3
Burnett, V. F., D. R. Coventry, J. R. Hirth, and F. C. Greenhalgh. "Subterranean clover decline in permanent pastures in north-eastern Victoria." Plant and Soil 164, no. 2 (July 1994): 231–41. http://dx.doi.org/10.1007/bf00010075.
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Gardner, WK, RG Fawcett, GR Steed, JE Pratley, DM Whitfield, Hvan Rees, and Rees H. Van. "Crop production on duplex soils in south-eastern Australia." Australian Journal of Experimental Agriculture 32, no. 7 (1992): 915. http://dx.doi.org/10.1071/ea9920915.
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The environment, duplex soil types and trends in crop production in South Australia, southern New South Wales, north-eastern and north-central Victoria, the southern Wimmera and the Victorian Western District are reviewed. In the latter 2 regions, pastoral industries dominate and crop production is curtailed by regular and severe soil waterlogging, except for limited areas of lower rainfall. Subsurface drainage can eliminate waterlogging, but is feasible only for the Western District where subsoils are sufficiently stable. The other regions all have a long history of soil degradation due to cropping practices, but these effects can now be minimised with the use of direct drilling and stubble retention cropping methods. A vigorous pasture ley phase is still considered necessary to maintain nitrogen levels and to restore soil structure to adequate levels for sustainable farming. Future productivity improvements will require increased root growth in the subsoils. Deep ripping, 'slotting' of gypsum, and crop species capable of opening up subsoils are techniques which may hold promise in this regard. The inclusion of lucerne, a perennial species, in annual pastures and intercropping at intervals is a technique being pioneered in north-central and western Victoria and may provide the best opportunity to crop duplex soils successfully without associated land degradation.
5
Bruce, Barry D., Scott A. Condie, and Caroline A. Sutton. "Larval distribution of blue grenadier (Macruronus novaezelandiae Hector) in south-eastern Australia: further evidence for a second spawning area." Marine and Freshwater Research 52, no. 4 (2001): 603. http://dx.doi.org/10.1071/mf99171.
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Small numbers of blue grenadier, Macruronus novaezelandiae, larvae were found in coastal waters off eastern Victoria and southern New South Wales in August 1993. This is the first record of larval blue grenadier from mainland Australian waters. It is considerably further north than previous records of larvae and remote from the single known spawning ground off western Tasmania. Larvae were aged between 17 and 36 days and were largely confined to an inshore northward flowing water mass. Back calculated spawning dates indicated that larvae from eastern Victoria/southern NSW were spawned earlier than larvae collected during the same period off western and southern Tasmania. Otolith increment widths were significantly wider in larvae caught in eastern Victoria/southern NSW suggesting that they experienced faster growth and development conditions than the Tasmanian larvae. Three-dimensional modelling of circulation and particle advection suggested that the source of eastern Victoria/southern NSW larvae was most likely eastern Bass Strait. These data suggest that there is a second, albeit limited, spawning area for blue grenadier in south-eastern Australia.
6
Lyne, AM, and MD Crisp. "Leptospermum jingera (Myrtaceae–Leptospermoideae): a new species from north-eastern Victoria." Australian Systematic Botany 9, no. 3 (1996): 301. http://dx.doi.org/10.1071/sb9960301.
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Leptospennurn jingera, a new species from the Brumby Point area of the snowfields natural region of north-eastern Victoria, is described and illustrated. It is a highly restricted endemic most closely related to L. nainadgiensis Lyne.
7
Nabirye, Minah, Gilles-Maurice de Schryver, and Jo Verhoeven. "Lusoga (Lutenga)." Journal of the International Phonetic Association 46, no. 2 (January 20, 2016): 219–28. http://dx.doi.org/10.1017/s0025100315000249.
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Lusoga is an interlacustrine Bantu language spoken in the eastern part of Uganda in the region of Busoga, which is surrounded by the Victoria Nile in the west, Lake Kyoga in the north, the River Mpologoma in the east and Lake Victoria in the south. According to the 2002 census, this language is spoken by slightly over two million people (UBOS 2006: 12).
8
Kenney, PA, and GB Roberts. "Productivity of ewes grazing lupin stubbles at mating in north-eastern Victoria." Australian Journal of Experimental Agriculture 27, no. 5 (1987): 619. http://dx.doi.org/10.1071/ea9870619.
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The liveweight gains, lambing performances and wool production of Border Leicester x Merino ewes grazed on sweet narrow-leafed lupin (Lupinus angustifolius) stubbles during mating in midsummer were compared with those grazed on annual pasture. Treatments and conditions varied during the 5 years of study. In years 1-3, the stubbles were stocked at rates of between 20 and 40/ha, in year 4, at 11 ewes/ha, and in year 5 at 24 ewes/ha. In the last year there was an additional pasture treatment when the ewes on dry pasture were divided, one half were given 400 g lupin grain/sheep daily and the remainder, none. Available dry matter on the pastures varied from 1.1 to 5.0 t/ha and lupin grain in the stubbles varied from 230 to 420 kg/ha. Vasectomised rams were joined with the ewes 1 week before they were put onto the lupin stubbles and, after 2 weeks, were exchanged for entire rams which remained with ewes for 17-33 days. As the stocking rates on stubbles increased there were decreases in liveweight gains, ewes lambing and lambs born per ewe joined. During the 5 years, ewes grazed on stubbles at less than 25/ha gained more weight (176 g/day more), had more lambs (0<26/ewe mated), while more of them lambed (0.07/ewe mated) than did ewes on pasture alone (P < 0.05). The ewes fed lupin grain at pasture in year 5 received less grain than those on the stubbles and their production was intermediate to those on pasture alone and stubbles. At the lowest stocking rate of ewes grazing stubbles (20/ha) average wool production increased by about 37% (years 2-3) and 58% (year 5) compared with ewes grazing pasture. We conclude that lambing percentages from a midsummer mating can be increased when crossbred ewes graze sweet lupin stubbles during mating.
9
Coventry, DR, TG Reeves, HD Brooke, A. Ellington, and WJ Slattery. "Increasing wheat yields in north-eastern Victoria by liming and deep ripping." Australian Journal of Experimental Agriculture 27, no. 5 (1987): 679. http://dx.doi.org/10.1071/ea9870679.
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Wheat grain yields, dry matter production and yield components were measured in a field experiment in north-eastern Victoria over 5 seasons where lime application and deep ripping had been carried out. The soil at the site was strongly acid (pHw 5.2 at 0-1 0 cm) and had a dense hardpan at 7.5- 17.5 cm depth. Grain yields (control yields 1981-85: 1.34, 0.25, 1.64, 2.36, 2.09 t ha-1) were increased each year by both lime (31-103% range) and deep ripping (11- 41% range), but the application of some lime was necessary to obtain benefit from deep ripping. The increased grain yield was mainly due to more heads per metre of row, although head size and grain weight were also increased by lime treatment. Lime increased the dry matter yield of roots and decreased the top to root dry matter ratio. Deep ripping increased the dry matter yield of roots at depth and also reduced root distortion where the hardpan had been shattered. In a drought season, deep ripping increased grain weight. Root disease was accentuated at the higher rates of lime.
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Giles, Robyn L., Andrew N. Drinnan, and Neville G. Walsh. "Variation in Phebalium glandulosum subsp. glandulosum: morphometric and anatomical evidence (Rutaceae)." Australian Systematic Botany 21, no. 4 (2008): 271. http://dx.doi.org/10.1071/sb07023.
