53 research outputs found

    The mammals of Angola

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    Scientific investigations on the mammals of Angola started over 150 years ago, but information remains scarce and scattered, with only one recent published account. Here we provide a synthesis of the mammals of Angola based on a thorough survey of primary and grey literature, as well as recent unpublished records. We present a short history of mammal research, and provide brief information on each species known to occur in the country. Particular attention is given to endemic and near endemic species. We also provide a zoogeographic outline and information on the conservation of Angolan mammals. We found confirmed records for 291 native species, most of which from the orders Rodentia (85), Chiroptera (73), Carnivora (39), and Cetartiodactyla (33). There is a large number of endemic and near endemic species, most of which are rodents or bats. The large diversity of species is favoured by the wide range of habitats with contrasting environmental conditions, while endemism tends to be associated with unique physiographic settings such as the Angolan Escarpment. The mammal fauna of Angola includes 2 Critically Endangered, 2 Endangered, 11 Vulnerable, and 14 Near-Threatened species at the global scale. There are also 12 data deficient species, most of which are endemics or near endemics to the countryinfo:eu-repo/semantics/publishedVersio

    Reconciling Apparent Conflicts between Mitochondrial and Nuclear Phylogenies in African Elephants

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    Conservation strategies for African elephants would be advanced by resolution of conflicting claims that they comprise one, two, three or four taxonomic groups, and by development of genetic markers that establish more incisively the provenance of confiscated ivory. We addressed these related issues by genotyping 555 elephants from across Africa with microsatellite markers, developing a method to identify those loci most effective at geographic assignment of elephants (or their ivory), and conducting novel analyses of continent-wide datasets of mitochondrial DNA. Results showed that nuclear genetic diversity was partitioned into two clusters, corresponding to African forest elephants (99.5% Cluster-1) and African savanna elephants (99.4% Cluster-2). Hybrid individuals were rare. In a comparison of basal forest “F” and savanna “S” mtDNA clade distributions to nuclear DNA partitions, forest elephant nuclear genotypes occurred only in populations in which S clade mtDNA was absent, suggesting that nuclear partitioning corresponds to the presence or absence of S clade mtDNA. We reanalyzed African elephant mtDNA sequences from 81 locales spanning the continent and discovered that S clade mtDNA was completely absent among elephants at all 30 sampled tropical forest locales. The distribution of savanna nuclear DNA and S clade mtDNA corresponded closely to range boundaries traditionally ascribed to the savanna elephant species based on habitat and morphology. Further, a reanalysis of nuclear genetic assignment results suggested that West African elephants do not comprise a distinct third species. Finally, we show that some DNA markers will be more useful than others for determining the geographic origins of illegal ivory. These findings resolve the apparent incongruence between mtDNA and nuclear genetic patterns that has confounded the taxonomy of African elephants, affirm the limitations of using mtDNA patterns to infer elephant systematics or population structure, and strongly support the existence of two elephant species in Africa

    Otolemur badius, eine neue Art afrikanischer Halbaffen

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    Volume: 1905Start Page: 277End Page: 27

    Einige anscheinend neue Meerkatzen

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    Volume: 1905Start Page: 262End Page: 27

    Ueber rum\ue4nische S\ue4ugethiere

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    Volume: 1901Start Page: 220End Page: 23

    Die Verbreitung der Beuteltiere auf NeuGuinea mit einigen Bemerkungen \ufcber ihre Einteilung in Untergattungen

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    Volume: 8Start Page: 257End Page: 30

    Bericht über die Januarsitzung 1903

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    cber geographische Abarten des afrikanischen Elefanten

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    Volume: 1900Start Page: 189End Page: 19

    Merkw\ufcrdige Gorilla-Sch\ue4del aus Kamerun

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    Volume: 1905Start Page: 279End Page: 28

    cber eine kleine Sammlung von S\ue4ugethieren und Reptilien, welche Herr L. Conradt aus Usambara (Deutsch Ostafrika) heimgebracht hat

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    Volume: 1892Start Page: 101End Page: 11
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