Social and Behavioral Sciences Commons^™

Consumption Of Anthocyanin-Rich Cherry Juice For 12 Weeks Improves Memory And Cognition In Older Adults With Mild-To-Moderate Dementia, Katherine Caldwell, Karen E. Charlton, Steven J. Roodenrys, Marijka Batterham, Jan M. Potter, Victoria Traynor, Hayley Gilbert, Olivia Morgan, Rachelle Richards

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

Purpose Dietary flavonoids, including anthocyanins, may positively influence cognition and may be beneficial for the prevention and treatment of dementia. We aimed to assess whether daily consumption of anthocyanin-rich cherry juice changed cognitive function in older adults with dementia. Blood pressure and anti-inflammatory effects were examined as secondary outcomes. Methods A 12-week randomised controlled trial assessed cognitive outcomes in older adults (+70 year) with mild-to-moderate dementia (n = 49) after consumption of 200 ml/day of either a cherry juice or a control juice with negligible anthocyanin content. Blood pressure and inflammatory markers (CRP and IL-6) were measured at 6 and …

Pleistocene Shell Tools From Lake Mungo Lunette, Australia: Identification And Interpretation Drawing On Experimental Archaeology, Erica Weston, Katherine A. Szabo, Nicola Stern

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

Three freshwater mussel shell tools recovered from the Lake Mungo lunette, in semi-arid south-eastern Australia with bracketing age estimates of 40-30 ka, and a possible fourth tool with bracketing age estimates of 50-40 ka, are described. An experimental approach, combined with detailed structural and taphonomic analysis of the shell establishes the presence of both deliberate cultural modification and wear traces from use on the mussel fragments. The characterization of Australian Pleistocene stone artefacts as being simple and unchanging is steadily being challenged through recent studies of Pleistocene assemblages from Lake Mungo and elsewhere, and these early shell tools reinforce the …

Computational Reproducibility In Archaeological Research: Basic Principles And A Case Study Of Their Implementation, Ben Marwick

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

The use of computers and complex software is pervasive in archaeology, yet their role in the analytical pipeline is rarely exposed for other researchers to inspect or reuse. This limits the progress of archaeology because researchers cannot easily reproduce each other's work to verify or extend it. Four general principles of reproducible research that have emerged in other fields are presented. An archaeological case study is described that shows how each principle can be implemented using freely available software. The costs and benefits of implementing reproducible research are assessed. The primary benefit, of sharing data in particular, is increased impact …

The Influence Of Funding Models On Collaboration In Australian General Practice, Susan Mcinnes, Kathleen Peters, Andrew D. Bonney, Elizabeth J. Halcomb

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

Despite more nurses working in Australian general practice, there has been limited investigation exploring ways that general practitioners and registered nurses work together to deliver clinical care. However, it has been postulated that the small business structure, common in Australian general practices, might influence collaboration between these two groups of health professionals. This paper presents one theme from a larger qualitative study. Eight general practitioners and fourteen registered nurses working in general practice participated in semistructured face-to-face interviews between February and May 2015. Naturalistic inquiry was adopted to elicit and explore the narrative accounts of participants about working together in …

A Qualitative Study Of Collaboration In General Practice: Understanding The General Practice Nurse's Role, Susan Mcinnes, Kathleen Peters, Andrew D. Bonney, Elizabeth J. Halcomb

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

Aims and objectives: To explore the nature of collaboration between registered nurses and general practitioners in Australian general practice.

Background: There is international recognition that collaboration between health professionals can improve care coordination, enhance health outcomes, optimise the work environment and reduce healthcare costs. However, effective collaboration requires a clear understanding of each team member's role.

Design: A qualitative approach guided by Naturalistic Inquiry was used to elicit and interpret participant narratives.

Methods: Eight general practitioners and fourteen registered nurses working in general practice were purposefully recruited. Data were collected via individual, semi-structured face-to-face interviews during February to May 2015. …

Relationship Between Sodium And Potassium Intake And Blood Pressure In A Sample Of Overweight Adults, Rhoda Ndanuko, Linda C. Tapsell, Karen E. Charlton, Elizabeth Neale, Katrina M. O'Donnell, Marijka Batterham

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

Objective: The aim of this study was to examine the relationship between sodium and potassium intakes and blood pressure (BP) in a clinical sample.

