Australian Journal of Botany Australian Journal of Botany Society
Southern hemisphere botanical ecosystems
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Australian Journal of Botany

Australian Journal of Botany

Australian Journal of Botany is an international journal for the publication of original research and reviews in plant science with relevance to Southern Hemisphere ecosystems including ecology and ecophysiology, conservation biology and biodiversity, forest biology and management, cell and molecular biology, palaeobotany, reproductive biology and genetics, mycology and pathology and structure and development. Read more about the journalMore

Editor-in-Chief: Dick Williams

Current Issue

Australian Journal of Botany

Volume 64 Number 6 2016

BT16031Arsenic detoxification in two populations of Borreria verticillata (Rubiaceae) with differential tolerance to the metalloid

Samara Arcanjo-Silva, Naiara V. Campos, Ivan Becari-Viana, Luzimar C. da Silva, Cleberson Ribeiro and Aristéa A. Azevedo
pp. 467-475

Water and soil pollution promotes environmental degradation and interferes with the fauna and flora, and pollutants such as arsenic (As) are toxic to most organisms. Plant populations that grow on polluted and unpolluted sites have differences in As-tolerance, and more efficient strategies to combat the toxic effects of the metalloid have been identified in plants from the contaminated site. The identification of As-tolerant plant species/populations allows for their use in the revegetation of areas contaminated with this element.

BT16031 Abstract  | PDF (885 KB) - $25.00 

BT16008Modelling the influence of snowfall on cyanobacterial crusts in the Gurbantunggut Desert, northern China

R. Hui, R. M. Zhao, L. C. Liu, G. Li, H. T. Yang, Y. H. Gao and X. Q. Wang
pp. 476-483

Little information is available regarding the influence of snowfall on BSCs in desert ecosystems. In this present study, we assessed the effects of snowfall on photosynthesis, moisture contents, and concentrations of soluble protein and malondialdehyde (MDA). On the basis of these analyses, we discussed the necessity and importance of snowfall for cyanobacterial crusts in desert regions.

BT16008 Abstract  | PDF (376 KB) - $25.00 

BT16094Explaining the distribution, structure and species composition of snow-patch vegetation in Tasmania, Australia

Jared Parry, Jamie B. Kirkpatrick and Jon Marsden-Smedley
pp. 484-491

In Tasmania, snow does not usually persist over the winter outside 86 ha in 119 snow patches. There are five floristic communities in these patches, all being distinct from those in mainland Australian snow patches. The Tasmanian snow patches merit listing as a threatened ecosystem on the basis of their distinctiveness and restricted extent.

BT16094 Abstract  | PDF (393 KB) - $25.00 

BT15285Seed dormancy and germination in different populations of the Argentinan endemic halophyte grass, Sporobolus phleoides (Poaceae: Chloridoideae)

Geraldina Alicia Richard, María Carolina Cerino, José Francisco Pensiero and Juan Marcelo Zabala
pp. 492-500

Sporobolus phleoides is a potential resource for saline environments. Its seeds showed non-deep physiological dormancy, which was removed with puncturing treatments. Six different evaluated populations showed similar germination responses, especially when they were subjected to cold stratification. This factor appears to be determinant on seedling establishment in natural environments.

BT15285 Abstract  | PDF (345 KB) - $25.00   | BT15285Supplementary Material (128 KB)

BT16070Solving taxonomic problems within the Aldama genus based on anatomical characters

Aline Bertolosi Bombo, Arinawa Liz Filartiga and Beatriz Appezzato-da-Glória
pp. 501-512

Anatomical characteristics are important for taxonomic studies on different plant families. The present study focussed on four Brazilian Aldama species (Asteraceae family) that were chosen because they are difficult to identify and have biological and pharmacological potential. All four species analysed could be differentiated on the basis of the set of anatomical features described for each species. So, we concluded that anatomy is able to provide data to assist with the taxonomic problems within the four species analysed herein.

BT16070 Abstract  | PDF (2.8 MB) - $25.00 

BT16087Cause and effects of a megafire in sedge-heathland in the Tasmanian temperate wilderness

Ben J. French, Lynda D. Prior, Grant J. Williamson and David M. J. S. Bowman
pp. 513-525

Following cessation of Aboriginal land management, the temperate wilderness of south-western Tasmania has been burnt by infrequent, extensive wildfires, including in 2013. We surveyed the effects of this wildfire and found that it killed most woody vegetation in sedge-heathland. Fire severity was affected by time since previous fire, with the wildfire self-extinguishing near the boundary of a milder management fire set 2 years earlier. Our study demonstrated how prescribed burning can create landscape heterogeneity and limit megafires.