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Specimens of Phebalium glandulosum Hook. subsp. glandulosum representing the entire geographic range of the subspecies were examined for morphological and anatomical variation. Phenetic patterns were identified with the pattern analysis package PATN, and three distinct groups were identified. One group consists of plants from inland areas of New South Wales, north-western Victoria, and the Yorke and Eyre Peninsulas of South Australia; a second group consists of plants collected from alongside the Snowy River in eastern Victoria and south-eastern New South Wales; and a third group consists of plants from Queensland and northern New South Wales. The climate analysis program BIOCLIM was used to compare climate variables across the geographic range, and showed clear climatic separation in support of the phenetic analysis. The three groups are formally recognised here as distinct subspecies. Plants from Queensland and the Bourke region of northern New South Wales belong to the typical subspecies; plants from north-western Victoria, central New South Wales, and the Yorke and Eyre Peninsulas of South Australia form a cohesive assemblage and are recognised as a new subspecies P. glandulosum subsp. macrocalyx; and plants from the Snowy River in far eastern Victoria and the Southern Tablelands of New South Wales form a distinct and isolated group recognised as a new subspecies P. glandulosum subsp. riparium. These new subspecies are formally described, and an identification key and summaries distinguishing all six subspecies of P. glandulosum are presented.
11
Pritchard, F. M., H. A. Eagles, R. M. Norton, P. A. Salisbury, and M. Nicolas. "Environmental effects on seed composition of Victorian canola." Australian Journal of Experimental Agriculture 40, no. 5 (2000): 679. http://dx.doi.org/10.1071/ea99146.
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Data from advanced breeding experiments between 1985 and 1994 were used to determine the effects of region, year and environment on the quality of canola grown across Victoria. Estimates from these unbalanced data were made using residual maximum likelihood. Environmental effects were large relative to cultivar effects for oil and protein content, while the reverse occurred for glucosinolate content. High oil contents (and low seed protein contents) were correlated with cooler spring temperatures and higher spring rainfall. Oil contents were lowest, on average, in canola grown in dry years, or from the hotter regions, such as the Mallee, and were highest in canola from the cooler, wetter regions, such as south-western and north-eastern Victoria. Fatty acid composition varied with year and region. Means for saturated fatty acid content averaged 6.4 0.1%. The oleic acid content averaged 60.3 0.4% and was higher in canola grown in central Victoria and the Wimmera, and in most years, in north-eastern Victoria compared with other regions. Low temperatures and low rainfall reduced oleic acid content. Linoleic acid content averaged 19.7 0.3% and linolenic acid averaged 10.4 0.3%, with the content of these fatty acids negatively correlated with the content of oleic acid. Erucic acid levels were below 0.6% in all regions.
12
Aves, Charlotte, John Broster, Leslie Weston, Gurjeet S. Gill, and Christopher Preston. "Conyza bonariensis (flax-leaf fleabane) resistant to both glyphosate and ALS inhibiting herbicides innorth-eastern Victoria." Crop and Pasture Science 71, no. 9 (2020): 864. http://dx.doi.org/10.1071/cp19537.
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Conyza bonariensis (L.) Cronq. (syn. of Erigeron bonariensis L.) is a difficult-to-control summer weed species in the cropping belt of south-eastern Australia. Herbicide resistance may be affecting the ability to control C. bonariensis in the agricultural region of north-eastern Victoria; therefore, a survey was conducted to evaluate resistance to herbicides from several mode-of-action groups. Of the populations collected, 40% were resistant to glyphosate at 1080 g ha–1. Chlorsulfuron failed to control any of the populations collected. Further research identified multiple herbicide resistance to glyphosate, chlorsulfuron, metsulfuron-methyl and sulfometuron-methyl in five of nine populations fully characterised. Resistance was not found to 2,4-D, clopyralid or paraquat. There was no correlation between prevailing land use and the frequency of glyphosate-resistant populations, suggesting that resistance had been selected in multiple production systems. The high frequency of resistance could explain the difficulty experienced in controlling C. bonariensis across north-eastern Victoria and demonstrates the importance of integrated weed management to manage this weed.
13
Eagle, Ryan M., William D. Birch, and Stafford McKnight. "Phosphate minerals in granitic pegmatites from the Mount Wills District, north-eastern Victoria." Proceedings of the Royal Society of Victoria 127, no. 2 (2015): 55. http://dx.doi.org/10.1071/rs15018.
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Tin- and tantalum-bearing LCT-type granitic pegmatites occur in a 45 km long belt between Eskdale and Mount Wills in north-eastern Victoria. Near Mount Wills, several compositionally zoned rare-element pegmatites contain complex assemblages of primary and secondary phosphate minerals, many of which are rare and previously unrecorded in Victoria. The phosphate assemblages can be divided into Al-rich and Fe–Mn-rich suites, in addition to ubiquitous fluorapatite. The Al-rich phosphate suite includes montebrasite, scorzalite, bertossaite and brazilianite. The Fe‒Mn phosphate suite includes heterosite, phosphoferrite, wolfeite, alluaudite (sp.), arrojadite (sp.) and jahnsite (sp.), derived from the metasomatic alteration of primary triplite. Further hydrothermal alteration of this assemblage has resulted in a secondary suite of strengite, rockbridgeite, phosphosiderite, whiteite, jahnsite and whitmoreite forming in etch cavities and fractures. A Late Silurian age of 420±4 Ma was obtained from one of the dykes via CHIME radiometric dating of monazite, suggesting a similar age for the adjacent Mount Wills Granite, which has not been reliably dated. This highly fractionated, peraluminous granite is presumed to be the source of the rare-element pegmatites based on their close spatial relationship.
14
Ridley, AM, KR Helyar, and WJ Slattery. "Soil acidification under subterranean clover (Trifolium subterraneum L.) pastures in north-eastern Victoria." Australian Journal of Experimental Agriculture 30, no. 2 (1990): 195. http://dx.doi.org/10.1071/ea9900195.
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Eleven paired soil samples to 60 cm depth were collected from grazing properties in north-eastern Victoria. Soils were naturally acid and most were red or yellow podsolics. At each site unfertilised soils (unimproved) and soils which had received regular superphosphate applications (improved) were sampled from either side of a fenceline. The percentage of organic carbon was higher on improved sites but pH was usually lower. Using pH and pH buffering capacity data, the rate of soil acidification under improved pasture, relative to unimproved pasture, was estimated. The improved pastures, on average, required 39 kg CaCO3ka.year to balance the net acid accumulated. The estimated rates of acidification are much lower than those reported previously for similar environments and soil types in New South Wales. There was a relationship between initial profile pH and net acid addition, lower measured net acid addition being associated with low initial soil pH. This paper demonstrates the need for both standardisation of soil pH buffer capacity measurements, and more direct assessment of the role of soil mineral dissolution processes in buffering the pH of strongly acid soils. Until such data exists it will be very difficult to provide convincing information to primary producers regarding the long term alkali input requirements needed for sustainable farming systems.
15
Bennett, AF, LF Lumsden, JSA Alexander, PE Duncan, PG Johnson, P. Robertson, and CE Silveira. "Habitat Use by Arboreal Mammals along an Environment Gradient in North-eastern Victoria." Wildlife Research 18, no. 2 (1991): 125. http://dx.doi.org/10.1071/wr9910125.
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A total of 1487 observations of nine species of arboreal mammal, Acrobates pygmaeus, Phascolarctos cinereus, Petauroides volans, Petaurus australis, P. breviceps, P. norfolcensis, Pseudocheirusperegrinus, Trichosurus caninus and T. vulpecula, were made during surveys of the vertebrate fauna of northeastern Victoria. Habitat use by each species was examined in relation to eight forest types that occur along an environmental gradient ranging from sites at high elevation with a high annual rainfall, to sites on the dry inland and riverine plains. Arboreal mammals were not evenly distributed between forest types. Three species (P. australis, P. volans and T. caninus) were mainly associated with moist tall forests; two species (P. norfolcensis and T. vulpecula) were primarily associated with drier forests and woodlands of the foothills; the remaining three species (A. pygmaeus, P. breviceps and P. peregrinus) occurred widely throughout the forests. The composition of the arboreal mammal assemblage changed along the environmental gradient, but species displayed gradual changes in abundance with forest type rather than marked discontinuities in distributional pattern. The highest overall frequencies of occurrence of arboreal mammals were in forests typically dominated by a mixture of eucalypt species. The position at first sighting of an animal, and the relative height in the forest stratum, were used to describe the micro-habitats utilised. In general, the microhabitats occupied by each species are consistent with the distribution of their known food resources.
