Social and Behavioral Sciences Commons^™

Climate Change Impacts On Coastal Biodiversity, V R. Burkett, Robert J. Nicholls, Leandro Fernandez, Colin D. Woodroffe

Faculty of Science - Papers (Archive)

No abstract provided.

Bush Lemons And Beach Hauling: Evolving Traditions And New Thinking For Protected Areas Management And Aboriginal Peoples In New South Wales, Michael Adams, Vanessa Cavanagh, Bridget Edmunds

Faculty of Science - Papers (Archive)

Aboriginal communities in New South Wales currently are engaged in negotiating with government agencies about cultural activities focussing on access to and harvest of wild resources on and off protected areas. These are ‘co-management’ situations in the broadest sense, where both Indigenous peoples and protected area management agencies actively are engaged in the same landscape. Aboriginal peoples are using adaptive approaches to continue millennia of cultural traditions in social and physical environments that are significantly changed and changing. Some protected area managers are seeking to understand and adapt agency responses, so as to engage and support Aboriginal interests. These contrasting …

Lions, Leopards And Muskoxen: A (Very) Light-Hearted Look At The Ups, Downs, Ins And Outs Of A Postdoctoral Career Through The Eyes Of Two Zoologists, Matt W. Hayward, Adam J. Munn

Faculty of Science - Papers (Archive)

This paper arose out of a seminar series for the Royal Zoological Society of New South Wales' 2006 student forum and workshop, "From the Horse's Mouth: Career Insights from Working Zoologists".The paper is aimed mainly at horiours and postgraduate zoologists, and describes our experiences as postdoctoral researchers, including what postdoctoral research is, how we got to be there (a PhD is essential), whether it was what we hoped it would be (a resounding yes), a brief summary of some postdoctoral highlights (MWH researched lions in Africa and AM muskoxen in Alaska), and of course some lowlights (low income, short-term positions …

Managing Our Waste, Faisal Ibney Hai

Faculty of Science - Papers (Archive)

No abstract provided.

The Vegetation Requirements Of Superb Fairy-Wrens (Malurus Cyaneus) In Non-Urban Edge And Urbanised Habitats, H Parsons, Kristine O. French, R E. Major

Faculty of Science - Papers (Archive)

Urbanisation has created an environment with a broad spectrum of habitats of differing quality for birds. Understanding habitat characteristics is necessary for effective conservation of species in urban environments. We investigated the vegetation requirements of a small, shrub-nesting, Australian bird, the Superb Fairy-wren (Malurus cyaneus), and the relative quality of urban habitats in the Illawarra region of New South Wales. Vegetation was assessed in three different habitats: suburban sites within Superb Fairy-wren territories (n = 20 sites), suburban sites where Fairy-wrens were absent (n = 20), and rural–woodland edge in which Fairy-wrens were present (n = 17). This third habitat …

Soil Temperatures During Autumn Prescribed Burning: Implications For The Germination Of Fire Responsive Species?, Trent D. Penman, A L. Towerton

Faculty of Science - Papers (Archive)

Prescribed fire is a widely applied management tool in native forests. There have been concerns raised about the ecological impacts of prescribed fire on native flora. One aspect of the debate is the extent towhich prescribed fire heats the soil to levels reported to trigger germination in the soil seed banks.We used Thermochrons to test soil temperatures at 2 and 5 cm in prescribed burns in dry sclerophyll forests. Soil temperatures during the burns were generally low (<40◦C) with less than 5% of sites being exposed to temperatures necessary for the germination of fire-dependent shrub species. High temperatures were associated with high fuel consumption and large woody debris. This information suggests that prescribed fires, carried out according to standard practices, in these forests are unlikely to trigger germination in the majority of the soil-stored seed banks. If ecological burns in these forests are aimed at promoting populations of senescing obligate seeder species, they need to be hotter than standard practice if they are to achieve their objectives, although we acknowledge that there are inherent risks associated with hotter burns.

