International Journal of Biological and Chemical Sciences, 2014
ABSTRACT Le Parc National du Banco,forêt sempervirente à l’intérieure de la capitale économique d... more ABSTRACT Le Parc National du Banco,forêt sempervirente à l’intérieure de la capitale économique de la Côte d’ivoire a toujours constitué une curiosité. Dans la période du 11 avril 2013 au 19 avril 2013 nous avons effectué dans cette forêt un inventaire des mammifères. Les méthodes utilisées sont celles des transects linéaires pour les grands mammifères et la méthode de capture pour la plupart des petits mammifères. Nos résultats indiquent que, les grands mammifères rencontrés sont constitués de primates (Cercopithecus campbelli lowei, Cercopithecus petaurista et Pan troglodytes verus), d’ongulés (Tragelaphus scriptus, Philantomba maxwellii, et Neotragus pygmaeus) et de carnivores (Genetta tigrina, Crossarchus obscurus et Civettictis civetta). D’une manière générale, l’indice kilométrique d’abondance de ces groupes taxonomiques est faible (0,022 à 0,12). Le chimpanzé d’Afrique de l’Ouest (Pan troglodytes verus), espèce en danger selon l’Union pour la Conservation de la Nature existe encore dans cette forêt. Au niveau des petits mammifères plusieurs espèces de rongeurs, d’insectivores et de chiroptères ont été inventoriées lors de notre étude. Parmi ces espèces, la chauve-souris paillée (Eidolon helvum) et la Musaraigne de Wimmer (Crocidura wimmeri) sont en danger d’extinction selon l’UICN. Toutefois, la présence humaine à proximité du parc constitue une réelle menace pour son intégrité.Mots clés : Mammifères, chimpanzé, chauve-souris, insectivore.
ABSTRACT New bats were recorded from various habitats on the Guinean side of Mount Nimba during t... more ABSTRACT New bats were recorded from various habitats on the Guinean side of Mount Nimba during two surveys in 2008 and coupled with a cytotaxonomic survey. A total of 152 specimens comprising 15 species in 12 genera from five families were collected, of which 13 individuals were karyotyped. The most numerous species was Rhinolophus guineensis followed by four fruit bats (Epomops buettikoferi, Lissonycteris angolensis, Roussettus aegyptiacus, Nanonycteris veldkampii). We confirm the presence of Hipposideros lamottei in the mine adits at 1500 m as well as the exceptional diversity of this habitat. First standard karyotypes are provided for Epomops buettikoferi and Nanonycteris intermedia. We also document for the first time karyotypes for West African populations of Mops thersites, Lissonycteris angolensis and Roussettus aegyptiacus, and cytogenetical comparisons with the existing literature are provided. We add five new species to the list of Guinean Nimba and two to the whole Nimba list (including Liberian side), which now stands at 42 species. This confirms the importance of Mount Nimba as a hotspot of diversity and the necessity to protect it.
ABSTRACT This study investigated the small mammal community of the periurban Banco National Park ... more ABSTRACT This study investigated the small mammal community of the periurban Banco National Park (34 km(2)), Abidjan, Cote d'Ivoire, using identical numbers of Sherman and Longworth traps. We aimed to determine the diversity and distribution of rodents and shrews in three different habitats: primary forest, secondary forest and swamp. Using 5014 trap-nights, 91 individuals were captured that comprised seven rodent and four shrew species. The trapping success was significantly different for each species, i.e., the Longworth traps captured more soricids (31/36 shrews), whereas the Sherman traps captured more murids (37/55 mice). The most frequent species was Praomys cf. rostratus, followed by Crocidura buettikoferi, Hybomys trivirgatus and Crocidura jouvenetae. Indices of species richness (S) and diversity (H') were greatest in primary forest, followed by secondary forest and swamp. - Several expected species, such as Crocidura obscurior, were not found, whereas we captured four specimens of the critically endangered (IUCN 2012) Wimmer's shrew Crocidura wimmeri, a species that has vanished from its type locality, Adiopodoume. Therefore, Banco National Park represents an important sanctuary, not only for plants, birds and primates, but also for other small forest vertebrates.
Molecular phylogenetics and evolution, Oct 10, 2012
The tribe Myonycterini comprises five fruit bat species of the family Pteropodidae, which are end... more The tribe Myonycterini comprises five fruit bat species of the family Pteropodidae, which are endemic to tropical Africa. Previous studies have produced conflicting results about their interspecific relationships. Here, we performed a comparative phylogeographic analysis based on 148 complete cytochrome b gene sequences from the three species distributed in West Africa and Central Africa (Myonycteris torquata, Lissonycteris angolensis and Megaloglossus woermanni). In addition, we investigated phylogenetic relationships within ...
