Digital Commons Network^™

Invertivore Fish Predation Is An Overlooked Source Of Carbonate Sediment On A Turbid Coral Reef, Jake L. Nilsen, Nicola K. Browne, Kyle M. Morgan, Joshua L. Bonesso, Dylan Benson, Shannon Dee, Michael J. O’Leary, Lisa A. Kirkendale, Peter U. Middelfart, Michael V.W. Cuttler, Jennifer L. Mcilwain

Research outputs 2022 to 2026

The geomorphic stability of coral reef islands depends on a continued supply of biologically derived sediment from reefs. However, the ecological processes that produce detrital sediment remain poorly resolved. The role of fishes as sediment producers has largely focused on coral sand generated by parrotfishes (Labridae: Scarinae) in clear-water settings, while the contribution of other groups, such as durophagous invertivores, remains poorly understood. Here, we quantify the contribution of invertivores to carbonate sediments at an inshore reef in the Exmouth Gulf, Western Australia, by combining fish census data and dietary analysis, coupled with taphonomic and compositional analysis of benthic sediments. …

Knowledge, Intentions And Attitudes Towards Osteoporosis And Other Health Conditions Among Older Australians, Phuong Dung Lam, Satvinder S. Dhaliwal, Christina M. Pollard, Jonine M. Jancey, Richard L. Prince, Deborah A. Kerr

Research outputs 2022 to 2026

Background: Osteoporosis burden is underdiagnosed and undertreated. While increasing community awareness and education are recognised priorities, research on how older adults view osteoporosis is limited. The aim was to assess osteoporosis-related knowledge, intentions and attitudes in relation to other health conditions in Australian adults aged 50 years and older.

Methods: A validated online questionnaire, developed with an expert panel, was administered to 1432 healthy volunteers, (64.3 ± 9.5 years). The questionnaire assessed knowledge of osteoporosis risk factors, attitudes and intentions. Multivariable logistic regression identified factors associated with low knowledge.

Results: Knowledge score across six topics was 29.5 ± 14.5 (100 …

Living On Display: Reciprocal Gazes, Everyday Encounters, And The Politics Of Visibility In The Sunshine Coast Tourism Community, Madura Thiwanka Pathirana, Noel Scott

Research outputs 2022 to 2026

This community case study analyses the production, negotiation, and contestation of reciprocal gazes within everyday settings, particularly focusing on contemporary lifestyle tourism destinations, and the examination of the Sunshine Coast, Australia. Based on 48 in-depth interviews with tourists and locals, this case study looks at the politics of visibility that are part of host-guest relations in everyday encounters at the beach, cafe, marketplace, and online-mediated market. Intersecting with critical tourism studies, and tourism studies on the traveler, host, and reciprocal gaze, this study focuses on residents' experiences of being observed, judged, and photographed and the impacts of their experiences on …

Load-Settlement Behaviour Of Tailings Dam Foundation Strengthened Using The Wraparound Geosynthetic Reinforcement Technique, Francis Otieno, Sanjay Kumar Shukla

Research outputs 2022 to 2026

This paper presents a numerical investigation of the load–settlement behaviour of a geosynthetic-reinforced tailings foundation comprised of gold tailings, subjected to the weight of a tailings dam embankment. The study considered varying conditions, including the horizontal and vertical components of the wraparound reinforcement, reinforcement burial depth, and shear strength parameters of the foundation material. A particular focus of this study is to investigate the effect of reinforcement wraparound ends on the settlement behaviour of the foundation using commercially available finite element (FE) software. The reinforcement is a single-layer biaxial woven geotextile, with and without wraparound ends, at varying depths from …

Making Room For ‘Feelings’: What's At Stake For The Theory Of Practice Architectures?, George Variyan, Brad Gobby

Research outputs 2022 to 2026

This paper responds to Thelin, K. [2024. What about feelings? Elaboration on and consideration of the theoretical construct of emotions in practice and practice architectures. International Journal of Leadership in Education, 1–14] intriguing proposal that the theory of practice architectures (hereafter TPA) would benefit from an augmentation to its oft-repeated analytical mantra of ‘sayings, doings and relatings’ by adding the notion of feelings. Thelin's work is motivated by the increasing realisation amongst adherents that TPA has thus far been relatively silent on how emotions mediate practice. As such, there are ongoing efforts to think through the place of emotions in …

Mental Health Impacts Of Anti-Trans Stigma On Transgender People In Australia: A Mixed-Methods Study, Sav Zwickl, Sasha Bailey, Rin Chan, Shalem Y. Leemaqz, Joel Murray, Stevie Lane, Foster Skewis, Julian Grace, Eli Ward-Smith, Tomi Ruggles, Ada S. Cheung

Research outputs 2022 to 2026

Background: Anti-trans stigma has escalated globally, yet there is limited empirical evidence examining its mental health impacts on trans populations.

