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Plant Phylogenetic History, Not Diversity, Drives Insect Biodiversity Across South Africa's BiomesNARA Subscribed
Aim Insects provide essential ecosystem services, but there is a concern that insect abundance is in rapid decline. Identifying trends in insect biodiversity is challenging because we lack baseline data for most biogeographic regions, and most insect species remain undescribed. Here, we aim to report the first nationwide inventory of insect biodiversity in South Africa. Location Eleven National Botanical Gardens representing f...
Conspecific and interspecific cues mediate ecological impacts of existing and potential invasive ornamental cichlidsNARA Subscribed
The ornamental fish trade is one of the major pathways for freshwater fish invasions, with their co-occurrence increasingly common due to rising numbers of non-native species. This co-occurrence can yield ecological surprises through non-additive trophic effects, which can influence levels of predatory impacts. In freshwaters, biotic interactions are heavily mediated by waterborne chemical cues, which could potentially alter t...
The multi‐faceted threats of habitat degradation and biological invasions are increasing concerns for the integrity of freshwater ecosystems and their associated services globally. Removal of anthropogenic riverine barriers has gained momentum over the last three decades, motivated by the maintenance requirements of the aging infrastructure, while also functioning as a primary means of restoring river connectivity to promote e...
A substantial literature has developed on facultative endosymbionts of insects, often portrayed as having large effects on their hosts, ranging from mutualistic to parasitic. The aphid endosymbiont Regiella insecticola occurs naturally in Myzus persicae and has potential biocontrol applications. Here, we examined the effects of native Regiella in two clones of M. persicae from Australia collected two decades apart, to assess w...
Interpretable deep learning reveals spatiotemporal MRI features of brain aging that align with neurodegenerationNARA Subscribed
Cortical thinning and atrophy are hallmarks of brain aging that have been characterized using magnetic resonance imaging (MRI). Brain aging involves many neuroanatomic features whose effects on brain structure remain unexplored. To address this challenge, we trained interpretable deep neural networks (DNNs) to estimate brain age (BA) from T 1 -weighted ( T 1 w) MRI. By identifying MRI features unapparent to humans, DNNs can fi...
Top‐Down and Bottom‐Up Processes Jointly Explain Mesopredator Movement and Foraging EcologyNARA Subscribed
Prey availability and predation risk drive animal distribution, movement, and foraging ecology, yet studies rarely analyse multiple predator–prey levels together. Understanding how predators optimise risk–reward tradeoffs is important for species conservation and management, especially in systems facing extreme ecosystem change. We examined how top‐down (modelled polar bear habitat selection) and bottom‐up (modelled fish diver...