16
Andrew, M. H., and G. M. Lodge. "The Sustainable Grazing Systems National Experiment. 1. Introduction and methods." Australian Journal of Experimental Agriculture 43, no. 8 (2003): 695. http://dx.doi.org/10.1071/ea02183.
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This paper outlines the development and design of the Sustainable Grazing Systems (SGS) National Experiment from the initial call for expressions of interest, through several workshop processes to the final selection and implementation of its 6 component sites, and the general methodology used at each. Sites were located in Western Australia, western Victoria, north-east Victoria, and on the Central Tablelands, North West Slopes, and the eastern Riverina of New South Wales. Sites in Western Australia, north-east Victoria, the North West Slopes, and the eastern Riverina also had subsites. Methods for the sites and subsites (data collection for pastures, livestock, weather, soils and site characterisation) are presented to provide a central reference, and to save duplication in subsequent papers. Descriptions are provided of the location, average annual rainfall, major pasture, soil and stock types, design and number of treatments, and initial soil levels (0–10 cm) of phosphorus, electrical conductivity, and pH for sites and subsites. Also outlined is the major focus of the research undertaken at each site. While sites studied regionally relevant issues, they operated under a common protocol for data collection with a minimum data set being specified for each of 5 unifying themes: pastures, animal production, water, nutrients, and biodiversity. Economic analyses were also undertaken at the macro- and micro-level, and a procedural tool developed for appraising the on- and off-farm impacts of different systems. To give effect to the themes, common database and modelling tools were developed specifically for the national experiment, so that collectively sites comprised a single experiment.
17
Eagle, Ryan M., William D. Birch, and Stafford McKnight. "Corrigendum to: Phosphate minerals in granitic pegmatites from the Mount Wills District, north-eastern Victoria." Proceedings of the Royal Society of Victoria 129, no. 1 (2017): 53. http://dx.doi.org/10.1071/rs15018_co.
Full textAbstract:
Tin- and tantalum-bearing LCT-type granitic pegmatites occur in a 45 km long belt between Eskdale and Mount Wills in north-eastern Victoria. Near Mount Wills, several compositionally zoned rare-element pegmatites contain complex assemblages of primary and secondary phosphate minerals, many of which are rare and previously unrecorded in Victoria. The phosphate assemblages can be divided into Al-rich and Fe–Mn-rich suites, in addition to ubiquitous fluorapatite. The Al-rich phosphate suite includes montebrasite, scorzalite, bertossaite and brazilianite. The Fe‒Mn phosphate suite includes heterosite, phosphoferrite, wolfeite, alluaudite (sp.), arrojadite (sp.) and jahnsite (sp.), derived from the metasomatic alteration of primary triplite. Further hydrothermal alteration of this assemblage has resulted in a secondary suite of strengite, rockbridgeite, phosphosiderite, whiteite, jahnsite and whitmoreite forming in etch cavities and fractures. A Late Silurian age of 420±4 Ma was obtained from one of the dykes via CHIME radiometric dating of monazite, suggesting a similar age for the adjacent Mount Wills Granite, which has not been reliably dated. This highly fractionated, peraluminous granite is presumed to be the source of the rare-element pegmatites based on their close spatial relationship.
18
Colgan, D. J. "Marine and estuarine phylogeography of the coasts of south-eastern Australia." Marine and Freshwater Research 67, no. 11 (2016): 1597. http://dx.doi.org/10.1071/mf15106.
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Understanding a region’s phylogeography is essential for an evolutionary perspective on its biological conservation. This review examines the phylogeographic structures in south-eastern Australia that have been revealed by mitochondrial DNA sequencing and other genetic techniques and examines whether they can be explained by known factors. The review covers species that occur in the intertidal zone or, even infrequently, in the shallow subtidal zone. The coasts most frequently associated with phylogeographic structure are the boundaries between the Peronian and Maugean biogeographical provinces in southern New South Wales and the Maugean and Flindersian provinces in South Australia, the areas in Victoria and north-eastern Tasmania separated by the Bassian Isthmus at glacial maxima, long sandy stretches without rocky intertidal habitat on the Ninety Mile Beach in Victoria and the Younghusband Peninsula–Coorong in South Australia, southern Tasmania and Bass Strait, which acts as a barrier for littoral species.
19
Buchanan, GA. "The distribution of grape phylloxera, Daktulosphaira vitifolii (Fitch), in central and north-eastern Victoria." Australian Journal of Experimental Agriculture 27, no. 4 (1987): 591. http://dx.doi.org/10.1071/ea9870591.
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All known vineyards in the North Central and Geelonq Vine Disease Districts of Victoria were systematically surveyed for grape phylloxera, Daktulosphaira vztlfoliz (Fitch) (Hemiptera, Phylloxeridae). Forty-one of the 28 1 vineyards surveyed were found to be infested. The infested vineyards were located near Nagambie, Ardmona, Glenrowan, Milawa and Rutherglen. There were significant relationships ( �2 , Plt; 0.001) between the infestation of vineyards and the age of the grapevines, the source of planting material, and the use of rootstocks. There was no apparent relationship between phylloxera infestation and soil type. Comparison with a previous survey reported in 1902 indicates a reduction in the number (from 69 to 41), but an increase in the area (from 275 to 653 ha) of infested vineyards. Differences in the distribution of phylloxera were small. There was evidence of spread of phylloxera within districts already infested, but only the Glenrowan- Milawa district contained infestations not previously recorded. Some previously infested areas were found to be free of phylloxera, owing to changing land use. The survey provided a basis for redefining quarantine areas according to the current distribution of grape phylloxera.
20
Ridley, AM, and DR Coventry. "Yield responses to lime of phalaris, cocksfoot, and annual pastures in north-eastern Victoria." Australian Journal of Experimental Agriculture 32, no. 8 (1992): 1061. http://dx.doi.org/10.1071/ea9921061.
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Yield responses of 3 mixed grass-clover pastures [Phalaris aquatica L. cv. Sirosa (phalaris), Dactylis glomerata cv. Porto (cocksfoot), and annual grass based Trifolium subterraneum L. cv. Trikkala (subterranean clover) pastures] were measured over 5 soil pH treatments at 2 sites in Victoria. One site (Beechworth) was strongly acidic [pH(CaCl2) < 4.21 to a depth of 40 cm and contained high concentrations of soil aluminium (Al). At the other site (Lake Rowan), yield responses to lime application had been measured previously, but only in Al-sensitive wheat cultivars. At Beechworth, pasture yield responses to lime were not consistent but. when observed. occurred in autumn and winter in all 3 pasture types. Phalaris pastures showed yield increases more often than cocksfoot and annual pastures. Low magnesium and calcium concentrations may have limited dry matter production, although yields were reasonable on all treatments. Where lime was applied, growth responses may have been due to alleviation of Al toxicity. At Beechworth, pasture yield was increased where lime increased pH from 4.2 to 4.6 and decreased soil Al (measured in 10 mmol CaCl2/L) from 11 to <3 �g/g soil. Herbage manganese concentrations were not high in phalaris and subterranean clover, and cocksfoot manganese standards were not available. At Lake Rowan (pH 4.7, Al <1 �g/g), no growth responses to lime were seen in any pasture treatment, and annual grass based pastures sometimes had higher yields than phalaris and cocksfoot pastures. On strongly acidic soils such as at Beechworth, incorporation of lime prior to pasture establishment should be considered. Perennial grasses may reduce further soil degradation through acidification. Soil A1 concentrations are commonly lower in ley-cropping areas, and the inclusion of perennial grasses in ley pastures requires further evaluation.
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Ridley, AM, and SM Windsor. "Persistence and tolerance to soil acidity of phalaris and cocksfoot in north-eastern Victoria." Australian Journal of Experimental Agriculture 32, no. 8 (1992): 1069. http://dx.doi.org/10.1071/ea9921069.