Methods: Secondary analysis of baseline data from 328 participants (mean age: 43.6 ± 8 y, mean body mass index [BMI]: 32.4 ± 4.2 kg/m², mean systolic BP [SBP]/diastolic BP [DBP]: 124.9 ± 14.5/73.3 ± 9.9 mm Hg) of the 12-mo HealthTrack randomized controlled weight loss trial was conducted. Resting BP and 24-h urine sodium and potassium were measured. Dietary intake was evaluated with 4-d food records and self-reported diet histories.

Results: Urinary sodium was …

Deep-Sea Observations At Hydrocarbon Drilling Locations: Contributions From The Serpent Project After 120 Field Visits, Andrew Gates, Mark Benfield, David Booth, Ashley Fowler, Danielle Skropeta, Daniel O. B. Jones

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

The SERPENT Project has been running for over ten years. In this time scientists from universities and research institutions have made more than 120 visits to oil rigs, drill ships and survey vessels operated by 16 oil companies, in order to work with the industry's Remotely Operated Vehicles (ROV). Visits have taken place in Europe, North and South America, Africa and Australasia at water depths from 100 m to nearly 3000 m. The project has directly produced >40 peer reviewed publications and data from the project's >2600 entry online image and video archive have been used in many others. The …

Investigation Of The Microbial Communities Colonizing Prepainted Steel Used For Roofing And Walling, Tran T. Huynh, Ili Jamil, Nicole Pianegonda, Stephen J. Blanksby, Philip J. Barker, Michael J. Manefield, Scott A. Rice

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

Microbial colonization of prepainted steel, commonly used in roofing applications, impacts their aesthetics, durability, and functionality. Understanding the relevant organisms and the mechanisms by which colonization occurs would provide valuable information that can be subsequently used to design fouling prevention strategies. Here, next-generation sequencing and microbial community finger printing (T-RFLP) were used to study the community composition of microbes colonizing prepainted steel roofing materials at Burrawang, Australia and Kapar, Malaysia over a 52-week period. Community diversity was low and was dominated by Bacillus spp., cyanobacteria, actinobacteria, Cladosporium sp., Epicoccum nigrum, and Teratosphaeriaceae sp. Cultivation-based methods isolated approximately 20 different …

Manufactured Home Villages In Australia - A Melting Pot Of Chronic Disease?, Karin Robinson, Abhijeet Ghosh, Elizabeth J. Halcomb

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

Manufactured home villages (MHVs) are an increasingly popular housing option for older Australians. This paper reports a cross-sectional survey that sought to describe the health status and health service access of MHV residents. The survey tool comprised demographic and health status items, primary healthcare access perceptions and the World Health Organization Quality of Life tool (WHOQOL-BREF). One-hundred-eighty-six MHV residents from regional NSW completed the survey. Hypertension (54.8%) and arthritis (46.5%) were the most prevalent chronic diseases reported. Overall, respondents expressed a high level of satisfaction with the sense of safety and security (82.8%), neighbours (69.4%) and the overall location of …

Tropospheric Water Vapour Isotopologue Data (H216O, H218O, And Hd16O) As Obtained From Ndacc/Ftir Solar Absorption Spectra, Sabine Barthlott, Matthias Schneider, Frank Hase, Thomas Blumenstock, Matthaus Kiel, Darko Dubravica, Omaira García, Eliezer Sepúlveda, Gizaw Mengistu Tsidu, Samuel Takele Kenea, Michel Grutter, Eddy F. Plaza-Medina, Wolfgang Stremme, Kimberly Strong, Dan Weaver, Mathias Palm, Thorsten Warneke, Justus Notholt, Emmanuel Mahieu, Christian Servais, Nicholas B. Jones, David W. T Griffith, D Smale, John Robinson

