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Diversity and dynamics in a community of small mammals in coastal Guinea, West Africa
Fichet-Calvet, E.; Lecompte, E.; Veyrunes, F.; Barrière, P.; Nicolas, V.; Koulémou, K (2009). Diversity and dynamics in a community of small mammals in coastal Guinea, West Africa. Belg. J. Zool. 139(2): 93-102
In: Belgian Journal of Zoology. Koninklijke Belgische Vereniging voor Dierkunde = Société royale zoologique de Belgique: Gent. ISSN 0777-6276; e-ISSN 2295-0451
Peer reviewed article  
Beschikbaar in  Auteurs 
Trefwoorden
    Abundance
    Biodiversity
    Guinea
    Reproduction
    Guinea [Marine Regions]
    Marien/Kust
Author keywords
    abundance; diversity; Lassa virus; Lophuromys sikapusi; Mastomyserythroleucus; Mus (Nannomys) spp.; Praomys rostratus; reproduction;season
Auteurs  Top 
  • Fichet-Calvet, E.
  • Lecompte, E.
  • Veyrunes, F.
  • Barrière, P.
  • Nicolas, V.
  • Koulémou, K
Abstract
    In order to investigate dynamics and reproduction in Mastomys erythroleucus inhabiting a high rainfall area in coastal Guinea, West Africa, a small mammal study was carried out through a 1-year longitudinal survey. Sampling was by standardized trapping in houses, cultivations, forest and savanna. Identification of the small mammals was based on morphology, and by molecular technique for sibling species. As a part of a larger survey on reservoirs of Lassa virus in Guinea, 106/289 specimens were screened for arenavirus and were found negative. The most abundant species was M. erythroleucus (46%) which occurred in all habitats, with a preference for savanna close to the cultivations. Its reproduction was seasonal and lasted for 8 months, beginning in the early rainy season and finishing in the early dry season. It was syntopic with Lophuromys sikapusi (13%) and Praomys rostratus (10%), which probably migrated from forest/orchards to cultivations in the late rainy season. Reproduction was high in many species in the late rainy season, butP. rostratus seemed to reproduce actively in the dry season, in contrast to L. sikapusi. Pygmy mice, Mus (Nannomys) spp., were abundant in the early rainy season only. The high species richness (14) is explained by the combined influence of Sudanian-Guinean-Congolian habitats. The role of the absence of bush fires is also debated in that context.
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