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Environmental constraints shape growth plasticity, early maturation, and longevity in an endangered freshwater fishNARA Subscribed
The interaction between organisms and their environment strongly influence growth, longevity, and fitness, yet the roles of resource availability and predation remain poorly resolved for threatened freshwater fishes. This study investigates how environmental conditions shape growth, survival, and life-history traits in two spatially isolated populations of the endangered Macquarie perch ( Macquaria australasica ) inhabiting co...
In a world where habitats are degrading and the climate is warming and becoming unpredictable, biodiversity conservation efforts and funding remain grossly inadequate. As part of a multifaceted approach to halting extinctions, shifting from preserving small, remnant populations to a practice of genetically connecting populations that recreate larger and more diverse populations is expected to be beneficial. This harnesses key...
Remotely Sensed Fire Heterogeneity and Biomass Recovery Predicts Empirical Biodiversity ResponsesNARA Subscribed
Aim To compare field‐based evidence of plant and animal responses to fire with remotely sensed signals of fire heterogeneity and post‐fire biomass recovery. Location South‐eastern Australia; New South Wales. Time Period 2019–2022. Major Taxa Studied A total of 982 species of plants and animals, in eight taxonomic groups: amphibians, birds, fish, insects, mammals, molluscs, plants and reptiles. Methods We collated 545,223 plant...
Photorhabdus viridis sp. nov. Isolated from Heterorhabditis zealandica Entomopathogenic NematodesNARA Subscribed
A novel bacterial species, Photorhabdus viridis sp. nov., represented by strain Green T , isolated from Heterorhabditis zealandica MJ2C entomopathogenic nematodes, is described. Phylogenetic reconstructions using 16S rRNA gene sequences show that strain Green T is closely related to P. thracensis DSM 15199 T . The 16rRNA gene sequences of these two strains are 98.8% identical. Phylogenetic reconstructions using whole-genome se...
Contribution of invasive carp (Cyprinus carpio) to fish biomass in rivers of the Murray–Darling Basin, AustraliaNARA Subscribed
Following the introduction of the ‘Boolarra’ strain to Australia in the mid 1960’s, Common carp ( Cyprinus carpio ) rapidly spread in waterways across the Murray–Darling Basin (MDB) in southern-eastern Australia. A previous study of the population expansion based upon data up to the early 2000s suggested the carp population may have reached, and was fluctuating around, the ecosystem carrying capacity. It has been widely stated...
Factors influencing cranial variation between prehistoric Japanese forager populationsNARA Subscribed
Understanding the factors shaping human crania has long been a goal of biological anthropology, and climate, diet, and population history are three of the most well-established influences. The effects of these factors are, however, rarely compared within a single, variable population, limiting interpretations of their relative contribution to craniofacial form. Jomon prehistoric foragers inhabited Japan throughout its climatic...
Direct observations of the oceans acquired on oceanographic research ships operated across the international community support fundamental research into the many disciplines of ocean science and provide essential information for monitoring the health of the oceans. A comprehensive knowledge base is needed to support the responsible stewardship of the oceans with easy access to all data acquired globally. In the United States,...
Prolonging survival in good health is a fundamental societal goal. However, the leading determinants of disability-free survival in healthy older people have not been well established. Data from ASPREE, a bi-national placebo-controlled trial of aspirin with 4.7 years median follow-up, was analysed. At enrolment, participants were healthy and without prior cardiovascular events, dementia or persistent physical disability. Disab...
Given the ecological and economic importance of eastern boundary upwelling systems like the California Current System (CCS), their evolution under climate change is of considerable interest for resource management. However, the spatial resolution of global earth system models (ESMs) is typically too coarse to properly resolve coastal winds and upwelling dynamics that are key to structuring these ecosystems. Here we use a high-...
Copepods are among the most abundant marine metazoans and form a key link between marine primary producers, higher trophic levels, and carbon sequestration pathways. Climate change is projected to change surface ocean temperature by up to 4°C in the North Atlantic with many associated changes including slowing of the overturning circulation, areas of regional freshening, and increased salinity and reductions in nutrients avail...
Large Pelagic Fish Are Most Sensitive to Climate Change Despite Pelagification of Ocean Food WebsOA Marine
Global climate change is expected to impact ocean ecosystems through increases in temperature, decreases in pH and oxygen, increased stratification, with subsequent declines in primary productivity. These impacts propagate through the food chain leading to amplified effects on secondary producers and higher trophic levels. Similarly, climate change may disproportionately affect different species, with impacts depending on thei...
Toxicity of the pharmaceuticals finasteride and melengestrol acetate to benthic invertebratesNARA Subscribed
The toxicity of endocrinologically active pharmaceuticals finasteride (FIN) and melengestrol acetate (MGA) was assessed in freshwater mussels, including acute (48 h) aqueous tests with glochidia from Lampsilis siliquoidea , sub-chronic (14 days) sediment tests with gravid female Lampsilis fasciola , and chronic (28 days) sediment tests with juvenile L. siliquoidea , and in chronic (42 days) sediment tests with the amphipod Hya...