Methods: In a May 2024 mixed-methods cross-sectional online survey, trans people aged ≥16 years living in Australia reported the frequency of seven anti-trans stigma experiences in the previous month, including exposure to anti-trans remarks in the news media or online; personal experience of online bullying, harassment or threats; having thought about, seen or heard about anti-trans rhetoric by Australian politicians and high-profile individuals; or anti-trans rallies; or police violence; or international anti-trans legislation and violence. Generalized linear models examined associations …

Multi-Scale Sensor-Aware Variational Autoencoders For Adaptive Iot Security: Integrating Drift Calibration And Cyberattack Detection, Md Kamal Hossain, Iftekhar Ahmad, Daryoush Habibi

Research outputs 2022 to 2026

Existing approaches to Industrial Internet of Things (IoT) anomaly detection treat sensor drift calibration and cyberattack detection as separate problems, overlooking their strong interdependence and the compound failure modes that arise when drift dynamics are exploited by stealthy adversaries. Industrial Internet of IoT sensor networks therefore require a unified framework that jointly models both phenomena. This paper proposes the first unified multi-scale sensor-aware variational autoencoder (MS-VAE) framework that jointly models sensor drift and malicious activity within shared latent representations, enabling integrated calibration and security monitoring. The framework introduces three key components: (i) a multi-scale latent architecture that captures short-term anomalies …

Music Teacher Wellbeing And Flourishing In Australian Primary Schools, Han Meng, Jason Goopy, Narelle Lemon

Research outputs 2022 to 2026

Teacher wellbeing is often generalised across roles, while a nuanced understanding of specialist teachers is often overlooked. This study used the positive psychology strengths-based PERMAH model to investigate factors that support wellbeing and flourishing of primary school music teachers in Australia and opportunities for growth. As part of a larger mixed-methods research project, data for this article were generated through interviews with 14 music teachers who deliver primary school class music and were analysed using reflexive thematic analysis. Findings indicated that music teacher wellbeing was promoted by joy derived from students’ learning, passion for teaching music, and recognition and support …

Optimal Two-Point Loading Strategy For Accurate Leg Press Force–Velocity Assessment, Takuya Nishioka, Shota Yamaguchi, Ayumi Yoshikawa, Naoki Ikeda, Daiki Hajima, Naoko Yabuno, Yasuhiro Kunita, Yuta Hashimoto, Anna Aoki, Miina Takahashi, Kazunori Nosaka, Takayuki Inami

Research outputs 2022 to 2026

Accurate assessment of an individual force–velocity (F–V) profile is essential for prescribing targeted resistance training; however, F–V outcomes depend strongly on the testing method used. This study examined the concurrent validity of the F–V relationship in a horizontal leg press exercise by comparing two-point methods, which use pairs of different loads relative to body weight, with a multiple-point method using a wider range of loads. Sixteen men (mean ± SD, age: 20.0 ± 1.4 years, height: 172.4 ± 6.3 cm, body mass: 69.2 ± 7.6 kg) performed maximal-effort horizontal dynamic leg press actions on a device equipped with pneumatic artificial …

Pain In People With Dementia Is A Significant Contributor To Increased Professional Caregiver Burden: Results Of An Observation Study, Kreshnik Hoti, Ipsit Vahia, Paola Chivers, Jeffery Hughes

Research outputs 2022 to 2026

Aim: To investigate the association between the presence of neuropsychological symptoms, professional caregiver burden and pain intensity.