Impact Of A Chytrid-Related Mortality Event On A Population Of The Green And Golden Bell Frog Litoria Aurea, Trent D. Penman, G Muir, E Magarey, E Burns

Faculty of Science - Papers (Archive)

Chytridiomycosis is considered a key threatening process under Commonwealth legislation. Little is known of the impact of this pathogen within wild populations. The Green and Golden Bell Frog Litoria aurea is a threatened species that is thought to be affected by this disease. Here we present an example of a chytrid related mortality event within an apparently healthy population of this species. The individuals were found to be carrying chytrid and we suggest that this was the proximal cause of mortality. Monitoring was conducted across Sydney Olympic Park between 1998 and 2005. In a small group of ponds in 1999, …

Germination Responses Of A Dry Sclerophyll Forest Soil-Stored Seedbank To Fire Related Cues, Trent D. Penman, D Binns, R Allen, R Shiels, S Plummer

Faculty of Science - Papers (Archive)

Fire is an integral component of many ecosystems worldwide. Many plant species require fire-related cues, primarily heat and smoke, to trigger germination. Despite the importance of this process, the responses of many Australian species to these cues are unknown. Without this knowledge fire management strategies may be developed that are inappropriate for individual species and vegetation communities. In this study we examined the responses of a dry sclerophyll forest seed bank to heat and smoke germination cues. Analysis was possible for 48 taxa within the soil seedbank with 34 of these showing a response to one or both of the …

Spatial Ecology Of The Giant Burrowing Frog (Heleioporus Australiacus): Implications For Conservation Prescriptions, Trent D. Penman, F Lemckert, M J Mahony

Faculty of Science - Papers (Archive)

Management of threatened anurans requires an understanding of a species’ behaviour and habitat requirements in both the breeding and non-breeding environments. The giant burrowing frog (Heleioporus australiacus) is a threatened species in south-eastern Australia. Little is known about its habitat requirements, creating difficulties in developing management strategies for the species.Weradio-tracked 33 individual H. australiacus in order to determine their habitat use and behaviour. Data from 33 frogs followed for between 5 and 599 days show that individuals spend little time near (<15 m) their breeding sites (mean 4.7 days for males and 6.3 days for females annually). Most time is spent in distinct non-breeding activity areas 20–250m from the breeding sites. Activity areas of females were further from the breeding site (mean 143 m) than those of males (mean 99 m), but were not significantly different in size (overall mean 500m2; males 553m2; females 307m2). Within activity areas, each frog used 1–14 burrows repeatedly, which weterm home burrows. Existing prescriptions are inappropriate for this species and we propose protection of key populations in the landscape as a more appropriate means of protecting this species.

Dendrimer Hydrazides As Multivalent Transient Inter-Cellular Linkers, D Zhao, S-M Ong, Zhilian Yue, Z Jiang, Y-C Toh, M A. Khan, J Shi, C H Tan, J Chen, H Yu

Faculty of Science - Papers (Archive)

Three-dimensional (3D) multi-cellular aggregates (MCAs), as a model scaffold-free tissue construct, are useful for engineering cell-dense and matrix-poor tissues for repair and regeneration applications. To facilitate rapid MCA formation with high degrees of linker consistency and performance, we synthesized a class of dendrimer hydrazides with 8, 16 and 32 arms that can react with the aldehyde on the modified cell surfaces to form MCAs. DAB-AM-16 hydrazide with 32 arms demonstrated the best cell aggregation ability as compared to the dendrimer hydrazides with fewer arms, facilitating MCA formation at lower linker concentrations, minimizing cytotoxicity. Characterization of the MCAs formed with 2 …

Fluorescence Intensity And Lifetime Imaging Of Free And Micellar-Encapsulated Doxorubicin In Living Cells, X Dai, Zhilian Yue, M E Eccleston, J Swartling, N K H Slater, C F Kaminski

Faculty of Science - Papers (Archive)

Frequency domain fluorescence lifetime imaging microscopy (FLIM) has been used in combination with laser scanning confocal microscopy to study the cellular uptake behavior of the antitumor drug doxorubicin (DOX) and micellar-encapsulated DOX (PLyAd-DOX). The endocytosis uptake process of PLyAd-DOX was monitored over 72 hours using confocal microscopy, with a maximum fluorescence recorded at incubation periods around 24 hours. The micellar structure was not found to release the encapsulated DOX during the time course of imaging. FLIM revealed single lifetime distributions of PLyAd-DOX during accumulation in the cytoplasm. The free DOX in contrast was observed both in the cytoplasm and the …

Geometrical And Structural Parameterization Of Forest Canopy Radiative Transfer By Lidar Measurements, Lucia Yanez-Rausell, Lucie Homolova, Zbynek Malenovky, Michael E. Schaepman