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Persistence of Phalaris aquatica L. cv. Sirosa (phalaris) and Dactylis glomerata cv. Porto (cocksfoot) was evaluated for 5 pH treatments at 2 field sites on acidic soils. At one site (Beechworth) the soil was strongly acidic [pH(CaCl2) 14.21 to depth (80 cm) and contained concentrations of CaCl2-extractable aluminium (Al) >11 �g/g. At the other site (Lake Rowan) the soil pH (0-10 cm) was 5.0 and A1 concentrations were 4 �g/g. At Beechworth, lime incorporated at 5.5 t/ha improved establishment of phalaris but plant density declined, and by 30 months after sowing, phalaris plant densities were similar to treatments receiving no lime. Establishment of cocksfoot was less affected by lime application than phalaris, and plant densities were similar to those of phalaris by 26 months after sowing. However, there were no differences between pasture species where no lime was applied. Considerable re-establishment of cocksfoot seedlings occurred regardless of soil treatment. Despite the reported relative sensitivity of phalaris to Al in solution culture experiments, at Beechworth phalaris had more root development at depth than cocksfoot or annual pasture. Although concentrations of Al in the subsoil were high, the perennial deep root system of phalaris may give it an advantage over cocksfoot in terms of survival over summer. A larger root system at depth may give phalaris greater potential than cocksfoot for reducing nitrate leaching and soil acidification. On less acidic soils at the Lake Rowan site, lime application did not affect establishment of either phalaris or cocksfoot. Phalaris had greater persistence than cocksfoot at Lake Rowan. Dry summer conditions at Lake Rowan were the likely cause of poor persistence of cocksfoot. More drought-tolerant cocksfoot cultivars are required if this species is to be a useful perennial grass for pastures in ley cropping areas of Victoria and southern New South Wales.
22
Slattery, WJ, and GR Ronnfeldt. "Seasonal variation of pH, aluminium, and manganese in acid soils from north-eastern Victoria." Australian Journal of Experimental Agriculture 32, no. 8 (1992): 1105. http://dx.doi.org/10.1071/ea9921105.
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Seasonal variation in pH (measured in H2O or 0.01 mol CaCl2/L) and in Al and Mn extracted by 0.01 mol CaCl2/L are reported for north-eastern Victoria. Seasonal variation in pH(H2O) was significantly (P<0.05) greater than either the spatial variation or laboratory error. There was no significant (P<0.05) seasonal variation in pH(CaCl2). For pH (H2O), values were observed to increase after the autumn break, to peak at or near midwinter, and to decrease slowly over the spring and summer months to lowest values in late summer. Seasonal changes for pH(H2O) were significantly (P<0.05) related to the ionic strength of the 1 : 5 soil : water extract. Significant seasonal variations (P<0.05) occurred for extractable Al and Mn in a podsolised red earth and a red podsolic. Seasonal effects were a significant (P<0.05) source of variation for the methods used in this study and should, therefore, be considered in any comparative or predictive studies using these methods.
23
Slattery, W. J., D. G. Edwards, L. C. Bell, D. R. Coventry, and K. R. Helyar. "Soil acidification and the carbon cycle in a cropping soil of north-eastern Victoria." Soil Research 36, no. 2 (1998): 273. http://dx.doi.org/10.1071/s96095.
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Changes in soil organic matter were determined for a long-term (1975–95) experiment at the Rutherglen Research Institute in north-eastern Victoria. The crop rotations in this experiment were continuous lupins (LL) and continuous wheat (WW). The soil at this site was a solodic or Yellow Dermosol with a soil pH of 6·08 (pH in 0·01 М CaCl2 1 : 5) in 1975 in the surface 10 cm, which had declined by 0·8 and 1·5 pH units for WW and LL, respectively, in the 0–20 cm soil zone by 1992. Acidification rates decreased with increasing soil depth. The acidification rate in the 0–60 cm soil zone was 12·5 kmol(H+)/ha·year for the LL rotation and 4·6 kmol(H+)/ha·year for the WW rotation. The amount of CaCO3 required to neutralise the acidification of wheat-lupin rotations as calculated in this paper was up to 3·8 t/ha ·10 years for a WLWL rotation or 3 ·3 t/ha ·10 years for a WWL rotation; these amounts are significantly higher than previously reported rates. In this paper, we calculate the impact of changes in soil carbon (C) status over time, and therefore soil buffering, on the rates of acidification in incremental soil layers to a depth of 60 cm. Total organic C for these rotations in 1992 was 1·12% for WW and 1·17% for LL in the 0–10 cm soil zone. An investigation of the humic and fulvic acid fractions of these 2 rotations to a depth of 60 cm showed that the LL rotation had significantly higher (P < 0·05) C at depth than the WW rotation. Acidification due to the net decrease in soil C over the 15-year study period plus acidification due to the alkali removed in the seed was calculated to be –4·88 kmol(H+)/ha·year for the LL rotation and –6·52 kmol(H+)/ha·year for the WW rotation.
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Bartolome, Marisa, Neville G. Walsh, Elizabeth A. James, and Pauline Y. Ladiges. "A new rare species of Acacia from north-east Victoria." Australian Systematic Botany 15, no. 4 (2002): 465. http://dx.doi.org/10.1071/sb01033.
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A new, rare wattle, Acacia daviesii sp. nov., known from only 10 populations discovered in mountainous, subalpine habitat in north-eastern Victoria, is described and illustrated. A comparative morphological study was undertaken, based on phyllode characters measured from all 10 known populations and herbarium specimens of the five most similar Acacia species: A. acinacea, A. aspera, A. glandulicarpa, A. gunnii and A. paradoxa. The new species has a pendulous habit and resinous phyllodes covered by stalked multicellular glands. Acacia daviesii forms clones by root suckering and seed set appears to be rare. Isozyme analysis based on nine enzyme systems showed that plants within any single population are genetically identical. Variation was detected between all but two populations with only nine known genotypes in an area of 12 km2.
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Klanten, O. Selma, Michelle R. Gaither, Samuel Greaves, Kade Mills, Kristine O’Keeffe, John Turnbull, Rob McKinnon, and David J. Booth. "Genomic and morphological evidence of distinct populations in the endemic common (weedy) seadragon Phyllopteryx taeniolatus (Syngnathidae) along the east coast of Australia." PLOS ONE 15, no. 12 (December 23, 2020): e0243446. http://dx.doi.org/10.1371/journal.pone.0243446.
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The common or weedy seadragon, Phyllopteryx taeniolatus, is an iconic and endemic fish found across temperate reefs of southern Australia. Despite its charismatic nature, few studies have been published, and the extent of population sub-structuring remains poorly resolved. Here we used 7462 single nucleotide polymorphisms (SNPs) to identify the extent of population structure in the weedy seadragon along the temperate southeast coast of Australia. We identified four populations, with strong genetic structure (FST = 0.562) between them. Both Discriminant Analysis of Principle Components (DAPC) and Bayesian clustering analyses support four distinct genetic clusters (north to south: central New South Wales, southern NSW, Victoria and Tasmania). In addition to these genetic differences, geographical variation in external morphology was recorded, with individuals from New South Wales shaped differently for a few measurements to those from the Mornington Peninsula (Victoria). We posit that these genetic and morphological differences suggest that the Victorian population of P. taeniolatus was historically isolated by the Bassian Isthmus during the last glacial maximum and should now be considered at least a distinct population. We also recorded high levels of genetic structure among the other locations. Based on the genomic and to a degree morphological evidence presented in this study, we recommend that the Victorian population be managed separately from the eastern populations (New South Wales and Tasmania).
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Seebeck, John, and Peter Menkhorst. "Status and conservation of the rodents of Victoria." Wildlife Research 27, no. 4 (2000): 357. http://dx.doi.org/10.1071/wr97055.