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

We report on the ground-based FTIR (Fourier transform infrared) tropospheric water vapour isotopologue remote sensing data that have been recently made available via the database of NDACC (Network for the Detection of Atmospheric Composition Change; ftp://ftp.cpc.ncep.noaa.gov/ndacc/MUSICA/) and via doi:10.5281/zenodo.48902. Currently, data are available for 12 globally distributed stations. They have been centrally retrieved and quality-filtered in the framework of the MUSICA project (MUlti-platform remote Sensing of Isotopologues for investigating the Cycle of Atmospheric water). We explain particularities of retrieving the water vapour isotopologue state (vertical distribution of H2¹⁶O, H2¹⁸O, and HD¹⁶O) and reveal …

An Exemplar Of Naturalistic Inquiry In General Practice Research, Susan Mcinnes, Kathleen Peters, Andrew D. Bonney, Elizabeth J. Halcomb

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

Background Before beginning any research project, novice researchers must consider which methodological approach will best address their research questions. The paucity of literature describing a practical application of naturalistic inquiry adds to the difficulty they may experience.

Aim To provide a practical example of how naturalistic inquiry was applied to a qualitative study exploring collaboration between registered nurses and general practitioners working in Australian general practice.

Discussion Naturalistic inquiry is not without its critics and limitations. However, by applying the axioms and operational characteristics of naturalistic inquiry, the authors captured a detailed 'snapshot' of collaboration in general practice in the …

Geoarchaeological Research In The Humid Tropics: A Global Perspective, Mike W. Morley, Paul Goldberg

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

Geoarchaeological research is now commonly undertaken as an integral component of archaeological investigations across much of the world. However, in humid tropical regions there is a relative shortfall of this Earth-Science approach to understanding archaeological records. In these regions, where hot and humid conditions prevail for significant parts of the year, sedimentological records are prone to high levels of diagenesis, bioturbation and weathering. This means that understanding and quantifying archaeological site formation processes can be very challenging because we may have not have sufficient existing data with which to decipher the stratigraphic (and microstratigraphic) features recorded in these sequences. In …

Adaptations To Sea Level Change And Transitions To Agriculture At Khao Toh Chong Rockshelter, Peninsular Thailand, Ben Marwick, Hannah G. Van Vlack, Cyler Conrad, Rasmi Shoocongdej, Cholawit Thongcharoenchaikit, Seungki Kwak

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

This study reports on an analysis of human adaptations to sea level changes in the tropical monsoonal environment of Peninsula Thailand. We excavated Khao Toh Chong rockshelter in Krabi and recorded archaeological deposits spanning the last 13,000 years. A suite of geoarchaeological methods suggest largely uninterrupted deposition, against a backdrop of geological data that show major changes in sea levels. Although there is a small assemblage of mostly undiagnostic ceramics and stone artefacts, there are some distinct changes in stone artefact technology and ceramic fabric. There is a substantial faunal assemblage, with changes in both the mammalian and shellfish taxa …

Eof-Based Regression Algorithm For The Fast Retrieval Of Atmospheric Co2 Total Column Amount From The Gosat Observations, Andrey Bril, Shamil Maksyutov, Dmitry Belikov, Sergey Oshchepkov, Yukio Yoshida, Nicholas M. Deutscher, David W. T Griffith, Frank Hase, Rigel Kivi, Isamu Morino, Voltaire A. Velazco

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

This paper presents a novel retrieval algorithm for the rapid retrieval of the carbon dioxide total column amounts from high resolution spectra in the short wave infrared (SWIR) range observations by the Greenhouse gases Observing Satellite (GOSAT). The algorithm performs EOF (Empirical Orthogonal Function)-based decomposition of the measured spectral radiance and derives the relationship of limited number of the decomposition coefficients in terms of the principal components with target gas amount and a priori data such as airmass, surface pressure, etc. The regression formulae for retrieving target gas amounts are derived using training sets of collocated GOSAT and ground-based observations. …

3d Printing Of Transparent And Conductive Heterogeneous Hydrogel-Elastomer Systems, Kevin Tian, Jinhye Bae, Shannon Bakarich, C H. Yang, Reece Gately, Geoffrey M. Spinks, Marc In Het Panhuis, Zhigang Suo, Joost Vlassak

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

A hydrogel-dielectric elastomer system, polyacrylamide and poly(dimethylsiloxane) (PDMS), is adapted for extrusion printing for integrated device fabrication. A lithium-chloride-containing hydrogel printing ink is developed and printed onto treated PDMS with no visible signs of delamination and geometrically scaling resistance under moderate uniaxial tension and fatigue. A variety of designs are demonstrated, including a resistive strain gauge and an ionic cable.