International Journal of Biological and Chemical Sciences, 2014
ABSTRACT Le Parc National du Banco,forêt sempervirente à l’intérieure de la capitale économique d... more ABSTRACT Le Parc National du Banco,forêt sempervirente à l’intérieure de la capitale économique de la Côte d’ivoire a toujours constitué une curiosité. Dans la période du 11 avril 2013 au 19 avril 2013 nous avons effectué dans cette forêt un inventaire des mammifères. Les méthodes utilisées sont celles des transects linéaires pour les grands mammifères et la méthode de capture pour la plupart des petits mammifères. Nos résultats indiquent que, les grands mammifères rencontrés sont constitués de primates (Cercopithecus campbelli lowei, Cercopithecus petaurista et Pan troglodytes verus), d’ongulés (Tragelaphus scriptus, Philantomba maxwellii, et Neotragus pygmaeus) et de carnivores (Genetta tigrina, Crossarchus obscurus et Civettictis civetta). D’une manière générale, l’indice kilométrique d’abondance de ces groupes taxonomiques est faible (0,022 à 0,12). Le chimpanzé d’Afrique de l’Ouest (Pan troglodytes verus), espèce en danger selon l’Union pour la Conservation de la Nature existe encore dans cette forêt. Au niveau des petits mammifères plusieurs espèces de rongeurs, d’insectivores et de chiroptères ont été inventoriées lors de notre étude. Parmi ces espèces, la chauve-souris paillée (Eidolon helvum) et la Musaraigne de Wimmer (Crocidura wimmeri) sont en danger d’extinction selon l’UICN. Toutefois, la présence humaine à proximité du parc constitue une réelle menace pour son intégrité.Mots clés : Mammifères, chimpanzé, chauve-souris, insectivore.
ABSTRACT New bats were recorded from various habitats on the Guinean side of Mount Nimba during t... more ABSTRACT New bats were recorded from various habitats on the Guinean side of Mount Nimba during two surveys in 2008 and coupled with a cytotaxonomic survey. A total of 152 specimens comprising 15 species in 12 genera from five families were collected, of which 13 individuals were karyotyped. The most numerous species was Rhinolophus guineensis followed by four fruit bats (Epomops buettikoferi, Lissonycteris angolensis, Roussettus aegyptiacus, Nanonycteris veldkampii). We confirm the presence of Hipposideros lamottei in the mine adits at 1500 m as well as the exceptional diversity of this habitat. First standard karyotypes are provided for Epomops buettikoferi and Nanonycteris intermedia. We also document for the first time karyotypes for West African populations of Mops thersites, Lissonycteris angolensis and Roussettus aegyptiacus, and cytogenetical comparisons with the existing literature are provided. We add five new species to the list of Guinean Nimba and two to the whole Nimba list (including Liberian side), which now stands at 42 species. This confirms the importance of Mount Nimba as a hotspot of diversity and the necessity to protect it.
ABSTRACT This study investigated the small mammal community of the periurban Banco National Park ... more ABSTRACT This study investigated the small mammal community of the periurban Banco National Park (34 km(2)), Abidjan, Cote d'Ivoire, using identical numbers of Sherman and Longworth traps. We aimed to determine the diversity and distribution of rodents and shrews in three different habitats: primary forest, secondary forest and swamp. Using 5014 trap-nights, 91 individuals were captured that comprised seven rodent and four shrew species. The trapping success was significantly different for each species, i.e., the Longworth traps captured more soricids (31/36 shrews), whereas the Sherman traps captured more murids (37/55 mice). The most frequent species was Praomys cf. rostratus, followed by Crocidura buettikoferi, Hybomys trivirgatus and Crocidura jouvenetae. Indices of species richness (S) and diversity (H') were greatest in primary forest, followed by secondary forest and swamp. - Several expected species, such as Crocidura obscurior, were not found, whereas we captured four specimens of the critically endangered (IUCN 2012) Wimmer's shrew Crocidura wimmeri, a species that has vanished from its type locality, Adiopodoume. Therefore, Banco National Park represents an important sanctuary, not only for plants, birds and primates, but also for other small forest vertebrates.
Molecular phylogenetics and evolution, Oct 10, 2012
The tribe Myonycterini comprises five fruit bat species of the family Pteropodidae, which are end... more The tribe Myonycterini comprises five fruit bat species of the family Pteropodidae, which are endemic to tropical Africa. Previous studies have produced conflicting results about their interspecific relationships. Here, we performed a comparative phylogeographic analysis based on 148 complete cytochrome b gene sequences from the three species distributed in West Africa and Central Africa (Myonycteris torquata, Lissonycteris angolensis and Megaloglossus woermanni). In addition, we investigated phylogenetic relationships within ...
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Papers by Blaise Kadjo