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Nineteen species of rodents, in two families, have been recorded from Victoria in the modern era. Eighteen are of the family Muridae, represented by 15 native and 3 introduced species. The other species, now extinct in Victoria, was the introduced Sciurus carolinensis. Six of the native species are extinct, one is classified Critically Endangered, one Endangered and four Lower Risk – near threatened. Four of the extinct species were restricted to the semi-arid far north-west; these were Leporillus apicalis, L. conditor, Pseudomys bolami and P. desertor. The two other extinct species, Conilurus albipes and Pseudomys australis, inhabited open forest/woodland, and grassy ecosystems. Extant species include Rattus fuscipes and R. lutreolus, both in the sub-family Murinae; both are widespread and common, particularly in southern Victoria. The remaining seven species are in the sub-family Hydromyinae. Hydromys chrysogaster is widespread in waterbodies throughout the state. Notomys mitchellii and Pseudomys apodemoides occur in dry habitats in the north-west of Victoria; they are uncommon, but most of their habitat is reserved. Mastacomys fuscus, found in higher-rainfall areas of southern and eastern Victoria, from coastal dunes to alpine snowfields, is uncommon. The distribution of Pseudomys fumeus is disjunct, in four widely separated areas. It is classified as Endangered. P. shortridgei is restricted to the Grampians and south-western Victoria, where it may be locally common. The most geographically restricted rodent species in Victoria, Pseudomys novaehollandiae, is Critically Endangered and is the subject of special conservation measures. The most critical threats to rodent populations in Victoria are considered to be (1) the lack of active habitat management for those species that require early seral stages in vegetation, (2) predation by introduced carnivores, and (3) the fragmentation of species into small genetically isolated populations.
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Coventry, DR, BR Walker, GR Morrison, MT Hyland, JC Avery, JJL Maden, and DC Bartram. "Yield responses to lime of wheat and barley on acid soils in north-eastern Victoria." Australian Journal of Experimental Agriculture 29, no. 2 (1989): 209. http://dx.doi.org/10.1071/ea9890209.
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Liming experiments were conducted at 13 sites (soil pH range 4.99-6.27, 0-10 cm depth) in the dryland cropping region of north-eastern Victoria with wheat grown at all sites and barley at 3 sites. Lime increased wheat yields at 9 of the 13 sites with the acid sensitive cultivar Oxley, but the yield increase was not correlated (r2=0.07) with exchangeable Al. Exchangeable A1 was closely related to pH (in 0.01 mmol/L CaCl2). The acid-tolerant wheat cultivars (Matong and Millewa) out-yielded Oxley at a soil pH (CaCl2) of 4.7 and the acid-tolerant cultivars were less responsive to liming. The barley responded to the lime treatment at each of the 3 sites. The use of acid tolerant crop species is recommended on these soils, but an improvement in the predictability of a lime response is required before liming is widely recommended.
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Boer, RFde, GR Steed, BJ Macauley, and Boer RF De. "Effects of stubble and sowing treatments on take-all of wheat in north-eastern Victoria." Australian Journal of Experimental Agriculture 32, no. 5 (1992): 641. http://dx.doi.org/10.1071/ea9920641.
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The effects of stubble management treatments on take-all (Gaeumannomyces graminis var. tritici) of wheat were examined in 2 field experiments in north-eastern Victoria. Wheat stubble from a preceding crop was left standing, mulched, burnt or incorporated into soil prior to sowing wheat. At Rutherglen in 1984, neither the incidence nor the severity of take-all was affected by these treatments. Although the severity of root symptoms on take-all affected plants at anthesis and the incidence of white heads were very low, sowing with a zero till, triple disc drill resulted in a small but significant (P<0.05) increase in both disease severity and white head incidence (2% tillers with white heads), compared with sowing with a conventional tine drill (0.6% tillers with white heads), regardless of the stubble treatment. At Wilby in 1985, the incidence and severity of take-all in wheat at early tillering was higher in plots in which wheat stubble was incorporated into soil prior to sowing (16% plants affected), than in plots where stubble was left standing, mulched or burnt (2, 3 and 4% plants affected, respectively). At anthesis, however, there were no significant differences in the incidence of affected plants between the 4 stubble treatments (average of 81 % plants affected).
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NICHOLLS, T. J., and P. I. VEALE. "The prevalence of Eperythrozoon ovis infection in weaner and adult sheep in north eastern Victoria." Australian Veterinary Journal 63, no. 4 (April 1986): 118–20. http://dx.doi.org/10.1111/j.1751-0813.1986.tb07678.x.
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Wearne, L. J., and J. W. Morgan. "Floristic composition and variability of subalpine grasslands in the Mt Hotham region, north-eastern Victoria." Australian Journal of Botany 49, no. 6 (2001): 721. http://dx.doi.org/10.1071/bt01025.
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Subalpine grasslands in the Mt Hotham area, Victoria, are a common feature of cold-air drainage valleys at elevations of 1260–1660 m. Here, the pooling of cold air prevents trees from establishing and results in a distinct grassland community, composed of tussock grasses and a wide variety of intertussock species. Despite their common occurrence in the region, such grasslands have yet to be fully described. This study focused on identifying the floristic composition of subalpine grasslands across 51 sites in the vicinity of Mt Cope, Dinner Plain and Mt Hotham. The vegetation was sampled from 172, 20-m2 quadrats which were analysed by multivariate ordination techniques. Environmental variables were quantified (i.e. soil depth, pH, aspect, slope, biomass, grazing intensity, altitude). Analysis revealed that the grassland sites varied greatly in their composition and richness. There was a gradual rather than abrupt change in species composition across grassland sites, thought to be related to both the geographic proximity of the sites and environmental factors such as geology. The following five grassland types were identified from the entire data set and defined primarily by the dominant species: Poa hiemata, Poa costiniana, Poa sieberiana, Poa labillardierei and Themeda triandra. Vector-fitting revealed significant correlations between the location of the quadrats in ordination space and altitude, biomass, pH and soil depth. Both increasing altitude and biomass were associated with the P. costiniana grasslands and some of the P. hiemata grasslands. The P. hiemata grasslands were widely distibuted across altitudes and geology (i.e. basalt and metamorphic). The lower-altitude grasslands (P. labillardierei, P. sieberiana, T. triandra) were associated with increasing pH and increasing soil depth. These grasslands were of limited extent and usually occupied small areas within larger grasslands dominated by P. hiemata or P. costiniana. The floristic composition of the Hotham grasslands (1260–1630 m a.s.l.), when compared with previously published data from the higher-elevation subalpine grasslands of both the Dargo High Plains (1450–1680 m a.s.l.) and Bogong High Plains (>1700 m a.s.l.), showed that there was no distinct differentiation between grasslands of these areas. However, there was a suggestion of gradual floristic change across this geographic range. This study highlights the need for ongoing conservation of grasslands in the Hotham area, particularly those at lower altitudes (1260–1450 m a.s.l.), which represent the upper limits of many temperate grassland species.
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Hawking, J. H., and T. R. New. "Development of eggs of dragonflies (Odonata: Anisoptera) from two streams in north‐eastern Victoria, Australia." Aquatic Insects 17, no. 3 (July 1995): 175–80. http://dx.doi.org/10.1080/01650429509361584.
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Coventry, DR, and WJ Slattery. "Acidification of soil associated with lupins grown in a crop rotation in north-eastern Victoria." Australian Journal of Agricultural Research 42, no. 3 (1991): 391. http://dx.doi.org/10.1071/ar9910391.
