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Article
Open AccessImpact of pre-existing depression and food insecurity on the trajectory of depressive symptomatology during the COVID-19 pandemic outbreak in South Africa: A panel analysis of nationally representative South African data
We investigated the trajectory of depressive symptoms (“depression”) from the start of the COVID-19 pandemic in South Africa (March 2020) until 2021, between individuals with and without pre-pandemic depressio...
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Article
Gene flow connects key leopard (Panthera pardus) populations despite habitat fragmentation and persecution
The leopard (Panthera pardus) is facing the threat of continued population decline across its range. In order to inform more effective conservation management programs, genetic information is needed from leopard ...
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Article
Potential drivers of samango monkey (Cercopithecus albogularis) population subdivision in a highly fragmented mountain landscape in northern South Africa
Forests affected by fragmentation are at risk of losing their primate populations over the long term. The impact of fragmentation on primate populations has been studied in several places in Africa, Asia and S...
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Article
Open AccessIndependent evolution of intermediate bill widths in a seabird clade
Interspecific introgression can occur between species that evolve rapidly within an adaptive radiation. Pachyptila petrels differ in bill size and are characterised by incomplete reproductive isolation, leading t...
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Article
Open AccessMap** 123 million neonatal, infant and child deaths between 2000 and 2017
Since 2000, many countries have achieved considerable success in improving child survival, but localized progress remains unclear. To inform efforts towards United Nations Sustainable Development Goal 3.2—to e...
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Article
Early Pleistocene enamel proteome from Dmanisi resolves Stephanorhinus phylogeny
The sequencing of ancient DNA has enabled the reconstruction of speciation, migration and admixture events for extinct taxa1. However, the irreversible post-mortem degradation2 of ancient DNA has so far limited i...
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Article
Open AccessDoes genetic structure reflect differences in non-breeding movements? A case study in small, highly mobile seabirds
In seabirds, the extent of population genetic and phylogeographic structure varies extensively among species. Genetic structure is lacking in some species, but present in others despite the absence of obvious ...
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Article
Open AccessExtinctions, genetic erosion and conservation options for the black rhinoceros (Diceros bicornis)
The black rhinoceros is again on the verge of extinction due to unsustainable poaching in its native range. Despite a wide historic distribution, the black rhinoceros was traditionally thought of as depauperat...
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Helicobacter pylori: Genetics, Recombination, Population Structure, and Human Migrations
Humans and their stomach bacterium Helicobacter pylori share a coevolutionary relationship that spans at least the last 100,000 years and quite possibly even longer. Population and evolutionary genetic research h...
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Article
Sex biases in kin shoaling and dispersal in a cichlid fish
Animal dispersal is associated with diverse costs and benefits that vary among individuals based on phenotype and ecological conditions. For example, females may disperse when males benefit more from defending...
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Article
Genetic structure of the black rhinoceros (Diceros bicornis) in south-eastern Africa
Despite an on-going struggle to conserve the endangered black rhinoceros (Diceros bicornis) since the 1980s, huge capital investment and several genetic surveys, the level of genetic structure and connectivity am...
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Article
Open AccessFemales tend to prefer genetically similar mates in an island population of house sparrows
It is often proposed that females should select genetically dissimilar mates to maximize offspring genetic diversity and avoid inbreeding. Several recent studies have provided mixed evidence, however, and in s...
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Article
Open AccessAge-related differences in the cloacal microbiota of a wild bird species
Gastrointestinal bacteria play a central role in the health of animals. The bacteria that individuals acquire as they age may therefore have profound consequences for their future fitness. However, changes in ...
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Article
Open AccessThe high Andes, gene flow and a stable hybrid zone shape the genetic structure of a wide-ranging South American parrot
While the gene flow in some organisms is strongly affected by physical barriers and geographical distance, other highly mobile species are able to overcome such constraints. In southern South America, the Ande...
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Article
Analysis of mitochondrial DNA data reveals non-monophyly in the bushbuck (Tragelaphus scriptus) complex
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Article
An African origin for the intimate association between humans and Helicobacter pylori
More than half of all humans are infected by the gut bacterium Helicobacter pylori, which can cause peptic ulcers and is a risk factor for stomach cancer. A major study of genetic variation in H. pylori isolates ...
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Article
Population structuring in mountain zebras (Equus zebra): The molecular consequences of divergent demographic histories
The endangered mountain zebra (Equus zebra) is endemic to the semi-arid inhospitable mountainous escarpments of southern Africa. The species is divided taxonomically into two geographically separated subspecies, ...