Methods: Eleven neuropsychiatric symptoms reportedly associated with caregiver burden which are included within the PainChek® pain assessment tool were identified: aggressiveness, inappropriate behavior, distressed, verbally offensive, confusion, restlessness, pacing and wandering, crying, screaming, altered sleep and resisting care. A caregiver burden score based on binary scoring of the presence of these indicators was calculated (summative score range from 0 to 11). Generalized estimating equations were used to evaluate the relationships between (1) pain score and sum of caregiver indicators present and (2) pain …

Post Activation Performance Enhancement Effects On Countermovement Jumps In Men And Women, Gabriel Felipe Arantes Bertochi, Márcio Fernando Tasinafo Júnior, Leonardo Lima, Kazunori Nosaka, Enrico Fuini Puggina

Research outputs 2022 to 2026

The present study investigated the post-activation performance enhancement (PAPE) effects of six different conditioning activities on countermovement jump (CMJ) height and compared the PAPE effects between sexes. We recruited 18 male and 17 female participants (age: 24.6 ± 3.7 y, height: 1.71 ± 0.10 m, body mass: 75.7 ± 16.1 kg) with at least one year of resistance exercise experience. They performed a familiarization session in which the one-repetition maximum back squat (1-repetition maximum back squat: 134 ± 32 kg; 1- repetition maximum back squat/body mass: 1.8 ± 0.4) was assessed. This was followed by six visits for six different …

Protomix: Unified Prototype Learning For Semantic Change Detection In Remote Sensing, Hengzhi Chen, Kun Hu, Patrick Filippi, Wei Xiang, Thomas Francis Bishop, Zhiyong Wang

Research outputs 2022 to 2026

As an emerging topic, semantic change detection (SCD) in remote sensing aims to both identify the locations of changes before and after events and determine the land cover (LC) classes of changed regions. While deep learning has demonstrated its great potential for SCD, the following two fundamental challenges remain: large variations among the same LC class as well as close similarity between different LC classes, and the severe underutilization of massive unchanged regions, which dominate remote sensing scenes but lack detailed semantic annotations. To address these issues, we propose a novel prototype learning framework for SCD, namely ProtoMix, by leveraging …

Restricting Outdoor Advertising Of Unhealthy Food: Feasibility Of Using A Nutrition Classification System In Australia, Claire E. Pulker, Frith Klug, Georgina S.A. Trapp, Ainslie Sartori, Michelle Mcintosh, Alexia Bivoltsis, Catrina Mcstay, Clare Whitton

Research outputs 2022 to 2026

Objective: Exposure to food advertising is associated with consumption. Globally, most outdoor food advertisements feature unhealthy foods or beverages. As Australian local government areas (LGAs) begin developing restriction policies, the feasibility of applying nutrient-based Nutrition Classification Systems to outdoor advertising requires evaluation.

Design: Observational study on 1) types of food business advertisements outdoors and 2) availability of quantitative nutrition and/or ingredient information for featured products. 178 outdoor advertisements were analysed, from a 500m audit around schools in 16 stratified LGAs (2019), along with bus shelter audits in four LGAs (2022). Advertisements were categorised as featuring ‘branded packaged products’, ‘food service …

Rrto: A High-Performance Transparent Offloading System For Model Inference In Mobile Edge Computing, Zekai Sun, Xiuxian Guan, Zheng Lin, Yuhao Qing, Haoze Song, Zihan Fang, Zhe Chen, Fangming Liu, Heming Cui, Wei Ni, Jun Luo

Research outputs 2022 to 2026

Deploying Machine Learning (ML) applications on resource-constrained mobile devices remains challenging due to limited computational resources and poor platform compatibility. While Mobile Edge Computing (MEC) offers an offloading-based inference paradigm using GPU servers, existing approaches can be divided into non-transparent and transparent methods, with the former necessitating source-code modifications. Non-transparent offloading achieves high performance but requires intrusive code changes, limiting compatibility with diverse applications. Transparent offloading, in contrast, offers wide compatibility but introduces two challenges: performance degradation under MEC's low and fluctuating bandwidth, where per-operator remote procedure calls (RPCs) inflate end-to-end latency and energy consumption; and black-box logic reconstruction, which …

School Is No Longer A Lone Wolf Effort: Leadership Strategies For Inclusive, Community-Based School Cultures, Stuart Woodcock, Elias Avramidis, Umesh Sharma, Pearl Subban, Caroline Sahli Lozano, Harry Kullman, Tim Lorman, Sergej Wüthrich, Margarita Knickenberg

