The megadiverse haplochromine cichlid radiations of the East African lakes, famous examples of explosive speciation and adaptive radiation, are according to recent studies, introgressed by different riverine lineages. This study is based on the first comprehensive mitochondrial and nuclear DNA dataset from extensive sampling of riverine haplochromine cichlids. It includes species from the lower...

Monkeypox virus (MPXV) is endemic within Africa where it sporadically is reported to cause outbreaks of human disease. In 2003, an outbreak of human MPXV occurred in the US after the importation of infected African rodents. Since the eradication of smallpox (caused by an orthopoxvirus (OPXV) related to MPXV) and cessation of routine smallpox vaccination (with the live OPXV vaccinia), there is a...

A Grey parrot (Psittacus erithacus) that was able to quantify 6 item sets (including subsets of heterogeneous groups, e.g., blue blocks within groupings of blue and green blocks and balls) using English labels (I. M. Pepperberg, 1994a) was tested on comprehension of these labels, which is crucial for numerical competence (K. C. Fuson, 1988; see also record 1987-98811-000). He was, without train...

Delay of gratification, the ability to forgo an immediate reward to gain either better quality or quantity, has been used as a metric for temporal discounting, self-control, and the ability to plan for the future in both humans (particularly children) and nonhumans. The task involved can be parsed in several ways, such that the subjects can be required to wait, not only for a better or a larger...

We analyzed the distribution of branched tetraether membrane lipids derived from soil bacteria in a marine sediment record that was recovered close to the Congo River outflow, and the results enabled us to reconstruct large-scale continental temperature changes in tropical Africa that span the past 25,000 years. Tropical African temperatures gradually increased from approximately 21 degrees to ...

Parrots (Psittaciformes) are a diverse group of birds, which need urgent protection. However, many taxa from this order have an unresolved status, which makes their conservation difficult. One of species-rich parrot genus is Amazona, which is widely distributed in the New World. Here we describe a new Amazona form, which is endemic to the Yucatán Peninsula. This parrot is clearly separable from...

Parrots (Psittaciformes) are a diverse group of birds which need urgent protection. However, many taxa from this order have an unresolved status, which makes their conservation difficult. One species-rich parrot genus is Amazona, which is widely distributed in the New World. Here we describe a new Amazona form, which is endemic to the Yucatán Peninsula. This parrot is clearly separable from oth...

Ordinary applications struggle to benefit from distributed computing. Most applications are designed for the safe confines of a single workstation and are not prepared to encounter the new interfaces and failures that are endemic to distributed systems. To solve this problem, we present Parrot, an interposition agent that connects standard, unmodified applications to distributed systems. Parrot...

Sven Van Melkebeke. Dissimilar Coffee Frontiers. Mobilizing Labor and Land in the Lake Kivu Region, Congo Rwanda (1918–1960/62). [African History, Vol. 9.] Brill, Leiden [etc.] 2020. xiv, 335 pp. Ill. Maps. € 75.00; 91.00.) - Volume 67 Issue 3

Uganda is an East African country and, together with Burundi, Kenya, Rwanda and Tanzania, a member of the East African Community (EAC). It covers an area of 241,139 km2, which is roughly three-quarters the area of Germany or half that of Sweden. The population, registered as 30.2 million in 2006, is increasing, and reached 40 million at the end of 2009 according to Ugandan statistics. Uganda is...