BT16087 Abstract  | PDF (875 KB) - $25.00   | BT16087Supplementary Material (86 KB)

BT16021Differences in disturbance type and nutrient availability favour different functional traits across three co-occurring montane wetland systems in eastern Australia

John T. Hunter
pp. 526-529

Resource allocation within montane wetlands was tested against nutrient, fire and disturbance frequency gradients. High nutrients and low disturbance favoured polycarpic species, large leaves and fruit. Low nutrients and moderate disturbance favoured woody polycarpy and larger seeds. Frequently inundation favoured soil stored diaspores and monocarpy with rapid vegetative growth.

BT16021 Abstract  | PDF (180 KB) - $25.00 

BT16025Did early logging or changes in disturbance regimes promote high tree densities in river red gum forests?

Hugh W. McGregor, Matthew J. Colloff and Ian D. Lunt
pp. 530-538

Woody plant density has increased in many ecosystems, but whether this is principally driven by post-disturbance recovery or a cessation of disturbance events is contested. We examined which these best explain changes in river red gum forests along the Murray River, using stumps to infer historic forest structure.

BT16025 Abstract  | PDF (448 KB) - $25.00 

BT16034Ant defence of a dioecious shrub, Adriana quadripartita (Euphorbiaceae), with extrafloral nectaries

Kieren P. Beaumont, Duncan A. Mackay and Molly A. Whalen
pp. 539-546

Extrafloral nectaries (EFNs) attract ants that can provide defence against herbivorous insects, although the outcomes of this mutualism can vary greatly. For the dioecious shrub, Adriana quadripartita, the presence of ants tending EFNs reduced herbivore numbers; however, herbivore numbers were overall greater on male plants and ants reduced leaf damage on male but not female plants. In the context of this and previous studies on Adriana, plant sex is another factor that is likely to influence the outcomes of this ant–plant–herbivore interaction.

BT16034 Abstract  | PDF (739 KB) - $25.00 

BT15265Spinifex–mallee revegetation: implications for restoration after mineral-sands mining in the Murray–Darling Basin

Ian R. K. Sluiter, Andrew Schweitzer and Ralph Mac Nally
pp. 547-554

Approved and proposed mineral sands mines in the Murray–Darling Basin have the potential to adversely affect large tracts of land with spinifex–mallee vegetation. Broad-scale revegetation of this vegetation type has not been attempted in south-eastern Australia, but a small-scale revegetation trial at Wemen in Victoria’s semiarid north-west indicated much promise with hand-planting of tubestock of spinifex (Triodia scariosa) and mallee eucalypts. Although spatially limited, the results of this trial suggest that spinifex tubestock planted at high densities can achieve restoration objectives for this component of spinifex–mallee vegetation.

BT15265 Abstract  | PDF (713 KB) - $25.00   | BT15265Supplementary Material (303 KB)

Current Issue

The peer-reviewed and edited version of record published online before inclusion in an issue

Published online 27 September 2016

BT16065Half-topping 'A4' macadamia trees has a markedly different effect on yield than full-topping

Trevor Olesen, David Robertson, Alister Janetzki and Tina Robertson
 

Tree height control is important in the management of macadamia orchards. Hedging the tops of the trees is quick and cheap, but brings with it a large yield penalty. We show that hedging only half the tops of the trees has much less of a yield penalty and restricts the regrowth.

BT16065 Abstract  | PDF (123 KB) - $25.00 

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These articles have been peer reviewed and accepted for publication. They are still in production and have not been edited, so may differ from the final published form.

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  2. New handbook for standardised measurement of plant functional traits worldwide

    Australian Journal of Botany 61 (3)
    N. Pérez-Harguindeguy, S. Díaz, E. Garnier, S. Lavorel, H. Poorter, P. Jaureguiberry, M. S. Bret-Harte, W. K. Cornwell, J. M. Craine, D. E. Gurvich, C. Urcelay, E. J. Veneklaas, P. B. Reich, L. Poorter, I. J. Wright, P. Ray, L. Enrico, J. G. Pausas, A. C. de Vos, N. Buchmann, G. Funes, F. Quétier, J. G. Hodgson, K. Thompson, H. D. Morgan, H. ter Steege, L. Sack, B. Blonder, P. Poschlod, M. V. Vaieretti, G. Conti, A. C. Staver, S. Aquino, J. H. C. Cornelissen

Best Student Paper

The Best Student Paper published in 2015 has been awarded to Rina Aleman.

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