Faculty of Science, Medicine and Health - Papers: part A

A forest canopy is a complex system with a highly structural multi-scale architecture. Physical based radiative transfer (RT) modelling has been shown to be an effective tool for retrieval of vegetation canopy biochemical/physical characteristics from optical remote sensing data. A high spatial resolution RT through a forest canopy requires several geometrical and structural parameters of trees and understory to be specified with an appropriate accuracy. Following attributes on forest canopy are required: i) basic tree allometric parameters (i.e., tree height, stem diameter and length, crown length and projection,simplified crown shape, etc.),ii)parameters describing distribution of green biomass (foliage) (e.g., leaf area …

Towards Remote Sensing Of Vegetation Processes, Alexander Ac, Julie Olejnickova, Kumud Bandhu Mishra, Zbynek Malenovky, Jan Hanus, Martin Trtilek, Ladislav Nedbal, Michal Marek

Faculty of Science, Medicine and Health - Papers: part A

The latest advances in imaging spectroscopy of vegetation enabled remote sensing (RS) of plant reflected or emitted signals associated with photosynthetic processes as the photoprotective transformation of xanthophyll pigments or the chlorophyll fluorescence (Chl-F). A potential future European Space Agency (ESA) satellite mission FLEX is expected to sense, apart from other parameters, so-called steady-state chlorophyll fluorescence (Chl-FS) signal, which may be potentially used for monitoring of photosynthesis (vegetation canopy carbon assimilation rate). Nevertheless, geometric complexity of plant canopies and signal disturbing atmospheric factors require a proper approach for scaling the information of a single leaf optical properties up to the …

Nearshore Wave Environments Around A Sandy Cay On A Platform Reef, Torres Strait, Australia, Colin D. Woodroffe, Bongkoch Samosorn

Faculty of Science - Papers (Archive)

Waves are the primary factor affecting reef-island morphology. This study examines spatial and temporal variations of wave characteristics in the nearshore around Warraber Island, a sandy cay on a platform reef in Torres Strait Australia, based on field measurements during the predominant southeasterly wind season. Water pressure was recorded simultaneously, and transformed to water surface wave spectra, at a location close to the reef edge and across the nearshore at different locations around the island. Wave environments off the reef were estimated based on wave characteristics measured at the reef-edge location and found to be primarily dominated by sea. Low …

Antimycobacterial Activity Of Cinnamate-Based Esters Of The Triterpenes Betulinic, Oleanolic And Ursolic Acids, Tanud Tanachatchairatana, John B. Bremner, Ratchanaporn Chokchaisiri, Apichart Suksamrarn

Faculty of Science - Papers (Archive)

Betulinic acid, oleanolic acid and ursolic acid have been modified at the C-3 position to cinnamate-based esters and in vitro antimycobacterial activity against Mycobacterium tuberculosis H₃₇Ra has been determined. The results indicated that modification of the parent structures of betulinic acid, oleanolic acid and ursolic acid to the p-coumarate and, in the case of the latter two triterpenes, the ferulate ester analogues resulted in high antimycobacterial activity. Structure–activity relationships within the lupane, oleanane and ursane analogues and between these triterpenes are discussed.

Validation Of No2 And No From The Atmospheric Chemistry Experiment (Ace), Nicholas B. Jones, David W. Griffith, M Wolff, L Llewellyn, T Blumenstock, Christopher Mcelroy, M Hopfner, T Kerzenmacher, I Kramer, K Strong, Cassandra Haley, J R. Taylor, Thorsten Warneke, D Murtagh, E Dupuy, V Catoire, N Huret, C Brogniez, G L. Manney, C Piccolo, C Randall, C Tetard, M Lopez-Puertas, James Drummond, C Boone, B Funke, M Schneider, S Mikuteit, G P. Stiller, K A. Walker, P Bernath, O Schrems, P Raspollini, C Mclinden, S Brohede, M Toohey, M Ridolfi, J Dodion, F Vanhellemont, R L. Batchelor, J P. Burrows, J Kar, L K. Amekudzi, S Melo, F Goutail, C Bramstedt, D G. Dufour, M Silicani, J M. Zawodny, A Richter, G Berthet, F Nichitiu, J-P Pommereau, C Nowlan, D Fussen, J Zou, Irwin S. Pakula, Justus Notholt

Faculty of Science - Papers (Archive)