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Soil pH decline and net acidification inputs were determined for a long-term crop rotation experiment at Rutherglen in north-eastern Victoria. The rotations utilized were continuous wheat (WW), a 1 : 1 wheat-lupin sequence (WL) and continuous lupins (LL), and each rotation was cropped from 1975-1989. The soil at the site had an initial pH (0.01 mol/LCaCl2) of 6.0 (0-10 cm depth), sandy loam texture, and had a past use of grape vines and then lucerne pasture. The soil pH (0-10 cm) declined for each rotation with time (1977/78-1988/89), decreasing by about 0.8 units for WW and further decreasing with the inclusion of lupin in the rotation. Compared with the WW soil, the WL soil pH was 0.7 and 0.4 units lower at 5-10 cm and 10-15 cm depth and the LL soil pH was 1.0 and 0.8 units lower at 5-10 and 10-15 cm depth. There was no difference in pH between WW and WL below 20 cm depth, but the LL soil had a significantly lower pH to 40 cm depth. Acidification rates were calculated for the period of cropping and for the 3 rotations, with rates of 3.22, 4.11 and 5.26 kmols H+/ha.yr as net acid input for WW, WL and LL rotations. These values represent a rapid rate of soil acidification. The removal of alkalinity in grain accounted for between 15-21% of the overall calculated acidification rate for the 3 rotations. Therefore, it is likely in this cropping system that the acidification largely results from progressive nitrate leaching.
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Hawking, John H., and Timothy R. New. "The development of dragonfly larvae (Odonata: Anisoptera) from two streams in north-eastern Victoria, Australia." Hydrobiologia 317, no. 1 (January 1996): 13–30. http://dx.doi.org/10.1007/bf00013722.
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WELLS, ALICE, and ARTURS NEBOISS. "Australian Diplectroninae reviewed (Insecta: Trichoptera), with description of 21 new species, most referred to a new genus." Zootaxa 4415, no. 1 (April 27, 2018): 1. http://dx.doi.org/10.11646/zootaxa.4415.1.1.
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The history of studies on Australian caddisflies in the hydropsychid subfamily Diplectroninae is outlined against a broader background of uncertainties in the delineation of the worldwide type genus, Diplectrona Westwood. For the Australian fauna, keys are given to genera of Diplectroninae that occur in Australia and to adult males of species in Diplectrona (including a newly synonymised genus, Diemeniluma Neboiss), Austropsyche Banks, and Arcyphysa gen. nov. Of the 32 diplectronine species recognised, six are referred to each of Diplectrona and Austropsyche, among them one and four newly described species, respectively; and four established species are transferred from Diplectrona to Arcyphysa gen. nov., to join 16 newly described species. Diplectrona cognata Banks is synonymised with D. spinata Banks and Diplectrona bispinosa Jacquemart with Austropsyche victoriana Banks. Diagnoses and descriptions are accompanied by line drawings illustrating most of the diagnostic features of the genera and of most species, supplemented by photographic images. Australian species of Diplectrona are found from south-eastern Queensland to Tasmania, but neither Austropsyche nor Arcyphysa is known from Tasmania. Austropsyche extends from the Grampians in south-western Victoria to south-eastern Queensland, and the majority of species of Arcyphysa are recorded from north-eastern mainland Australia.
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Christidis, Faye, and John C. Dean. "Phylogeny and distribution of the mayfly genus Austrophlebioides Campbell & Suter (Ephemeroptera:Leptophlebiidae)." Invertebrate Systematics 22, no. 1 (2008): 29. http://dx.doi.org/10.1071/is07038.
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The mayfly genus Austrophlebioides Campbell & Suter, 1988 is endemic to Australia and is widely distributed in eastern Australia and Tasmania. Here, the phylogenetic relationships among species of Austrophlebioides are investigated using cladistic analyses based on morphological characters of the nymph and adult, and the first phylogenetic hypothesis for the genus is presented. The results from the phylogenetic analyses support the recognition of three monophyletic species-groups: the ‘rieki’, ‘pusillus’ and ‘marchanti’ clades. The ‘pusillus’ clade is the sister-group to the ‘rieki’ clade, and the clade comprising these two groups is sister to the ‘marchanti’ clade. Minimal overlap was observed in the geographic distribution of the three Austrophlebioides clades. The ‘rieki’ clade is confined to the Wet Tropics bioregion of north-eastern Queensland. The ‘pusillus’ clade is distributed from central-eastern Queensland to Victoria. The ‘marchanti’ clade occurs in southern New South Wales, Victoria and Tasmania. Distributional limits of the three clades correspond with the presence of recognised biogeographic barriers (Burdekin Gap, Hunter Valley and Bass Strait) suggesting that vicariance has been important in the differentiation of the group and in determining present-day distributions of species.
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Aitken, Campbell, and Cheryl Delalande. "A Public Health Initiative for Steroid Users in Victoria." Australian Journal of Primary Health 8, no. 2 (2002): 21. http://dx.doi.org/10.1071/py02022.
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Anabolic steroid injectors are at risk of infection with blood-borne viruses (BBVs), but have received little attention from researchers, practitioners or agencies working in public health. In recognition of this gap, in early 1996 the Steroid Peer Education Project (SPEP) began providing part-time mobile needle and syringe distribution and health information and referral services to steroid injectors in north-eastern Melbourne. Demand repeatedly caused the project to expand, and its sole peer worker now operates Victoria-wide, five days per week. Basic information on injecting practices collected from SPEP clients showed that many were at risk of BBV infection. This led to the initiation of a collaborative research project, in which SPEP clients were tested for BBV antibodies and provided detailed information about their risk behaviours. Of 29 steroid injectors tested between May and August 1999, three (10%) had antibodies to the hepatitis C virus, and they described behaviour which could spread the virus to other steroid users. These results show that blood-borne viruses are present in the Victorian steroid injecting community, and reinforce the SPEP's commitment to reducing harm in this group.
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PERKINS, ANDREW J. "Hydrocotyle simulans (Araliaceae), a new perennial species from south-eastern Australia." Phytotaxa 437, no. 2 (March 25, 2020): 66–72. http://dx.doi.org/10.11646/phytotaxa.437.2.3.
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Hydrocotyle simulans, a new perennial species from south-eastern Australia, is here described with associated illustration, photographic images and distribution map. The new species is restricted mostly to freshwater swamps in coastal areas of south-eastern South Australia, southern Victoria and to the Furneaux Group of islands, off the north-eastern coast of Tasmania. Hydrocotyle simulans resembles both H. plebeya and H. pterocarpa, in having orbicular-cordate to reniform leaves, hydathodes along leaf lamina margins and broadly ovate to orbicular stipules with entire margins. It differs from these taxa by a combination of characters, such as reflexed white trichomes congregated at the petiole apices, ovate floral bracts with basal lobes, subsessile flowers with pale to dark crimson petals and lenticular mericarps with minutely rugulose surfaces when mature.
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Sparrow, LA, and NC Uren. "The role of manganese toxicity in crop yellowing on seasonally waterlogged and strongly acidic soils in north-eastern Victoria." Australian Journal of Experimental Agriculture 27, no. 2 (1987): 303. http://dx.doi.org/10.1071/ea9870303.
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Concentrations of exchangeable and easily reducible manganese (Mn) were measured monthly for 3 1 months in acidic soils at 6 sites used for cropping in north-eastern Victoria. Manganese concentrations in shoots of wheat (Triticum aestivum), when present, were also measured. Changes in Mn concentrations in the soils and in wheat plants were related to seasonal conditions and to the occurrence of crop yellowing, a chlorotic and stunting disorder which affects cereals grown in the region. Peaks in the concentration of exchangeable Mn occurred either when the soils were waterlogged for a prolonged period or when they were subjected to extreme heating and drying during summer. Shoot concentrations of up to 1200 mg/kg of Mn were measured for plants growing in waterlogged soils. However, in some cases concentrations less than 400 mg/kg, a concentration not considered harmful, were measured in shoots of wheat growing under waterlogged conditions but which still showed symptoms of severe chlorosis and stunting. In the absence of waterlogging, concentrations of Mn in wheat shoots were usually less than 400 mg/kg. The evidence suggests that Mn toxicity is not the primary cause of crop yellowing in north-eastern Victoria, but Mn toxicity, induced by waterlogging, probably contributes to crop yellowing when waterlogging is severe. Soil acidity did not appear to be high enough to cause Mn toxicity in the absence of waterlogging.