Research outputs 2022 to 2026

Based on the premise that the successful implementation of inclusion is largely dependent on the educators’ commitment to inclusive ideals, this study sought to examine the ways principals promote an inclusive vision and foster the development of associated practices in their school community. The study employed an exploratory qualitative research design, collecting data through semi-structured interviews and focus groups with 12 principals of highly-ranked inclusive schools from four countries: Australia, Italy, Switzerland, and Spain. In so doing, the emphasis was placed on the principals’ perspectives and practices that contribute to the development of an inclusive school culture. The iterative process …

Selective Human Resource Practices, Psychological Safety Climate And Employee Wellbeing, Yvonne Brunetto, Matthew J. Xerri, Geremy Farr-Wharton

Research outputs 2022 to 2026

Purpose: Engineers and healthcare professionals perceive higher levels of stress compared with the general population, suggesting that past human resource management (HRM) systems have failed to manage them appropriately. This study examines whether psychosocial safety climate (PSC) acts as a psychological conduit in translating HRM practices and mediating their impact on wellbeing using the common good HRM (CGHRM) and Conservation of Resources theoretical frameworks.

Design/methodology/approach: Data were collected using surveys collected at two points – one-month apart, and then analysed using structural equation modelling (Analysis of Moment Structures) to manipulate survey data from 300 matched employees.

Findings – The variance …

Single Joint Assessment Of Isometric Plantarflexor Force Characteristics Using Portable Force Plates: A Systematic Review Of Methods And Reliability, James Williams, Paul Comfort, Nicholas J. Ripley, Jack T. Fahey, Ritchie Barber, Christopher Bramah

Research outputs 2022 to 2026

The aim of this systematic review was to (1) identify differences in isometric force plate testing procedures for the ankle plantarflexors and (2) determine the reliability of existing methods to inform minimum reporting standards. A systematic search of PubMed, Web of Science, Google Scholar, MEDLINE and CINAHL was conducted from inception to 2025, for peer-reviewed studies using portable force plates to assess isometric plantarflexor force. PRISMA guidelines were followed. Two independent reviewers assessed methodological quality using the COSMIN Risk of Bias tool and Mixed Methods Appraisal Tool, with discrepancies resolved collaboratively. Twenty studies met the inclusion criteria, revealing methodological variations …

The Ecology Of Hope: Building Rainbows In Education Systems, Jennifer Achari

Research outputs 2022 to 2026

Hope is frequently invoked in education, yet rarely theorised. Where it has been theorised, it has been understood in two largely separate ways: as an individual psychological capacity, in the positive-psychology tradition and as a critical-emancipatory stance, in the pedagogy of hope. This article proposes a third: a theory, the ecology of hope, that locates hope not in the individual alone but in the relationship between a person and the systems that surround them. Bringing the cognitive psychology of hope into dialogue with ecological systems theory, the social-ecological account of resilience, and utopian methodology, in which a better society is …

The Evolution Of Match-Play In Major League Soccer From 2018 To 2023, Callum J. Mccaskie, Christopher Wing

Research outputs 2022 to 2026

Major League Soccer (MLS) has experienced significant growth since its establishment 30 years ago. However, no research has investigated the on-field performance trends. Thus, the purpose of this study was to examine the evolution of MLS match-play via technical and tactical key performance indicators, and investigate the differences between teams according to league finishing position. MLS on-field performance indicators were obtained across six seasons from open-source website FBref. Mean game values were collected from 21 match performance indicators for every MLS team over six seasons. Teams were also classified according to their league finishing position at the conclusion of each …

The Influence Of Self-Compassion On The Mental Health And Well-Being Of Women Experiencing Infertility: A Systematic Review, Shwikar Othman, Mitra Javanmard, Lauren Roberts, Lisa Conlon, Mary Steen

Research outputs 2022 to 2026

Infertility can cause significant distress to women, increasing the risk of anxiety and depression. This systematic review examined the influence of self-compassion interventions on mental health and well-being among women experiencing infertility. The review was conducted in accordance with Joanna Briggs Institute (JBI) methodology and reported following PRISMA guideline. Databases searched included Medline, Embase, Ovid nursing database, Emcare, PsycINFO and Cochrane Library from inception to November 2024. Quality assessment was conducted using JBI critical appraisal tools. Title and abstract screening was conducted by three reviewers, and data extraction was performed independently by two reviewers. Sixteen studies met the inclusion criteria, …