Vertical profiles of NO2 and NO have been obtained from solar occultation measurements by the Atmospheric Chemistry Experiment (ACE), using an infrared Fourier Transform Spectrometer (ACE-FTS) and (for NO2) an ultraviolet-visible-near-infrared spectrometer, MAESTRO (Measurement of Aerosol Extinction in the Stratosphere and Troposphere Retrieved by Occultation). In this paper, the quality of the ACE-FTS version 2.2 NO2 and NO and the MAESTRO version 1.2 NO2 data are assessed using other solar occultation measurements

(HALOE, SAGE II, SAGEIII, POAMIII, SCIAMACHY), stellar occultation measurements (GOMOS), limb measurements (MIPAS, OSIRIS), nadir measurements (SCIAMACHY), balloon-borne measurements (SPIRALE, SAOZ) and ground-based measurements (UV-VIS, FTIR). Time differences …

Environmental Effects Of Ozone Depletion And Its Interactions With Climate Change: Progress Report, 2008, S. R. Wilson, C Ballare, L Bjorn, M Caldwell, A Andrady, P Aucamp, A Bais, Keith R. Solomon, Xiaoyan Tang, G Kulandaivelu, J Longstreth, D P. Hader, R C. Worrest, D J. Erickson, J C. Van Der Leun, A H. Teramura, H Redhwi, Richard L. Mckenzie, H D. Kumar, Y Takizawa, F R. Gruijl, R C. Smith, A Torikai, R G. Zepp, A P. Cullen, M Norval, B Sulzberger, Nigel Paul, J R. Bornman, Mohammad Ilyas

Faculty of Science - Papers (Archive)

After the enthusiastic celebration of the 20th Anniversary of the Montreal Protocol on Substances that Deplete the Ozone Layer in 2007, the work for the proctection of the ozone layer continues. The Environmental Effects Assessment Panel is one of the three expert panels within the Montreal Protocol.

Ozone Induced Dissociation: Elucidation Of Double Bond Position Within Mass-Selected Lipid Ions, Michael C. Thomas, Todd W. Mitchell, David G. Harman, Jane M. Deeley, Jessica R. Nealon, Stephen J. Blanksby

Faculty of Science - Papers (Archive)

Ions formed from lipids during electrospray ionization of crude lipid extracts have been mass-selected within a quadrupole linear ion trap mass spectrometer and allowed to react with ozone vapor. Gas-phase ion−molecule reactions between unsaturated lipid ions and ozone are found to yield two primary product ions for each carbon−carbon double bond within the molecule. The mass-to-charge ratios of these chemically induced fragments are diagnostic of the position of unsaturation within the precursor ion. This novel analytical technique, dubbed ozone-induced dissociation (OzID), can be applied both in series and in parallel with conventional collision-induced dissociation (CID) to provide near-complete structural assignment …

Nutrient Enrichment Affects Recruitment Of Oysters And Barnacles In A Mangrove Forest, Todd E. Minchinton, Louise A. Mckenzie

Faculty of Science - Papers (Archive)

We tested the hypothesis that nutrient enrichment affects recruitment of the oyster Saccostrea glomerataand the barnacle Hexaminius popeiana, which are dominant occupiers of space on tree trunks in temperate mangrove forests in New South Wales, Australia. We measured recruitment on artificial settlement plates at high and low intertidal levels under ambient conditions and where we manipulated nutrient levels by adding fertiliser to the water column for 2 mo. To determine whether nutrients influenced temporal patterns of settlement and early mortality of larvae, we quantified recruitment for 2 sampling intervals: on plates that were replaced 4 times at 2 …

The Proofreading Exonuclease Subunit E Of Escherichia Coli Dna Polymerase Iii Is Tethered To The Polymerase Subunit A Via A Flexible Linker, Kiyoshi Ozawa, Slobodan Jergic, Ah-Young Park, Nicholas E. Dixon, Gottfried Otting

Faculty of Science - Papers (Archive)

Escherichia coli DNA polymerase III holoenzyme is composed of 10 different subunits linked by noncovalent interactions. The polymerase activity resides in the α-subunit. The ε-subunit, which contains the proofreading exonuclease site within its N-terminal 185 residues, binds to α via a segment of 57 additional C-terminal residues, and also to θ, whose function is less well defined. The present study shows that θ greatly enhances the solubility of ε during cell-free synthesis. In addition, synthesis of ε in the presence of θ and α resulted in a soluble ternary complex that could readily be purified and analyzed by …

