Startseite Reproduction in urban commensal rodents: the case of Mastomys natalensis from Niamey, Niger
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Reproduction in urban commensal rodents: the case of Mastomys natalensis from Niamey, Niger

  • Madougou Garba und Gauthier Dobigny EMAIL logo
Veröffentlicht/Copyright: 9. November 2013
Mammalia
Aus der Zeitschrift Mammalia Band 78 Heft 2

Abstract

Most wild Sahelian rodents display a seasonal reproduction that is usually related to rainfall, hence resources availability. Mastomys natalensis is a well-documented and major pest rodent species. In East Africa where it occurs outdoors, the species is characterized by marked population cycles. In contrast, it is mostly associated with humans in West Africa, and appears to live strictly indoors in the Sahel. Here, we have monitored the proportions of M. natalensis juveniles and sexually active adults within the city of Niamey, Niger. Our survey clearly shows that M. natalensis reproduces all year long, with no detectable seasonality. Altogether, our data confirm that reproduction may shift from seasonal to continuous when conditions are more favorable. They also suggest that the urban environment may represent an extreme habitat where resources are permanently available. From the perspective of rodent control in Niamey, our results highlight the need for a constant management policy that should be performed by public authorities.


Corresponding author: Gauthier Dobigny, Institut de Recherche pour le Développement, Centre de Biologie pour la Gestion des Populations (UMR IRD-INRA-Cirad-Montpellier SupAgro), Campus de Baillarguet CS30016, 34988 Montferrier-sur-Lez, France; and Centre Régional Agrhymet, Département Formation Recherche, BP11011, Niamey, Niger, e-mail:

Acknowledgments

We are grateful to S. Gagare and K. Hima for their help in the processing of rodents, to J.M. Duplantier and L. Granjon for helpful discussions, as well as to J. Britton-Davidian for English shaping of the text. Field and laboratory works were funded by the French “Institut de Recherche pour le Développement.” M. Garba was provisionally transferred from the DGPV (Minister of Agriculture, Niger) to Abdou Moumouni University (Niamey, Niger) as a PhD student (2009–2012; decision number 0326/MFP/T). He also benefited from an SRC-IRD research bursary for international mobility. Research in Niger was conducted in the framework of the scientific partnership agreement (number 301027/00) between IRD and the Republic of Niger.

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Received: 2013-3-11
Accepted: 2013-10-2
Published Online: 2013-11-9
Published in Print: 2014-5-1

©2014 by Walter de Gruyter Berlin/Boston

Artikel in diesem Heft

  1. Frontmatter
  2. Review
  3. Landscape genetics in mammals
  4. Original Studies
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  8. Reproduction in urban commensal rodents: the case of Mastomys natalensis from Niamey, Niger
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