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Slattery, J. F., and D. R. Coventry. "Persistence of introduced strains of Rhizobium leguminosarum bv trifolii in acidic soils of north-eastern Victoria." Australian Journal of Experimental Agriculture 39, no. 7 (1999): 829. http://dx.doi.org/10.1071/ea98150.
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Summary. A 5-year study was undertaken to establish if introduced rhizobia with higher tolerance to Al than the current inoculant Rhizobium can persist and continue nodulating subterranean clover (Trifolium subterraneum L.) in acidic soils. Two Rhizobium leguminosarum bv trifolii strains were introduced as seed inoculants with subterranean clover at 2 acidic sites (pHCa 4.1 and pHCa 4.3), where lime and gypsum had been applied as soil amendments. Strain NA3001 was selected for its tolerance to high Al concentrations when grown on an agar medium and WU95, which is a widely used commercial inoculant strain, for its relatively poor tolerance to Al when grown on agar. Liming the soil increased its pH and reduced the concentration of extractable Al at both sites. In the year the subterranean clover was sown, strain WU95 had nodule occupancy of 20–49%, decreasing with time to 4–7% after 5 seasons (1991–95). The nodule occupancy of strain NA3001 was initially lower than strain WU95 (14–16%), but its occupancy did not vary with time (significant strain x time interactions, P<0.05). These data indicate that the acid-tolerant strain NA3001 has the potential to persist in these strongly acidic soils and, despite the presence of high background populations of naturalised rhizobia, to continue initiating nodulation. The use of soil amendments (lime and gypsum) to increase pH and reduce soluble Al concentrations did not affect the nodule occupancy of either NA3001 or WU95 with time, nor did it slow the rate of decline in nodule occupancy of WU95.
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Mcquilton, John. "Doing the ‘back block boys some good'∗: The exemption court hearings in north‐eastern victoria, 1916." Australian Historical Studies 31, no. 115 (October 2000): 237–50. http://dx.doi.org/10.1080/10314610008596129.
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Slattery, W. J., B. Christy, B. M. Carmody, and B. Gales. "Effects of composted feedlot manure on the chemical characteristics of duplex soils in north-eastern Victoria." Australian Journal of Experimental Agriculture 42, no. 3 (2002): 369. http://dx.doi.org/10.1071/ea00121.
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The beef feedlot industry in Australia produces a large amount of solid organic by-product each year that is currently applied to agricultural land as a fertiliser supplement. Manure is known to be a valuable source of organic matter and some plant nutrients, especially nitrogen and phosphorus. In addition, manure contains excessive quantities of cations such as sodium (Na) and potassium (K), which may result in long-term sustainability problems for the soil, particularly when large amounts are applied over short time periods. The aim of this study was to determine the effects of composted beef feedlot manure when applied to agricultural soils. Two sites were selected, one a brown Dermosol and the other a red Kurosol, both in north-eastern Victoria near the Rutherglen Research Institute. Both sites received rates of manure up to 109 t/ha in 1996. In 1997 soil samples were collected and compared with untreated control soils. The Dermosol site was sown to an oat and clover mixture in 1996 and 1997 and the red Kurosol was sown to lupin in 1996 and wheat in 1997. The application of composted bovine manure resulted in a 1% increase in soil organic carbon, an increase in soil pH by 1.5 units, increased levels of magnesium, calcium, nitrogen and K in the surface 10 cm soil layer at both sites and an increase in extractable phosphorus levels in the subsoil. There was no detectable increase in surface Na, although there was a small but significant decrease in Na in the 40–80 cm soil layer. It is suggested that soluble organic compounds, migrating down through the soil profile are able to complex with Na and effectively remove some of this cation from the exchange sites of the clay surfaces. In addition, the high porosity of these soils coupled with the high degree of Na mobility ensures that most of this cation is transported deeper into the soil profile. The beneficial effects of applying composted manure are promising as a means of reducing sodicity although these results will require further validation. In addition, the long-term effects of saturating subsurface soil with Na are also a cause for concern and need to be further investigated.
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Trapnell, L. N., A. M. Ridley, B. P. Christy, and R. E. White. "Sustainable grazing systems: economic and financial implications of adopting different grazing systems in north-eastern Victoria." Australian Journal of Experimental Agriculture 46, no. 8 (2006): 981. http://dx.doi.org/10.1071/ea03022.
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Data from experimental sites at Maindample and Ruffy, on which different grazing systems were implemented, was extrapolated to a 100-ha paddock on a commercial property to determine their economic and financial implications. Included into the analyses were risk assessments to allow for sowing failures due to adverse seasonal conditions and price variability of meat and wool during the life of the pasture. Where graziers carried out pasture improvement, the results indicated that changing from control (low-input pasture stocked at a low intensity) to high-input (high stocking rates and fertiliser addition) rather than medium-input pasture was the more profitable option. In changing to high-input pasture at Maindample, a cattle activity using nominal discount rates of 10%/year required success rates in pasture establishment of ≥80% for profitability. For cattle at Ruffy, using the same discount rate, the change was profitable for success rates in pasture establishment of ≥70%, but lamb and wool activities were only profitable for success rates in pasture establishment of ≥90%. Over both sites, cattle at Ruffy was the only activity in which the change was profitable for nominal discount rates of 15%/year, but success rates for pasture establishment also had to be ≥90%. Financial analyses performed on these increases in profitability confirmed that they were feasible because the payback periods for deficits incurred during the development and management of the improved pasture were less than the 13-year life of the investments. However, using a contractor to improve the pastures was not feasible because the deficits could not be repaid within the period of the investment. These results support the current low adoption of perennial pastures and have significant implications for catchment management bodies in Victoria and New South Wales where heavy reliance is placed on perennial pastures to improve catchment outcomes.
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HENDRICH, LARS, and CHRIS H. S. WATTS. "Taxonomic revision of the Australian predaceous water beetle genus Carabhydrus Watts, 1978 (Col. Dytiscidae, Hydroporinae, Hydroporini)." Zootaxa 2048, no. 1 (March 23, 2009): 1–30. http://dx.doi.org/10.11646/zootaxa.2048.1.1.
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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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Edwards, J., P. A. Taylor, D. G. Parbery, and G. M. Halloran. "Peppermint rust in Victoria: the incidence - severity relationship and its implication for the development of an action threshold." Australian Journal of Agricultural Research 51, no. 1 (2000): 91. http://dx.doi.org/10.1071/ar99012.
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Todd's Mitcham peppermint is grown in north-eastern Victoria for essential oil production. Peppermint rust, caused by Puccinia menthae, reduces oil yields by up to 50%. Disease progress was monitored over 4 seasons (1994–98) on untreated peppermint and peppermint treated each season with propiconazole. The untreated peppermint died out within 4 years. A relationship between disease incidence and disease severity was found that could be described by the equation Y = 0.26 x 10 0.02X where Y is disease severity (%) and X is disease incidence (%), with a linear phase at levels of disease incidence <60%. The relationship was consistent for data from different seasons, two separate geographic regions of Victoria, and for pot- and field-grown peppermint. The use of the incidence–severity relationship to develop an action threshold for the initiation of fungicide treatments is discussed.
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Friesen, T. Max. "Radiocarbon Evidence for Fourteenth-Century Dorset Occupation in the Eastern North American Arctic." American Antiquity 85, no. 2 (November 12, 2019): 222–40. http://dx.doi.org/10.1017/aaq.2019.88.
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One of the most persistent debates in the archaeology of the North American Arctic relates to thirteenth-century AD population distributions and movements. Around this time, the final culture of the long-lived Paleo-Inuit tradition, known as Late Dorset, was replaced by Thule Inuit, who migrated from Alaska to the Eastern Arctic. Due to the almost complete lack of evidence for direct interaction between Dorset and Thule, there are currently two contrasting models for this transitional period. The first proposes a temporal hiatus between Late Dorset and Thule during which the Eastern Arctic was unoccupied. The second proposes that Late Dorset persisted to at least the late thirteenth century and still occupied some regions of the Eastern Arctic when Thule arrived. Resolution of this question depends largely on radiocarbon dates, particularly for the poorly understood Late Dorset period. This article presents 56 new AMS radiocarbon dates from three Late Dorset sites in the Iqaluktuuq region of southeastern Victoria Island in the Central Arctic. They resolve a significant part of the debate by confirming that Dorset settlement continued in this region later than AD 1300, thus overlapping with Thule settlement in adjacent regions for decades, and perhaps as much as a century.