Validation Of Ace-Fts N2o Measurements, K Strong, M Wolff, T Kerzenmacher, K A. Walker, Nicholas B. Jones, David W. Griffith, E Mahieu, S Wood, M De Maziere, P Demoulin, T Blumenstock, J Jin, J Hannigan, M Coffey, M Hopfner, P Duchatelet, J Mellqvist, A Strandberg, J R. Taylor, Thorsten Warneke, J Urban, D Murtagh, E Dupuy, V Catoire, C Piccolo, C Robert, C Senten, C Tetard, K W. Jucks, C Boone, N Glatthor, M Schneider, S Mikuteit, G P. Stiller, P Bernath, O Schrems, H Kuellmann, P Raspollini, A Lambert, J Mcconnell, J Kittippurath, K Semeniuk, M Toohey, M Ridolfi, Justus Notholt

Faculty of Science - Papers (Archive)

The Atmospheric Chemistry Experiment (ACE), also known as SCISAT, was launched on 12 August 2003,carrying two instruments that measure vertical profiles of atmospheric constituents using the solar occultation technique.One of these instruments, the ACE Fourier Transform Spectrometer (ACE-FTS), is measuring volume mixing ratio profiles of nitrous oxide (N2O) from the upper troposphere to the lower mesosphere. In this study, the quality of the ACE-FTS version 2.2 N2O data is assessed rough comparisons with coincident measurements made by other satellite, balloon-borne, aircraft, and ground-based instruments.These consist of vertical profile comparisons with the SMR, MLS, and MIPAS satellite instruments, multiple aircraft flights …

Mechanisms Of Thermoregulation In Plants, Jennifer R. Watling, Nicole Grant, Rebecca E. Miller, Sharon A. Robinson

Faculty of Science - Papers (Archive)

Endothermic heating of floral tissues and even thermoregulation is known to occur in a number of plant species across a wide taxonomic range. The mechanisms by which flowers heat, however, are only just beginning to be understood, and even less is known about how heating is regulated in response to changes in ambient temperature. We have recently demonstrated that the alternative pathway of respiration, in which the alternative oxidase (AOX) rather than cytochrome C (COX) acts as terminal electron acceptor, is responsible for heat generation in one thermoregulating species, the sacred lotus (Nelumbo nucifera). In the March issue of the …

Fabrication Of Chemical Sensors Using Inkjet Printing And Application To Gas Detection, Karl H. Crowley, Aoife Morrin, Malcolm R. Smyth, Anthony J. Killard, Roderick Shepherd, Marc In Het Panhuis, Gordon G. Wallace

Faculty of Science - Papers (Archive)

This work describes the fabrication of gas sensors using inkjet printing. Sensors were constructed by building up a film of sensing material, such as polyaniline, from aqueous nanoparticulate dispersions. These films were printed over patterned silver interdigitated array designs for the purposes of conductimetric analysis. Unlike screen printing or lithography, inkjet printing does not require stencils or masks, therefore allowing rapid design and prototyping. For this study, polyaniline and modified polyaniline sensors were inkjet printed and assessed for the purposes of gas sensing applications, specifically hydrogen sulfide monitoring.

Distribution And Sources Of Organic Carbon, Nitrogen And Their Isotopic Signatures In Sediments From The Ayeyarwady (Irrawaddy) Continental Shelf, Northern Andaman Sea, V Ramaswamy, Birgit Gaye, P V. Shirodkar, P S. Rao, Allan Chivas, David J. Wheeler, Swe Thwin

Faculty of Science - Papers (Archive)

Total organic carbon (TOC), total nitrogen (TN) and their δ¹³C and δ¹⁵N values were determined from 110 sediment samples from the Ayeyarwady (Irrawaddy) continental shelf, northern Andaman Sea to decipher the concentration and source of organic matter. Comparatively higher TOC and TN concentrations are found in the inner-shelf mud belt, and on the continental slope sediments, whereas the outer-shelf sediments, composed mostly of relict sands, are low in TOC. The TOC contents are positively correlated with the abundance of fine-grained sediments. The TOC:TN ratios and δ¹³C and δ¹⁵N values show low variability …

Reactions Of The Hydroperoxide Anion With Dimethyl Methylphosphonate In An Ion Trap Mass Spectrometer: Evidence For A Gas Phase A-Effect, Andrew M Mcanoy, Martin Paine, Stephen J. Blanksby

Faculty of Science - Papers (Archive)