Geochemical Assessment Of Trace Element Pollution In Surface Sediments From The Georges River, Southern Sydney, Australia, Yasir M. Alyazichi, Brian G. Jones, Errol J. Mclean, Joel Pease, Heidi K. Brown

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

Measurement of elevated trace elements is an important component of environmental assessment and management of estuarine marine sediments in systems adjacent to concentrated human activity. The present study surveys the estuarine sediments in selected tributary bays, creeks, and the upper segments of the Georges River system, NSW, Australia, which flows into the Tasman Sea through Botany Bay. A total of 146 surface sediment samples were analysed by X-ray fluorescence. Potential pollution of sediments was evaluated using potential load index, modified degree of contamination, and potential ecological risk index. The spatial distribution of trace elements varies between sites. Variable sources of …

Soil Methane Oxidation In Both Dry And Wet Temperate Eucalypt Forests Shows A Near-Identical Relationship With Soil Air-Filled Porosity, Benedikt J. Fest, Nina Hinko-Najera, Tim Wardlaw, David W. T Griffith, Stephen J. Livesley, Stefan K. Arndt

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

Well-drained, aerated soils are important sinks for atmospheric methane (CH₄) via the process of CH₄ oxidation by methane-oxidising bacteria (MOB). This terrestrial CH₄ sink may contribute towards climate change mitigation, but the impact of changing soil moisture and temperature regimes on CH4 uptake is not well understood in all ecosystems. Soils in temperate forest ecosystems are the greatest terrestrial CH₄ sink globally. Under predicted climate change scenarios, temperate eucalypt forests in south-eastern Australia are predicted to experience rapid and extreme changes in rainfall patterns, temperatures and wild fires. To investigate the influence of environmental drivers …

Moving Beyond Presence And Absence When Examining Changes In Species Distributions, Michael B. Ashcroft, Diana H. King, Ben Raymond, Johanna Turnbull, Jane Wasley, Sharon A. Robinson

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

Species distributions are often simplified to binary representations of the ranges where they are present and absent. It is then common to look for changes in these ranges as indicators of the effects of climate change, the expansion or control of invasive species or the impact of human land use changes. We argue that there are inherent problems with this approach, and more emphasis should be placed on species relative abundance rather than just presence. The sampling effort required to be confident of absence is often impractical to achieve, and estimates of species range changes based on survey data are …

Goal Setting Among People Living With Mental Illness: A Qualitative Analysis Of Recovery Camp, Lorna Moxham, Ellie K. Taylor, Christopher F. Patterson, Dana J. Perlman, Renee M. Brighton, Tim Heffernan, Susan Sumskis

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

People living with mental illness (consumers) often experience difficulty in achieving life goals, particularly those important for their recovery. An innovative approach to address consumers' goals for recovery can be found in the form of therapeutic recreation (TR) initiatives. Recovery Camp is a five-day TR program, bringing together people with a serious mental illness, undergraduate health students, and staff members. This paper aims to examine the types of goals set by consumers in the context of Recovery Camp, and to what extent the self-identified goals were attained. The consumers (n = 27) were invited to set goals that they wished …

Inhibitors To Exercise And Health Promotion Programs For The Older Person With Diabetes, Rebekkah Middleton, Lorna Moxham, Dominique R. Parrish

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

Diabetes care incurs a high cost burden, and is one of the main geriatric syndromes along with its related complications. To effectively counter this, healthcare needs to be proactive in establishing exercise and health promotion programs that promote healthy and active ageing.