The Role Of Physical Therapy Across The Transplant Trajectory In Allogeneic Hematopoietic Stem Cell Transplantation, A Systematic Review And Clinical Framework, Houssem Ben Jemia, Rebecca Catterina, Marialaura Calonghi, Maria Anna Dossena, Stefano Giuseppe Lazzarini, Francesco Bettariga, Michele Malagola, Enrico Morello

Research outputs 2022 to 2026

Allogeneic hematopoietic stem cell transplantation (allo-HSCT) increasingly involves older and medically complex patients, in whom impaired pulmonary function and high comorbidity burden adversely affect survival and long-term outcomes. Rehabilitation and exercise interventions are biologically plausible strategies to mitigate deconditioning along the transplant trajectory, but their role in allo-HSCT has not been systematically organized within a phase-specific clinical framework. A systematic review of randomized controlled trials (RCTs) was conducted according to Cochrane guidance and PRISMA 2020, with prospective registration in PROSPERO. PubMed, Embase, PEDro, Web of Science, CENTRAL and Scopus were searched from inception to early 2025, with an updated PubMed …

Towards The Acoustic Characterisation Of Ngilgi Cave's Amphitheatre Chamber In Western Australia, Mary Rapp, Manuj Yadav, John Bassett

Research outputs 2022 to 2026

Ngilgi Cave, Western Australia’s first show cave and a site of Wardandi custodianship for tens of thousands of years, has long been celebrated for its “remarkable acoustics”. This reputation is anchored in the early twentieth-century anecdote of Dame Nellie Melba singing in its Amphitheatre chamber. This paper presents a quantitative acoustic characterisation of that chamber using in situ measurements within a nominal 2500 m3 interconnected limestone volume with dense speleothem surfaces. Room acoustic parameters were measured as per ISO 3382–1 across four receiver positions spanning 1–15 m from the source. Spatially-averaged mid-frequency Reverberation Time was 1.2 s, Early Decay Time …

Trends And Indications For Cesarean Section In The Origins Birth Cohort, Kristjana Einarsdottir, Lisa Gibson, Sarah Whalan, Jacqueline Davis, Laurence Amy Payette, Ravisha Srinivasjois, Desiree T. Silva

Research outputs 2022 to 2026

Objective: Cesarean section (CS) rates have increased substantially in Australia, with particularly high use observed in private maternity care and for pre-labor CS. The aim of the present study was to describe the CS rates and the clinical indications for pre-labor CS in the ORIGINS birth cohort.

Methods: This study analyzed data from the ORIGINS birth cohort, a large birth cohort in Western Australia, including 9473 births occurring at Joondalup Health Campus between 2016 and 2024. Rates of CS and pre-labor CS were compared across study periods (2016–2020 and 2021–2024) and by facility type (public vs. private). Indications for pre-labor …

When Does The Peak Countermovement Jump Performance Occur? Mapping Peak-Trial Timing Across Six Clustered Repetitions, Karol Kruczek, Szymon Karpęcki, Tim Gabbett, Jason Lake, Michał Nowak

Research outputs 2022 to 2026

Force-plate countermovement jump (CMJ) testing is widely used to assess neuromuscular status, yet monitoring interpretation often relies on best-trial values from abbreviated protocols, potentially biasing conclusions when the session maximum occurs beyond the sampled attempts. We mapped peak-trial timing across a six-trial clustered (3 + 3) CMJ protocol for seven outcome and strategy force–time metrics, and tested whether this peak-trial pattern was preserved between personal best (PB) and typical state (TS) monitoring sessions, both defined using modified reactive strength index (mRSI) as the primary selection variable. Retrospective dual-force-plate data (1000 Hz; August 2020–December 2025) were analysed from 314 athletes who …

When The Panic Sets In: Ai-Proofing As Pedagogical Violence In Social Work Education, Norah Hosken, Susan Bailey

Research outputs 2022 to 2026

Universities’ rushed responses to generative Artificial Intelligence (AI) constitute pedagogical violence against students and educators in social work programs. Drawing on Matusov and Sullivan’s pedagogical violence framework and Bourdieu’s symbolic violence, we examine how institutional mandates to ‘AI-proof’ assessments contradict core social work values while inflicting systematic harm. AI-proofing policies impose time-limited assessments disadvantaging disabled students and those with caring responsibilities, deploy surveillance technologies that discriminate against non-native English speakers, demand unsustainable workload increases from burned-out educators, and dismantle scaffolded pedagogy aligned with how social workers learn to practise. Using collaborative autoethnography, we document our experiences across Australian universities and …

