Habitat mosaic as a driver of the resilience of native species: The case of the assemblage of small mammals from the city of Franceville, Gabon

Mangombi-Pambou J.B., Fossati-Gaschignard Odile, N'Dilimabaka Nadine, Banga Mve-Ella Octavie, Longo Pendy N.M., Dibakou S.E., Mediannikov Oleg, Fenollar Florence, Leroy Eric M., Bourgarel Mathieu. 2023. Habitat mosaic as a driver of the resilience of native species: The case of the assemblage of small mammals from the city of Franceville, Gabon. Journal of Zoology, 320 (3) : 179-192.

https://doi.org/10.1111/jzo.13063

Article de revue ; Article de recherche ; Article de revue à facteur d'impact

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Résumé : Rodents (Rodentia) are the most abundant and diverse order of mammals, present in all habitats, including urban areas. The traffic linked to globalisation has favoured their involvement in biological invasions that have an impact on local biodiversity, the economy and human health. In Franceville, Gabon, little is known about the rodent community. We therefore studied the composition and distribution of rodents along a gradient highlighting the heterogeneity of the city's landscape. The three habitat types studied showed no difference in small mammal abundance, while the diversity index was higher in the vegetated habitat (SDI = 0.73) compared to the outdoor (SDI = 0.71) and indoor (SDI = 0.45) habitats. Our work shows the importance of vegetal remnants in the city for the maintenance of native species. It also highlights the impact of introduced species on small mammal assemblages and the need for management to reduce the factors of their proliferation.

Mots-clés Agrovoc : rongeur, Rodentia, habitat, biodiversité, distribution géographique, savane, mammifère, espèce envahissante, ville, faune, musaraigne