Is It My Job? The Role Of Rns In The Assessment And Identification Of Delirium In Hospitalized Older Adults: An Exploratory Qualitative Study, Miriam Coyle, Pippa Burns, Victoria Traynor

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

Delirium is characterized by acute and fluctuating cognitive decline, which is often missed in older adults who are assumed to be experiencing age-related changes or dementia. Delirium affects up to 50% of hospitalized older adults. The aim of the current study was to (a) explore current practices of RNs in assessing and identifying delirium in hospitalized older adults and (b) inform new educational initiatives. Qualitative methods were adopted using eight semi-structured group interviews with 24 RNs. Thematic analysis revealed a dichotomy in practice where RNs described delirium assessment and identification as (a) It's Not My Job, (b) It is …

Phytochemical Screening, Phenolic And Flavonoid Contents, Antioxidant And Cytotoxic Activities Of Graptophyllum Pictum (L.) Griff, Nadechanok Jiangseubchatveera, Saisunee Liawruangrath, Aphiwat Teerawutgulrag, Dammrong Santiarworn, Stephen G. Pyne, Boonsom Liawruangrath

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

The phytochemical screening of the leaves of Graptophyllum pictum (L.) Griff. was carried out using the standard procedures which revealed the presence of flavonoids, steroids, tannins, coumarins, saponins, anthraquinones, phenolics and sugars. In vitro antioxidant activity, total phenolic and total flavonoid contents of four different fractions from the ethanolic leave extract of G. pictum (L.) Griff. were determined using spectrophotometric methods. The ethyl acetate fraction showed the highest total phenolic content (102.57 ± 0.19 mg gallic acid equivalent/g) and the hexane fraction contained the highest flavonoid (28.21 ± 0.04 mg quercetin equivalent/g). The ethyl acetate fraction also exhibited the …

Global Land Mapping Of Satellite-Observed Co2 Total Columns Using Spatio-Temporal Geostatistics, Zhao-Cheng Zeng, Liping Lei, Kimberly Strong, Dylan B. A Jones, Lijie Guo, Min Liu, Feng Deng, Nicholas M. Deutscher, Manvendra K. Dubey, David W. T Griffith, Voltaire A. Velazco

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

This study presents an approach for generating a global land mapping dataset of the satellite measurements of CO₂ total column (XCO₂) using spatio-temporal geostatistics, which makes full use of the joint spatial and temporal dependencies between observations. The mapping approach considers the latitude-zonal seasonal cycles and spatio-temporal correlation structure of XCO₂, and obtains global land maps of XCO₂, with a spatial grid resolution of 1° latitude by 1° longitude and temporal resolution of 3 days. We evaluate the accuracy and uncertainty of the mapping dataset in the following three ways: (1) in cross-validation, …

Elemental And Mineralogical Analysis Of Marine And Coastal Sediments From Phra Thong Island, Thailand: Insights Into The Provenance Of Coastal Hazard Deposits, Dat Pham, Chris Gouramanis, Adam D. Switzer, Charles Rubin, Brian G. Jones, Kruawun Jankaew, Paul F. Carr

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

Sediment records left by coastal hazards (e.g. tsunami and/or storms) may shed light on the sedimentary and hydrodynamic processes happening during such events. Modern onshore and offshore sediment samples were compared with the 2004 Indian Ocean Tsunami, three palaeotsunami and a 2007 storm deposit from Phra Thong Island, Thailand, to determine provenance relationships between these coastal overwash deposits. Sedimentological and stratigraphic characteristics are generally inadequate to discriminate tsunami and storm deposits so a statistical approach (including cluster analysis, principal component analysis and discriminant function analysis) was used based on grain size, mineralogy and trace element geochemistry. The mineral content and …

Assessment Of Remote Sensing-Based Classification Methods For Change Detection Of Salt-Affected Areas (Biskra Area, Algeria), Gabriela M. Afrasinei, Maria T. Melis, Cristina Buttau, John M. Bradd, Claudio Arras, Giorgio Ghiglieri

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

In the Wadi Biskra arid and semiarid areas, sustainable development is restricted by land degradation processes such as secondary salinization of soils. Being an important highquality date production region of Algeria, this area needs continuous monitoring of desertification indicators, hence highly exposed to climate-related risks. Given the limited access to field data, appropriate methods were assessed for the identification and change detection of salt-affected areas, involving image interpretation and automated classifications employing Landsat imagery, ancillary and multisource ground truth data. First, a visual photointerpretation study of the land cover and land use classes was undergone according to acknowledged methodologies. Second, …

