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The persistence and range expansion of non-native invasive species is in part due to their genetic potential for adaptation in new environments, often associated with reduced competition or predation. The success of a non-native population can be dependent on the initial number of colonising individuals and their genetic diversity, either through the initial introduction or subsequently via multiple introductions across time a...
Intraspecific leaf trait variation mediates edge effects on litter decomposition rate in fragmented forestsNARA Subscribed
There is strong trait dependence in species‐level responses to environmental change and their cascading effects on ecosystem functioning. However, there is little understanding of whether intraspecific trait variation (ITV) can also be an important mechanism mediating environmental effects on ecosystem functioning. This is surprising, given that global change processes such as habitat fragmentation and the creation of forest e...
Understanding the historical context of biological invasions can improve weed management outcomes. In this study, we aim to identify the introduction pathway of bitou bush ( Chrysanthemoides monilifera subsp. rotundata ) into Australia and its biogeographical origin in southern Africa by combining multiple lines of evidence from genomic tools and historical documentation. Geographic structure of genomic diversity based on SNPs...
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...
Pinpointing Drivers of Extirpation in Sea Snakes: A Synthesis of Evidence From Ashmore ReefOA Marine
Over the past decade, vertebrate populations globally have experienced significant declines in distribution and abundance. Understanding the reasons behind these population declines is the first step in implementing appropriate management responses to improve conservation outcomes. Uncovering drivers of extirpation events after the fact, however, requires a careful forensic approach to prevent similar declines elsewhere. The o...
Invasion trajectory of alien trees: the role of introduction pathway and planting historyNARA Subscribed
Global change is driving a massive rearrangement of the world's biota. Trajectories of distributional shifts are shaped by species traits, the recipient environment and driving forces with many of the driving forces directly due to human activities. The relative importance of each in determining the distributions of introduced species is poorly understood. We consider 11 Australian Acacia species introduced to South Africa for...
Essential elements of discourse for advancing the modelling of species' current and potential distributionsNARA Subscribed
A recent review by Dormann et al . (2012, Journal of Biogeography , 39 , 2119–2131) has proposed that methods for the modelling of species distributions be considered as a continuum. We disagree with this thesis, and contend that attempting to present the diverse range of methods as a continuum is unhelpful and ultimately not convincing. It adds to the confusion about the strengths and weaknesses of the diversity of available...
The ability to ascribe native or alien status to species in a rapidly changing world underpins diverse research fields that overlap with global change and biological invasions via biodiversity. Current definitions generally link alien status to anthropogenic dispersal events, but this can create conflicts for active management and global change adaptation strategies, such as managed relocation and restoration ecology. Here we...
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