1 - 4 of 4
Number of results to display per page
Search Results
2. Small mammal inventory in the Lama forest reserve (south Benin), with new cytogenetical data
- Creator:
- Violaine , Nicolas, Gerbault-Seureau, Michèle , Delapre, Arnaud , and Bed'Hom, Bertrand
- Format:
- počítač and online zdroj
- Type:
- model:article and TEXT
- Subject:
- Dahomey Gap, karyotype, rodents, shrews, species inventory, and West Africa
- Language:
- English
- Description:
- The Lama forest is the largest natural forest in southern Benin, and one of the last remnant forests within the Dahomey Gap. It harbours several species of major importance in terms of conservation. Small mammals are known to represent more than 80% of the African mammalian species diversity but they have received little attention in Benin. In this article we present the results of the first terrestrial small mammal species inventory (murid rodents and shrews) in the Lama forest. In September and October 2007, we captured 280 small mammals belonging to 12 species, identified by morphological and genetic analysis. We also provide detailed cytogenetic data for six of the 12 captured species. For five of them, we compare our data with previously published karyotypes, and for the sixth one (Hylomyscus pamfi), the karyotype is published here for the first time. Two of the captured species are closed-forest specialists (Praomys misonnei, H. pamfi), and H. pamfi is endemic to the Dahomey Gap region. Our results are congruent with those obtained on other animal groups, and highlight the importance of the Lama forest for the conservation of the country's forest biodiversity.
- Rights:
- http://creativecommons.org/publicdomain/mark/1.0/ and policy:public
3. Two new species of Crocidura (Mammalia: Soricidae) from Ethiopia and updates on the Ethiopian shrew fauna
- Creator:
- Konečný, Adam, Hutterer, Rainer, Meheretu, Yonas, and Bryja, Josef
- Format:
- počítač and online zdroj
- Type:
- model:article and TEXT
- Subject:
- shrews, Crocidurinae, East Africa, taxonomy, phylogeny, diversity, and new records
- Language:
- English
- Description:
- We describe two new species of white-toothed shrews from south-western and central Ethiopia, based on recent collections and an application of morphological and genetic methods, Crocidura similiturba sp. nov. and Crocidura makeda sp. nov. Comparisons are provided with other Crocidura species known to occur in the country. Both new species are currently known only from the Ethiopian Highlands. Furthermore, we provide new geographical records and discuss biogeographical patterns in the country. New molecular data, even if based primarily on mitochondrial cytochrome b, suggests substantial divergence within afrotropical Suncus megalura, suggesting that the East African lineage might be considered separated at the species level – Suncus sorella (Thomas, 1897), stat. nov. Molecular data support a monophyly of the clade, grouping most Crocidura species endemic to Ethiopia (the East African subclade of the Old World clade), but also indicates additional colonisations of Ethiopian Plateau from East and Central Africa in the past. The remarkable number of endemics shows that Ethiopia is an important centre for the Crocidura radiation, as is the case for other groups of non-flying terrestrial vertebrates.
- Rights:
- http://creativecommons.org/publicdomain/mark/1.0/ and policy:public
4. Xenoma-like formations induced by Soricimyxum fegati (Myxosporea) in three species of shrews (Soricomorpha: Soricidae), including records of new hosts
- Creator:
- Dyková, Iva, Tyml, Tomáš, and Kostka, Martin
- Format:
- bez média and svazek
- Type:
- model:article and TEXT
- Subject:
- Soricimyxum fegati infections, xenoma-like formations, shrews, Sorex araneus, Sorex minutus, and Crocidura suaveolens
- Language:
- English
- Description:
- In South Bohemia, Czech Republic, 178 shrews, including 98 common shrews, Sorex araneus L., 70 pygmy shrews, Sorex minutus L., and 10 lesser white-toothed shrews, Crocidura suaveolens (Pallas), were examined for Soricimyxum fegati Prunescu, Prunescu, Pucek et Lom, 2007 infections, using squash preparations of unfixed tissues, histological sections and molecular methods. The infection was found in 51 (52%) S. araneus, 14 (20%) S. minutus and 1 (10%) C. suaveolens. The records of the latter two species extend host range of S. fegati. Lesions associated with S. fegati infections in the liver, the organ of specific localisation of the parasite, were found to be induced by proliferative stages migrating toward lumina of bile ducts. In other organs of these three host species, xenoma-like formations (XLFs) were found that severely injured blood vessels. XLFs contained presporogonic stages of S. fegati, whose species identity was evidenced using molecular methods.
- Rights:
- http://creativecommons.org/licenses/by-nc-sa/4.0/ and policy:public