The Geoarchaeology Of Hominin Dispersals To And From Tropical Southeast Asia: A Review And Prognosis, Mike W. Morley

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

Tropical Southeast Asia is a critically important region for addressing the major questions and grand challenges that concern us today regarding Late Pleistocene hominin dispersals across the Old World. Geoarchaeological science is widely employed in many regions of the world to contextualise archaeological material and provide an environmental backdrop against which to explore archaeological narratives. However, in Southeast Asia there is an apparent lag in the routine use of this Earth-Science approach despite the abundance of archaeological sites important in explicating past hominin dispersals to and from the region. In this review of the state-of-the-art of geoarchaeological research in Southeast …

Hybrid Flavan-Flavanones From Friesodielsia Desmoides And Their Inhibitory Activities Against Nitric Oxide Production, Pornphimol Meesakul, Khanith Pudhom, Stephen G. Pyne, Surat Laphookhieo

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

The first phytochemical investigation of Friesodielsia desmoides leaves and twigs led to the isolation and identification of three new hybrid flavan-flavanones, friesodielsones A-C (1-3), together with 18 known compounds (4-21). The structures of compounds 1-3 were elucidated through intensive analysis of spectroscopic data and their absolute configurations at C-2 and C-4 were determined by a combination of ¹H NMR and CD spectroscopy. The configuration at C-2′′ is tentatively assigned as 2′′S based on biosynthesis considerations. Compounds 2 and 15 significantly inhibited NO production with IC₅₀ values of 10.21 ± 0.074 and 7.56 ± 0.087 μM, respectively, whereas compounds …

Allenylation And Propargylation Reactions Of Ketones, Aldehydes, Imines, And Iminium Ions Using Organoboronates And Related Derivatives, Thanaphat Thaima, Farzad Zamani, Christopher J. T Hyland, Stephen G. Pyne

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

Allenyl- and propargylboronates have emerged as versatile reagents to effect regioselective propargylation or allenylation reactions of aldehydes, ketones, imines, and iminium ions. These boron-­derived reagents have the ability to undergo transmetalation reactions with other metals (Ag, Cu, In, and Zn), often using only catalytic amounts of these metals, leading to more facile and highly regioselective reactions. Enantioselective organocatalyzed reactions have also been developed using, chiral diols, aminophenols, and phosphoric ­acids. This short review highlights recent developments in this area.

Dietary Carotenoid Supplementation Enhances The Cutaneous Bacterial Communities Of The Critically Endangered Southern Corroboree Frog (Pseudophryne Corroboree), Casey L. Edwards, Phillip G. Byrne, Peter Harlow, Aimee J. Silla

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

The rapid spread of infectious disease has resulted in the decline of animal populations globally. Amphibians support a diversity of microbial symbionts on their skin surface that help to inhibit pathogen colonisation and reduce disease susceptibility and virulence. These cutaneous microbial communities represent an important component of amphibian immune defence, however, very little is known about the environmental factors that influence the cutaneous microbiome. Here, we characterise the cutaneous bacterial communities of a captive colony of the critically endangered Australian southern corroboree frog, Pseudophyrne corroboree, and examine the effect of dietary carotenoid supplementation on bacterial abundance, species richness and community …

Do Dormancy-Breaking Temperature Thresholds Change As Seeds Age In The Soil Seed Bank?, Ganesha S. Liyanage, Mark K. J Ooi

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

In fire-prone ecosystems, many species regenerate after fire from persistent soil seed banks. Species with physically dormant (PY) seeds have dormancy broken by fire-related heat. The magnitude of post-fire recruitment, to predict response to varying fire severity, is commonly estimated by testing dormancy-breaking temperature thresholds of fresh PY seeds. However, seeds spend years in the soil during the inter-fire period, and determining whether dormancy-breaking thresholds change over time is essential to accurately predict population persistence. Germination of four south-eastern Australian PY species from the Fabaceae family (Acacia linifolia, Aotus ericoides, Bossiaea heterophylla and Viminaria juncea) were studied. Dormancy-breaking temperature thresholds …