Young Motherhood In Crisis: Multidimensional Childcare Challenges In Accra’S Old Fadama And African Eleven Slums, Portia Nana Ama Brempong, Victus Gyambiby, Gladys Aboagye Asamoah, Kingsley Saa-Touh Mort, Margaret Mensah, Florence Akosua Agyemang, Abena Oforiwaa Ampomah

Research outputs 2022 to 2026

Background: Young mothers in urban slums face multifaceted challenges in raising their children due to poverty, limited access to basic services, and weak social support systems. However, limited qualitative research in Ghana has specifically examined their lived experiences within their ecological contexts.

Objectives: This study aimed to address these gaps by exploring the multidimensional challenges young mothers face in raising their children in the Old Fadama and African Eleven slums in Accra, Ghana.

Methods: A qualitative research design utilising Interpretative Phenomenological Analysis (IPA) was employed to explore the multidimensional challenges faced by young mothers in the Old Fadama and African …

Multi-Omics Integration Reveals Vaccine-Specific Molecular Signatures And Temporal Dynamics Of Covid-19 Immune Responses, Anne H. Klein, David J. Beale, Thao V. Nquyen, Jian-Wei Liu, Petrus Jansen Van Vuren, Nagendrakumar B. Singanallur, Carol Lee, Andrew C. Boomer, Jennifer A. Juno, Stephen J. Kent, Adam K. Wheatley, Gough G. Au, Seshadri S. Vasan, Laurence Wilson, Alexander J. Mcauley

Research outputs 2022 to 2026

Vaccination elicits systemic immune responses that extend beyond antibody and lymphocyte activation, engaging coordinated metabolic and lipid pathways that modulate immune function. Nevertheless, how systemic molecular responses differ across COVID-19 vaccine platforms, including closely related mRNA platforms, remains poorly understood. Here, we performed integrated plasma proteomic, lipidomic, and metabolomic profiling of 53 SARS-CoV-2–naïve adults vaccinated with Pfizer-BioNTech, Moderna, or AstraZeneca COVID-19 vaccines. Samples were analysed across multiple timepoints using differential analysis and DIABLO-based multi-omics integration. Our findings reveal distinct platform-associated multi-omic molecular signatures not captured by unsupervised analyses alone. Pfizer-BioNTech vaccination was associated with widespread increases in immunoglobulin and complement …

Fostering Relational Leadership Skills In Mining: The Signal Online Program, Arian Kunzelmann, Armaghan Shafaei, Esme Franken, Kate Blackwood, Tim Bentley, R. Xia, L. Deacon

Research outputs 2022 to 2026

Summary: Leaders play a critical role in shaping workplace well-being, respect, and mental health in mining. This study examined the relational leadership capabilities underpinning the SIGNal program and explored the contextual factors that influence leadership development and the application of learning in mining workplaces. The quantitative findings showed that supportive, inclusive, growth-oriented, and adaptive leadership behaviours tend to co-exist and are strongly associated with positive worker outcomes. Workers who perceived their leaders as highly relational reported substantially higher levels of job satisfaction, work engagement, well-being, and respect at work. The findings also highlighted the importance of organisational factors, with psychosocial …

Hooded Merganser (Lophodytes Cucullatus), B. H. Anderson, Ann Hodgson, Florida Ornithological Society

Family 01: Anatidae

“Hoodie” is not only a nickname given to a hooded sweatshirt, but to the exquisitely patterned Hooded Merganser by hunters and birders, alike. Mainly piscivores, mergansers differ from most other ducks by having a long, rather narrow bill, serrated along the edges to firmly secure the prey they capture while diving.

Mallard-Mottled Duck Hybrids (Anas Platyrhynchos X Anas Fulvigula Fulvigula), K. M. Mcbride, A. Auger, A. T. Fanning, Ann Hodgson, Florida Ornithological Society

Family 01: Anatidae

The Mallard complex of ducks is a suite of 14 closely related species found throughout the world whose genetics are just beginning to be understood. Within the complex, the wild-type mallard (Anas platyrhynchos) is the sole ancestor to most domesticated ducks.