The gas phase degradation reactions of the chemical warfare agent (CWA) simulant, dimethyl methylphosphonate (DMMP), with the hydroperoxide anion (HOO^–) were investigated using a modified quadrupole ion trap mass spectrometer. The HOO^– anion reacts readily with neutral DMMP forming two significant product ions at m/z 109 and m/z 123. The major reaction pathways correspond to (i) the nucleophilic substitution at carbon to form [CH₃P(O)(OCH₃)O]^– (m/z 109) in a highly exothermic process and (ii) exothermic proton transfer. The branching ratios of the two reaction pathways, 89% and 11% respectively, indicate that the …

Inkjet Printing: A Viable Tool For Processing Polymer Carbon Nanotube Composites, Marc In Het Panhuis, William R. Small

Faculty of Science - Papers (Archive)

The inkjet processing of water dispersable polymer carbon nanotube composite materials is reported. Single printed layers displayed good optical transparency, sheet resistance, and conductivity. It is demonstrated that an alcohol sensor based on a single printed layer of polymer carbon nanotube composite could operate at a lower voltage compared to a sensor based on a single printed layer of the polymer.

Validation Of Ace-Fts V2.2 Methane Profiles From The Upper Troposphere To Lower Mesosphere, M De Maziere, C Vigouroux, P F. Bernath, P Baron, T Blumenstock, C Boone, C Brogniez, V Catoire, M Coffey, P Duchatelet, David W. Griffith, J Hannigan, Y Kasai, I Kramer, Nicholas B. Jones, E Mahieu, G L. Manney, C Piccolo, C Randall, C Robert, C Senten, K Strong, J R. Taylor, C Tetard, K A. Walker, S Wood

Faculty of Science - Papers (Archive)

The ACE-FTS (Atmospheric Chemistry Experiment Fourier Transform Spectrometer) solar occultation instrument that was launched onboard the Canadian SCISAT-1 satellite in August 2003 is measuring vertical profiles from the upper troposphere to the lower mesosphere for a large number of atmospheric constituents. Methane is one of the key species. The version v2.2 data of the ACE-FTS CH4 data have been compared to correlative satellite, balloon-borne and ground-based Fourier transform infrared remote sensing data to assess their quality. The comparison results indicate that the accuracy of the data is within 10% in the upper troposphere lower stratosphere, and within 25% in the …

Scaling The Rural: Reflections On Rural Cultural Studies, Christopher R. Gibson, Andrew W. Gorman-Murray, Kate Darian-Smith

Faculty of Science - Papers (Archive)

How can cultural analysis be brought to bear on the rural? This central question for rural cultural studies prompts our exploration of how the rural has been delineated and interpreted in the developed West, as a departure for thinking about new intellectual approaches to rurality that span spaces, times and academic disciplines. In this paper we adopt a broad schema, discussing insights from rural studies, cultural geography and history. As Michael Woods ( Rural Geography ) has handily pointed out, 'rural' is

one of those curious words which everyone thinks they know what it means, but which is actually very …

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Evaluation Of A Low Cost Wireless Chemical Sensor Network For Environmental Monitoring, Jer Hayes, Stephen Beirne, King-Tong Lau, Dermot Diamond

Faculty of Science - Papers (Archive)

We present work on the development and testing of a low-cost wireless chemical sensor network (WCSN) for monitoring irritant/toxic gases in the environment. The WCSN used in this work takes advantage of recent advances in low power wireless communication platforms and uses colorimetric sensors to detect the presence of certain target gases. This sensor network adopts a star configuration and performs one way RF communications from individual sensor nodes to the base-station. Each node in the network is composed of a multiple sensor platform that measures light intensity, temperature and motion. The light sensor was used as the chemical sensing …

Applying Seed Germination Studies In Fire Management For Biodiversity Conservation In South-Eastern Australia., Tony D. Auld, Mark K.J Ooi

Faculty of Science - Papers (Archive)

We examine the patterns of germination response to fire in the fire-prone flora of the Sydney basin, south-eastern Australia, using examples from several decades of research. The flora shows a strong response to fire-related germination cues. Most species show an interaction between heat and smoke, a number respond only to heat, whilst a few are likely to respond only to smoke. Many recruit in the first 12 months after fire and show no obvious seasonal patterns of recruitment, whilst several species have a strong seasonal germination requirement, even in this essentially aseasonal rainfall region. Key challenges remaining include designing future …