The cheetah (Acinonyx jubatus) has been described as a species with low levels of genetic variation. This has been suggested to be the consequence of a demographic bottleneck 10 000–12 000 years ago (ya) and also led to the assumption that only small genetic differences exist between the described subspecies. However, analysing mitochondrial DNA and microsatellites in cheetah samples from most of the historic range of the species we found relatively deep phylogeographic breaks between some of the investigated populations, and most of the methods assessed divergence time estimates predating the postulated bottleneck. Mitochondrial DNA monophyly and overall levels of genetic differentiation support the distinctiveness of Northern-East African cheetahs (Acinonyx jubatus soemmeringii). Moreover, combining archaeozoological and contemporary samples, we show that Asiatic cheetahs (Acinonyx jubatus venaticus) are unambiguously separated from African subspecies. Divergence time estimates from mitochondrial and nuclear data place the split between Asiatic and Southern African cheetahs (Acinonyx jubatus jubatus) at 32 000–67 000 ya using an average mammalian microsatellite mutation rate and at 4700–44 000 ya employing human microsatellite mutation rates. Cheetahs are vulnerable to extinction globally and critically endangered in their Asiatic range, where the last 70–110 individuals survive only in Iran. We demonstrate that these extant Iranian cheetahs are an autochthonous monophyletic population and the last representatives of the Asiatic subspecies A. j. venaticus. We advocate that conservation strategies should consider the uncovered independent evolutionary histories of Asiatic and African cheetahs, as well as among some African subspecies. This would facilitate the dual conservation priorities of maintaining locally adapted ecotypes and genetic diversity.
The lesser Egyptian jerboa, Jaculus jaculus, is the ideal jerboa species for use as a laboratory model system. As a member of the most derived clade of three-toed jerboas, it shows all of the specialized characteristics for bipedalism, including loss of the lateral digits and fusion and elongation of the metatarsals. It is a small rodent, weighing ∼55 g as an adult, and it does not hibernate through the winter as is common with many other jerboa species. It is the first Dipodoid rodent whose genome is to be sequenced, and multiple genomic resources are being generated. The jerboa has been notoriously difficult to breed in captivity with only a small number of zoos and private breeders achieving success. The Harvard University colony of 60 adult animals (half male/half female) has had 36 offspring born in captivity in one year. The jerboa colony at the Breeding Centre for Endangered Arabian Wildlife in Sharjah, UAE has been operating since 2007 and has had 180 live births. Here, we outline guidelines for successfully maintaining and breeding a colony of J. jaculus in a laboratory setting.
A Greater Spotetd Eagle Aquila clanga was rehabilited and released in the UAE. The bird was fitted with a solar-powered satellite transmitter and succesfully tracked from the Arabian Peninsula over Iran to Kazahstan and back to Pakistan.
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