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Islam, A., R. E. White, and D. Chen. "Nitrification activity in acid soils of north-eastern Victoria, Australia, as affected by liming and phosphorus fertilisation." Soil Research 44, no. 8 (2006): 739. http://dx.doi.org/10.1071/sr06058.
Full textAbstract:
A short-term nitrification assay (SNA) was used to measure the activity of soil nitrifiers and their response to pH change in acid pasture soils (pH 4.8–5.3 in water) at the sites of Maindample and Ruffy in north-eastern Victoria, Australia. Changes in soil pH associated with lime applications in the field resulted in a change in the optimum pH (pHopt) of the nitrifying organisms in the range 4.93–6.94. Nitrification in these soils was predominantly autotrophic, and rates increased from 0.18 to 0.93 μg NO3–-N/g.h with increasing pH. The strong positive correlation between field soil pH and the respective pHopt values suggested that the indigenous nitrifier population had adapted to the change in soil pH. SNA measurements within 6 months of lime application to Maindample soil showed that the soil nitrifying organisms had rapidly adapted to the pH change. However, the residual effect of lime on nitrifier activity was long-lasting (up to 8 years) and may involve more than a simple effect on soil pH. Repeat application of lime further enhanced nitrification activity on an already elevated activity, but only if sufficient time was allowed (>3 years) after the earlier application. Phosphate applications to these soils did not affect the general pH response in nitrifier activity. Both soils had considerable capacity for nitrification, even at pHs much lower than the commonly accepted range for autotrophic nitrifiers.
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Slattery, WJ, GR Morrison, and DR Coventry. "Liming effects on soil exchangeable and soil solution cations of 4 soil types in north-eastern Victoria." Soil Research 33, no. 2 (1995): 277. http://dx.doi.org/10.1071/sr9950277.
Full textAbstract:
The effects of lime additions on exchangeable and soil solution cations of four soil types in north-eastern Victoria are discussed. Liming significantly (P < 0.05) reduced the concentration of exchangeable (1 M KCl), extractable (0.01 M CaCl2), soil solution total and monomeric aluminium. Raising the soil pHCa to 4.8 decreased Ale, concentrations below 1 mg kg-1, Al saturation % of the effective cation exchange capacity below 5 and AlTot below 5 PM; and raising the soil pHCa to 5.8 decreased MnCa concentrations below 10 mg kg-1 and AlTot below 2�m on the four soil types used in this study. Grain yield responses were best described by the sum of the activities of the Al monomers. Where organic C was present, responses could also be attributed to the complexing of monomeric Al. Grain yield responses could not always be reliably predicted by the Al saturation % of the effective cation exchange capacity. Liming significantly (P < 0.05) increased the concentration of Ca in the ECEC, but the Ca activity was not well correlated with lime response for all sites. The In ratio of aCa2+/�aAl- mono shows promise in predicting negative responses to lime applications (with values > 6) where soil pHCa is less than 5. The combination of Ca activity and the sum of the activity of the Al monomers, together with organic C content, may provide a better description of the responsiveness of acid soils to lime applications.
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Slattery, WJ, and DR Coventry. "Response of wheat, triticale, barley, and canola to lime on four soil types in north-eastern Victoria." Australian Journal of Experimental Agriculture 33, no. 5 (1993): 609. http://dx.doi.org/10.1071/ea9930609.
Full textAbstract:
Lime requirement curves based on relative yield and pH data for 4 soil types were derived to estimate the amount of lime required to reach maximum yield for wheat, triticale, barley, and canola. Simple equations expressing lime requirement as a function of soil pH accounted for >90% of the variation in applied lime on 3 soil types (red brown earth, red podsolic, podsolised red earth). When aluminium and manganese (0.01 mol CaCl2/L extracted) were included in these equations, either individually or together, they did not improve the relationship significantly for these 3 sites; however, manganese significantly improved the predictability of lime for solodic soil. A comparison of this model with a laboratory-based model showed good correlation for 3 soils (red brown earth, red podsolic, podsolised red earth), but the laboratory method underestimated the field lime requirement of solodic soil.
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van, der Ree R. "The occurrence of the yellow-footed antechinus Antechinus flavipes in remnant linear habitats in north-eastern Victoria." Australian Mammalogy 25, no. 1 (2003): 97. http://dx.doi.org/10.1071/am03097.
Full textAbstract:
THE yellow-footed Antechinus Antechinus flavipes is distributed from South Australia, through central Victoria, New South Wales and into Queensland as well as in south-western Australia (Van Dyck 1998). In south-eastern Australia, the conservation of A. flavipes is not assured because its range largely corresponds with the temperate woodlands that have undergone extensive clearing and degradation (Menkhorst 1995). Despite this, no studies on the effects of the loss and fragmentation of habitat on A. flavipes have been published in the scientific literature. In contrast, numerous ecological studies that investigate the consequences of anthropogenic disturbance have been undertaken on its congeners, the brown antechinus Antechinus stuartii and agile antechinus Antechinus agilis (e.g., Bennett 1987; Downes et al. 1997; Knight and Fox 2000). These studies indicate that the abundance of these species may be influenced by patch size (Bennett 1987; Dunstan and Fox 1996), distance to large forest blocks (Downes et al. 1997), habitat structure (Knight and Fox 2000) and degree of tolerance to modified habitats that surround the patch (Knight and Fox 2000). Can the response of A. stuartii and A. agilis be used to predict how the loss, fragmentation and degradation of habitat may affect A. flavipes? In this note, I provide preliminary information about a population of A. flavipes occupying linear fragments of woodland in an agricultural landscape in southeastern Australia.
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Culvenor, R. A., J. T. Wood, A. L. Avery, W. Dempsey, S. E. McDonald, G. Ronnfeldt, and P. E. Veness. "Multi-site evaluation on acid soils of a Phalaris aquatica × P. arundinacea × P. aquatica backcross population bred for acid soil tolerance." Australian Journal of Agricultural Research 55, no. 6 (2004): 681. http://dx.doi.org/10.1071/ar03262.
Full textAbstract:
Half-sib families in the AT98 Phalaris aquatica × P. arundinacea × P. aquatica backcross population bred for acid soil tolerance were compared for establishment, persistence, and yield with phalaris (P. aquatica L.) controls and cocksfoot (Dactylis glomerata L. cv. Porto) at 4 sites in south-eastern Australia with the aim of selecting the parents of a new cultivar. The sites had strongly acid soils but differed in parent material, pH profile, soil fertility, and suitability for phalaris. Establishment by AT98 was clearly superior to all phalaris controls and similar to cocksfoot in an acid soil high in Al to depth at Chiltern, north-eastern Victoria, after sowing in early spring 2000. It was considered likely that better establishment by AT98 was due to its higher Al tolerance. In contrast, little variation in establishment was observed at 3 other sites sown in late autumn 1999, possibly due to a longer period free of moisture stress compared with the later sown Chiltern site. Once established, the control cultivars of phalaris at the autumn-sown sites in general persisted and yielded similarly to the mean of the AT98 families. Significant family variation was observed and predicted heritability on a family mean basis was high for persistence measured as basal frequency and moderately high for yield in the third year. Family by site interaction was relatively low for both attributes. A cultivar based on the best families should give more reliable establishment on acid soils high in Al under conditions where rapid root growth to depth is needed for survival, and give more flexibility of sowing date on these soils. Its best performance relative to cv. Landmaster in terms of third-year yield was predicted to occur on granite-derived soils in north-eastern Victoria.