Mental Well-Being during COVID-19 : A Cross-Sectional Study of Fly-In Fly-Out Workers in the Mining Industry in Australia

Funding: This study was funded by the Mineral Resources Limited (Australia). Mineral Resources Limited provided AUD 200 shopping voucher to the winner of a raffle draw as reimbursement for study participation. Mineral Resources Limited played role in the data collection, interpretation of study findings, preparation and decision to submit this manuscript for publication but not in the design of the study and data analysis. The study was supported by Aberdeen-Curtin Alliance Curtin International Postgraduate Research Scholarship (CIPRS) in the writing of the manuscript. B.Y.-A.A. is a recipient of Aberdeen-Curtin Alliance PhD Curtin International Postgraduate Research Scholarship (CIPRS) and Research Stipend Scholarship. Acknowledgments: We express our profound gratitude to the Mineral Resources Limited, Australia for their support in advertising the study and allowing for us undertake this study among their workers. We also extend our appreciation to all the FIFO workers who took time to participate in this study.Peer reviewedPublisher PD

Hybrid weakness controlled by the dosage-dependent lethal (DL) gene system in common bean (Phaseolus vulgaris) is caused by a shoot-derived inhibitory signal leading to salicylic acid-asociated root death

Certain crosses of common bean (Phaseolus vulgaris) result in temperature-dependent hybrid weakness associated with a severe root phenotype. This is controlled by the interaction of the root- and shoot-expressed semidominant alleles dosage-dependent lethal 1 (DL1) and DL2, which communicate via long-distance signaling. Previously, apparent reciprocal effects on root growth and the restoration of normal root growth by exogenous sucrose led to the hypothesis that the dosage-dependent lethal (DL) system may control root–shoot carbon partitioning. Here, recombinant inbred lines were used to map the DL loci and physiological and biochemical analysis, including metabolite profiling, was used to gain new insights into the signaling interaction and the root phenotype. It is shown that the DL system does not control root–shoot carbon partitioning and that roots are unlikely to die from carbon starvation. Instead, root death likely occurs by defense-related programmed cell death, as indicated by salicylic acid accumulation. DL2-expressing cotyledons supply a potent inhibitory signal that is sufficient to cause such death in DL1-expressing roots. These data implicate the DL system in defense-related signaling and provide support for the recent hypothesis of defense-related autoimmunity as a potential isolating mechanism in plant speciation, in particular, setting a precedence for the potential roles of long-distance signaling and temperature dependence

Urban wildflower meadow planting for biodiversity, climate and society: An evaluation at King's College, Cambridge

Funder: Gatsby Charitable Foundation; doi: http://dx.doi.org/10.13039/501100000324Funder: King's College Cambridge, University of Cambridge; doi: http://dx.doi.org/10.13039/501100000648The biodiversity and climate crises are critical challenges of this century. Wildflower meadows in urban areas could provide important nature‐based solutions, addressing the biodiversity and climate crises jointly and benefitting society in the process. King's College Cambridge (England, UK) established a wildflower meadow over a portion of its iconic Back Lawn in 2019, replacing a fine lawn first laid in 1772. We used biodiversity surveys, Wilcoxon signed rank and ANOVA models to compare species richness, abundance and composition of plants, spiders, bugs, bats and nematodes supported by the meadow, and remaining lawn, over 3 years. We estimated the climate change impact of meadow vs lawn from maintenance emissions, soil carbon sequestration and reflectance effect. We surveyed members of the university to quantify the societal benefits of, and attitudes towards, increased meadow planting on the collegiate university estate. In spite of its small size (0.36 ha), the meadow supported approximately three times more plant species, three times more spider and bug species and individuals, and bats were recorded three times more often over the meadow than the remaining lawn. Terrestrial invertebrate biomass was 25 times higher in the meadow compared with the lawn. Fourteen species with conservation designations were recorded on the meadow (six for lawn), alongside meadow specialist species. Reduced maintenance and fertilising associated with meadow reduced emissions by an estimated 1.36 Mg CO2‐e per hectare per year compared with lawn. Relative reflectance increased by 25%–34% for meadow relative to lawn. Soil carbon stocks did not differ between meadow and lawn. Respondents thought meadows provided greater aesthetic, educational and mental wellbeing services than lawns. In open responses, lawns were associated with undesirable elitism and social exclusion (most colleges in Cambridge restrict lawn access to senior members of college), and respondents proved overwhelmingly in favour of meadow planting in place of lawn on the collegiate university estate. This study demonstrates the substantial benefits of small urban meadows for local biodiversity, cultural ecosystem services and climate change mitigation, supplied at lower cost than maintaining conventional lawn

Anatomical revision of the genus Merycopotamus (Artiodactyla ; Anthracotheriidae) : its significance for late Miocene mammal dispersal in Asia

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